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Scientific Data Documentation
Audiometry Air Conduction (1976-1980)
DSN: CC37.HANES2.AUDIOAIR


ABSTRACT


CONTENTS

  I.  Background

      A.  NHANES II 1976-1980

          1.  Description of Survey

          2.  Target Population

          3.  Data Collection Techniques and Content

      B.  Use of NHANES Data

      C.  Editing of the data sets

      D.  Use of sample weights

      E.  Sample Design, Variance Estimation, and
          Hypothesis testing


 II.  GENERAL NOTES

      A.  DEMOGRAPHIC INFORMATION



 III.  DATA DESCRIPTION


       A.  INDEX

       B.  Record Layout

           1.  Demographic Data

           2.  Detailed Notes

 Use of NHANES Data

 NCHS requests the cooperation of recipients of data tapes in certain actions
 related to their use:

    1.  Any publication based on the data should acknowledge the National
        Center for Health Statistics (NCHS) as the original source.It should
        include a disclaimer which credits the authors for any analyses,
        interpretations, or conclusions, and not NCHS, which is responsible
        only for the data.

    2.  Consumers who wish to publish a technical description of the data
        should make a reasonable effort to ensure that the description is not
        inconsistent with that published by NCHS.This does not mean, however,
        that NCHS will review such descriptions.

    3.  The National Center for Health Statistics would appreciate receiving
        reprints of journal articles or other publications based upon find-
        ings from the NHANES II survey.  Please forward copies to:

              Division of Health Examination Statistics
              National Center for Health Statistics
              Center Building, Room 2-58,
              3700 East-West Highway
              Hyattsville, Maryland   20782


 Editing of the Data Sets

 The data users' tapes have been subjected to a great deal of careful editing.
 Some of the continuous data items have extremely high or low values and it
 has been verified that they do in fact appear that way on the original inter-
 view documents; that is, it has been verified that the values have not been
 incorrectly keyed.Within each data tape numerous consistency checks have been
 performed.  However, due to the large volume of data collected in the survey,
 it is likely that a small number of errors or discrepancies remain undetected
 . The Division of Health Examination Statistics, NCHS would appreciate if any
 such errors are detected that they be brought to our attention so that errata
 sheets can be issued to previous purchasers and corrections made if new data
 tapes are created.


BACKGROUND

 Description of Survey

 Description of Survey:  A detailed description of the design, content,ques-
 tionnaires, and operation of NHANES II is provided in the following report:
 Plan and Operation of the Second Health and Nutrition Examination Survey,
 1976-1980, DHHS Pub. No.  (PHS) 81-1317 Series 1, No. 15, Public Health
 Service, Superintendent of Documents, U.S. Government Printing Office,
 Washington, D.C. 20402. The stock number is 017-022-00752-5 and the cost is
 $5.50.  One copy is provided with the documentation herein, and a general
 summary of the data collection techniques and content is given in Appendix A.


DESCRIPTION OF POPULATION

 Target Population:NHANES II was conducted on a nationwide probability sample
 of approximately 28,000 persons, ages 6 months-74 years, from the civilian,
 noninstitutionalized population of the United States. The survey started in
 February 1976 and was completed in February 1980. The NHANES II sample was
 selected so that certain population groups thought to be at high risk of
 malnutrition (persons with low incomes, preschool children and the elderly)
 were oversampled. Adjusted sampling weights were then computed for 76 age,
 sex,and race categories in order to inflate the sample in such a manner as to
 closely reflect the estimated civilian noninstitutionalized U.S. population
 ages 6 months-74 years at the midpoint of the survey (March 1, 1978).


METHODS

 Use of Sample Weights

 NHANES II uses a multistage sample designed to represent the civilian
 noninstitutionalized population of the United States,6 months-74 years of age
 . Since the sample is not a simple random one, it is necessary to incorporate
 the person's sample weight for proper analysis of the data.The sample weight
 is a composite of the individual selection probability, adjustments for
 nonresponese, and poststratification adjustments.

 NHANES II provides information on 20,322 interviewed and examined individuals
 . In addition to the general examination components, several more detailed
 examinations were performed on subsamples of the population.  Therefore,
 instead of there being one sample weight per person,there are several sample
 weights for each person.  If a person was not selected for a particular
 subsample, their associated subsample weight is zero.  When analyzing the
 special subsamples, the analyst must be careful to select the appropriate
 sampling weight from the weights found in tape locations 282-317. For a more
 complete description of how the sample weights are calculated, see the
 detailed note section of this documentation.


 Sample Design, Variance Estimation, and Hypothesis Testing

 The data collected in the Second National Health and Nutrition Examination
 Survey (NHANES II) were obtained through a complex sample design involving
 both clustering and stratification.Because of the complex design and the
 ratio adjustments applied to the sample weights (see previous section on use
 of sample weights), the direct application of standard statistical analysis
 methods for variance estimation and hypothesis testing may be very misleading
 .The modification of statistical analysis procedures to incorporate the
 effects of complex survey designs is an important area of research;however,
 the current methodologies appropriate for the analysis of data from such
 surveys have not been made readily available in the standard packaged
 statistical software.

 There are computer programs available which do provide the capability of
 variance estimation for complex sample designs.  The balanced repeated
 replication approach 1/ is utilized in &REPERR-&PSALMS-OSIRIS.IV 2/ to
 calculate the variance-covariance matrix.SESUDAAN, SURREGR 3/ and SUPERCARP
 4/ are programs that calculate the variance-covariance matrix using the
 linearization approach 5/ (Taylor series expansion).

 In order to provide the user with the capability of estimating the complex
 sample variances in the NHANES II data using the above procedures, we have
 provided Strata and Pseudo Primary Sampling Unit (PSU) codes on all data
 tapes in positions 324-326. These variables and the sample weights are
 necessary for the calculation of variances.

 Even though the overall number of examined persons in this survey is quite
 large for statistical inference purposes, subclass analyses can lead to
 estimaters that are unstable, particularly estimates of variances.
 Consequently, analyses of subclasses require that the user pay particular
 attention to the coefficient of variation for the estimates of means,
 proportions and totals.In addition, small sample sizes, or a small number
 of PSU's used in the variance calculations may produce unstable estimates
 of the variances using the above computer programs.

 An NCHS Series 2 publication discussing these issues is in publication.6/


DEMOGRAPHIC INFORMATION, NHANES II

 Demographic Information

 An advance letter, announcing the forthcoming arrival of an interviewer from
 the U.S.Bureau of the Census,was mailed to each household that fell into the
 NHANES II probability sample.  The interviewer subsequently visited the
 household to ascertain its composition and to administer a questionnaire,the
 primary purpose of which was to obtain demographic information.  The
 questionnaire was administered to each potential sample person in each
 household that was available and competent enough to respond to questions.In
 the event that a potential sample person was not at home at the time of
 interview, any responsible adult in the household was asked to respond to
 the questions for the absent person.

 Demographic Data Summary
                                                                Tape Positions

 Sample Sequence Number                                                 1- 5
 Catalog Number (5371-for Demographic Data only)                        6- 9
 Data user work area                                                      10
 Size of place                                                            11
 SMSA-not SMSA                                                            12
 Data user work area                                                   13-23
 Type of living quarters                                                  24
 Land usage                                                         25
 If rural, asked does this place have 10 acres or more?                   26
 If 10 acres or more, asked if in the last 12 months did sales
   of farm produce and livestock amount to $50 or more?                   27
 If 10 acres or more, asked to $250 or more?                              28
 Data user work area                                                      29
 Total number of persons in household                                  30-31
 Total number of sample persons in household                           32-33

                               Sample Person Data

 Data user work area                                                      34
 Family relationship                                                      35
 Data user work area                                                      36
 Family unit number                                                    37-41
 Data user work area                                                   42-44
 Age-months (at interview)                                             45-46
 Age-years (at interview)                                              47-48
 Data user work area                                                   49-50
 Date of birth-month                                                   51-52
 Date of birth-year                                                    53-54
 Sex                                                            55
 Race                                                            56
 In what state was he/she born?                                        57-58
 Is he/she married, widowed, divorced, separated or
   never married?                                                         59
 Natural origin or ancestry                                            60-61
 Education level                                                       62-63
 Grade completed                                                          64
 What was he/she doing during most of the past 12 months?                 65
 What was he/she doing?                                                   66
 Did he/she work at a job or business at any time during the
   past three months?                                                     67
 Did he/she work full or part-time when working?                          68
 Was he/she working within last two weeks not counting work
   around the house?                                                      69
 Even though he/she did not work, does he/she have a job or
   business?                                                          70
 Was he/she looking for work or on layoff from a job?                     71
 Which, looking for work or on layoff from a job?                         72
 What kind of industry or business is this?                           73- 75
 What kind of work was he/she doing?                                  76- 78
 Was he/she in private company or business or individual for
   wages, salary or commission?                                           79
 Did he/she ever serve in the armed forces of the U.S.?                   80
 When did he/she serve?                                                   81
 Data user work area                                                  82- 90

                                 Household Data

 How many rooms are in this...? Count the kitchen, but not the bath       91
 How many bedrooms are in this...?                                        92
 Ask only of unrelated household members.  Do you have complete
   kitchen facilities in your living quarters, that is a kitchen
   sink with piped water, a refrigerator and a range or cookstove?        93
 Do you have access to complete kitchen facilities in this
   house?                                                       94
 Do you have access to a range or cookstove?                              95
 Do you have access to a refrigerator?                                    96
 Do you have access to a sink with piped water?                           97
 Is there piped water in this house (these living quarters)?              98
 Is there both hot and cold water?                                        99
 Are these kitchen facilities used by anyone not living in
   this household?                                                       100
 What is the main type of heating system you have?                   101-102
 Do you have air conditioning?                                           103
 How many motor vehicles are owned or regularly used for
   transportation by members of your family?                             104
 Is any language other than English spoken by family members
   living here?                                                          105
 What language?                                                          106
 Which of these income groups represents your total combined
   family income for the past 12 months?                             107-108
 During the past 12 months, how much money did you and
   all members of your family receive in wages or salaries
   before deductions (under $7,000 only)?                            109-112
 Social security or railroad retirement?                                 113
 Data user work area                                                     114
 If yes, how much?                                                   115-118
 Welfare payments or other public assistance?                            119
 Data user work area                                                     120
 If yes, how much?                                                   121-124
 Unemployment compensation or workmen's compensation?                    125
 Data user work area                                                     126
 If yes, how much?                                                   127-130
 Government employee pension or private pensions?                        131
 Data user work area                                                     132
 If yes, how much?                                                   133-136
 Dividends, interest or rent?                                            137
 Data user work area                                                     138
 If yes, how much?                                                   139-142
 Net income from their own business (nonfarm)
   professional practice, or partnership?                                143
 Data user work area                                                     144
 If yes, how much?                                                   145-148
 Net income from a farm?                                                 149
 Data user work area                                                     150
 If yes, how much?                                                   151-154
 Veteran's payments?                                                     155
 Data user work area                                                     156
 If yes, how much?                                                   157-160
 Alimony, child support or other support from persons not
   in household?                                                         161
 Data user work area                                                     162
 If yes, how much?                                                   163-166
 Any other income?                                                       167
 Data user work area                                                     168
 If yes, how much?                                                   169-172
 Total amount                                                      173-176
 Check Item B                                                          177
 Are you certified to participate in the food stamp program?             178
 Are you buying food stamps now?                                         179
 What is the main reason you are not participating in the
   program?                                                        180
 Are you certified for commodity distribution program?                   181
 Are you receiving commodity foods now for your family?                  182
 Why aren't you participating in the program?                            183
 Date of exam                                                      184-189
 Age in years (at examination)                                       190-191
 Data user work area                                                 192-205
 Race-sex recode for sample persons                                      206
 Farm, nonfarm recode for sample person                                  207
 Interview status                                                        208
 Region                                                    209
 Poverty index                                                       210-212
 Data user work area                                                 213-246

                             Head of Household Data

 Age in years                                                      247-248
 Data user work area                                                 249-250
 Date of birth-month                                                 251-252
 Date of birth-year                                                  253-254
 Sex                                                           255
 Race                                                           256
 In what state was he/she born?                                      257-258
 Is he/she married, widowed, divorced, separated or
   never married?                                                        259
 Natural origin or ancestry?                                         260-261
 Education level                                                     262-263
 Grade completed                                                         264
 What was he/she doing during most of the past 12 months?                265
 What was he/she doing?                                                  266
 Did he/she work at a job or business at any time during the
   past three months?                                                    267
 Did he/she work full or part-time when working?                         268
 Was he/she working within last two weeks not counting work
   around the house?                                                     269
 Even though he/she did not work, does he/she have a job or
   business?                                                         270
 Was he/she looking for work or on layoff from a job?                    271
 Which?, looking for work or on layoff from a job?                       272
 Type of industry or business                                        273-275
 What kind of work was he/she doing?                                 276-278
 Was he/she in private company or business or individual for
   wages, salary or commission?                                          279
 Did he/she ever serve in the armed forces of the U.S.?                  280
 When did he/she serve?                                                  281

                                 Sample Weights

 Examined final weight                                               282-287
 Medical history interview final weight                              288-293
 Glucose Tolerance Test final examined weight                        294-299
 Lead final examined weight                                          300-305
 Carboxyhemoglobin final examined weight                             306-311
 Bile acids final examined weight                                    312-317
 Data user work area                                                 318-323
 Strata code                                                     324-325
 Pseudo PSU code                                                         326
 Poverty, Nonpoverty segments                                            327
  (Not coded on Intake, Recall, Anthro and Glucose tapes)
 Data user work area                                                 328-350

 
 Use of Special Terms
 
 The term "data user work area" refers to blank areas in the data tape which
 are reserved for the user as needed.

 The term "blank, but applicable",is used to indicate a data item that was to
 have a response for a sample person but none was given. The terms "blank" and
 "Not applicable"refer to data items where the sample person was not supposed
 to respond to the question or receive the examination component.

 To more fully understand the questionnaire skip patterns and the
 categorizations used,see the Plan and Operation of the Second National Health
 and Nutrition Examination Survey document included with this documentation.
 All the questionnaires are included in this document.

Demographic Data - Record Layout

 001-005. Sample Sequence Number
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 001-   Sample Sequence Number
 005    00001-27796

 006-009. Catalog Number
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 006-   Catalog Number
 009    5371

 010. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 010    Data User Work Area

 011. Size of Place
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 011    Size of Place                                  See Detailed Notes

        1 - Urbanized area with 3,000,000 or
            more
        2 - Urbanized area 1,000,000 to
            2,999,999
        3 - Urbanized area with 250,000 to
            999,999
        4 - Urbanized area under 250,000
        5 - Urban place 25,000 or more outside
            urbanized area
        6 - Urban place 10,000-24,999 outside
            urbanized area
        7 - Urban place 2,500 to 9,999 outside
            urbanized area
        8 - Rural

 012. SMSA-Not SMSA
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 012    SMSA-Not SMSA                                   See Detailed Notes

        1 - In SMSA, in central city
        2 - In SMSA, not in central city
        4 - Not in SMSA

 013-023. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 013-   Data User Work Area
 023

 024. Type of Living Quarters
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 024    Type of living quarters

        1 - Housing unit
        2 - Other unit

 025. Land Usage
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 025    Land Usage

        1 - Urban
        2 - Rural

 026. If Rural, Does This Place have 10 Acres or More?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 026    If rural, asked does this place have
        10 acres or more?

        1 - Yes
        2 - No
        9 - Not Applicable

 027. 10 Acres or More, Are Farm Produce/Livestock Sales >= $50?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 027    If 10 acres or more, asked if in the
        last 12 months did sales of farm produce
        and livestock amount to $50 or more?

        1 - Yes
        2 - No
        9 - Not Applicable

 028. Less than 10 Acres, Farm Produce/Livestock Sales >= $250?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 028    If less than 10 acres, asked if in the
        last 12 months did sales or farm produce
        and livestock amount to $250 or more?

        1 - Yes
        2 - No
        9 - Not Applicable

 029. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 029    Data User Work Area

 030-031. Total Number of Persons in Household
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 030-   Total Number Of Persons In Household
 031
        01 - 15 - As given

 032-033. Total Number of Sample Persons in Household
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 032-   Total Number Of Sample Persons In
 033    Household

        01 - 06 - As Given

 Sample Person Data (Tape Pos. 034-090)

 034. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 034    Data User Work Area

 035. Family Relationship
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 035    Family Relationship

        1 - Head one person living alone or
            with non-relatives
        2 - Head 2 or more related persons in
            family
        3 - Wife
        4 - Child
        5 - Other relative
        6 - Foster child
        7 - Husband

 036. Examination Status
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 036    Examination Status

        1 - Examined

 037-041. Family Unit Code
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 037-   Family Unit Code                               See Detailed Notes
 041
        00001-21050 - As Given

 042-044. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 042-   Data User Work Area
 044

 045-046. Age-Months
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 045-   Age-Months                                        At Interview
 046
        06-11 Months
        Blank, if greater than 11 months

 047-048. Age-Years
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 047-   Age-Years                                         At Interview
 048
        01 - 74 Years
             00, If less than 12 months

 049-050. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 049-   Data User Work Area
 050

 051-052. Date-of-Birth-Month
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 051-   Date-Of-Birth-Month
 052
        01 - 12 Month

 053-054. Date-of-Birth-Year
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 053-   Date-Of-Birth-Year
 054
        01 - 79 Year

 055. Sex
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 055    Sex

        1 - Male
        2 - Female

 056. Race
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 056    Race                                            See Detailed Notes

        1 - White
        2 - Black
        3 - Other

 057-058. In What State was He/She Born?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 057-   In what state was he/she born?                  See Detailed Notes
 058
        01 - 97
        88 - Blank, but applicable

 059. Is He/She Married,Widowed,Divorced,Separated,Never Married?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 059    Is he/she married, widowed, divorced,
        separated, or never married?

        1 - Under 17
        2 - Married
        3 - Widowed
        4 - Divorced
        5 - Separated
        6 - Never married
        8 - Blank, but applicable

 060-061. Natural Origin or Ancestry
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 060-   Natural Origin or Ancestry
 061
        01 - Countries of Central or South
             America
        02 - Chicano
        03 - Cuban
        04 - Mexican
        05 - Mexicano
        06 - Mexican-American
        07 - Puerto Rican
        08 - Other Spanish
        09 - Other European, such as German,
             French, English, Irish
        10 - Black, Negro or Afro-American
        11 - American Indian or Alaskan Native
        12 - Asian or Pacific Islander Such as
             Chinese, Japanese, Korean,
             Philippino, Samoan
        13 - Another Group Not Listed
        88 - Blank, but applicable

 062-063. Highest Grade of School Attended
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 062-   Highest Grade Of School Attended
 063
        00 - None (regardless of age)
        21 - 28 - Elementary Grades (1-8)
        31 - 34 - High School (1-4)
        41 - 45 - College (1-5+)
        88 - Blank, but applicable

 064. Grade Completed
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 064    Grade Completed

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 065. What was He/She Doing During Most of the Past 12 Months?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 065    What was he/she doing during most of
        the past 12 months?

        1 - Working
        2 - Keeping house
        3 - Something else
        8 - Blank, but applicable
        Blank

 066. What was He/She Doing?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 066    What was he/she doing?

        1 - Layoff
        2 - Retired
        3 - Student
        4 - Ill
        5 - Staying home
        6 - Looking for work
        7 - Unable to work
        8 - Blank, but applicable
        0 - Other
        Blank

 067. Did He/She Work at Job/Business During Past 3 Months?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 067    Did he/she work at a job or business at
        any time during the past three months?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 068. Did He/She Work Full or Part-Time when Working?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 068    Did he/she work full or part-time when
        working?

        1 - Full time
        2 - Part time
        8 - Blank, but applicable
        Blank

 069. Was He/She Working Within Last 2 Wks. - Not Housework?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 069    Was he/she working within last two
        weeks not counting work around the
        house?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 070. Though He/She did Not Work does He/She have Job/Business?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 070    Even though he/she did not work does
        he/she have a job or business?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 071. Was He/She Looking for Work or on Layoff from a Job?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 071    Was he/she looking for work or on
        layoff from a job?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 072. Which Looking for Work or on Layoff from a Job?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 072    Which looking for work or on layoff
        from a job?

        1 - Looking
        2 - Layoff
        3 - Both
        8 - Blank, but applicable
        Blank

 073-075. What Kind of Industry/Business is This?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 073-   What kind of industry or business is              See Detailed Notes
 075    this?

        017 - 998 (last digit 7, 8, 9)
        000 - Blank, but applicable
        Blank

 076-078. What Kind of Work was He/She Doing?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 076-   What kind of work was he/she doing?               See Detailed Notes
 078

        001 - 992 - Occupation (last digit
                    0-6)
        000 - Blank, but applicable
        Blank

 079. Was He/She in Private Co./Bus. or Working for Individual?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 079    Was he/she in private company or
        business or working for individual for
        wages, salary or commission?

        1 - Private
        2 - A Federal government employee
        3 - A State government employee
        4 - A local government employee
        5 - Incorporated-Own
        6 - Self-employed (or farm)
        7 - Working without pay in family
            business or farm
        8 - Never worked
        0 - Blank, but applicable
        Blank

 080. Did He/She Ever Serve in the Armed Forces of the U.S.?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 080    Did he/she ever serve in the armed
        forces of the U.S.?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 081. When did He/She Serve?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 081    When did he/she serve?

        1 - Vietnam
        2 - Korean War
        3 - World War II
        4 - World War I
        5 - Post Vietnam
        6 - Other Service
        8 - Blank, but applicable
        9 - Do not know
        Blank

 082-090. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 082-   Data User Work Area
 090

 Household Data (Tape Pos. 091-246)

 091. Number of Rooms in This ...
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 091    How many rooms are in this..?  Count
        the kitchen, but not the bath.

        1 - 8 Rooms
        9 - 9 Or More Rooms

 092. Number of Bedrooms in This ...
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 092    How many bedrooms are in this - ?

        0 - 7 Bedrooms - More than 7 bedrooms
                         coded as 7

 093. Do You have Complete Kitchen Facilities in Living Quarters?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 093    Ask only of unrelated household members.
        Do you have complete kitchen facilities
        in your living quarters, that is a
        kitchen sink with piped water, a
        refrigerator and a range or cookstove?

        1 - Yes
        2 - No
        Blank

 094. Do You have Access to Complete Kitchen Facilities in House?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 094    Do you have access to complete kitchen
        facilities in this house?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 095. Do You have Access to a Range or Cookstove?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 095    Do you have access to a range or
        cookstove?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 096. Do You have Access to a Refrigerator?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 096    Do you have access to a refrigerator?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 097. Do You have Access to a Sink with Piped Water?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 097    Do you have access to a sink with
        piped water?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 098. Is There Piped Water in this House?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 098    Is there piped water in this house
        (these living quarters)?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 099. Is there Both Hot and Cold Water?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 099    Is there both hot and cold water?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 100. Kitchen Facilities Used by Anyone not Living in Household?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 100    Are these kitchen facilities used by
        anyone not living in this household?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 101-102. Main Type of Heating System
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 101-   What is the main type of heating system
 102    you have?

        11 - Steam or hot water system
        12 - Central warm air furnace with
             ducts to individual rooms or
             central heat pump (forced air)

        13 - Built in electric units
             (permanently installed in wall,
             ceiling or baseboard
        14 - Floor, wall or pipeless furnace
        15 - Circulating, radiant or room
             heaters, with flue or vent,
             burning gas, oil, or kerosene
        16 - Circulating, radiant, or room
             heaters (not portable) without
             flue or vent burning gas, oil or
             kerosene
        17 - Fireplace or stoves burning coal,
             wood or coke
        18 - Portable room heaters of any kind
        19 - Some other type
        20 - None, unit is not heated
        88 - Blank, but applicable

 103. Do You have Air Conditioning?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 103    Do you have air conditioning?

        1 - Yes, individual room unit
        2 - Yes, central air conditioning
        3 - No
        8 - Blank, but applicable

 104. Number of Motor Vehicles Owned/Used by Family Members
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 104    How many motor vehicles are owned or
        regularly used for transportation by
        members of your family?

        0 - None
        1 - 8 Vehicles (more than 8 coded as 8)
        9 - Blank, but applicable

 105. Is Any Language Other than Eng. Spoken by Family Members?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 105    Is any language other than English
        spoken by family members living here?

        1 - Yes
        2 - No
        8 - Blank, but applicable

 106. What Language?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 106    What language?

        0 - German
        1 - Italian
        2 - French
        3 - Polish
        4 - Russian
        5 - Spanish
        6 - Chinese
        7 - Other language
        8 - Blank, but applicable
        9 - Not applicable

 107-108. Income Group Representing Total Combined Family Income
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 107-   Which of these income groups represents          See Detailed Notes
 108    your total combined family income for
        the past 12 months?

        11 - Under $1,000
        12 - $1,000-1,999
        13 - $2,000-2,999
        14 - $3,000-3,999
        15 - $4,000-4,999
        16 - $5,000-5,999
        17 - $6,000-6,999
        18 - $7,000-9,999
        19 - $10,000-14,999
        20 - $15,000-19,999
        21 - $20,000-24,999
        22 - $25,000 and over
        88 - Blank, but applicable

 109-112. Amt. Money You & Family Members Received in Past 12 Mo.
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 109-   During the past 12 months, how much
 112    money did you and all members of your
        family receive in wages or salaries
        before deductions?

        0000 - 6999 Amount
        8888 - Blank, but applicable
        Blank

 113. Social Security or Railroad Retirement?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 113    Social security or railroad
        retirement?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 114. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 114    Data User Work Area

 115-118. If Yes, How Much? (Social Security/Railroad Retirement)
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 115-   If yes, how much?
 118
        0038 - 6828 Amount
        8888 - Blank, but applicable
        Blank

 119. Welfare Payments or Other Public Assistance?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 119    Welfare payments or other public
        assistance?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 120. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 120    Data User Work Area

 121-124. If Yes, How Much? (Welfare Payments/Other Public Ass.)
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 121-   If yes, how much?
 124
        0012 - 6800 Amount
        8888 - Blank, but applicable
        Blank

 125. Unemployment Compensation or Workman's Compensation?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 125    Unemployment Compensation or Workman's
        Compensation

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 126. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 126    Data User Work Area

 127-130. If Yes, How Much? (Unemployment/Workman's Compensation)
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 127-   If yes, how much?
 130
        0015 - 5640 Amount
        8888 - Blank, but applicable
        Blank

 131. Government Employee Pension or Private Pensions?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 131    Government Employee Pension or Private
        Pensions?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 132. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 132    Data User Work Area

 133-136. If Yes, How Much? (Gov't. Employee/Private Pensions)
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 133-   If yes, how much?
 136
        0036 - 6000 Amount
        8888 - Blank, but applicable
        Blank

 137. Dividends, Interest or Rent?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 137    Dividends, Interest or Rent?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 138. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 138    Data User Work Area

 139-142. If Yes, How Much? (Dividends, Interest or Rent)
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 139-   If yes, how much?
 142
        0001 - 5200 Amount
        8888 - Blank, but applicable
        Blank

 143. Net Income from Own Bus.,Professional Practice,Partnership?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 143    Net income from their own business
        (nonfarm) professional practice, or
        partnership?

        1 - Yes
        2 - No
        3 - Loss
        8 - Blank, but applicable
        Blank

 144. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 144    Data User Work Area

 145-148. If Yes, How Much? (Net Income from Business)
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 145-   If yes, how much?
 148
        0001 - 6800 Amount
        8888 - Blank, but applicable
        Blank

 149. Net Income from a Farm?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 149    Net income from a farm?

        1 - Yes
        2 - No
        3 - Loss
        8 - Blank, but applicable
        Blank

 150. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 150    Data User Work Area

 151-154. If Yes, How Much? (Net Income from a Farm)
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 151-   If yes, how much?
 154
        0000 - 6500 Amount
        8888 - Blank, but applicable
        Blank

 155. Veterans Payments?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 155    Veterans payments?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 156. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 156    Data User Work Area

 157-160. If Yes, How Much? (Veterans Payments)
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 157-   If yes, how much?
 160
        0060 - 6000 Amount
        8888 - Blank, but applicable
        Blank

 161. Alimony, Child Support or Other Support?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 161    Alimony, child support or other support
        from persons not in household?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 162. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 162    Data User Work Area

 163-166. If Yes, How Much? (Alimony,Child Support,Other Support)
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 163-   If yes, how much?
 166
        0020 - 6900 Amount
        8888 - Blank, but applicable
        Blank

 167. Any Other Income?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 167    Any other income?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 168. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 168    Data User Work Area

 169-   If yes, how much?
 172
        0003 - 6403 Amount
        8888 - Blank, but applicable
        Blank

 173-176. Total Amount
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 173-   Total Amount                                      Q 21 & 22
 176
        0000 - 6999 Amount
        8888 - Blank, but applicable
        Blank

 177. Check Item B
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 177    Check Item B

        2 - Food stamps available
        4 - Both - Food Stamps and
            commodities

 178. Are You Certified to Participate in Food Stamps Program?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 178    Are you certified to participate in
        the food stamp program?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Don't know

 179. Are You Buying Food Stamps Now?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 179    Are you buying food stamps now?

        1 - Yes, Regularly
        2 - Yes, Occasionally
        3 - No
        8 - Blank, but applicable
        Blank

 180. Main Reason You are Not Participating in Food Stamps Prog.?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 180    What is the main reason you are not
        participating in the program?

        1 - No need
        2 - Not enough money at the time
        3 - No transportation
        4 - Pride
        5 - Other
        8 - Blank, but applicable
        Blank

 181. Are You Certified for Commodity Distribution Program?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 181    Are you certified for commodity
        distribution program?

        1 - Yes
        2 - No
        9 - Do not know
        Blank

 182. Are You Receiving Commodity Foods Now for Your Family?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 182    Are you receiving commodity foods now
        for your family?

        1 - Yes, regularly
        2 - Yes, occasionally
        3 - No
        Blank

 183. Reason Your Not Participating in the Commodity Foods Prog.?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 183    Why aren't you participating in the
        program?

        1 - No need
        2 - No transportation
        3 - Pride
        4 - Other
        8 - Blank, but applicable
        Blank

 184-185. Date of Exam Month
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 184-   Date of Exam Month                                Control Record
 185
        01 - 12

 186-187. Date of Exam Day
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 186-   Date of Exam Day                                  Control Record
 187
        00 - 31

 188-189. Date of Exam Year
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 188-   Date of Exam Year                                 Control Record
 189
        76 - 80

 190-191. Age Years
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 190-   Age Years                                         At Examination
 191
        01 - 75 Years
        00 - If less than 12 months or non-
             examined

 192-205. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 192-   Data User Work Area
 205

 206. Race Sex Recode for Sample Person
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 206    Race Sex Recode For Sample Person                See Detailed Notes

        1 - Male, White
        2 - Male, Black
        3 - Male, Other
        4 - Female, White
        5 - Female, Black
        6 - Female, Other

 207. Farm, Non-Farm Recode for Sample Person
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 207    Farm, Non-Farm Recode For Sample Person           See Detailed Notes

        1 - Farm
        2 - Non-Farm

 208. Interview Status
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 208    Interview Status

        1 - Interviewed

 209. Region
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 209    Region                                            See Detailed Noted

        1 - Northeast
        2 - Midwest
        3 - South
        4 - West

 210-212. Poverty Index
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 210-   Poverty Index (x.xx)                            See Detailed Notes
 212
        001 - 880 - As Given
        999 - Unknown

 213-246. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 213-   Data User Work Area
 246

 Head of Household Data (Tape Pos. 247-281)

 247-248. Age Years
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 247-   Age Years
 248
        15 - 99 Years (more than 100 coded
                as 99)

 249-250. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 249-   Data User Work Area
 250

 251-252. Date-of-Birth-Month
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 251-   Date-Of-Birth-Month
 252
        01 - 12 Month
        88 - Blank, but applicable

 253-254. Date-of-Birth-Year
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 253-   Date-Of-Birth-Year
 254
        00 - 99 Year

 255. Sex
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 255    Sex

        1 - Male
        2 - Female

 256. Race
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 256    Race                                              See Detailed Notes

        1 - White
        2 - Black
        3 - Other

 257-258. In What State was He/She Born?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 257-   In what state was he/she born?                    See Detailed Notes
 258
        01 - 97
        88 - Blank, but applicable

 259. Is He/She Married,Widowed,Divorced,Separated,Never Married?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 259    Is he/she married, widowed, divorced,
        separated, or never married?

        1 - Under 17
        2 - Married
        3 - Widowed
        4 - Divorced
        5 - Separated
        6 - Never married
        8 - Blank, but applicable

 260-261. Natural Origin or Ancestry
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 260-   Natural Origin or Ancestry?
 261
        01 - Countries of Central or South
             America
        02 - Chicano
        03 - Cuban
        04 - Mexican
        05 - Mexicano
        06 - Mexican-American
        07 - Puerto Rican
        08 - Other Spanish
        09 - Other European, such as German,
             French, English, Irish
        10 - Black, Negro or Afro-American
        11 - American Indian or Alaskan Native
        12 - Asian or Pacific Islander Such as
             Chinese, Japanese, Korean,
             Philippino, Samoan
        13 - Another Group Not Listed
        88 - Blank, but applicable

 262-263. Highest Grade Attended
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 262-   Highest Grade Attended
 263
        00 - None (regardless of age)
        21 - 28 - Elementary Grades (1-8)
        31 - 34 - High School (1-4)
        41 - 45 - College (1-5+)
        88 - Blank, but applicable

 264. Grade Completed
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 264    Grade Completed

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 265. What was He/She Doing During Most of the Past 12 Months?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 265    What was he/she doing during most of
        the past 12 months?

        1 - Working
        2 - Keeping house
        3 - Something else
        8 - Blank, but applicable
        Blank

 266. What was He/She Doing?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 266    What was he/she doing?

        1 - Layoff
        2 - Retired
        3 - Student
        4 - Ill
        5 - Staying home
        6 - Looking for work
        7 - Unable to work
        8 - Blank, but applicable
        0 - Other
        Blank

 267. Did He/She Work at Job/Business During Past 3 Months?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 267    Did he/she work at job or business
        during past three months?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 268. Did He/She Work Full or Part-Time when Working?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 268    Did he/she work full or part-time when
        working?

        1 - Full time
        2 - Part time
        8 - Blank, but applicable
        Blank

 269. Did He/She Work at Any Time Last 2 Wks. - Not Housework?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 269    Did he/she work at any time the last
        two weeks not counting work around
        the house?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 270. Though He/She did Not Work, Does He/She have Job/Business?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 270    Even though he/she did not work, does
        he/she have a job or business?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 271. Was He/She Looking for Work or on Layoff from a Job?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 271    Was he/she looking for work or on
        layoff from a job?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 272. Which, Looking for Work or on Layoff from a Job?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 272    Which, looking for work or on layoff
        from a job?

        1 - Looking
        2 - Layoff
        3 - Both
        8 - Blank, but applicable
        Blank

 273-275. Type of Industry or Business?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 273-   Type of industry or business?                     See Detailed Notes
 275

        017 - 998 (last digit 7, 8, 9)
        000 - Blank, but applicable
        Blank

 276-278. What Kind of Work was He/She Doing?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 276-   What kind of work was he/she doing?               See Detailed Notes
 278

        001 - 992 - Occupation (last digit
                    0-6)
        000 - Blank, but applicable
        Blank

 279. Was He/She in Private Co./Bus. or Working for Individual?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 279    Was he/she in private company or
        business or working for individual for
        wages, salary or commission?

        1 - Private
        2 - A Federal government employee
        3 - A State government employee
        4 - A local government employee
        5 - Incorporated-Own
        6 - Self-employed (or farm)
        7 - Working without pay in family
            business or farm
        8 - Never worked
        0 - Blank, but applicable
        Blank

 280. Did He/She Ever Serve in the Armed Forces of the U.S?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 280    Did he/she ever serve in the armed
        forces of the U.S.?

        1 - Yes
        2 - No
        8 - Blank, but applicable
        Blank

 281. When did He/She Serve?
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

 281    When did he/she serve?

        1 - Vietnam
        2 - Korean War
        3 - World War II
        4 - World War I
        5 - Post Vietnam
        6 - Other Service
        8 - Blank, but applicable
        9 - Do not know
        Blank

 Sample Weights (Tape Pos. 282-350)

 282-287. Examined Final Weight
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

        SEE DETAILED NOTES FOR POSITIONS
        282-326

 282-   Examined Final Weight
 287
        001218 - 079634

 288-293. Medical History Interview Final Weight
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

        SEE DETAILED NOTES FOR POSITIONS
        282-326

 288-   Medical History Interview Final Weight
 293
        001171 - 071969

 294-299. Glucose Tolerance Test Final Examined Weight
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

        SEE DETAILED NOTES FOR POSITIONS
        282-326

 294-   Glucose Tolerance Test Final Examined
 299    Weight

        003502 - 084477
        000000

 300-305. Lead Final Examined Weight
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

        SEE DETAILED NOTES FOR POSITIONS
        282-326

 300-   Lead Final Examined Weight
 305
        001218 - 084115
        000000

 306-311. Carboxyhemoglobin Final Examined Weight
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

        SEE DETAILED NOTES FOR POSITIONS
        282-326

 306-   Carboxyhemoglobin Final Examined Weight
 311
        002546 - 110759
        000000

 312-317. Bile Acids Final Examined Weight
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

        SEE DETAILED NOTES FOR POSITIONS
        282-326

 312-   Bile Acids Final Examined Weight
 317
        003519 - 087638
        000000

 318-323. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

        SEE DETAILED NOTES FOR POSITIONS
        282-326

 318-   Data User Work Area
 323

 324-325. STRATA
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

        SEE DETAILED NOTES FOR POSITIONS
        282-326

 324-   STRATA
 325
        01 - 32

 326. PSEUDO Primary Sampling Unit
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

        SEE DETAILED NOTES FOR POSITIONS
        282-326

 326    PSEUDO Primary Sampling Unit

        1 OR 2

 328. Poverty/Non-Poverty Segments
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

        SEE DETAILED NOTES FOR POSITIONS
        282-326

 328    Poverty/Non-Poverty Segments

        1-Non-Poverty
        2-Poverty

 328-350. Data User Work Area
 TAPE                                      ** CONTROL  NHANES II DATA SOURCE
 LOC.   ITEM DESCRIPTION & CODES              COUNTS   OR NOTES

        SEE DETAILED NOTES FOR POSITIONS
        282-326

 328-   Data User Work Area
 350


DETAILED NOTES, DEMOGRAPHIC DATA

 Tape Position 11 - Size of Place
 
 Size of place classification was derived from the 1970 census. According to
 the definition used in the 1970 census, the urban population was comprised of
 all persons living in (a) places of 2,500 inhabitants or more incorporated as
 cities, boroughs (except Alaska),villages and towns (except towns in New York
 ,New England States,and Wisconsin),but excluding those persons living in the
 rural portions of extended cities; (b) unincorporated places of 2,500
 inhabitants or more; and (c) other territories included in urbanized areas.
 the remaining population was classified as rural.

 Urban areas are further classified by population size for places within
 urbanized areas and other places outside urbanized areas.

 Tape Position 12 - SMSA

 Except in New England,a standard metropolitan statistical area is basically a
 county or a group of contiguous counties which contains at least one city of
 50,000 inhabitants or more, or "twin cities" with a combined population of at
 least 50,000. In addition to the county or counties containing such a city or
 cities, contiguous counties are included in an SMSA if, according to the 1970
 census, they are socially and economically integrated with the central city.
 Each SMSA must include at least one central city,and the complete title of an
 SMSA identifies the central city or cities. In New England, SMSA's consist of
 towns and cities, rather than counties.

 Tape Positions 37-41 - Family Unit Code

 All related sample persons in the same family unit have the same computer
 generated family unit code.  This will enable analysis of individual family
 units.

 Tape Positions 56, 206, 256 - Race

 The race of the respondent was marked by observation and the interviewers
 were instructed to assume the race of all related persons was the same as the
 respondent unless otherwise learned.The race categories were "White","Black"
 or "Other".  If the appropriate category could not be marked by observation,
 then race was asked.  Interviewers were instructed to record persons who
 responded with something other than White or Black,such as Japanese,Chinese,
 American Indian, Korean, Hindu, Eskimo, etc., as "Other"; and to include
 Mexicans,Puert Ricans and other persons of Latin American descent in "White",
 unless definitely Black, American Indian, or of other non-white race.

Tape Positions 57-58 and 257-258

                                  United States
 Name of Place                                                           Code

 Alabama                                                      01
 Alaska                                                     02
 Arizona                                                      04
 Arkansas                                                       05
 California                                                         06
 Colorado                                                       08
 Connecticut                                                          09
 Delaware                                                       10
 District of Columbia                                                     11
 Florida                                                      12
 Georgia                                                      13
 Hawaii                                                     15
 Idaho                                                            16
 Illinois                                                       17
 Indiana                                                      18
 Iowa                                                            19
 Kansas                                                     20
 Kentucky                                                       21
 Louisiana                                                        22
 Maine                                                            23
 Maryland                                                       24
 Massachusetts                                                            25
 Michigan                                                       26
 Minnesota                                                        27
 Mississippi                                                          28
 Missouri                                                       29
 Montana                                                      30
 Nebraska                                                       31
 Nevada                                                     32
 New Hampshire                                                            33
 New Jersey                                                         34
 New Mexico                                                         35
 New York                                                       36
 North Carolina                                                           37
 North Dakota                                                           38
 Ohio                                                            39
 Oklahoma                                                       40
 Oregon                                                     41
 Pennsylvania                                                           42
 Rhode Island                                                           44
 South Carolina                                                           45
 South Dakota                                                           46
 Tennessee                                                        47
 Texas                                                            48
 Utah                                                            49
 Vermont                                                      50
 Virginia                                                       51
 Washington                                                         53
 West Virginia                                                            54
 Wisconsin                                                        55
 Wyoming                                                      56

                       Outlying Areas of the United States

 Name of Place                         Code             Description

 American Samoa                       60    U.S. territory in the Pacific
 Canal Zone                           61    Territory in Panama leased by U.S.
 Canton and Enderbury Islands         62    Under common US-UK administration
 Guam                                 66    U.S. territory in the Pacific
 Johnston Atoll                             U.S. territory in the Pacific,
                                              includes Sand Island
 Midway Islands                       71    U.S. territory in the Pacific
 Puerto Rico                          72    Commonwealth associated with the
                                                U.S.
 Swan Islands                         74    U.S. territory in the Caribbean
 Trust Territories of the Pacific     75    U.S. administered, includes
   Islands                                    Caroline, Mariana, and Marshall
                                              Island Groups
 U.S. Miscellaneous Caribbean         76   Includes Navassa Islands, Quito
   Islands                                     Sueno Bank, Roncador Cay,
                                               Serrana Bank, Serranilla Bank
 U.S. Miscellaneous Pacific           77   Includes Kingman Reef, Howland,
   Islands                                     Baker and Jarvis Islands,
                                               Palmyra Atoll
 Virgin Islands                       78   U.S. territory in the Caribbean
 Wake Island                          79   U.S. territory in the Pacific

                                Foreign Countries

 North America                          91
 South America                          92
 Europe                                 93
 Africa                                 94
 Asia                                   95
 Australasia                            96
 Pacific Islands                        97


 Tape Pos. 73-75,76-78,273-275,276-278-Industry/Occupation Codes

 A person's occupation may be defined as his principal job or business. For
 this survey purpose, the principal job or business of a respondent is defined
 in one of the following ways:  If the person worked during the two-week
 interview period or had a job or business, the question concerning his
 occupation (or work) applies to his job during that period.If the respondent
 held more than one job, the question is directed to the one at which he spent
 the most time.  It refers to the one he considers most important when equal
 time is spent at each job.  A person who has not begun work at a new job, is
 looking for work, or is on layoff from work is questioned about his last
 full-time civilian job.A full-time job is defined as one at which the person
 spent 35 or more hours per week and which lasted two consecutive weeks or
 more. A person who has a job to which he has not yet reported and has never
 had a previous job or business is classified as a "new worker".

 The 1970 census of population Alphabetical Index of Industries and Occupa-
 tion was used in the coding of both the industry and occupation. Library of
 Congress Number 74-612012.  For sale by the Superintendent of Documents,U.S.
 Government Printing Office, Washington, D.C. 20402.  $3.00.  Stock Number
 0301-2283.

 Tape Positions 107-108 - Family Income Group

 The respondent was handed a card with 12 income ranges listed as Group A to
 Group L and asked "Which of these income groups represents your total com-
 bined family income for the past 12 months,that is,yours, your ...'s, etc?
 include income from all sources such as wages,salaries,social security or
 retirement benefits, help from relatives, rent from property and so forth."

 If the respondent answered Group A through G,that is with an income less than
 $7,000,then questions 21 and 22 detailing exact sources and amounts of income
 were asked; otherwise, these questions were skipped.

 No effort was made to reconcile amounts reported in detailed questions 21 and
 22 with the categorical response to the family income group question.  During
 the survey time period, no adjustments to the income groups or $7,000 value
 were made to account for inflation.

 Tape Position 207

 Land used for farming purposes (Code 1 in Tape Position 207) was identified
 as being rural land (Code 2 in Tape Position 25) consisting of 10 or more
 acres (Code 1 in Tape Position 26) with crop sales amounting to $50 or more
 (Code 1 in Tape Position 27), or rural land (Code 2 in Tape Position 25)
 consisting of less than 10 acres(Code 2 in Tape Position 26)with crop sales
 amounting to $250 or more (Code 1 in Tape Position 28).All other land is
 classified as nonfarm (Code 2 in Tape Position 207).

 Tape Position 209 - Region

 The United States was divided into four broad geographic regions of
 approximately equal population. Those regions, which deviate somewhat from
 the groups used by the Bureau of Census, are as follows:

      Region                            States Included

      Northeast                         Maine, Vermont, New Hampshire,
                                        Massachusetts, Connecticut, Rhode
                                        Island, New York, New Jersey, and
                                        Pennsylvania

      South                             Delaware, Maryland, District of
                                        Columbia, West Virginia, Virginia,
                                        Kentucky, Tennessee, North Carolina,
                                        South Carolina, Georgia, Florida,
                                        Alabama, Mississippi, Louisiana, and
                                        Arkansas

      Midwest                           Ohio, Illinois, Indiana, Michigan,
                                        Wisconsin, Minnesota, Iowa, Missouri

      West                              Washington, Oregon, California, Nevada,
                                        New Mexico, Arizona, Texas, Oklahoma,
                                        Kansas, Nebraska, North Dakota, South
                                        Dakota, Idaho, Utah, Colorado, Montana,
                                        Wyoming, Alaska, Hawaii


 Tape Positions 210-212 - Poverty Index
 
 Income status was determined by the Poverty Income Ratio (PIR).  Poverty
 statistics published in the Census Bureau reports 1-5 were based on the
 poverty index developed by the Social Security Administration (SSA) in 1964.
 (For a detailed discussion of the SSA poverty standards, see reference 6.)
 Modifications in the definition of poverty were adopted in 1969.7 The stand-
 ard data series in poverty for statistical use by all executive departments
 and establishments has been established.8

 The two components of the PIR are the total income of the household (numera-
 tors the median of the income group for incomes $7,000 and above; the sum of
 the porponent parts of the income questions for incomes under $7,000) and a
 multiple of the total income necessary to maintain a family with given
 characteristics on a nutritionally adequate food plan3 (denominator). The
 dollar value of the denominator of the PIR is constructed from a food plan
 (economy plan) necessary to maintain minimum recommended daily nutritional
 requirements.The economy plan is designated by the Department of Agriculture
 for "emergency or temporary use when funds are low."

 For families of three or more persons,the poverty level was set at three
 times the cost of the economy food plan.For smaller families and persons
 living alone,the cost of the economy food plan was adjusted by the relatively
 higher fixed expenses of these smaller households.

 The denominator or poverty income cutoff adjusts the family poverty income
 maintenance requirements by the family size, the sex of the family head, the
 age of the family head in families with one or two members, and the place of
 residence (farm, nonfarm).Annual revisions of the poverty income cutoffs are
 based on the changes in the average cost of living as reflected in the
 Consumer Price Index.

 As shown in the tables, the annual income considered to be the poverty level
 increases as the family size increases.  A family with any combination of
 characteristics and with the same income as shown in the table has been
 designated as having a PIR or poverty level of 1.0. The same family with
 twice the income found in the table would have a PIR of 2.0. Ratios of less
 than 1.0 can be described as "below poverty",ratios greater than or equal to
 1.0, as "at or above poverty".

 Poverty thresholds are computed on a national basis only. No attempt has been
 made to adjust these thresholds for regional,state,or other variations in the
 cost of living (except for the farm, nonfarm difference).None of the noncash
 public welfare benefits such as food stamp bonuses are included in the income
 of the low income families receiving these benefits.PIR has been adjusted by
 year (see tables) and accounts in some part for inflation.


 1   U.S. Bureau of the Census, Current Population Reports, Series P-60, No.
     107, "Money Income and Poverty Status of Families and Persons in the
     United States: 1976" (Advance Report) U.S. Government Printing Office,
     Washington, D.C., 1977.
 2   U.S. Bureau of the Census, Current Population Reports, Series P-60, No.
     116, "Money Income and Poverty Status of Families and Persons in the
     United States: 1977" (Advance Report) U.S. Government Printing Office,
     Washington, D.C., 1978.
 3   U.S. Bureau of the Census, Current Population Reports, Series P-60, No.
     120, "Money Income and Poverty Status of Families and Persons in the
     United States: 1978" (Advance Report), U.S. Government Printing Office,
     Washington, D.C., 1979.
 4   U.S. Bureau of the Census, Current Population Reports, Series P-60, No.
     125, "Money Income and Poverty Status of Families and Persons in the
     United States: 1979" (Advance Report), U.S. Government Printing Office,
     Washington, D.C., 1980.
 5   U.S. Bureau of the Census, Current Population Reports, Series P-60, No.
     127, "MoneyIncome and Poverty Status of Families and Persons in the
     United States: 1980"(Advance Data from the March 1981 Current Population
     Survey), U.S. Government Printing Office, Washington, D.C., 1981.
 6   Orshansky, M.: "Counting the Poor: Another Look at the Poverty Profile",
     Social Security Bulletin, January 1965; "Who's Who Among the Poor: A
     demographic View of Poverty", Social Security Bulletin, July 1965.
 7   U.S. Bureau of the Census, Current Population Reports, Series P-23,
     No. 28 "Special Studies", U.S. Government Printing Office, Washington,
     D.C., August 12, 1969.
 8   Circular No. A-46,Transmitted Memorandum No. 9,Executive Office of the
     President, Bureau of the Budget, August 29, 1969, and Exhibit L (rev.).

 Tape Positions 282-323

 A multistage estimation procedure was used to calculate the various NHANES
 II subsample sample weights that are necessary to use in any analysis of the
 data.The procedure has three basic components:(1) inflation by reciprocals
 of the probabilities of selection, (2) adjustment for nonresponse, and (3)
 poststratification ratio adjustment by age-sex-race. A brief description
 of each component is as follows:

     Inflation by reciprocals of the sampling probabilities.Since the survey
     utilized a three-stage sample design, there were three probabilities of
     selection:  (1) the probability of selecting the PSU,(2) the probability
     of selecting a segment (housing unit),and (3) the probability of select-
     ing a sample person.

     Adjustment for nonresponse.  Estimates from the NHANES II data were
     adjusted to account for sample persons who were not examined.  The
     estimates were inflated by a multiplication factor calculated within five
     selected income groups, three age groups, four regions, and standard
     metropolitan statistical area (SMSA) or non-SMSA.  The numerator of these
     factors was the sum of the weights for sample persons resulting from the
     reciprocal of the probability of selection, and the denominator was the
     sum of the weights for examined persons also resulting from the
     reciprocals of  the sampling probabilities.

 Poststratification by age-sex-race.  The estimates were ratio adjusted within
 each of 76 age-sex-race cells to an independent estimate,provided by the U.S.
 Bureau of the Census, of the population of each cell as of March 1, 1978,
 (approximate mid-point of the survey).  The ratio adjustment was a
 multiplication factor of which the numerator was the U.S.population and the
 denominator was the sum of the weights adjusted for nonresponse for examined
 persons.  This ratio estimation process makes the sample more closely
 representative of the civilian, noninstitutionalized population of the U.S.

 Potential bias of nonresponse.Usually a sizeable number of sample persons who
 initially are willing to complete the household information and some of the
 medical history questionnaire subsequently will not participate in the
 examination.This creates the potential for bias if these persons differ from
 other sample persons with respect to the variables being studied. Intense
 efforts were undertaken during NHANES II to develop and implement standard
 procedures and inducements that would reduce the number of nonrespondents
 and thereby reduce the potential for bias.

 The user needs to be aware of and should explore the potential bias for
 nonresponse in any analysis of the NHANES II data.


Tables (By Size of Family, Sex of Head, Farm-Nonfarm Residence)

 Table 15. Weighted Avg. Thresholds - Poverty Cutoffs in 1976
 
 Table 15.  WEIGHTED AVERAGE THRESHOLDS--POVERTY CUTOFFS IN 1976, BY SIZE OF
            FAMILY AND SEX OF HEAD, BY FARM-NONFARM RESIDENCE


                                                          NONFARM

 SIZE OF FAMILY UNIT            Total       Total     Male Head   Female Head
                               (Dollars)   (Dollars)   (Dollars)    (Dollars)

 1 Person (Unrelated
   Individual). . . . . . . . .  2 877       2 884       3 016        2 788
   14 to 64 Years . . . . . . .  2 954       2 959       3 069        2 840
   65 Years And Over. . . . . .  2 720       2 730       2 758        2 722

 2 Persons. . . . . . . . . . .  3 688       3 711       3 721        3 660
   Head 14 to 64 Years. . . . .  3 806       3 826       3 846        3 733
   Head 65 Years and Over . . .  3 417       3 445       3 447        3 428

 3 Persons. . . . . . . . . . .  4 515       4 540       4 565        4 414
 4 Persons. . . . . . . . . . .  5 786       5 815       5 818        5 790
 5 Persons. . . . . . . . . . .  6 838       6 876       6 884        6 799
 6 Persons. . . . . . . . . . .  7 706       7 760       7 766        7 709
 7 Persons Or More. . . . . . .  9 505       9 588       9 622        9 375


                                                            FARM

 SIZE OF FAMILY UNIT                       Total     Male Head   Female Head
                                          (Dollars)   (Dollars)    (Dollars)

 1 Person (Unrelated Individual). . . . .   2 438        2 532        2 348
   14 to 64 Years . . . . . . . . . . . .   2 542        2 608        2 413
   65 Years And Over. . . . . . . . . . .   2 322        2 344        2 313

 2 Persons. . . . . . . . . . . . . . . .   3 128        3 133        3 033
   Head 14 to 64 Years. . . . . . . . . .   3 267        3 271        3 159
   Head 65 Years and Over . . . . . . . .   2 928        2 928        2 922

 3 Persons. . . . . . . . . . . . . . . .   3 858        3 864        3 734
 4 Persons. . . . . . . . . . . . . . . .   4 950        4 953        4 840
 5 Persons. . . . . . . . . . . . . . . .   5 870        5 871        5 847
 6 Persons. . . . . . . . . . . . . . . .   6 585        6 584        6 607
 7 Persons Or More. . . . . . . . . . . .   8 072        8 068        8 428

 Table 15. Weighted Avg. Thresholds - Poverty Cutoffs in 1977
 
 Table 15.  WEIGHTED AVERAGE THRESHOLDS--POVERTY CUTOFFS IN 1977, BY SIZE OF
            FAMILY AND SEX OF HEAD, BY FARM-NONFARM RESIDENCE


                                                          NONFARM

 SIZE OF FAMILY UNIT            Total       Total     Male Head   Female Head
                               (Dollars)   (Dollars)   (Dollars)    (Dollars)

 1 Person (Unrelated
   Individual). . . . . . . . .  3 067       3 075       3 214        2 969
   14 to 64 Years . . . . . . .  3 147       3 152       3 267        3 023
   65 Years And Over. . . . . .  2 895       2 906       2 936        2 898

 2 Persons. . . . . . . . . . .  3 928       3 951       3 961        3 907
   Head 14 to 64 Years. . . . .  4 054       4 072       4 095        3 981
   Head 65 Years and Over . . .  3 637       3 666       3 670        3 646

 3 Persons. . . . . . . . . . .  4 806       4 833       4 860        4 708
 4 Persons. . . . . . . . . . .  6 157       6 191       6 195        6 162
 5 Persons. . . . . . . . . . .  7 279       7 320       7 329        7 238
 6 Persons. . . . . . . . . . .  8 208       8 261       8 268        8 197
 7 Persons Or More. . . . . . . 10 137      10 216      10 249        9 995


                                                            FARM

 SIZE OF FAMILY UNIT                       Total     Male Head   Female Head
                                          (Dollars)   (Dollars)    (Dollars)

 1 Person (Unrelated Individual). . . . .   2 588        2 672        2 498
   14 to 64 Years . . . . . . . . . . . .   2 709        2 776        2 569
   65 Years And Over. . . . . . . . . . .   2 475        2 495        2 563

 2 Persons. . . . . . . . . . . . . . . .   3 318        3 325        3 176
   Head 14 to 64 Years. . . . . . . . . .   3 466        3 474        3 278
   Head 65 Years and Over . . . . . . . .   3 128        3 131        3 079

 3 Persons. . . . . . . . . . . . . . . .   4 093        4 110        3 893
 4 Persons. . . . . . . . . . . . . . . .   5 273        5 274        5 213
 5 Persons. . . . . . . . . . . . . . . .   6 247        6 247        6 237
 6 Persons. . . . . . . . . . . . . . . .   7 026        7 026        7 040
 7 Persons Or More. . . . . . . . . . . .   8 708        8 706        8 738

 
 Table A-3. Weighted Avg. Thresholds at the Poverty Level in 1978

 Table A-3. WEIGHTED AVERAGE THRESHOLDS AT THE POVERTY LEVEL IN 1978, BY SIZE
             OF FAMILY AND SEX OF HEAD, BY FARM-NONFARM RESIDENCE


                                                          NONFARM
 SIZE OF FAMILY UNIT                                       Male        Female
                                   Total       Total       Head(1)     Head(1)

 1 Person (Unrelated
   Individual). . . . . . . . .   $3,302      $3,311      $3,460       $3,196
   14 to 64 Years . . . . . . .    3,386       3,392       3,516        3,253
   65 Years And Over. . . . . .    3,116       3,127       3,159        3,118

 2 Persons. . . . . . . . . . .    4,225       4,249       4,258        4,206
   Head 14 to 64 Years. . . . .    4,363       4,383       4,407        4,286
   Head 65 Years and Over . . .    3,917       3,944       3,948        3,923

 3 Persons. . . . . . . . . . .    5,178       5,201       5,231        5,065
 4 Persons. . . . . . . . . . .    6,628       6,662       6,665        6,632
 5 Persons. . . . . . . . . . .    7,833       7,880       7,888        7,806
 6 Persons. . . . . . . . . . .    8,825       8,891       8,895        8,852
 7 Persons Or More. . . . . . .   10,926      11,002      11,038       10,765


                                                            FARM
 SIZE OF FAMILY UNIT                                       Male        Female
                                              Total        Head(1)     Head(1)


 1 Person (Unrelated Individual). . . . .    $2,795       $2,898       $2,690
   14 to 64 Years . . . . . . . . . . . .     2,913        2,987        2,764
   65 Years And Over. . . . . . . . . . .     2,661        2,685        2,650

 2 Persons. . . . . . . . . . . . . . . .     3,578        3,582        3,497
   Head 14 to 64 Years. . . . . . . . . .     3,731        3,737        3,614
   Head 65 Years and Over . . . . . . . .     3,352        3,354        3,313

 3 Persons. . . . . . . . . . . . . . . .     4,413        4,430        4,216
 4 Persons. . . . . . . . . . . . . . . .     5,681        5,683        5,622
 5 Persons. . . . . . . . . . . . . . . .     6,714        6,714        6,700
 6 Persons. . . . . . . . . . . . . . . .     7,541        7,543        7,462
 7 Persons Or More. . . . . . . . . . . .     9,373        9,386        8,813


 1 For one person (i.e., unrelated individual), sex of the individual.

 Table 17. Weighted Avg. Thresholds - Poverty Cutoffs in 1979

 Table 17.  WEIGHTED AVERAGE THRESHOLDS--POVERTY CUTOFFS IN 1979, BY SIZE AND
            TYPE OF FAMILY, BY FARM-NONFARM RESIDENCE


                                                              NONFARM
                                                           Families With
 SIZE OF FAMILY UNIT             Total       Total         Female HHLDR,
                                                     No Husband(1)  All Other
                                                       Present     Families(2)
                               (Dollars)   (Dollars)   (Dollars)    (Dollars)

 1 Person (Unrelated
   Individual). . . . . . . . .    3 683       3 689       3 556        3 855
   14 to 64 Years . . . . . . .    3 773       3 778       3 619        3 912
   65 Years And Over. . . . . .    3 472       3 479       3 469        3 515

 2 Persons. . . . . . . . . . .    4 702       4 725       4 669        4 737
   Head 14 to 64 Years. . . . .    4 858       4 878       4 762        4 905
   Head 65 Years and Over . . .    4 364       4 390       4 362        4 394

 3 Persons. . . . . . . . . . .    5 763       5 784       5 624        5 820
 4 Persons. . . . . . . . . . .    7 386       7 412       7 381        7 416
 5 Persons. . . . . . . . . . .    8 736       8 775       8 690        8 785
 6 Persons. . . . . . . . . . .    9 849       9 914       9 843        9 922
 7 Persons Or More. . . . . . .   12 212      12 280      12 037       12 322


                                                                FARM
                                                           Families With
                                                           Female HHLDR,
                                                      No Husband    All Other
 SIZE OF FAMILY UNIT                        Total      Present(1)  Families(2)
                                          (Dollars)   (Dollars)    (Dollars)

 1 Person (Unrelated Individual). . . . .   3 138        3 001        3 236
   14 to 64 Years . . . . . . . . . . . .   3 254        3 076        3 324
   65 Years And Over. . . . . . . . . . .   2 963        2 948        2 988

 2 Persons. . . . . . . . . . . . . . . .   3 987        3 917        3 991
   Head 14 to 64 Years. . . . . . . . . .   4 156        4 027        4 163
   Head 65 Years and Over . . . . . . . .   3 730        3 686        3 732

 3 Persons. . . . . . . . . . . . . . . .   4 917        4 680        4 928
 4 Persons. . . . . . . . . . . . . . . .   6 329        6 261        6 332
 5 Persons. . . . . . . . . . . . . . . .   7 492        7 509        7 492
 6 Persons. . . . . . . . . . . . . . . .   8 424        8 309        8 428
 7 Persons Or More. . . . . . . . . . . .  10 533       10 178       10 547


 1 Includes female unrelated individuals.
 2 Includes male unrelated individuals.

 Table 17. Weighted Avg. Thresholds - Poverty Cutoffs in 1980

 Table 17. WEIGHTED AVERAGE THRESHOLDS--POVERTY CUTOFFS IN 1980, BY SIZE AND
            TYPE OF FAMILY, BY FARM-NONFARM RESIDENCE


                                                              NONFARM
                                                           Families With
 SIZE OF FAMILY UNIT             Total       Total         Female HHLDR,
                                                     No Husband(1)  All Other
                                                       Present     Families(2)
                               (Dollars)   (Dollars)   (Dollars)    (Dollars)

 1 Person (Unrelated
   Individual). . . . . . . . .  4 184       4 190       4 037        4 379
   14 to 64 Years . . . . . . .  4 286       4 290       4 109        4 441
   65 Years And Over. . . . . .  3 941       3 949       3 938        3 990

 2 Persons. . . . . . . . . . .  5 338       5 363       5 316        5 373
   Head 14 to 64 Years. . . . .  5 518       5 537       5 415        5 568
   Head 65 Years and Over . . .  4 954       4 983       4 946        4 988

 3 Persons. . . . . . . . . . .  6 539       6 565       6 388        6 605
 4 Persons. . . . . . . . . . .  8 385       8 414       8 382        8 418
 5 Persons. . . . . . . . . . .  9 923       9 966       9 878        9 976
 6 Persons. . . . . . . . . . . 11 215      11 269      11 227       11 274
 7 Persons Or More. . . . . . . 13 883      13 955      13 767       13 986


                                                              FARM
                                                         Families With
                                                         Female HHLDR,
                                                      No Husband    All Other
 SIZE OF FAMILY UNIT                         Total     Present(1)  Families(2)
                                           (Dollars)   (Dollars)    (Dollars)

 1 Person (Unrelated Individual). . . . .    3 539        3 392        3 680
   14 to 64 Years . . . . . . . . . . . .    3 693        3 492        3 773
   65 Years And Over. . . . . . . . . . .    3 359        3 347        3 392

 2 Persons. . . . . . . . . . . . . . . .    4 502        4 302        4 513
   Head 14 to 64 Years. . . . . . . . . .    4 714        4 497        4 721
   Head 65 Years and Over . . . . . . . .    4 233        4 185        4 237

 3 Persons. . . . . . . . . . . . . . . .    5 573        5 271        5 587
 4 Persons. . . . . . . . . . . . . . . .    7 170        7 152        7 170
 5 Persons. . . . . . . . . . . . . . . .    8 472        8 373        8 474
 6 Persons. . . . . . . . . . . . . . . .    9 613        9 168        9 625
 7 Persons Or More. . . . . . . . . . . .    11 915       12 133       11 389


 1 Includes female unrelated individuals.
 2 Includes male unrelated individuals.


AUDIOMETRIC AIR CONDUCTION TEST INFORMATION, AGES 4-19 YEARS

 Data Set Description
 
     This data tape contains demographic, and audiometric data for persons
     4-19 years old who were both interviewed and examined in the second
     National Health and Nutrition Examination Survey (NHANES II).

 Description of Audiometric Tests

     Each child or youth 4-19 years old was tested at the following four
     frequencies:  500, 1000, 2000, and 4000 Hertz (Hz), with the 1000 Hz
     frequency repeated a second time as a measure of the reliability of test
     results.  Hearing threshold level, as defined here, is the lowest
     intensity of a pure tone produced in the audiometer earphone that is
     just audible to the ear of the examinee in a specified number of
     trials.  The standard audiometers used in the survey were calibrated in
     accordance with the 1969 American National Standards Institute (ANSI)
     specifications.  Hence the zero sound intensity level on the dial of
     these instruments correspondents to the 1969 ANSI reference zero.


     Alternation of presentation to each ear was varied among examinees to
     safeguard against bias in testing.  The threshold recorded for each
     frequency was the lowest decibel (dB) level at which 50 percent or more
     of the responses were obtained, that is, in two out of three or three
     out of five trials.  Masking for the nontest ear was done in air
     conduction testing only on retest when there was a 40 dB difference or
     more in the thresholds for the two ears.  The effective range of
     audiometric testing was 0 to 100 dB.  Hearing threshold levels of 100 dB
     or more were coded "99."  Hearing threshold data obtained at 0 dB to -
     20 dB have been grouped at 0 dB in order to avoid reporting spurious
     findings due to nonlinearity of the hearing level attenuators of the six
     audiometers.  Hearing threshold data reported at 0 dB to 10 dB must be
     considered with caution as the linearity of the hearing level
     attenuators on several of the six audiometers was found to vary beyond
     acceptable tolerance limits.  Standardized testing procedures were used
     to insure as consistent test results as possible throughout the survey.
     Any condition such as earache, cold, or other problem that might affect
     the test results was also recorded.

 Caution Reuse of Statistical Summary Measures

     The data user is cautioned that statistical summary measures such as the
     mean, standard deviation and standard error will reflect the truncation
     of the distribution of pure-tone air conduction hearing levels at 0 dB
     and + 100 dB and nonlinearity at 0 dB to 10 dB.  Estimated percentiles
     at the median and above should be relatively free of the effects of
     distribution truncation and of measurement bias.  With these caveats in
     mind, these data provide data users with the opportunity to examine for
     themselves a large set of audiometric measurements made in a
     standardized manner on a representative sample of the 4-19 year old
     segment of the U.S. population.

 Medical History and Related Data Collection and Examinations

     Medical history data obtained in the household are available on other
     public use tapes available from NTIS (Catalog Numbers 5010 and 5020).
     Those tapes contain data on hearing and speech problems in addition to
     other medical history information.

     Tape Catalog Number 5010 contains data for children 3-11 years of age on
     running ear, ear infection, deafness, or trouble hearing (including age
     at onset), rating of hearing by ear, surgery on ears, hearing aid use,
     hearing testing, speech problems, speech therapy, relatives with hearing
     or speech problems, age when spoke first word, age when started to use
     sentences, and other language spoken.

     Tape Catalog Number 5020 contains data for persons 12-74 years old on
     ringing or funny noises in ears, running ear, ear infection, deafness,
     or trouble hearing (including age at onset), causes of hearing trouble,
     rating of hearing by ear, surgery on ears, hearing tested, hearing aid
     use and, for those at least 17 years old, job history related to noise
     level.

     Additional hearing and speech related data were also collected in the
     examination portion of the survey.  A speech pathology test involved the
     use of a tape recording of the subject's repetition of specially
     developed sentences.  It was carried out on examined persons between the
     ages of 4 and 6 years, permitting interpretations as an indication of
     problems with articulation and language development.  A comprehensive
     examination of the ear, nose, and throat (ENT) during the physical
     examination was performed by a physician on persons 6 months through 74
     years.  The examination included an inspection of the external ears,
     auditory canals, tympanic membranes, anterior nasal cavity, and oral
     pharynx.

 Data Editing

     Preliminary editing of the interview forms was done by personnel of
     NCHS.  They verified and corrected, to the extent possible, problematic
     data and did further edits for consistency, completeness, and accuracy
     of the data against microfilm records of the original questionnaire
     where needed.

 Audiometry Air Conduction Test Data Summary
                                                                     Positions

     Catalog Number..................................................  401-404
     Unused Positions................................................  405-408
     Audiometer Number...............................................  409-413
     ExaminerNumber.................................................  414-415
     Unused Positions................................................  416-417

     1000 Hertz -- Right Ear
          Retest Right with Masking on Left..........................  418-419
          Hearing Level..............................................  420-422

     1000 Hertz -- Left Ear
          Retest Left with Masking on Right..........................  423-424
          Hearing Level..............................................  425-427

     2000 Hertz -- Right Ear
          Retest Right with Masking on Left..........................  428-429
          Hearing Level..............................................  430-432

     2000 Hertz -- Left Ear
          Retest Left with Masking on Right..........................  433-434
          Hearing Level..............................................  435-437

     4000 Hertz -- Right Ear
          Retest Right with Masking on Left..........................  438-439
          Hearing Level..............................................  440-442

     4000 Hertz -- Left Ear
          Retest Left with Masking on Right..........................  443-444
          Hearing Level..............................................  445-447

     500 Hertz -- Right Ear
          Retest Right with Masking on Left..........................  448-449
          Hearing Level..............................................  450-452

     500 Hertz -- Left Ear
          Retest Left with Masking on Right..........................  453-454
          Hearing Level..............................................  455-457

     Repeated 1000 Hertz -- Right Ear
          Retest Right with Masking on Left..........................  458-459
          Hearing Level..............................................  460-462

     Repeated 1000 Hertz -- Left Ear
          Left with Masking on Right.................................  463-464
          Hearing Level..............................................  465-467

 3.  Audiometry Air Conduction Test Data Section

     Conditions Affecting Test Results...............................  468-475

     Unused Positions................................................  476-479

     Dummy Record Flag...............................................  480

 Audiometric Air Conduction Test Data - Record Layout

 401-404. Catalog Number
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES


 401-404   CATALOG NUMBER:  5306                      Numbers in this column
                                                      reflect the preprinted
                                                      circled numbers shown
                                                      on the source document.

 405-408. Unused Positions
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

 405-408   Unused Positions

 409-413. Audiometer Number
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

 409-413   Audiometer Number                          Audiometry Recording
                                                        Form
           20725, 20732, 20765, 20768, 20856,
             20861, 21244 - As given           5,784
           88888 - Blank but applicable           86            101
           Blank                                  31

 414-415. Examiner Number
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 414-415   Examiner Number

           02-25 - As given                    5,826
           88 - Blank, but applicable             44            102
           Blank                                  31

 416-417. Unused Positions
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

 416-417   Unused Positions

 1000 Hertz -- Right Ear (Tape Pos. 418-422)

 418-419. Retest Right with Masking on Left
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 418-419   Retest right with masking on left

           15-90 - As given in decibels           11
           88 - Blank, but applicable              3
           Blank                               5,887            103

 420-422. Hearing Level
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 420-422   Hearing Level

           000-099 - As given in decibels      5,717
           888 - Blank, but applicable           153
           Blank                                  31            104

 1000 Hertz -- Left Ear (Tape Pos. 423-427)

 423-424. Retest Left Ear with Masking on Right
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 423-424   Retest left ear with masking on
           right

           25-99 - As given in decibels           10
           88 - Blank, but applicable              2
           Blank                               5,889            105

 425-427. Hearing Level
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 425-427   Hearing Level

           000-099 - As given in decibels      5,714
           888 - Blank, but applicable           156
           Blank                                  31            106

 2000 Hertz -- Right Ear (Tape Pos. 428-432)

 428-429. Retest Right Ear with Masking on Left
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 428-429   Retest right ear with masking on
           left

           15-80 - As given in decibels           11
           88 - Blank, but applicable              2
           Blank                               5,888            107

 430-432. Hearing Level
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 430-432   Hearing Level

           000-099 - As given in decibels      5,713
           888 - Blank, but applicable           157
           Blank                                  31            108

 2000 Hertz -- Left Ear (Tape Pos. 433-437)

 433-434. Retest Left Ear with Masking on Right
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 433-434   Retest left ear with masking on
           right

           25-99 - As given in decibels           10
           88 - Blank, but applicable              -
           Blank                               5,891            109

 435-437. Hearing Level
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 435-437   Hearing Level

           000-099 - As given in decibels      5,711
           888 - Blank, but applicable           159
           Blank                                  31            110

 4000 Hertz -- Right Ear (Tape Pos. 438-442)

 438-439. Retest Right Ear with Masking on Left
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 438-439   Retest right ear with masking on
           left

           25-90 - As given in decibels           16
           88 - Blank, but applicable              2
           Blank                               5,883            111

 440-442. Hearing Level
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 440-442   Hearing Level

           000-099 - As given in decibels      5,709
           888 - Blank, but applicable           161
           Blank                                  31            112

 4000 Hertz -- Left Ear (Tape Pos. 443-447)

 443-444. Retest Left Ear with Masking on Right
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 443-444   Retest left ear with masking on
           right

           15-99 - As given in decibels           18
           88 - Blank, but applicable              3
           Blank                               5,880            113

 445-447. Hearing Level
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 445-447   Hearing Level

           000-099 - As given in decibels      5,711
           888 - Blank, but applicable           159
           Blank                                  31            114

 500 Hertz -- Right Ear (Tape Pos. 448-452)

 448-449. Retest Right Ear with Masking on Left
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 448-449   Retest right ear with masking on
           left

           10-85 - As given in decibels           11
           88 - Blank, but applicable              -
           Blank                               5,890            115

 450-452. Hearing Level
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 450-452   Hearing Level

           000-099 - As given in decibels      5,707
           888 - Blank, but applicable           163
           Blank                                  31            116

 500 Hertz -- Left Ear (Tape Pos. 453-457)

 453-454. Retest Left Ear with Masking on Right
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 453-454   Retest left ear with masking on
           right

           30-99 - As given in decibels           11
           88 - Blank, but applicable              2
           Blank                               5,888            117

 455-457. Hearing Level
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 455-457   Hearing Level

           000-099 - As given in decibels      5,709
           888 - Blank, but applicable           161
           Blank                                  31            118

 Repeated 1000 Hertz -- Right Ear (Tape Pos. 458-462)

 458-459. Retest Right Ear with Masking on Left
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 458-459   Retest right ear with masking on
           left

           40-85 - As given in decibels            8
           88 - Blank, but applicable              2
           Blank                               5,891            119

 460-462. Hearing Level
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 460-462   Hearing Level

           000-099 - As given in decibels      5,706
           888 - Blank, but applicable           164
           Blank                                  31            120

 Repeated 1000 Hertz -- Left Ear (Tape Pos. 463-467)

 463-464. Retest Left Ear with Masking on Right
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 463-464   Retest left ear with masking on
           right

           25-99 - As given in decibels           10
           88 - Blank, but applicable              2
           Blank                               5,889            121

 465-467. Hearing Level
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 465-467   Hearing Level

           000-099 - As given in decibels      5,707
           888 - Blank, but applicable           163
           Blank                                  31            122

 Conditions Affecting Test Results (Tape Pos. 468-475)
 
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

                                                      Audiometry Recording
                                                        Form

 468-471   0000-0234 - right justified with
           leading zeros, where:               5,868

           1    - None
           2    - Cold or sinustitis now
           3    - Ear discharge
           4    - Ringing or other noises
                  in ears
           8888 - Blank, but applicable            2
           Blank                                  31            123

 472-475   0000-5678 - right justified with
           leading zeros, where:               5,868

           5    - Equipment defect
           6    - Cold or sinustitis within
                  one week
           7    - Earache within week
           8    - Other, describe
           8888 - Blank, but applicable            2
           Blank                                  31            124

 476-479. Unused Positions
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

 476-479   Unused Positions

 480. Dummy Record Flag
 TAPE                                         CONTROL      NHANES II DATA
 POSITIONS     ITEM DESCRIPTION AND CODES     COUNTS       SOURCE OR NOTES

 480       Dummy Record Flag                              See Detailed Notes

           1     - Dummy                          31
           Blank - Not dummy                   5,870


DETAILED NOTES, AUDIOMETRIC AIR CONDUCTION TEST DATA

 Tape Position 327 - Poverty/Non-Poverty Segments
 
 Individuals interviewed during NHANES II were selected by means of a
 multi-stage, stratified probability sample of loose clusters of households
 by geographic locations.8  Clusters of housing units (segments) were
 deignated as either "poverty" or "nonpoverty" (See Detailed Notes for
 description of Poverty Index) in the sample selection process to insure
 adequate representation of low income persons in the sample.

 Tape Positions for Hearing Thresholds

 TAPE POSITIONS 418-419, 420-422, 423-424, 425-427, 428-429, 430-432,
 433-434, 435-437, 438-439, 440-442, 443-444, 445-447, 448-449, 450-452,
 453-454, 455-457, 458-459, 460-462, 463-464, 465-467

 Hearing Threshold

 Deaf persons who were not tested and persons who had hearing threshold
 levels of 100 dB or more were coded "99."  Persons who had hearing threshold
 levels of 0 dB or less were coded "00."

 Tape Position 480 - Dummy Record

 The term "Dummy Record" refers to a tape record for a respondent who was
 included in the sample but for whom no Audiometric Air Conduction Test was
 done.  Although demographic data are available for all respondents,
 positions 409-475 are all blank in dummy records, and position 480 contains
 a code of "1" to identify such records.  If position 480 contains the code
 "blank", at least some Audiometric Air Conduction Test data were received
 for that respondent.

REFERENCES

 1.  National Center for Health Statistics:  Replication an Approach to the
     Analysis of Data from Complex Surveys by P.J. McCarthy.  Vital and Health
     Statistics Series 2-No. 14. DHEW Pub. No.(PHS) 79-1269. Public Health
     Service.  Washington, D.C.  U.S. Government Printing Office, 1966.
 2.  Survey Research Center Computer Support Group, OSIRIS IV User's Manual,
     Institute for Social Research, 1979.
 3.  Holt, M.M.: SURREGR: Standard errors of regression coefficients from
     sample survey data. (unpublished) Research Triangle Institute, NC, 1977.
 4.  Hidiruglou, M.A.,Fuller,W.A.,Hickman, R.D.:(SUPERCARP) Survey Section,
     Statistical Laboratory,Iowa State University. Ames, Iowa. Sixth Edition.
     October 1980.
 5.  Woodruff, R.S.: A simple method for approximating the variance of a
     complicated estimate. JASA 66:411-414, 1971.
 6.  National Center for Health Statistics: A General Statistical Methodology
     for the Analysis of Data from a Complex Survey: NHANES I by J.R. Landis,
     J.H. Lepkowski, S.A. Stehouwer, and S.A. Eklund. Vital and Health
     Statistics, Series 2. (In publication)

APPENDIX A - DATA COLLECTION TECHNIQUES AND CONTENT

 The plan developed with respect to the content of NHANES II called for the
 following:
     A.  Questionnaires completed in the household:
         (1)  Household questionnaire:  For each household member, questions
              referred to family relationships;certain demographic items such
              as age, sex, and race; selected housing information;occupation,
              income, education, veteran status; and an indication of
              participation in food stamp programs.
         (2)  Medical history questionnaires:
              (a)  For each sample person ages 6 months-11 years
                   The questionnaire included items on birth weight,
                   prematurity,congenital conditions, medication, neurological
                   conditions, lead poisoning, accidents, hospital care,
                   disability, diarrhea, pica, vision, and a variety of
                   chronic conditions.  In addition, data were collected on
                   allergies, kidney and bladder disease, anemia, speech and
                   hearing, lung and chest conditions, and participation in
                   food programs.
              (b)  For each sample person ages 12-74 years
                   The questionnaire included items on medication; hospital
                   care; tuberculosis; a variety of acute and chronic
                   diseases; tobacco usage, physical activity; weight; height;
                   vision disability, exposure to pesticides; gastrointestinal
                   problems; and for females; a menstrual and pregnancy
                   history.  In addition, data were collected on anemia,
                   diabetes, respiratory condition, hearing and speech, liver
                   and gallbladder conditions, kidney and bladder disease,
                   allergies, hypertension, cardiovascular conditions, stroke,
                   arthritis (stressing middle and upper back and neck
                   problems), and participation in food programs.
         Questionnaires and tests administered in the mobile examination
         center:
         (3)  Dietary Questionnaires
            (a)  For each examined person, a 24-Hour Recall was administered
                 by trained dietary interviewers.  Specific and quantitative
                 detail of every food or drink consumed during the previous
                 day was recorded and calculated, thus providing estimates of
                 calories, protein, carbohydrates, fat, unsaturated fats,
                 cholesterol, and specific vitamins and minerals consumed.
            (b)  For each examined person, a Food Frequency interview was
                 administered to ascertain usual patterns of food consumption.
                 Daily and/or weekly consumption of foods within 26 subgroups
                 were recorded.  In addition, data were collected on usual
                 vitamin-mineral supplement usage.
            (c)  For each person ages 12-74 years, a Dietary Supplement form
                 was self-administered and reviewed.  This form provided
                 information on special diets, recent medications and barriers
                 to purchasing groceries or eating foods; it does not provide
                 information on vitamin/mineral or other supplements to the
                 diet.
         (4)  Medication/Vitamin Usage Form provided information on the past
              week's usage of any medicines; vitamins or minerals for al
              examined persons.
         (5)  Behavior Questionnaire elicited data on behavior which may be
              associated with coronary heart disease for examined persons
              ages 25-74.
              B.  Examination by physician
                  A physician performed and recorded the results of a medical
                  examination giving special attention to specified findings
                  related to nutrition, to hearing, to the thyroid gland,and
                  to the cardiovascular, respiratory, neurological and
                  musculoskeletal systems.
              C.  Special clinical procedures and tests
                  A specially trained health technician carried out the
                  following on examined persons in the designated age ranges:
                1.  Spirometry trials of examined persons ages 6-24 years,
                    were digitized and recorded on magnetic tape.  Various
                    pulmonary function indicators such as FVC (forced vital
                    capacity), FEV1 (forced expiratory volume in one second),
                    and peak flow rate were subsequently derived from these
                    data.
                2.  Electrocardiograms Electrocardiographic signals of
                    examined persons ages 25-74 years were digitized and
                    recorded on magnetic tape providing normative data of
                    amplitude, duration, interval and axis measurements and
                    permitting interpretations of heart disease according to
                    the Minnesota classification code.
                3.  Body Measurements were made on all examinees and included
                    standing height, body weight, triceps and subscapular
                    skinfolds, and several other anthropometric measurements.
                4.  Puretone audiometry Tests were carried out on examined
                    persons between the ages of 4 and 19 years, permitting
                    determination of threshold levels of hearing for
                    frequencies of 500, 1000, 2000, and 4000 Hertz for right
                    and left ears.
                5.  Speech recording, involving use of tape recording of the
                    subject's repetition of specially developed sentences,was
                    carried out on examined persons between the ages of 4 and
                    6 years, permitting interpretations as an indication of
                    problems with articulation and language development.
                6.  Allergy tests, involving skin tests (prick test) with
                    eight common allergens (housedust, alternaria, cat fur,
                    dog fur, ragweed, oak, rye grass, and Bermuda grass).The
                    tests were made on examined persons between the ages of 6
                    and 74 years, to obtain degrees of skin reaction.
              D.  X-Rays
                  For examined persons ages 25-74 years, two x-rays were made.
                  No x-rays were taken of pregnant women and no lumbar x-rays
                  were taken on women under 50 years of age.
                1.  X-ray of cervical and lumbar spine, were taken to provide
                    evidence of osteoarthritis and degenerative disc disease,
                    and
                2.  X-ray of chest, to be used in the diagnosis of respiratory
                    diseases and to serve as a measure of left ventricular
                    enlargement.
             E.  Urine tests
                 Tests as follows were performed on casual samples of urine:
                1.  N-Multistix tests for qualitative protein, glucose,
                    ketones, bilirubin, blood, urobilinogen, pH, and
                    bacteriuria (nitrite test) were done for examined persons
                    ages 6-74 years.
                2.  Urinary sediments, including red cells, white cells, and
                    casts, were measured for a subsample of examined adults
                    ages 20-74 years.
                3.  Gonorrhea cultures, of urinary sediments were performed
                    for male and female examined persons ages 12-40 years.
                    However, of those females who received the Glucose
                    Tolerance Test (GTT) only those ages 20-24 years had the
                    gonorrhea test performed.
                4.  Analyses for pesticide residue and metabolite levels,were
                    carried out on a subsample of examined persons ages 12-74
                    years, including measures of the body burdens from
                    exposure to alkyl phosphate residues and metabolites,
                    carbamate residues, phenolic compound residues and
                    malathion metabolites.
            F.  Tests on blood samples
                Samples of blood provide a broad range of information related
                to health and nutrition.  The particular tests performed
                varied with the specific target condition and age group as
                described in the Series 1, No.15 program description (page
                39).
                1.  Glucose tolerance test (GTT)
                    This test involved collection of blood specimens while in
                    a fasting state, as well as at one and two hours after
                    glucose challenge.  The test was performed on a specified
                    subsample of examined adults to provide estimates of the
                    prevalence of diabetes.
                2.  Tests related to liver function
                    (a)  Post-prandial liver bile acid test.  This test
                         measures the ability of the liver to remove bile
                         acids from the blood following consumption of a food
                         preparation which induces eventual addition of bile
                         acids to the blood via contraction of the
                         gallbladder.
                    (b)  Liver biochemistries performed include bilirubin,
                         SGOT, and alkaline phosphatase tests.
                  3.  Anemia-related laboratory tests
                      The tests made to characterize anemia consisted of
                      protoporphyrin,iron,total iron binding capacity (TIBC),
                      zinc, copper, red cell folates, serum folates, serum
                      ferritin, B12, and the determination of abnormal
                      hemoglobin.
                  4.  Other nutritional biochemistries
                      These tests include albumin,Vitamin A and Vitamin C.
                  5.  Serum lipids
                      Because of their important relevance to cardiovascular
                      disease, determinations were made of cholesterol,
                      triglycerides, and high density lipoprotein (HDL).
                  6.  Biochemistries for body burden from environmental
                      exposures
                      Determinations were made of body burden levels of lead
                      and pesticide residues and metabolites.Tests were also
                      performed for carboxyhemoglobin which reflects
                      environmental exposure to carbon monoxide and the
                      individual's smoking habits.
                  7.  Hematology
                      The hematology included determinations of hemoglobin,
                      hematocrit,red blood cell count,white blood cell count
                      and differential leukocyte analysis, and red blood cell
                      morphology and hemoglobin phenotyping.
                  8.  Kidney function
                      The only quantitative test for kidney function performed
                      on blood samples was the serum creatinine test.
                  9.  Syphilis
                      The serology determinations for syphilis included
                      qualitative and quantitative ART, a FTA-ABS and MHA-TP.

APPENDIX B - AUDIOMETRY SCREENING EXAMINATION PROCEDURES

 Equipment

     Soundproof room.
     Audiometers:  two (2) Beltone, Model 200-C
     Language master:  Bell and Howell, Model 1726
     Tape recorder:  Revox, Model 77A
     Sound level meter:  B&K, Model 2203
     Artificial ear coupler:  B&K, Model 4151
     Condenser microphone:  B&K, Model 4144 (1")
     Octave band filter:  B&K, Model 1613
     Acoustic calibrator:  B&K, Model 4230
     Microphone power supply:  B&K, Model 2810
     Talk back microphone:  B&K, Model 4125 (1/2")
     Accessories:  Microphone adapter ring, 500 gram weight, prerecorded
                   Language Master Cards, blank magnetic tapes
     Forms:  Daily check list, field calibration forms, environmental noise
             survey form.

 Setup

     The setup described in this section applies to that used in the
 examinations and daily checks.  For calibration setups refer to the
 appropriate sections.  Turn all equipment off when not in use.

     1.  Audiometer
         a.  Plug in power cord and press "on" switch to turn on power
             indicator light.
         b.  Place all switches and controls in "off" position.
         c.  Turn speech input control to "tape."
         d.  Turn channel 11 gain control fully counterclockwise.
         e.  Turn VU meter selector switch to "channel 1."
         f.  Turn talk back and talk over control fully counterclockwise.

     2.  Language Master
         a.  Insert plug with two leads into output jack of Language Master.
         b.  Insert phone plug labeled tape input" into the female jack of a
             Y connector.  Insert the two male plugs of the Y into the tape
             jack and external input channel 11 jack located in the rear of
             the audiometer.
         c.  Turn volume control fully clockwise.

     3.  Tape recorder
         a.  Plug in power cord and turn power switch to 7 1/2" speed and
             small reel indicator.  Check to see the pilot light is on and
             that there are three cables connected to the rear panel of
             recorder.
         b.  Turn record function selector to "aux."
         c.  Turn both record level controls fully clockwise.
         d.  Turn channel selector switch to "mono."
         e.  Turn second clear knob (from left) to "NAB" and leave the
             balance control in the center position (pointer straight up).
         f.  Depress channels I and II preselector buttons.

     4.  Sound level meter
         a.  Insert plug labeled "B & K output" into output jack of sound
             level meter.
         b.  Screw plug adapter onto meter and insert plug labeled "Mic.
             Amp." into adapter.
         c.  Attach connector labeled "amp. input" into channel I output of
             microphone power supply.
         d.  Insert cable from 1/2" microphone into channel I input of
             microphone power supply.
         e.  Connect 1/2" microphone to cable.
         f.  Pull up black knob below indicating meter to turn the power on.
             Check to see that the power indicator light is flashing.
         g.  Turn the same black knob to "Batt." position.  If meter pointer
             falls within section marked "battery," the batteries are
             satisfactory for use.  Otherwise, replace batteries per
             instrument instruction manual.

 Daily Field Checks - Audiometer

     Turn power on and switch to manual mode.  Turn tone switch to "on"
 position to turn on the tone indicator light.

     1.  To check tone quality:
         a.  Set hearing level dial at 40 dB.
         b.  Turn channel I output control alternatively to left and right
             phones.
         c.  Turn frequency dial successively from 500 Hz through 4000Hz
             while listening through each earphone in turn for purity of
             tones.
         d.  Check appropriate spaces on the form and note any abnormalities.

     2.  To check the hearing level control:
         a.  Set the Frequency dial on 2000 Hz.
         b.  Turn the hearing level dial slowly from 20 to 60 dB and back to
             zero while listening for scratches, abrupt changes in loudness
             of tone, or for other extraneous signals.
         c.  Check appropriate spaces on the form as each phone is checked
             and note any abnormal conditions in the "Remarks" section.

     3.  To check the wires leading to the earphones:
         a.  While wearing the earphones and with the 1000 Hz tone on at 40
             dB, shake the wire to each earphone gently and listen for
             scratches, interruption of the tone, or any other abnormality.
         b.  If the tone is interrupted or changes loudness, tighten the set
             screws holding the earphone cord in the earphone.  If this
             action does not correct the fault, replace the audiometer.
         c.  It may be necessary to replace an earphone cord from time to
             time.  This can be done by loosening the set screws in the
             earphone, unplugging the old earphone cord, plugging in the new
             cord, and finally tightening up the set screws.

     4.  The attenuator and frequency dials may slip on the shaft.  If this
         happens, report it under "Remarks" and replace the audiometer.

     5.  Send any defective unit to EAR-CO for service.  If neither
         audiometer works properly, contact Mr. Kenneth Stewart for
         instruction.

 Equipment Care

     The only care the Revox recorder and language master equipment needs on
 a regular basis is to keep the tape path clean.  This is very important
 because the machine will perform its best only if all parts of the tape path
 are clean.  A soft cotton or linen cloth is most suitable for cleaning.  If
 necessary the cloth may be moistened with a little alcohol.  Hand
 instruments must not be used for cleaning the tape path under any
 circumstances.  The heads should be cleaned carefully.  The capstan and
 pressure roller should be cleaned with a dry cloth.  The recorder must never
 be oiled.  At the beginning of the stand the Revox recorder and language
 master must be degaussed.

     1.  Procedure for Degaussing.
         a.  Remove all ecorded material from room so as not to destroy or
             damage the recordings.
         b.  Hold the degausser 3 ft. away from the head while energizing it.
         c.  Slowly move the degausser towards the heads.  Move the tip
             around the head, capstan, and other metal parts in the tape path.
         d.  Slowly move the degausser away from the machine until it is 3
             ft. away.  At this point, deenergize.
         e.  WARNING.  Do not leave the degausser energized for more than 4
             minutes.  Otherwise it will overheat and self destruct.
         f.  The degausser doesn't need to touch the head to degauss it.  It
             just has to be close to it.

 Field Calibration

   General
         a.  Field calibration of both audiometers will be performed at the
             start of each stand, weekly during the examination period, and
             at the end of each stand.
         b.  The field calibration report forms give the expected reading at
             each frequency and the tolerance limits allowed around that
             reading.  The expected readings were determined for each set of
             field calibration equipment at EAR-CO's laboratory.  If a
             microphone requires replacement, the calibration equipment is to
             go back to EAR-CO for a determination of new expected readings
             for the new microphone.
         c.  Reports on these field calibrations are to be made in
             duplicate.  One copy is to be mailed that day to Miss Jean
             Roberts and the other to EAR-CO.
         d.  If the calibration shows a unit to exceed the specified limits,
             an independent calibration is to be made by another technician.
             If both technicians then agree that the audiometer is in
             calibration, the unit will be considered for use.  If the
             difficulty cannot be resolved, the unit is to be sent to EAR-CO
             for service.

 Pure Tone Calibration

        a.  To prepare the sound level meter for use:
             (1)  Screw the artificial ear coupler onto the meter case.
             (2)  Unscrew the top half of the coupler.
             (3)  Screw the microphone cartridge (1" diameter) with
                  protective grid onto the bottom half of the coupler.
             (4)  Turn the black knob above the meter to position the number
                  90 opposite the marker on the meter case.  Turn the clear
                  knob to place the red circle over the number 90.
             (5)  Set the functin selector to A-Slow.
             (6)  Remove the 1/2" adapter from the acoustic calibrator and
                  set the calibrator firmly over the microphone.
             (7)  Press the tone actuator (on side of calibrator) once and
                  release.
             (8)  The sound level meter should read 94 dB on the A scale.  If
                  not, use a screw driver (supplied with meter) to turn the
                  adjustment screw to produce the desired reading.  (If the
                  tone has disappeared, press actuator again to bring the
                  tone back on.)  The sound level meter is now in calibration.
         b.  To mount the earphone:
             (1)  Remove the protective grid from the microphone cartridge
                  and screw the adapter ring onto the cartridge.  Take great
                  care not to touch the microphone diaphragm.
             (2)  Screw the top of the coupler back on and remove the
                  capillary pin contained therein.
             (3)  Set the earphone to be tested over the cavity of the
                  coupler, making sure that the earphone rests squarely on
                  the coupler.
             (4)  Place the 500 gram weight on top of the earphone and
                  reinsert the capillary pin.
         c.  Calibration procedure:
             (1)  Turn the black knob on the sound level meter until the
                  number 70 on the dial is opposite the marker on the meter
                  case and keep the red circle over 70.
             (2)  Set the audiometer to a frequency of 500 Hz and 70 dB
                  hearing level.
             (3)  Turn the tone switch to "on."
             (4)  Select the earphone under test.
             (5)  Record the sound level meter reading (A-scale) on the
                  report form.

                  Example:  The meter reading is determined as follows:
                            Red Circle over   70
                            Meter needle at    6.5
                            Meter reading is  76.5 dB

                  Since the expected reading at this frequency is 76.8 dB
                  with a tolerance of +4 dB, the audiometer is within
                  calibration at this frequency.
             (6)  Continue testing at the other three frequencies indicated
                  in the report form.  In each case the report form provides
                  the appropriate settings for the sound level meter.
             (7)  To test the other earphone:
                  Remove the weight and lift the earphone already tested off
                  the coupler.  Remove the capillary pin.  Place the other
                  phone and weight back on and reinsert capillary pin.
                  Repeat steps (2) through (6).

 Masking noise calibration
 
        a.  Set up the field calibration equipment as before.
         b.  Set function selector on the B & K meter to "C-Slow" position.
         c.  Turn the audiometer channel II tone switch to "on" to bring tone
             indicator light on.  Turn the channel I tone switch "off."
         d.  Turn the Freq. and Input dial to "N. B. Noise" and channel I
             frequency selector to 500 Hz.
         e.  Set the masking level knob at 60 dB as indicated on the form.
         f.  Select the earphone under test.
         g.  Set the black knob and red circle on the sound level meter at 80
             and obtain the reading.

             Example:  The actual masking signal level at the selected range
                       of frequencies is determined as follows:
                       Red Circle over          80
                       Meter needle at           2.4
                       Masking signal level is  82.4 dB

             Since the expected reading is 81.7 dB with a tolerance of +4dB,
             the level of the masking noise is within the specifications in
             this frequency range.
         h.  Repeat the procedure with the channel I frequency selector at
             other frequencies and other attenuator settings indicated on the
             form.

 Environmental Noise Survey

     A noise survey is to be done during the setup day before the start of
 each stand of examination.  One copy of the completed form should be sent
 immediately to Miss Roberts and one to EAR-CO.  Adhere to the following
 procedures.

     1.  Screw the 1" microphone (with protective grid in place) directly
         onto the connector on the B and K sound level meter.
     2.  Check the battery condition and calibration per previous
         instructions.
     3.  Set the selector knob to "Ext. Filt. Slow" position.
     4.  Set weighting switch on the octave filter set to "off."
     5.  Close both doors to the audiometer room.
     6.  Turn off all hearing test equipment.
     7.  Set the black knob to 70.
     8.  Rotate the frequency knob to 31.5.
     9.  Adjust the red circle knob to obtain a meter reading which is
         somewhat above 0 dB on the meter scale.  Read the red circle number
         and add to it the meter reading.

             Example:
                      Red Circle on              60 db
                      Meter reading               4 db
                      Environmental noise level  64 db at 31.5 Hz

    10.  Record the reading on the appropriate form.
         NOTE:  The meter reading will fluctuate considerably.  Try to
         estimate an average reading after having observed the meter for a
         moment.
    11.  Turn the frequency knob to 63.
    12.  Turn the red circle knob to obtain a meter reading as in instruction
         9.
    13.  Proceed through each octave band 125 Hz ... 8,000 Hz.
    14.  Under "Comments" explain circumstances, if possible, where the
         environmental noise levels exceed ANSI allowable levels.

 Audiometric Testing Procedures

   General
         At the beginning of each examination session turn on the audiometer
         at least 10 minutes before performing the daily field check.  At the
         completion of testing, perform a second field check.  Both doors to
         the audiometric room should be closed while testing.
         a.  Recording
             Use the left side of form first when the sample number is even
             and the right side first when the sample number is odd.  Enter
             the beginning time, audiometer number, and technician number on
             control record.  Indicate which ear will be tested first by
             circling right ear or left ear on the form.  This will check for
             any bias.
         b.  Audiometric testing
             Perform air condition tests for both ears in the sequence
             indicated on the recording form.  If any part of the test cannot
             be completed, enter "X" in the appropriate space and indicate
             the reason under "Condition Affecting Test Results."  If other
             than physical conditions of the examinee have affected any of
             the audiometric results, explain in the space provided at the
             right of this section.  If any thresholds of 30 dB or greater
             are obtained, be sure to question the examinee about physical
             conditions which might contribute to the results and check the
             appropriate box or boxes under "Condition Affecting Test
             Results."  For a 15 to 19 year old with a 40 dB or greater
             threshold at 4000 Hz in one or both ears, ask if he has listened
             to a large amount of amplified music.  Please note under number
             8 "Other."  If the examinee does not respond to 100 dB at any
             test frequency, record "100+" in the appropriate space.
         c.  Instructions to examinee
             Detailed instructions should be given the examinee to stress the
             following points:
             *  Once the earphones are placed by the technician, they must
             not be touched by the examinee.  The technician should ask if
             they are comfortable and readjust if necessary.
             *Tell the examinee that he will hear tones that are high and low
             and will become softer and softer until he will have difficulty
             hearing them.  When he hears the tones, he should depress the
             response button and release it when the tone is no longer
             heard.  Remind him to concentrate very hard when the tones are
             soft.
             *  Eyeglasses, earrings, chewing gum, wigs, and hair ornaments
             should be removed if they interfere with proper placement of the
             headset.
             (1)  Example of verbal instructions for 7 to 19 year olds.
                  (a)  We are going to see how well you hear some tones from
                       these earphones.
                  (b)  You will hear short tones that are both high and low.
                       They will become softer and softer.
                  (c)  Each time you hear a tone, please press this button
                       (technician demonstrates with response button) and
                       when you no longer hear the tone let the button up.
                  (d)  Listen carefully when the tone starts to get softer
                       but even if you think you hear it, press the button
                       and I will be able to tell if you hear it.
                  (e)  First you will hear the tones in your right/left ear
                       (point) and then in your other ear.
                  (f)  If the tone seems to be in this ear (point to nontest
                       ear), please tell me.
                  (g)  Remember to press the button when you hear a tone and
                       let it up when you no longer hear it.
                  (h)  Do you have any questions?  (If so, clarify as
                       necessary.)
             (2)  Example of verbal instructions for 4 to 6 year olds.
                  (a)  (Bring the child into position to face the
                       audiometer.  With a 50 dB 1000 Hz tone in one phone,
                       hold it to the child's ear.)  We are going to see how
                       well you can hear some tones from these earphones.
                       Listen to this one.
                  (b)  Every time I play a tone, the red light goes on.  Do
                       you see it?  (Demonstrate)
                  (c)  If you listen carefully and hear the tone, you can
                       turn it off by pressing this button and making the
                       white light on on.  (Indicate by depressing response
                       button.)
                  (d)  (Hand the response button to the examinee and present
                       tone, encouraging the child to press the response
                       button.  When he does, release the stimulus tone.
                       Repeat the sequence at least once or until you feel
                       that the child understands his task.  Reinforce the
                       child's performance with a positive comment.)  Good.
                       Now we will play this game while you sit in that
                       chair.  (Indicate the chair and hand the child the
                       response button.)
                  (e)  (Place the headset on child.)  First you will hear the
                       tones in this ear (indicate right or left) and then
                       you will hear them in your other ear.
                  (f)  Are you ready?
             (3)  Examples of verbal instructions when masking of the better
                  ear is required (when the difference between hearing levels
                  of the two ears is 40 dB or greater at any frequency).
                  (a)  Now you will hear the tone in your right/left ear
                       (point).
                  (b)  At the same time you will hear a noise, like wind, in
                       your other ear (point).
                  (c)  The noise is to keep you from hearing the tone in that
                       ear so don't pay any attention to it.
                  (d)  I want you to listen for the tones in your right/left
                       ear (point) and press the button whenever you hear
                       them.
                  (e)  Do you understand?  (If not, clarify as necessary.)
         d.  Conduction of air condition hearing test
             (1)  Take the examinee into the test room and set him opposite
                  the examiner but facing away so that he cannot see the
                  examiner's movements or the equipment being operated.
             (2)  Close the test room doors.
             (3)  Ask the examinee if he has any problems which might affect
                  his hearing -- colds, earache, etc.  Record these under
                  "Condition Affecting Test Results."
             (4)  Repeat the instructions briefly.
             (5)  Make sure the ears are not obstructed with cotton before
                  placing the earphones.
             (6)  Place the earphones on the examinee and make sure the
                  earphone opening is over the ear canal and that it has a
                  good seal against the examinee's ear.  The red earphone is
                  placed on the right ear; blue on the left.  Hair should be
                  pushed away from ears before the headset is placed.
             (7)  Make sure that the audiometer is ready for the test by
                  checking that it is set in the following manner:

                              Air Conduction Setup

 Channel I               Machine dials                        Correct Setting
                         Channel I monitor                    Off unless using
                         Channel I output                       Right/left
                         ON/OFF toggle switch                   ON
                         AUTO/manual toggle switch              Manual
                         Frequency                              1000 Hz.
                         Decibels                               20 dB

                                 Masking Setup

 Channel II              Machine dials                        Correct Setting
                         Channel II output                    Off*
                         Channel II monitor                   Off unless using
                         ON/OFF toggle switch                 Off*
                         AUTO/manual                          Manual
                         Frequency and Input                  N.B. Noise
                         Decibels                             60 dB

 *When masking is required, channel II output should be right/left and the
  on/off toggle switch is "ON."
 NOTE:  Dials SISI and Speech-Input have nothing to do with either Air
        Conduction or Masking testing.

             (8)  The 1000 Hz tone is introduced to the first ear to be
                  tested at a level of 20 dB for about 1 second.  This should
                  be well within the range of audibility for most examinees
                  and will serve as listening practice.
                  If the tone is not heard at 20 dB, increase the level in 10
                  dB steps until he responds to it.
             (9)  When the examinee responds, set the intensity dial 10 dB
                  below the previous stimulus intensity (10 dB) and present
                  the tone for 1 or 2 seconds.
            (10)  The procedure for decreasing the level of the tone in 10 dB
                  steps with at least one presentation per level should be
                  continued until no response is obtained.
            (11)  Then increase the intensity dial 5 dB and present a
                  stimulus.
            (12)  If a response is obtained at this level, the intensity is
                  reduced by 10 dB.  If no response is obtained, increase the
                  intensity 5 dB.  Always descend 10 dB and count the number
                  of responses at the lowest level while ascending in
                  intensity in 5 dB steps.
            (13)  The threshold recorded is the lowest dial reading at which
                  50 percent or more of the responses are obtained to
                  ascending presentations--that is, 2 out of 3 or 3 out of 5
                  trials.  Below this leel, less than 50 percent response is
                  obtained and above this level, 100 percent response is
                  approached.
            (14)  Enter the proper two-digit entry on the test form.  Test
                  the remaining frequencies in the order indicated on the
                  form.
            (15)  Repeat the procedure presenting each successive frequency
                  in the order listed on the examination form to the test ear
                  and then shift to the other ear as indicated on the test
                  form until the pure tone air conduction test has been
                  completed for all frequencies in both ears.
         e.  Masking procedure--(when the difference in thresholds between
             the two ears is 40 dB or greater at the same frequency.)
             At any frequency, when the threshold of one ear is poorer than
             the other ear by 40 dB or more, you must retest the poorer ear
             using a masking noise in the better ear.  When this is
             necessary, use a masking level of 60 dB no matter what the
             difference in thresholds is between the two ears.  Record these
             results in the appropriate spaces on the audiometry form.
         f.  Procedure necessary for threshold accuracy
             (1)  Avoid rhythmic presentation of signals to the examinee.
                  The examinee may respond to the rhythm rather than to the
                  sound.  This is especially true of younger persons.
             (2)  Avoid a long, drawn-out search for a threshold which tends
                  to lessen the interest and cooperation of the person being
                  tested and to produce fatigue.  If necessary, shift to
                  another frequencyand test, then return to the problem
                  frequency later.  Note at the bottom of the form any change
                  in the order of the test on the test form.
             (3)  Avoid giving visual or auditory cues when the tone is
                  presented; for example looking at the person each time a
                  tone is presented, making a click with the interrupter
                  switch, or clicking in the intensity dial.
             (4)  Double check the dial reading.
             (5)  Check whether the interrupter switch was at "off" position.
             (6)  Avoid activity which will distract the examinee.
             (7)  Check the response of the examinee occasionally by leaving
                  the tone off for several seconds and then presenting the
                  tone to see if he is responding consistently.
             (8)  Avoid presentation of the test tone for longer than 3
                  seconds.  This may lead to a false response.
             (9)  Count only the ascending responses in determining the
                  threshold.
            (10)  Avoid being influenced by the threshold obtained for the
                  first cycle tone when obtaining the threshold for the
                  second presentation of this tone.
            (11)  Make sure all forms are complete.  Record the time the test
                  is finished and the technician number on the control
                  record.  When the test is not done or incomplete, record
                  the reason.

                     Field Calibration of Masking Generator

 Date                                                Audiometer No.

                                                     Location

                         Masking Generator Calibration



   Masking
  generator     Masking                        Expected               Actual
   center        level        Setting for       reading   Tolerance  reading
  frequency      knob    Black knob  Red knob  "C" slow      dB     left phone

     500          60         80         80       81.7        +3
    1000          70         80         80       88.7        +3
    2000          70         90         90       94.9        +3
    4000          70         80         80       82.0        +3


 Note:  Each field calibrator (C, D and E) has the same expected readings for
 these masking generator signals.


                                                      Technician


        Date                                          Location


                    ANSI Max allowable
                      sound pressure            Band level dB 0 0002u bar
   Band center       level (dB) for no     Air conditioning   Air Conditioning
  frequency (Hz)   masking at audio zero         OFF                  ON

       31.5                (35)
       63                  (35)
      125                   35
      250                   35
      500                   35
     1000                   35
     2000                   42
     4000                   52
     8000                   62


 Comments:


                                                      Technician



                         Field Calibration of Earphones

                       For audiometer No.     Caravan


        Date                                                Location



                                 "C" Calibrator

 Audiometer                           Expected    ANSI
  70 dB at         Setting for        reading   intensity    Actual reading
 frequency   Black knob  Red Circle   "A" slow  tolerance    Right     Left

    500          70          70         79.4      +3 dB
   1000          70          70         76.8      +3 dB
   2000          80          80         80.7      +3 dB
   4000          80          80         85.9      +3 dB


                                 "D" Calibrator

 Audiometer                           Expected    ANSI
  70 dB at         Setting for        reading   intensity    Actual reading
 frequency   Black knob  Red Circle   "A" slow  tolerance    Right     Left

    500          70          70         79.4      +3 dB
   1000          70          70         76.8      +3 dB
   2000          80          80         80.7      +3 dB
   4000          80          80         85.9      +3 dB


                                 "E" Calibrator

 Audiometer                           Expected    ANSI
  70 dB at         Setting for        reading   intensity    Actual reading
 frequency   Black knob  Red Circle   "A" slow  tolerance    Right     Left

    500          70          70         79.4      +3 dB
   1000          70          70         76.8      +3 dB
   2000          80          80         80.7      +3 dB
   4000          80          80         85.9      +3 dB


                        "F" Masking Generator Calibrator

  Masking
 generator Masking                      Expected             Actual reading
  center    level      Setting for      reading  Tolerance   Right    Left
 frequency  knob   Black knob  Red knob "C" slow     dB      Phone    Phone

    500      60        80         80       81.7      +3
   1000      70        80         80       88.7      +3
   2000      70        90         90       94.9      +3
   4000      70        80         80       82.0      +3


 Note:  Each field calibrator (C, D and E) has the same expected readings for
 these masking generator signals.


                                                      Technician

APPENDIX C - DATA COLLECTION FORM

 Audiometry (Air), Ages 4-19 Years


  Form HRA 12-10                                       Form Approved
   (2-17-70)                                           O.M.B. No. 68-R1902
   DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE    NOTICE - All information
                                                   which would permit identi-
              Public Health Service                fication of the individual
         Health Resources Administration           will be held in strict con-
      National Center For Health Statistics        fidence, will be used only
                 AUDIOMETRY (AIR)                  by persons engaged in and
                   (AGES 4-19)                     for the purposes of the
    HEALTH AND NUTRITION EXAMINATION SURVEY II     survey, and will not be
                                                   disclosed or released to
                                                   others for any purpose.
 a. Deck No.      b. Audio No.                c. Examiner No.      d. Age
         306         101                         102

   START HERE IF SAMPLE NUMBER EVEN     START HERE IF SAMPLE NUMBER ODD
   1. AIR CONDUCTION - RIGHT EAR        2. AIR CONDUCTION - LEFT EAR


   Retest R with  Frequency  Hearing    Retest L with  Frequency  Hearing
   masking on L*    (Hz)     level      masking on R*     (Hz)     Level
       (a)          (b)       (c)           (a)           (b)       (c)

 103                1000     104        105              1000     106

 107                2000     108        109              2000     110

 111                4000     112        113              4000     114

 115                 500     116        117               500     118

 119                1000     120        121              1000     122


    3. CONDITION AFFECTING TEST RESULTS   *Retest poorer ear with A/C masking
                                          on better ear only if differences
       Mark all that apply                in A/C-HL between the two ears is
                                          40 dB or more.
 123  1     None                          **Specify frequencies affected and
      2     Cold or sinustitis now        describe below.
      3     Ear discharge
      4     Ringing or other noises in
            ears
 124  5     Equipment defect**
      6     Cold or sinustitis within
            one week
      7     Earache within week
      8     Other - Describe** below


     Notes                                  


                                                Sample number
                                                       100




This page last reviewed: Thursday, January 28, 2016
This information is provided as technical reference material. Please contact us at cwus@cdc.gov to request a simple text version of this document.
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