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Scientific Data Documentation
Electrocardiograms Data (1971-75)
DSN: CC37.HANES1.EKG ABSTRACT HEALTH AND NUTRITION EXAMINATION SURVEY, 1971-1975 Contents HANES 1971-1975 Description of Survey Target Population Data Collection Use of HANES Data Errors in the Data Sets and Survey Differences Variance Estimation General Notes Demographic Data Demographic Data Summary Record Layout Demographic Data Detailed Notes Demographic Data DESCRIPTION OF SURVEY Description of Survey: A detailed description of the design, content and operation of HANES I is provided in the following reports: Plan and Operation of the Health and Nutrition Examination Survey, DHEW Pub. No. (HSM) 73-1310, Series 1, Nos. 10a and 10b, Public Health Service, Washington, D. C., U. S. Government Printing Office, February 1973. Also provided is a draft report on the augmentation survey of adults describing the relevant field work conducted between July 1974 and October 1975. TARGET POPULATION Target Population: HANES I was conducted on a nationwide probability sample of approximately 32,000 persons, ages 1-74 years, from the civilian, noninstitutionalized population of the coterminous United States, excepting those persons residing on Indian reservations. The survey started in April 1971 and for many survey components was completed in June 1974. The HANES I sample was selected so that certain population groups thought to be at high risk of malnutrition (persons with low incomes, preschool children, women of childbearing age and the elderly) were oversampled at known rates. Adjusted sampling weights were then computed within 60 age, sex and race categories in order to inflate the sample in such a manner as to closely reflect the noninstitutionalized population, ages 1-74 years, of the United States at the midpoint of the survey. Although the main emphasis of HANES I was on nutrition, a subset of those sample persons aged 25-74 received a more detailed health examination which was continued through October 1975. No particular oversampling of subgroups of the population was done in this subsample (e.g., women of childbearing age were not oversampled as they were for the major nutrition component of HANES I). This subsample is also representative of the United States population aged 25-74 during the time of HANES I. After the nutrition survey was completed, the detailed examination given to the 25-74 age group was continued until the total number of examined persons was approximately double the number of examinees who received the detailed examination during the nutrition survey. DATA COLLECTION Data Collection: Information for all examined sample persons in HANES I was obtained by means of a household interview, a general medical history, a 24-hour dietary intake recall interview, a food frequency interview, a food program questionnaire, a general medical examination, dental, dermatological and ophthalmological examinations, anthropometric measurement, hand-wrist x-rays (of those ages 1-17 only) and 24 hematological, blood chemistry, and urological laboratory determinations. In addition to the information received on all examined persons by means of the above questionnaires, procedures and measurements, the following data were gathered on the subsample of adults aged 25-74: a medical history supplement; supplementary questionnaires concerning arthritis, respiratory and cardiovascular conditions (when applicable); a health care needs question- naire; a general well-being questionnaire; an extended medical examination; x-rays of the chest and hip and knee joints; audiometry, electrocardiography; goniometry; spirometry; pulmonary diffusion and tuberculin tests; along with additional laboratory determinations. USE OF HANES DATA With the goal of mutual benefit, NCHS requests the cooperation of recipients of data tapes in certain actions related to their use: A. Any published material derived from the data should acknowledge the National Center for Health Statistics as the original source. It should also include a disclaimer which credits any analyses, interpretations, or conclusions reached to the author (recipient of the tape) and not to NCHS, which is responsible only for the initial data. B. Consumers who wish to publish a technical description of the data will make a reasonable effort to insure that the description is not inconsistent with that published by NCHS. This does not mean, however that NCHS will review such descriptions. ERRORS IN THE DATA SETS AND SURVEY DIFFERENCES The data users' tapes have been subjected to a great deal of careful editing. However, due to the large volume of data in the series, it is likely that a small number of errors or discrepancies remain undetected. We would appre- ciate if any such errors are detected that they be brought to our attention so that new corrected copies of the tape can be created and errata sheets issued to previous purchasers. Some of the continuous data items have extremely high or low values and we have verified that they do in fact appear that way on the hard documents; that is, we have verified that the values have not been incorrectly keyed. In general, we have not attempted to resolve any differences that may exist between estimates derived from the various subsamples of HANES I. Nor have we made any comparisons between estimates from HANES I and previous surveys conducted by the Division of Health Examination Statistics. VARIANCE ESTIMATION Because the Health and Nutrition Examination Survey is based upon a complex sample design, the assumptions of many statistical tests and routinely avail- able statistical programs are not met. For this reason, when estimates of the variances of statistics from HANES are computed, the technique of estimation must be based upon complex sampling theory. In order to provide the user with the capability of estimating the complex sample variances, we have provided Strata and Primary Sampling Unit (PSU) codes on the HANES user tapes in tape positions 194-198. However, these codes are suitable for making variance estimates only for examination locations 1-65 and 1-100. To compute variance estimates for examination locations 1-35 or 66-100, it is necessary to recode the current Strata-PSU codes according to the specifications that follow. The resultant recoded Strata-PSU codes should be used only for locations 1-35 and 66-100. One computer program that should be widely available sometime around the summer of 1978 as part of the Statistical Analysis System (available from the SAS Institute, Inc., Post Office Box 10066, Raleigh, North Carolina 27605) is capable of using the Strata-PSU codes provided for HANES to compute complex sample variances. Other programs may also be available. In those Strata, referred to as certainty or self-representing Strata, the PSU codes are actually the segment numbers. Neither the Strata codes nor the PSU codes are the original codes used in the formation of the HANES sample design, but are nonetheless a unique Recoding of the original codes. For further discussion of the sample design of HANES, the user should consult the publications of the National Center for Health Statistics--Series-Nos. 10a and 14 and the detailed note for tape positions 158-193. Recode Specifications for Strata-PSU Codes First.--Create a files with only those records in the file for examination locations 1-35.* Second.--Retain 1he original Strata-PSU codes in Strata 7-10 and 13 in the original form as the recoded Strata-PSU codes. Third.--Recode the remaining strata according tot he chart below. Fourth.--Repeat the process for examination locations 66-100.* Old Strata # (tape positions 194-195) New Strata # New PSU 01 01 001 02 01 002 03 03 001 06 03 002 04 04 001 05 04 002 11 11 001 12 11 002 14 14 001 21 14 002 15 15 001 16 15 002 17 17 001 20 17 002 18 18 001 19 18 002 22 22 001 25 22 002 23 23 001 24 23 002 26 26 001 27 26 002 28 28 001 29 28 002 30 30 001 35 30 002 31 31 001 32 31 002 33 33 001 34 33 002 *See detailed note for tape positions 158-193. GENERAL NOTES, DEMOGRAPHIC DATA, HANES I 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 sample area. 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 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. Asterisks on the Tape Description: Some of the data items were obtained only for a particular subsample of HANES. Consequently some of these items appear to have a great deal of missing data (coded as blank) due to nonresponse, but in fact the data are missing because the design of HANES dictated that the item was to be obtained only for a particular subsample. (For further discussion of the various subsamples in HANES the user should see the detailed note for tape positions 158-193.) To alert the user to this fact asterisks were put on the tape des- cription. One asterisk denotes that the data item was obtained only on examinees at locations 1-65, two asterisks denote that it was ob- tained only at location 66-100 and three asterisks denote that it was obtained only on examinees receiving the detailed examination. DEMOGRAPHIC DATA SUMMARY - HANES I Tape Positions Sample sequence number ............................................. 1 Size of place ...................................................... 10 SMSA-not SMSA ...................................................... 11 Type of living quarters............................................. 12 Land usage ......................................................... 13 If rural, asked - How many acres of land are included .............. 14 If 10 acres/more asked - Sale of crops/etc. amount to $50 or more .. 15 If 10 acres/less asked - Sale of crops/etc. amount to $250 or more . 16 Age - head of household ............................................ 17 Sex - head of household ............................................ 19 Highest grade attended - head of household ......................... 20 Race - head of household ........................................... 22 Total number of persons in household ............................... 23 Total sample persons in household .................................. 25 Number of rooms in house ........................................... 27 Is there piped water ............................................... 28 If yes, is there hot and cold piped water .......................... 29 If yes to piped water - Does house have a sink with piped water .... 30 Does house have a range or cook stove .............................. 31 Does house have a refrigerator ..................................... 32 Are kitchen facilities used by anyone not living in household ...... 33 Total family income group .......................................... 34 NOTE: The following income questions were asked only if "Total Family Income" was less than $7,000 Tape Positions During Past Year Did you or Any Members of Your Family Receive Money From: Wages or salaries .................................................. 36 If yes - How much altogether before deductions ..................... 37 Social Security or Railroad Retirement ............................. 41 If yes - How much altogether ....................................... 42 Welfare payments or other public assistance ........................ 46 If yes - How much altogether ....................................... 47 Unemployment or Workman's Compensation ............................. 51 If yes - How much altogether ....................................... 52 Government employee pensions or private pensions ................... 56 If yes - How much altogether ....................................... 57 Dividends, interest or rent ........................................ 61 If yes - How much altogether ....................................... 62 Net income from own non-farm business, professional practice or partnership ...................................................... 66 If yes - How much altogether ....................................... 67 Net income from a farm ............................................. 71 If yes - How much altogether ....................................... 72 Veteran's payments ................................................. 76 If yes - How much altogether ....................................... 77 Alimony, child support or contributions from persons not living in household ........................................................ 81 If yes - How much altogether ....................................... 82 Any other income ................................................... 86 If yes - How much altogether ...................................... 87 Total amount....................................................... 91 Family unit code ................................................... 95 Relationship to head of household .................................. 100 Age at interview ................................................... 101 Race of examined person ............................................ 103 Sex of examined person ............................................. 104 Marital status ..................................................... 105 Date of birth (month and year) ..................................... 106 Place of birth ..................................................... 110 Highest grade of regular school ever attended ...................... 112 Did he finish the grade ............................................ 114 Is he attending school now ......................................... 115 Has he ever attended a school of any kind .......................... 116 If yes - What kind of school ....................................... 117 Any language other than English frequently spoken in the household.. 118 If yes - What language ............................................. 119 What is your main ancestry or national origin ...................... 120 What was he doing most of past three months ........................ 122 If "something else" - What was he doing ............................ 123 If "keeping house" or "something else" - Did he work at a job or business at any time during the past three months ................ 124 If "working" - Did he work full-time or part-time .................. 125 Did he work at any time last week or week before (not around house). 126 If no - Even though he did not work during that time, does he have a job or business ................................................ 127 Tape Positions Was he looking for work or on lay-off from a job ................... 128 If yes - Which ..................................................... 129 Class of worker .................................................... 130 If self-employed in "own" business and not a farm, is the business incorporated ..................................................... 131 Business or industry code .......................................... 132 Occupation code .................................................... 135 Date of examination ................................................ 138 Age at examination ................................................. 144 Farm/non-farm ...................................................... 146 Poverty index ...................................................... 147 Region ............................................................. 150 FOOD PROGRAMS APPLICABILITY ........................................ 151 Are you certified to participate in the food stamp program? ........ 152 Are you buying food stamps now? .................................... 153 What is the main reason you aren't participating in the program? ... 154 Are you certified to participate in commodity distribution program?. 155 Are you receiving commodity foods now for your family? ............. 156 Why aren't you participating in the program? ....................... 157 SAMPLE WEIGHTS ..................................................... 158 STRATA - Primary Sampling Unit (PSU) ............................... 194 RECORD LAYOUT, DEMOGRAPHIC DATA HEALTH AND NUTRITION EXAMINATION SURVEY (HANES I) Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source DEMOGRAPHIC DATA 1-5 Sample Sequence Number 6-9 Catalog Number 10 Size of Place Urbanized area with: 1 - 3,000,000 or more Hshld Questionnaire 2 - 1,000,000 to 2,999,999 See Detailed Notes 3 - 250,000 to 999,999 4 - under 250,000 5 - Urban place 25,000 or more outside urbanized area 6 - Urban place 10,000 to 24,999 outside urbanized area 7 - Urban place 2,500 to 9,999 outside urbanized area 8 - Rural 11 SMSA - Not SMSA 1 - In SMSA, in central city Hsehld Questionnaire 2 - In SMSA, not in central city See Detailed Notes 3 - Not in SMSA 12 Type of Living Quarters 1 - Housing Unit Hsehld Questionnaire 2 - Other unit 13 Land Usage 1 - All other Hsehld Questionnaire 2 - Rural 7136 14 If Rural, asked How Many Acres of Land Are Included? Hsehld Questionnaire 1 - 10 or more acres 2 - Less than 10 acres 9 - Not applicable Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 15 If 10 acres or more, asked if Sale of Crops, Etc. Amount to $50 or more? Hsehld Questionnaire 2 - Yes 4 - No 9 - Not applicable 16 If 10 acres or less, asked if Sale of Crops, Etc. Amount to $250 or more? Hsehld Questionnaire 3 - Yes 5 - No 9 - Not applicable 17-18 Age - Head of Hsehld 16-92 as given Hsehld Questionnaire 00 Blank, but applicable 19 Sex - Head of Hsehld Hsehld Questionnaire 1 - Male 2 - Female 20-21 Highest Grade Attended - Head of Hsehld 10 - None Hsehld Questionnaire 21 - 1st grade 22 - 2nd grade 23 - 3rd grade 24 - 4th grade 25 - 5th grade 26 - 6th grade 27 - 7th grade 28 - 8th grade 31 - 9th grade 32 - 10th grade 33 - 11th grade 34 - 12th grade 41 - First year of college 42 - Second year of college 43 - Third year of college 44 - Fourth year of college 45 - Graduate 88 - Blank, but applicable Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 22 Race - Head of Household 1 - White Hsehld Questionnaire 2 - Negro See Detailed Notes 3 - Other 23-24 Total Number of Persons in Household 01-19 - As given Hsehld Questionnaire 25-26 Total Sample Persons in Household 01-07 - As given Hsehld Questionnaire 27 Number of Rooms in House 1-8 - As given Hsehld Questionnaire 9 - 9 or more 28 Is there piped water? 1 - Yes Hsehld Questionnaire 2 - No 29 If yes Is there Hot and Cold piped water? 1 - Yes Hsehld Questionnaire 2 - No 9 - Not applicable 30 If yes to piped water - Does House Have a Sink with Piped Water? 1 - Yes Hsehld Questionnaire 2 - No 9 - Not applicable 31 Does House Have a Range or Cook Stove? 1 - Yes Hsehld Questionnaire 2 - No Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 32 Does House have a Regrigerator? 1 - Yes Hsehld Questionnaire 2 - No 33 Are kitchen facilities used by anyone not living in household? 1 - Yes Hsehld Questionnaire 2 - No 9 - Not applicable 34-35 Total Family Income Group 11 - Under $1,000(including loss) Hsehld Questionnaire 12 - $1,000-1,999 See Detailed Notes 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 NOTE: The following income questions were asked only if "Total Family Income" was less than $7,000 DURING PAST YEAR DID YOU OR ANY MEMBERS OF YOUR FAMILY RECEIVE MONEY FROM: 36 Wages or Salaries? 1 - Yes Hsehld Questionnaire 2 - No 3 - Blank, but applicable 9 - Not applicable Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 37-40 If yes to above, how much altogether before deductions? 0001-8000 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 41 Social Security or Railroad Retirement? 1 - Yes Hsehld Questionnaire 2 - No 3 - Blank, but applicable 9 - Not applicable 42-45 If yes to above, how much altogether? 0001-6999 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 46 Welfare Payments or Other Public Assistance? 1 - Yes Hsehld Questionnaire 2 - No 3 - Blank, but applicable 9 - Not applicable 47-50 If yes to above, hyow much altogether? 0001-6999 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 51 Unemployment or Workmen's Compensation? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 52-55 If yes to above, how much altogether? 0001-6999 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 56 Government Employee Pensions or Private Pensions? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable 57-60 If yes to above, how much altogether? 0001-6999 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 61 Dividends, interest or rent? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable 62-65 If yes to above, how much altogether? 0001-6999 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 66 Net income from own non-farm business, professional practice or partnership? 1 - Yes Hsehld Questionnaire 2 - No 3 - Loss 8 - Blank, but applicable 9 - Not applicable Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 67-70 If yes to above, how much altogether? 0000-7500 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 71 Net income from a farm? 1 - Yes Hsehld Questionnaire 2 - No 3 - Loss 8 - Blank, but applicable 9 - Not applicable 72-75 If yes to above, how much altogether? 0000-7500 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 76 Veteran's Payments? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable 77-80 If yes to above, how much altogether? 0001-6999 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 81 Alimony, child support or contributions from persons not living in Hsehld? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 82-85 If yes to above, how much altogether? 0001-6999 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 86 Any other income? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable 87-90 If yes to above, how much altogether? 0001-6900 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 91-94 Total Amount (Total of Positions 37-90) 0000-6999 - As given Hsehld Questionnaire 8888 - Blank, but applicable 9999 - Not applicable 95-99 FAMILY UNIT CODE Computer generated 00001-23180 See Detailed Notes 100 Relationship to Head of Household (Hsehld Questionnaire) 1 - Head (1 person living along or with non-relatives) 1920 2 - Head (2 or more related persons in family) 4912 3 - Wife 5256 4 - Child 7733 5 - Other relative 928 101-2 Age at Interview 01-74 - As given Hsehld Questionnaire Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 103 Race of Examined Person 1 - White Hsehld Questionnaire 2 - Negro See Detailed Notes 3 - Other 104 Sex of Examined Person 1 - Male Hsehld Questionnaire 2 - Female 105 Marital Status 1 - Under 17 Hsehld Questionnaire 2 - Married 3 - Widowed 4 - Never Married 5 - Divorced 6 - Separated 8 - Blank, but applicable 106-9 Date of Birth (month, year) 01-12 - Month as given Hsehld Questionnaire 00-99 - Year (1896-1973) as given 110-11 Place of Birth (As given) 01-02 Hsehld Questionnaire 04-06 See Detailed Notes 08-13 15-42 44-51 53-56 60-81 91-97 88 - Blank, but applicable 144 Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 112-13 Highest Grade of regular school ever attended? 10 - None Hsehld Questionnaire 21 - 1st grade 22 - 2nd grade 23 - 3rd grade 24 - 4th grade 25 - 5th grade 26 - 6th grade 27 - 7th grade 28 - 8th grade 31 - 9th grade 32 - 10th grade 33 - 11th grade 34 - 12th grade 41 - First year of college 42 - Second year of college 43 - Third year of college 44 - Fourth year of college 45 - Graduate 77 - Special school 88 - Blank, but applicable 99 - Not applicable 114 Did he finish the grade? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable 115 Is he attending school now? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 116 Has he ever attended a school of any kind? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable 117 If yes, what kind of school? 1 - Nursery Hsehld Questionnaire 2 - Kindergarten 3 - Other 4 - Headstart 5 - Daycare 8 - Blank, but applicable 9 - Not applicable 118 Is any language other than English frequently spoken in the household? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 119 If yes, what language? 0 - German Hsehld Questionnaire 1 - Italian 2 - French 3 - Polish 4 - Russian 5 - Spanish 6 - Chinese 7 - Other language 8 - Blank, but applicable 9 - Not applicable Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 120-21 What is your main ancestry or national origin? 00 - German Hsehld Questionnaire 01 - Irish 02 - Italian 03 - French 04 - Polish 05 - Russian 06 - English 07 - Spanish 08 - Mexican 09 - Chinese 10 - Japanese 11 - American Indian 12 - Negro 13 - Jewish 14 - American 15 - Other 88 - Blank, but applicable 99 - Don't know 122 What was he doing most of past three months? 1 - Working Hsehld Questionnaire 2 - Keeping house 3 - Something else 8 - Blank, but applicable 9 - Not applicable 123 If "something else" from above, what was he doing? 0 - Laid off Hsehld Questionnaire 1 - Retired 2 - Student 3 - Other 4 - Ill 5 - Staying home 6 - Looking for work 7 - Unable to work 8 - Blank, but applicable 9 - Not applicable Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 124 If "keeping house" or "something else" from above, did he work at a job or business at any time during the past three months? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable 125 If "Working" from above, did he work full-time or part-time? 1 - Full-time Hsehld Questionnaire 2 - Part-time 8 - Blank, but applicable 9 - Not applicable 126 Did he work at any time last week or the week before (not around house)? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable 127 If "no" to above, even though he did not work during that time, does he have a job or business? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable 128 If "no" in Position 126, was he looking for work or on lay-off from a job? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 129 If yes to above - which? 1 - Looking Hsehld Questionnaire 2 - Lay-off 3 - Both 8 - Blank, but applicable 9 - Not applicable 130 Class of Worker 1 - Private paid Hsehld Questionnaire 2 - Government-Federal 3 - Government-Other 4 - Own 5 - Non-paid 6 - Never worked 8 - Blank, but applicable 9 - Not applicable 131 If self-employed in "own" business and not a farm, is the business incorporated? 1 - Yes Hsehld Questionnaire 2 - No 8 - Blank, but applicable 9 - Not applicable 132-34 Business or Industry Code 017-999 - As given Hsehld Questionnaire 135-37 Occupation Code 001-995 - As given Hsehld Questionnaire 138-43 Date of Examination Month - 01-12 as given Control Record Day - 01-31 as given Year - 71-75 as given Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 144-45 Age at Examination 01-75 - As given Computer Generated 146 Farm 1 - Farm Computer Generated 2 - Nonfarm See Detailed Notes 147-49 Poverty Index (X.XX) 001-997 - As given Computer Generated 998 - Index computed 998 See Detailed Notes or greater 999 - Unknown 150 Region 1 - Northeast Computer Generated 2 - Midwest See Detailed Notes 3 - South 4 - West 151 FOOD PROGRAMS APPLICABILITY 1 - Not applicable Food Programs Quest. 2 - No program available 3 - Food stamps available 4 - Commodities available 8 - Blank, but applicable 152 Are you certified to participate in the food stamp program? 1 - Yes Food Programs Quest. 2 - No 9 - Don't know Blank Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source 153 Are you buying stamps now? 1 - Yes, regularly Food Programs Quest. 2 - Yes, occasionally 3 - No 8 - Blank, but applicable Blank 154 What is the main reason you aren't participating in the program? 1 - No need Food Programs Quest. 2 - Not enough money at the time 3 - No transportation 4 - Pride 5 - Other 8 - Blank, but applicable Blank 155 Are you certified to participate in the commodity distribution program? 1 - Yes Food Programs Quest. 2 - No 9 - Don't know Blank 156 Are you receiving commodity foods now for your family? 1 - Yes, regularly Food Programs Quest. 2 - Yes, occasionally 3 - No 8 - Blank, but applicable Blank 157 Why aren't you participating in the program? 1 - No need Food Porgrams Quest. 2 - No transportation 3 - Pride 4 - Other 8 - Blank, but applicable Blank Tape Control HANES I Data Loc. ITEM DESCRIPTION & CODES Counts Source SAMPLE WEIGHTS 158-63 Detailed Persons, Location 01-35 See Detailed Notes Blanks 164-69 All Sample Persons, Locations 01-35 See Detailed Notes Blanks 170-75 Detailed Persons, Locations 01-65 See Detailed Notes Blanks 176-81 All Sample Persons, Locations 01-65 See Detailed Notes Blanks 182- Work Area 193 194- STRATA 1/ 195 196- Primary Sampling Unit1/ 198 199- Work Area 200 1/Use only for producing variance estimates for examination locations 1-65 or 1-100. See General Note titled "Variance Estimation" for producing variance estimates for examination locations 1-35 or 66-100. DETAILED NOTES, DEMOGRAPHIC DATA Tape Position 10 - Size of Place Size of place classification was derived from the 1960 census. According to the definition used in the 1960 census, the urban population was comprised of all persons living in (a) places of 2,500 inhabitants or more incorporated as cities, boroughs, villages and towns (except towns in New York, New England, and Wisconsin); (b) the densely settled urban fringe, whether incorporated or unincorporated, or urbanized areas; (c) towns in New England and townships in New Jersey and Pennsylvania which contained no incorporated municipalities as subdivisions and had either 2,500 inhabitants or more, or a population of 2,500 to 25,000 and a density of 1,500 persons or more per square mile; (d) counties in states other than the New England states, New Jersey, and Pennsylvania, that had no incorporated municipalities within their boundaries and had a density of 1,500 persons per square mile; and (e) unincorporated places of 2,500 inhabitants or more not included in any urban fringe. 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 11 - SMSA 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 1960 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. Tape Positions 22 and 103 - Race The race of the respondent was marked by observation and it was assumed the race of all related persons was the same as the respondent unless otherwise learned. The race categories were "White", "Negro", or "other." If the appropriate category could not be marked by observation, then race was asked. Persons of races other than White or Negro, such as Japanese, Chinese, American Indian, Korean, Hindu, Eskimo, etc. were reported as "Other." Mexicans were included with "White" unless definitely known to be American Indian or of other nonwhite race. Tape Positions 34-35 - Total Family Income Group The income group represents the total combined family income for the past twelve (12) months. It includes income from all sources such as wages, salaries, social security or retirement benefits, help from relatives, rent from property and so forth. The income groups were not reconciled to the component parts (tape positions 36-94). The income component parts were not asked when the gross income was greater than $6,999 per annum. However, amounts greater than $6,999 appear in tape positions 37-40, 67-70, and 72-75. Some respondents reported a loss of income from their nonfarm business, professional practice, partnership or farm and this explains why some data fields are greater than $6,999, but the individual total in tape positions 91-94 does not exceed this figure. Tape Positions 95-99 - Family Unit Code All related sample persons in the same family unit have the same computer generated family unit code. This will enable detailed analysis of the individual family unit. Tape Positions 110-111 - State Codes UNITED STATES OUTLYING AREAS OF THE U.S. Standard Abbreviation Code Name of Place Cod ALABAMA Ala. 01 American Samoa 60 ALASKA Alaska 02 Canal Zone 61 ARIZONA Ariz. 04 Canton and Enderbury Islands 62 ARKANSAS Ark. 05 Caroline Islands 63 CALIFORNIA Calif. 06 Cook Islands 64 COLORADO Colo. 08 Gilbert and Ellice Islands 65 CONNECTICUT Conn. 09 Guam 66 DELAWARE Del. 10 Johnston Atoll 67 DIST. OF COLUMBIA D.C. 11 Line Islands - Southern 68 FLORIDA Fla. 12 Mariana Islands 69 GEORGIA Ga. 13 Marchall Islands 70 HAWAII Hawaii 15 Midway Islands 71 IDAHO Idaho 16 Puerto Rico 72 ILLINOIS Ill. 17 Ryukyn Islands - Southern 73 INDIANA Ind. 18 Swan Islands 74 IOWA Iowa 19 Tokelau Islands 75 KANSAS Kans. 20 U.S. Misc. Caribbean 76 KENTUCKY Ky. 21 U.S. Misc. Pacific Islands 77 LOUISIANA La. 22 Virgin Islands 78 MAINE Maine 23 Wake Islands 79 MARYLAND Md. 24 Cuba 80 MASSACHUSETTS Mass. 25 West Indies 81 MICHIGAN Mich. 26 North America 91 MINNESOTA Minn. 27 South America 92 MISSISSIPPI Miss. 28 Europe 93 MISSOURI Mo. 29 Africa 94 MONTANA Mont. 30 Asia 95 NEBRASKA Nebr. 31 Australasia 96 NEVADA Nev. 32 Pacific Islands 97 NEW HAMPSHIRE Nebr. 33 NEW JERSEY N.J. 34 NEW MEXICO N. Mex. 35 NEW YORK N.Y 36 NORTH CAROLINA N.C. 37 NORTH DAKOTA N. Dak. 38 OHIO Ohio 39 OKLAHOMA Okla. 40 OREGON Oreg. 41 PENNSYLVANIA Pa. 42 RHODE ISLANDS R.I. 44 SOUTH CAROLINA S.C. 45 SOUTH DAKOTA S. Dak. 46 UNITED STATES Standard Abbreviation Code TENNESSEE Tenn. 47 TEXAS Tex. 48 UTAH Utah 49 VERMONT Vt. 50 VIRGINIA Va. 51 WASHINGTON Wash. 53 WEST VIRGINIA W. Va. 54 WISCONSIN Wis. 55 WYOMING Wyo. 56 Tape Positions 132-134 and 135-137 - 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 spen 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 Occupations 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 Position 146 - Land Land used for farming purposes (Code 1 in Tape Position 146) was identified as being rural land (Code 2 in Tape Position 13) consisting of 10 or more acres (Code 1 in Tape Position 14) with crop sales amounting to $50 or more (Code 2 in Tape Position 15), or rural land (Code 2 in Tape Position 13) consisting of less than 10 acres (Code 2 in Tape Position 14) with crop sales amounting to $250 or more (Code 3 in Tape Position 16). All Other land is classified as nonfarm (Code 2 in Tape Position 146). Tape Positions 147-149 - Poverty Index Poverty Index--Income status was determined by the Poverty Income Ratio (PIR). Poverty statistics published in the Census Bureau reports1/ were based on the poverty index developed by the Social Security Administration in 1964. (For a detailed discussion of the SSA poverty standards, see reference 2.) Modifications in the definition of poverty were adopted in 1969.3/ The standard data series in poverty for statistical use by all executive departments and establishments has been established.4/ The two components of the PIR are the total income of the household (numerator) 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 table, 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 twic 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 local variation in the cost of living (except for the farm, nonfarm difference). None of the noncash public welfare benefits such as food stamp bonuses or free food commodities are included in the income of the low income families receiving these benefits. 1/ Current Populatrion Reports, "Consumer Income," Series P-60, No. 77, May 7, 1971 2/ 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. 3/ Current Population Reports, "Special Studies," Series P-23, No. 28, August 12, 1969 4/ Circular No. A-46, Transmitted Memorandum No. 9, Executive Office of the President, Bureau of the Budget, August 29, 1969, and Exhibit L (rev.) Weighted average thresholds at the low income level in 1971 by size of family and sex of head, by farm-nonfarm residence Nonfarm Farm Size of family Total Total Male1 Female1 Total Male1 Female1 head head head head All unrelated individuals- $2,033 $2,040 $2,136 $1,978 $1,727 $1,783 $1,669 Under 65 years--------- 2,093 3,098 2,181 2,017 1,805 1,853 1,715 65 years and over------ 1,931 1,940 1,959 1,934 1,652 1,666 1,643 All families-------------- 3,700 3,724 3,764 3,428 3,235 3,242 3,079 2 persons-------------- 2,612 2,633 2,641 2,581 2,219 2,224 2,130 Head under 65 years---- 2,699 2,716 2,731 2,635 2,317 2,322 2,195 Head 65 years and over- 2,424 2,448 2,450 2,437 2,082 2,081 2,089 3 persons-------------- 3,207 3,229 3,248 3,127 2,745 2,749 2,627 4 persons-------------- 4,113 4,137 4,139 4,116 3,527 3,528 3,513 5 persons-------------- 4,845 4,880 4,884 4,837 4,159 4,159 4,148 6 persons-------------- 5,441 5,489 5,492 5,460 4,688 4,689 4,656 7 persons or more------ 6,678 6,751 6,771 6,583 5,736 5,749 5,516 1For unrelated individuals, sex of the individual. SOURCE: U.S. Department of Commerce, Social and Economic Statistics Administration, U.S. Bureau of the Census "Characteristics of the Low Income Population: 1971," Current Population Reports, Series P-60, No. 86, p. 18. Tape Position 150 - Region The United States was divided into four broad geographic regions of approximately equal population. These regions, which deviate somewhat from the groups used by the Bureau of the 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, and Wyoming. Tape Positions 158-193 - HANES HANES is a multistage, stratified, probability sample of loose clusters of persons in land-based segments. In addition, HANES is composed of two distinct examination components--a nutrition screening examination (taken by all examinees) and a more detailed examination taken by a pre-selected subsample of all examinees, ages 25-74. For the nutrition screening examination, locations 1-35 and 1-65 constituted national probability samples and for the detailed examination, locations 1-35, 1-65, 66-100 and 1-100 all constitute national probability samples. In other words, HANES is composed of six distinct subsamples of the U.S. population. For a more detailed discussion of the sample design see Series 1, No. 10a. Since each of these six subsamples is a distinct subsample of the U.S. population, such subsample requires a different set of weights. The weights are based upon the probability of selection into the sample, adjustments for nonresponse and further adjustments to approximate the U.S. noninstitu- tionalized population as of the midpoint of each subsample. In order to select all of those examinees in a particular subsample, i.e. received a particular exam component, it is necessary to exclude all examinees with a weight of zero or blank. It is also necessary to exclude all zero or blank weights because that is the only way to differentiate missing data due to nonresponse from data that is missing because the sample design dictated that a particular examinee was not supposed to receive particular examination component. It is suggested that any analyses that are desired by the researcher be per- formed using the greatest number of examinees possible; that is, if the researcher is interested in an exam component of the nutrition screening examination he should use the weight and consequently the data from the 65 location subsample rather than the 35 location subsample. For the detailed examination, the researcher should use the 100 location subsample rather than one of the others. However, some exam components were only done in a particular subsample; for example, only at the first 35 locations. In that case, the researcher has no choice in selecting a particular subsample. There may be occasions when a researcher may want to make comparisons of estimates obtained from various subsamples. For example, the prevalence of some disease condition as estimated from the first 35 locations could be compared with an estimate based upon locations 66-100. The researcher may also want to formulate hypotheses using 1 subsample and test those hypotheses using another subsample. ELECTROCARDIOGRAM DATA SUMMARY - HANES I COMPUTER MEASUREMENTS AND INTERPRETATIONS OF ELECTROCARDIOGRAMS DATA TAPE SUMMARY--HANES I Tape Positions Catalog Number--4140 ................................................... 201 Matrix P-Wave Amplitude ....................................................... 214 P-Wave Duration ........................................................ 262 Q-Wave Amplitude ....................................................... 310 Q-Wave Duration ........................................................ 358 R-Wave Amplitude ....................................................... 406 R-P Amplitude .......................................................... 454 R-Wave Duration ........................................................ 502 R-P Duration ........................................................... 550 S-Wave Amplitude ....................................................... 598 S-Wave Duration ........................................................ 646 T-Wave Amplitude ....................................................... 694 T-Wave Amplitude ....................................................... 742 T-Wave Duration (measured from peak of T-Wave) ......................... 790 T-P Duration ........................................................... 838 Q-S Amplitude .......................................................... 886 Q-S Duration ........................................................... 934 P-R Wave Duration ...................................................... 982 ST-1 (.08 seconds after QRS) ...........................................1030 ST-2 (.12 seconds after QRS) ...........................................1078 ST-3 (.16 seconds after QRS) ...........................................1126 ST-4 (ST-2 - ST-1)/(ST-3 - ST-2) .......................................1174 QT (time from onset of QRS to end of T-Wave) ...........................1222 Heart Rate .............................................................1270 Sequence Number of Complex Measured ....................................1318 Lead Code ..............................................................1366 Tape Positions Axes P-Wave ................................................................ 1426 QRS ................................................................... 1430 T-Wave ................................................................ 1434 Mean Rate ............................................................. 1442 Noise Level........................................................... 1445 Calibration........................................................... 1448 Interpretation Code Number 1 .......................................... 1451 Interpretation Code Number 2 .......................................... 1455 Interpretation Code Number 3 .......................................... 1459 Interpretation Code Number 4 .......................................... 1463 Interpretation Code Number 5 .......................................... 1467 Interpretation Code Number 6 .......................................... 1471 Interpretation Code Number 7 .......................................... 1475 Interpretation Code Number 8 .......................................... 1479 Interpretation Code Number 9 .......................................... 1483 RECORD LAYOUT, ELECTROCARDIOGRAM DATA HEALTH AND NUTRITION EXAMINATION SURVEY (HANES I) COMPUTER MEASUREMENTS AND INTERPRETATIONS OF ELECTROCARDIOGRAMS Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source Computer Measurements and Interpreta- See Detailed Notes tions of Electrocardiograms 201- Catalog Number 4140 6913 204 205- Work Area 6913 213 Blank MATRIX OF VALUES 214- P-Wave Amplitude 261 Lead I II III aVR aVL aVF 214- > 218- > 222- > 226- > 230- > 234- 217 > 221 > 225 > 229 > 233 > 237 > > > > > V1 V2 V3 V4 V5 V6 238- > 242- > 246- > 250- > 254- > 258- 241 > 245 > 249 > 253 > 257 > 261 > > > > > -034 to +046 - as given 6339 Blank 574 262- P-Wave Duration 309 Lead I II III aVR aVL aVF 262- > 266- > 270- > 274- > 278- > 282- 265 > 269 > 273 > 277 > 281 > 285 > > > > > V1 V2 V3 V4 V5 V6 286- > 290- > 294- > 298- > 302- > 306- 289 > 293 > 297 > 301 > 305 > 309 > > > > > +000 to +035 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 310- Q-Wave Amplitude 357 Lead I II III aVR aVL aVF 310- > 314- > 318- > 322- > 326- > 330- 313 > 317 > 321 > 325 > 329 > 333 > > > > > V1 V2 V3 V4 V5 V6 334- > 338- > 342- > 346- > 350- > 354- 337 > 341 > 345 > 349 > 353 > 357 > > > > > -344 to +000 - as given 6339 Blank 574 358- Q-Wave Duration 405 Lead I II III aVR aVL aVF 358- > 362- > 366- > 370- > 374- > 378- 361 > 365 > 369 > 373 > 377 > 381 > > > > > V1 V2 V3 V4 V5 V6 382- > 386- > 390- > 394- > 398- > 402- 385 > 389 > 393 > 397 > 401 > 405 > > > > > +000 to +022 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 406- R-Wave Amplitude 453 Lead I II III aVR aVL aVF 406- > 410- > 414- > 418- > 422- > 426- 409 > 413 > 417 > 421 > 425 > 429 > > > > > V1 V2 V3 V4 V5 V6 430- > 434- > 438- > 442- > 446- > 450- 433 > 437 > 441 > 445 > 449 > 453 > > > > > +000 to +496 - as given 6339 Blank 574 454- R-P Amplitude 501 Lead I II III aVR aVL aVF 454- > 458- > 462- > 466- > 470- > 474- 457 > 461 > 465 > 469 > 473 > 477 > > > > > V1 V2 V3 V4 V5 V6 478- > 482- > 486- > 490- > 494- > 498- 481 > 485 > 489 > 493 > 497 > 501 > > > > > +000 to +176 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 502- R-Wave Duration 549 Lead I II III aVR aVL aVF 502- > 506- > 510- > 514- > 518- > 522- 505 > 509 > 513 > 517 > 521 > 525 > > > > > V1 V2 V3 V4 V5 V6 526- > 530- > 534- > 538- > 542- > 546- 529 > 533 > 537 > 541 > 545 > 549 > > > > > +000 to +024 - as given 6339 Blank 574 550- R-P Duration 597 Lead I II III aVR aVL aVF 550- > 554- > 558- > 562- > 566- > 570- 553 > 557 > 561 > 565 > 569 > 573 > > > > > V1 V2 V3 V4 V5 V6 574- > 578- > 582- > 586- > 590- > 594- 577 > 581 > 585 > 589 > 593 > 597 > > > > > +000 to +013 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 598- S-Wave Amplitude 645 Lead I II III aVR aVL aVF 598- > 602- > 606- > 610- > 614- > 618- 601 > 605 > 609 > 613 > 617 > 621 > > > > > V1 V2 V3 V4 V5 V6 622- > 626- > 630- > 634- > 638- > 642- 625 > 629 > 633 > 637 > 641 > 645 > > > > > -474 to +000 - as given 6339 Blank 574 646- S-Wave Duration 693 Lead I II III aVR aVL aVF 646- > 650- > 654- > 658- > 662- > 666- 649 > 653 > 657 > 661 > 665 > 669 > > > > > V1 V2 V3 V4 V5 V6 670- > 674- > 678- > 682- > 686- > 690- 673 > 677 > 681 > 685 > 689 > 693 > > > > > +000 to +021 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 694- T-Wave Amplitude 741 Lead I II III aVR aVL aVF 694- > 698- > 702- > 706- > 710- > 714- 697 > 701 > 705 > 709 > 713 > 717 > > > > > V1 V2 V3 V4 V5 V6 718- > 722- > 726- > 730- > 734- > 738- 721 > 725 > 729 > 733 > 737 > 741 > > > > > -156 to +303 - as given 6339 Blank 574 742- T-P Amplitude 789 Lead I II III aVR aVL aVF 742- > 746 > 750- > 754- > 758- > 762- 745 > 749 > 753 > 757 > 761 > 765 > > > > > V1 V2 V3 V4 V5 V6 766- > 770- > 774- > 778- > 782- > 786- 769 > 773 > 777 > 781 > 785 > 789 > > > > > +000 to +086 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 790- T-Wave Duration (Measured from Peak of 837 T-Wave) Lead I II III aVR aVL aVF 790- > 794- > 798- > 802- > 806- > 810- 793 > 797 > 801 > 805 > 809 > 813 > > > > > V1 V2 V3 V4 V5 V6 814- > 818- > 822- > 826- > 830- > 834- 817 > 821 > 825 > 829 > 833 > 837 > > > > > +000 to +033 - as given 6339 Blank 574 838- T-P Duration 885 Lead I II III aVR aVL aVF 838- > 842- > 846- > 850- > 854- > 858- 841 > 845 > 849 > 853 > 857 > 861 > > > > > V1 V2 V3 V4 V5 V6 862- > 866- > 870- > 874- > 878- > 882- 865 > 869 > 873 > 877 > 881 > 885 > > > > > +000 to +034 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 886- Q-S Amplitude 933 Lead I II III aVR aVL aVF 886- > 890- > 894- > 898- > 902- > 906- 889 > 893 > 897 > 901 > 905 > 909 > > > > > V1 V2 V3 V4 V5 V6 910- > 914- > 918- > 922- > 926- > 930- 913 > 917 > 921 > 925 > 929 > 933 > > > > > -399 to +496 - as given 6339 Blank 574 934- Q-S Duration 981 Lead I II III aVR aVL aVF 934- > 938- > 942- > 946- > 950- > 954- 937 > 941 > 945 > 949 > 953 > 957 > > > > > V1 V2 V3 V4 V5 V6 958- > 962- > 966- > 970- > 974- > 978- 961 > 965 > 969 > 973 > 977 > 981 > > > > > -005 to +028 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 982- P-R Wave Duration 1029 Lead I II III aVR aVL aVF 982- > 986- > 990- > 994- > 998- > 1002- 985 > 989 > 993 > 997 > 1001 > 1005 > > > > > V1 V2 V3 V4 V5 V6 1006-> 1010-> 1014-> 1018-> 1022-> 1026- 1009 > 1013 > 1017 > 1021 > 1025 > 1029 > > > > > +000 to +086 - as given 6339 Blank 574 1030- ST-1 (.08 seconds after QRS) 1077 Lead I II III aVR aVL aVF 1030-> 1034-> 1038-> 1042-> 1046-> 1050- 1033 > 1037 > 1041 > 1045 > 1049 > 1053 > > > > > V1 V2 V3 V4 V5 V6 1054-> 1058-> 1062-> 1066-> 1070-> 1074- 1057 > 1061 > 1065 > 1069 > 1073 > 1077 > > > > > -148 to +147 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 1078- ST-2 (.12 seconds after QRS) 1125 Lead I II III aVR aVL aVF 1078-> 1082-> 1086-> 1090-> 1094-> 1098- 1081 > 1085 > 1089 > 1093 > 1097 > 1101 > > > > > V1 V2 V3 V4 V5 V6 1102-> 1106-> 1110-> 1114-> 1118-> 1122- 1105 > 1109 > 1113 > 1117 > 1121 > 1125 > > > > > -132 to +216 - as given 6339 Blank 574 1126- ST-3 (.16 seconds after QRS) 1173 Lead I II III aVR aVL aVF 1126-> 1130-> 1134-> 1138-> 1142-> 1146- 1129 > 1133 > 1137 > 1141 > 1145 > 1149 > > > > > V1 V2 V3 V4 V5 V6 1150-> 1154-> 1158-> 1162-> 1166-> 1170- 1153 > 1157 > 1161 > 1165 > 1169 > 1173 > > > > > -118 to +254 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 1174- ST-4 (ST2-ST1)/ST3-ST2) 1221 Lead I II III aVR aVL aVF 1174-> 1178-> 1182-> 1186-> 1190-> 1194- 1177 > 1181 > 1185 > 1189 > 1193 > 1197 > > > > > V1 V2 V3 V4 V5 V6 1198-> 1202-> 1206-> 1210-> 1214-> 1218- 1201 > 1205 > 1209 > 1213 > 1217 > 1221 > > > > > -082 to +140 - as given 6339 Blank 574 1222- QT (Time from onset of QRS to end of T 1269 Wave) Lead I II III aVR aVL aVF 1222-> 1226-> 1230-> 1234-> 1238-> 1242- 1225 > 1229 > 1233 > 1237 > 1241 > 1245 > > > > > V1 V2 V3 V4 V5 V6 1246-> 1250-> 1254-> 1258-> 1262-> 1266- 1249 > 1253 > 1257 > 1261 > 1265 > 1269 > > > > > +000 to +098 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 1270- Heart Rate 1317 Lead I II III aVR aVL aVF 1270-> 1274-> 1278-> 1282-> 1286-> 1290- 1273 > 1277 > 1281 > 1285 > 1289 > 1293 > > > > > V1 V2 V3 V4 V5 V6 1294-> 1298-> 1302-> 1306-> 1310-> 1314- 1297 > 1301 > 1305 > 1309 > 1313 > 1317 > > > > > +000 to +169 - as given 6339 Blank 574 1318- Sequence Number of Complex Measured 1365 Lead I II III aVR aVL aVF 1318-> 1322-> 1326-> 1330-> 1334-> 1338- 1321 > 1325 > 1329 > 1333 > 1337 > 1341 > > > > > V1 V2 V3 V4 V5 V6 1342-> 1346-> 1350-> 1354-> 1358-> 1362- 1345 > 1349 > 1353 > 1357 > 1361 > 1365 > > > > > +000 to +010 - as given 6339 Blank 574 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 1366- Lead Code See Detailed Notes 1425 Lead I II III aVR aVL aVF 1366-> 1371-> 1376-> 1381-> 1386-> 1391- 1370 > 1375 > 1380 > 1385 > 1390 > 1395 > > > > > V1 V2 V3 V4 V5 V6 1396-> 1401-> 1406-> 1411-> 1416-> 1421- 1400 > 1405 > 1410 > 1415 > 1420 > 1425 > > > > > 00000 to 17536 - as given 6339 Blank 574 AXES See Detailed Notes 1426- P-Wave 1429 -089 to +267 - as given 6339 Blank 574 1430- QRS 1433 -089 to +267 - as given 6339 Blank 574 1434- T-Wave 1437 -086 to +270 - as given 6339 Blank 574 1438- Work Area 1441 Blank 6913 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 1442- Mean Rate See Detailed Notes 1444 039, 041-112, 114-116, 118-121, 123-124, 129, 138 - as given 6339 Blank 574 1445- Noise Level See Detailed Notes 1447 000 5136 001 1203 Blank 574 1448- Calibration See Detailed Notes 1450 147, 179, 184, 194-201, 203-220, 222, 227, 241, 259 - as given 6339 Blank 574 1451- Interpretation Code #1 See Detailed Notes 1454 1455- Interpretation Code #2 See Detailed Notes 1458 1459- Interpretation Code #3 See Detailed Notes 1462 1463- Interpretation Code #4 See Detailed Notes 1466 1467- Interpretation Code #5 See Detailed Notes 1470 1471- Interpretation Code #6 See Detailed Notes 1474 1475- Interpretation Code #7 See Detailed Notes 1478 Tape Control Loc. ITEM DESCRIPTION & CODES Counts HANES I Data Source 1479- Interpretation Code #8 See Detailed Notes 1482 1483- Interpretation Code #9 See Detailed Notes 1486 1487- BLANK - Data User Work Area 1500 DETAILED NOTES, ELECTROCARDIOGRAM DATA Tape Positions 214-1269 - Matrix of Values The amplitudes are recorded in units of tens of microvolts,volts times 10 to the minus five. The durations are in tens of microseconds, seconds times 10 to the minus five. Tape Positions 1366-1425 - Lead Code The lead codes are a sixteen bit binary code that has been converted to a decimal number for convenience. The interpretation of the codes is given in the attached table (Attachment II) together with the total frequencies of the codes. There is a code for each lead. Each code is the sum of the numbers of the bits of which it is composed. The codes can be broken down in two ways, demonstrated on the attached table. Starting at the bottom right of table, for any code in the table stub the largest number in the column head that is still smaller than the code is marked and subtracted. From the remainder the largest column head that is still smaller than the remainder is subtracted, repeating as necessary. Another method is to convert the code in table stub to a sixteen bit binary number and test the individual bits; in this case a one bit indicates the presence of a code and a zero bit, the absence of a code. The numbers on the right of the table give frequencies with which the codes in the table stub are found on the tapes, and the numbers on the bottom give the frequencies in the number of leads for the decomposed codes. ATTACHMENT II LEAD CODES PAGE 1 OF 3 BASELINE LEAD ARRHYTHMIC TECHNICALLY DATE OUT DATA MISSING COMPLEXES POOR OF RANGE UNRECOGNIZABLE 1 2 4 8 16 32 F 1 X 206 8 X 422 16 X 1,192 24 X X 44 32 X 160 48 X X 36 68 X 271 76 X X 8 100 X X 2 128 9,043 136 X 2 144 X 11 272 X 19 280 X X 1 384 128 512 196 520 X 5 528 X 21 580 X 1 1,024 86 1,032 X 1 1,040 X 17 1,056 40 1,072 X X 1 1,152 7 1,280 14 1,312 X 1 1,336 X X X 1 2,052 X 877 2,060 X X 12 2,084 X X 27 2,308 X 381 2,316 X X 6 2,564 X 1 2,820 X 3 4,164 X 10 6,148 X 178 6,156 X X 1 6,180 X X 3 6,404 X 40 17,408 7 17,424 X X 1 17,432 X X 1 17,536 4 206 1,821 504 1,345 271 ATTACHMENT II LEAD CODES PAGE 2 OF 3 NARROW SPIKES SUGGESTS LOW COMPENSATORY SUGGESTS VENTRICULAR VOLTAGE PAUSE FOLLOWS ARTIFICIAL NOISE PREMATURES QRS PREMATURE PACEMAKER ON TRACING 64 128 256 512 1024 F 1 206 8 422 16 1,192 24 44 32 160 48 36 68 X 271 76 X 8 100 X 2 128 X 9,043 136 X 2 144 X 11 272 X 19 280 X 1 384 X X 128 512 X 196 520 X 5 528 X 21 580 X X 1 1,024 X 86 1,032 X 1 1,040 X 17 1,056 X 40 1,072 X 1 1,152 X X 7 1,280 X X 14 1,312 X X 1 1,336 X X 1 2,052 877 2,060 12 2,084 27 2,308 X 381 2,316 X 6 2,564 X 1 2,820 X X 3 4,164 X 10 6,148 178 6,156 1 6,180 3 6,404 X 40 17,408 X 7 17,424 X 1 17,432 X 1 17,536 X X 4 292 9,195 594 227 181 ATTACHNT II LEAD CODES PAGE 3 OF 3 SUGGESTS SUPRAVENTRICULAR SUGGESTS 60 CYCLE PREMATURES BIGEMINY NOISE 2048 4096 8192 16,384 32,768 F 1 206 8 422 16 1,192 24 44 32 160 48 36 68 271 76 8 100 2 128 9,043 136 2 144 11 272 19 280 1 384 128 512 196 520 5 528 21 580 1 1,024 86 1,032 1 1,040 17 1,056 40 1,072 1 1,152 7 1,280 14 1,312 1 1,336 1 2,052 X 877 2,060 X 12 2,084 X 27 2,308 X 381 2,316 X 6 2,564 X 1 2,820 X 3 4,164 X 10 6,148 X X 178 6,156 X X 1 6,180 X X 3 6,404 X X 40 17,408 X 7 17,424 X 1 17,432 X 1 17,536 X 4 1,529 232 13 Tape Positions 1426-1437 - Axes The axes are given in degree units. Tape Positions 1442-1444 - Mean Rate Mean rate is in beats per minute. It is the average of the rates measured on the 12 individual leads and given in the matrix above, positions 1270-1317. Tape Positions 1445-1447 - Noise Noise is a computed scale. Theoretically, the scale is unbounded but the presence of only ones and zeros indicates that there was a relatively low level of noise in the electrocardiograms. Tape Positions 1448-1450 - Calibration The calibration is the number of digital units per analog unit, the number of A/D units per millivolt. Tape Positions 1451-1486 - Interpretation Codes The codes giving the program's interpretation of electrocardiograms are on Attachment I, with an operational definition, an English expression, and the frequency with which they were found. Lead identification used in this listing shows AVR for aVR, AVL for aVL, AVF for aVF, V1 for V1, V2 for V2, V3 for V3, V4 for V4, V5 for V5, and V6 for V6. Code Definition Interpretation Frequency 0023 Short PR interval Accelerated A-V conduction - 203 usually not significant 0030 Borderline PR interval Borderline incomplete A-V 137 block 0031 Prolonged PR interval Incomplete A-V block 59 0032 Rate under 40, P present Probable high degree A-V block 1 1114 Rate variable Atrial fibrillation 30 2000 Sinus rhythm 5057 2005 Irregular sinus mechanism Sinus arrhythmia 24 2015 Rhythm not identified 28 2016 Origin not identified Regular rhythm, undetermined 19 2070 Rate over 100 Tachycardia 10 2110 Rate under 60 Bradycardia 22 2120 Rate under 40 Marked bradycardia 1 2130 Rate over 100 Sinus tachycardia 110 2140 Rate under 60 Sinus bradycardia 1044 2145 Rate 40-45 Marked sinus bradycardia 21 2170 Variable rate or artifact Premature systoles 102 2180 Premature systoles 18 probably ventricular 2190 Premature systoles 126 probably supraventricular 2195 Alternating prematures Bigeminy 10 2410 P exceeds .24 MV. Right atrial abnormality 1 2420 P exceeds .12 sec. Normal variant unless clinical 184 evidence of left atrial or ventricular disease 2430 P terminally negative in V1 Normal variant unless clinical 238 evidence of left atrial or ventricular disease Code Definition Interpretation Frequency 2440 P waves absent Junctional rhythm - usually 1 normal variant 2445 P and QRS axes rightward Reversed arm leads 23 2460 Abnormal P axis 16 2470 Abnormal P axis Junctional rhythm - usually 3 normal variant 2500 Abnormal P axis, P negative Left atrial rhythm 1 in 1 or V6 3002 QRS axis range 195 to 269 Superior axis 7 3007 QRS axis range 110 to 194 Abnormal RAD, could be RVE or 12 left posterior hemiblock 3010 QRS axis range 110 to 194 Abnormal RAD, possible 7 left posterior hemiblock 3012 QRS axis range 110 to 194 Abnormal RAD 7 3017 QRS axis range 91 to 109 Slight right axis deviation 15 3022 QRS axis range 85 to 104 Vertical axis 316 3032 QRS axis range 0 to -14 Normal axis for age group 517 3042 QRS axis range 0 to -29 Slight left axis deviation 313 3052 QRS axis range -30 to -90 Abnormal left axis deviation 176 3057 QRS axis range -45 to -90 Abnormal LAD, possible left 58 anterior hemiblock 3062 QRS -45 to -90, initial axis Consistent with left 63 inferior and rightward anterior hemiblock 3067 Indeterminate axis 118 3200 Low QRS voltage in limb leads Borderline low QRS voltage 115 3210 Low QRS voltage limb or Non-specific low voltage QRS 20 chest leads abnormality 3230 QRS axis posterior and Consistent with chronic lung 1 superior disease 3240 P axis rightward, low QRS Consistent with chronic lung 2 voltage limb leads and V5-V6 disease Code Definition Interpretation Frequency 3400 R exceeds S in V1 Probably normal variant but 17 could be RVE 3401 R exceeds S in V1 Possible RVE 44 3412 R exceeds .6 MV. in V1 Possible RVE 1 3416 R exceeds S in V1 Probable RVE 18 S exceeds .6 MV. in V5 or V6 3430 R exceeds S or .6 MV. in V1 Consistent with RVE 1 S exceeds .6 MV. in V6, RAD 3450 Broad R in V1-V2 Consistent with posterior 6 infarct 3900 Persistent S V3-V6 High chest lead placement 60 unless clinical evidence of heart or lung disease 4011 R+S exceeds 4.5MV 1 chest Possible LVE, could be normal 4 lead variant this age group 4012 R exceeds 2.0 MV in V6 Possible LVE, could be normal 8 variant this age group 4015 R exceeds 1.5 MV in lead 1 Possible LVE, could be normal 12 variant this age group 4016 R exceeds 2.0 MV in 2.3 or Possible LVE, could be normal 2 AVF variant this age group 4017 Q/S V1-2 + R V5-6 exceeds 3.0 Possible LVE, could be normal 25 variant this age group 4018 Q or S exceeds 1.4 MV in AVR Possible LVE, could be normal 17 variant this age group 4019 R exceeds .75 MV in AVL Possible LVE, could be normal 19 variant this age group 4047 Q/S V1-2 + R V5-6 exceeds 3.0 Possible LVE 205 4049 R exceeds .75 MV in AVL Possible LVE 151 4052 R exceeds 2.0 MV in V6 Probable LVE 121 4054 R exceeds 2.6 MV in V5 Probable LVE 25 4057 Q/S V1-2 + R V5-6 exceeds 4.0 Probable LVE 21 Code Definition Interpretation Frequency 4061 R+S exceeds 4.5MV 1 chest Consistent with LVE 17 lead 4065 R exceeds 1.5 MV in lead 1 Consistent with LVE 52 4068 Q or S exceeds 1.4 MV in AVR Consistent with LVE 6 4069 R exceeds 1.1 MV in AVL Consistent with LVE 39 4071 R+S exceeds 4.5MV 1 chest Consistent with LVE 5 lead left atrial abnormality 4072 R exceeds 2.0 MV in V6 Consistent with LVE 27 left atrial abnormality 4074 R exceeds 2.6 MV in V5 Consistent with LVE 6 left atrial abnormality 4075 R exceeds 1.5 MV in lead 1 Consistent with LVE 8 left atrial abnormality 4077 Q/S V1-2 + R V5-6 exceeds 3.0 Consistent with LVE 55 left atrial abnormality 4078 Q or S exceeds 1.4 MV in AVR Consistent with LVE 6 left atrial abnormality 4079 R exceeds .75 MV in AVL Consistent with LVE 32 left atrial abnormality 4081 R+S exceeds 4.5MV 1 chest Consistent with LVE 9 lead ST depression 4082 R exceeds 2.0 MV in V6 Consistent with LVE 16 ST depression 4085 R exceeds 1.5 MV in lead 1 Consistent with LVE 19 ST depression 4087 Q/S V1-2 + R V5-6 exceeds 3.0 Consistent with LVE 36 ST depression 4089 R exceeds .75 MV in AVL Consistent with LVE 16 ST depression 4091 R+S exceeds 4.5MV 1 chest lead Consistent with LVE 3 Left axis deviation 4092 R exceeds 2.0 MV in V6 Consistent with LVE 6 left axis deviation Code Definition Interpretation Frequency 4094 R exceeds 2.6 MV in V5 Consistent with LVE 3 left axis deviation 4095 R exceeds 1.5 MV in lead 1 Consistent with LVE 17 left axis deviation 4097 Q/S V1-2 + R V5-6 exceeds 3.0 Consistent with LVE 21 left axis deviation 4099 R exceeds .75 MV in AVL Consistent with LVE 67 left axis deviation 4102 R exceeds 2.0 MV in V6 Consistent with LVE 1 intraventricular block 4105 R exceeds 1.5 MV in lead 1 Consistent with LVE 1 intraventricular block 4107 Q/S V1-2 + R V5-6 exceeds 3.0 Consistent with LVE 7 intraventricular block 4109 R exceeds .75 MV in AVL Consistent with LVE 1 intraventricular block 4115 R exceeds 1.5 MV in lead 1 Possible LVE 1 left atrial abnormality 4117 Q/S V1-2 + R V5-6 exceeds 3.0 Possible LVE 8 left atrial abnormality 4119 R exceeds .75 MV in AVL Possible LVE 1 left atrial abnormality 4122 R exceeds 2.0 MV in V6 Possible LVE 1 ST depression 4135 R exceeds 1.5 MV in lead 1 Possible LVE 1 left axis deviation 4137 Q/S V1-2 + R V5-6 exceeds 3.0 Possible LVE 5 left axis deviation 4139 R exceeds .75 MV in AVL Possible LVE 1 left axis deviation 4152 R exceeds 2.0 MV in V6 Possible LVE 1 non-specific T abnormality 4157 Q/S V1-2 + R V5-6 exceeds 3.0 Possible LVE 5 non-specific T abnormality Code Definition Interpretation Frequency 4164 R exceeds 2.6 MV in V5 Possible LVE 1 prolonged QT interval 4167 Q/S V1-2 + R V5-6 exceeds 3.0 Possible LVE 1 prolonged QT interval 4310 High QRS voltage and RVE Probable biventricular 7 enlargement 4400 Broad QRS, terminal QRS Normal variant unless clinical 75 rightward and anterior evidence of heart or lung disease 4405 Crista pattern Normal variant unless clinical 21 evidence of heart or lung disease 4410 Broad QRS, terminal QRS Right bundle branch block 89 rightward and anterior 4430 Broad QRS Intraventricular block 35 4440 Broad QRS, terminal QRS 1st degree LBBB, probable LVE 4 leftward, broad R V5-V6 4445 Broad QRS, terminal QRS Left bundle branch block 31 leftward, broad R V5-V6 4450 Short PR interval, broad QRS Wolff-Parkinson-White 1 syndrome, type B 4460 Short PR interval, broad QRS Wolff-Parkinson-White 1 syndrome, type A 4475 Short PR interval, broad QRS Possible Wolff-Parkinson-White 3 syndrome, type unclassified 5000 ST depression -.1 MV. or more Non-specific ST abnormality 8 5003 ST elevation, R-T variant early repolarization 400 5004 ST elevation, R-T variant Normal for age group 85 5005 Borderline ST depression 386 5006 Sinus tachycardia and Borderline ST depression 5 ST depression or atrial T effects 5008 ST-T depression Non-specific ST-T abnormality 98 Code Definition Interpretation Frequency 5010 Slight ST elevation Probably R-T variant unless 17 clinical evidence of injury - inferior 5011 Slight ST elevation Probably R-T variant unless 19 clinical evidence of injury - anterior 5012 Slight ST elevation Probably R-T variant unless 1 clinical evidence of injury - lateral 5021 ST depression -.2 MV. or more Consistent with ischemia 1 5025 Downward sloping ST segment Non-specific ST abnormality 6 5031 ST elevation Subepicardial injury - 1 anterior 5051 Marked ST elevation Subepicardial injury - 2 anterior 5060 ST depression -.1 MV. or more Non-specific ST-T abnormality 87 negative T or ischemia 5400 Negative T waves in V1-V2 Atypical T waves, could be 24 normal variant 5405 Tall T waves in V leads May be normal variant, 23 hyperkalemia or posterior ischemia 5407 Low T waves Non-specific T abnormality 133 5408 Low or negative T waves Non-specific T abnormality 65 5411 Negative T in V2-V4 Could be anterior ischemia or 6 age over 30 right ventricular overload 5414 Negative T in V2-V4 Anterior wall ischemia 9 5415 Negative T waves Subepicardial ischemia 2 5417 Negative T waves Marked subepicardial ischemia 1 5450 Abnormal QRS-T angle, 91-269 Non-specific T abnormality 22 5470 Negative T in 2, 3, AVF Inferior wall ischemia 3 5500 Negative T in 1, 2, AVL, V3-V6 Lateral wall ischemia 33 Code Definition Interpretation Frequency 5505 Negative T in 1, 2, AVL, V3-V6 Marked lateral ischemia 3 5510 Negative T in 2, 3, AVF Inferior and lateral ischemia 5 and 1, AVL, V5-V6 5515 Negative T in 2, 3, AVF Marked inferior and lateral 1 and 1, AVL, V5-V6 ischemia 5520 Negative T in 3 V leads and Anterolateral ischemia 10 1, 2, AVL, V3-V6 5525 Negative T in 3 V leads and Marked anterolateral ischemia 3 1, 2, AVL, V3-V6 6000 Unusual R progression Reversed chest lead sequence 2 6001 Poor R progression V leads Possible high chest lead 99 placement, anteroseptal infarct or LVE 6002 Poor R progression V leads Could be anteroseptal infarct 16 or LVE 6003 Unusual R progression Low chest lead placement 6 or unusual anatomy 6004 Unusual R progression High chest lead placement 179 or unusual anatomy 6011 QS in V1-V2 Could be high chest lead 8 placement, normal variant, anteroseptal infarct or LVE 6012 QS in V1-V2 Could be anteroseptal infarct 2 or LVE 6021 Decreasing R amplitude V1-V3 Could be anteroseptal infarct 6 or LVE 6025 Poor R progression V leads Cannot exclude anterior 93 infarct but probably due to LVE alone 6026 QS in V1-V2 Cannot exclude anterior 1 infarct but probably due to LVE alone 6027 Decreasing R amplitude V1-V3 Cannot exclude anterior 4 infarct but probably due to LVE alone Code Definition Interpretation Frequency 6028 Atypical Q V1-V4 Cannot exclude anterior 13 infarct but probably due to LVE alone 6031 Atypical Q V1-V4 Could be anteroseptal infarct 23 or LVE 6040 Small R in 2 leads of V2-V5 Possible anterior infarct 57 or LVE 6050 Absent R in 2 leads of V2-V5 Consistent with anterior 24 infarct, age undetermined 6060 Small or absent R and Consistent with anterior 12 negative T 2 leads of V2-V5 infarct, age undetermined 6070 Small or absent R and Consistent with acute anterior 8 elevated ST 2 leads of V2-V5 infarct 6075 Small or absent R and Could be R-T variant with 4 elevated ST 2 leads of V2-V5 high chest lead placement or acute anterior infarct 6077 Small or absent R and Could be R-T variant with 21 elevated ST 2 leads of V2-V5 high chest lead placement or anterior infarct 6080 Small or absent R and Acute anterior infarct 2 elevated ST 2 leads of V2-V5 or old process with persistent ST elevation 6085 Small or absent R and Could be LVE or anterior 5 elevated ST 2 leads of V2-V5 infarct, recent or with persistent ST elevation 6410 Abnormal Q or QS in Consistent with anterolateral 2 3 leads of 1, AVL, V5-V6 infarct, age undetermined 6420 Abnormal Q and negative T in Consistent with anterolateral 1 3 leads of 1, AVL, V5-V6 infarct, age undetermined 7010 Abnormal Q or QS in Consistent with inferior 14 2 leads of 2, 3, AVF infarct, age undetermined 7020 Abnormal Q and negative T in Consistent with inferior 32 2 leads of 2, 3, AVF infarct, age undetermined 7030 Abnormal Q and elevated ST in Consistent with acute inferior 3 2 leads of 2, 3, AVF infarct Code Definition Interpretation Frequency 7045 Abnormal Q and elevated ST in Could be LVE or inferior 1 2 leads of 2, 3, AVF infarct, recent or with persistent ST elevation 7401 Prolonged QT interval or QT-U Could be electrolyte imbalance 1 fusion or drug effects 7402 Borderline QT interval 218 7000 Borderline Q or QS in Possible inferior infarct 76 2 leads of 2, 3, AVF
