 |
 |
 |
|
   |
||||||||
|
|
|||||||
|
Scientific Data Documentation
National Hospital Discharge Survey, 1988-1989
DSN: CC36.NHDS88 CC36.NHDS89 ABSTRACT Introduction.--This document and its attachments allow one to use the 1988 data tape which contains the data collected by the National Hospital Dis- charge Survey conducted by the National Center for Health Statistics. The National Hospital Discharge Survey provides a continuous sample of hospital discharge records, collecting medical and demographic information for calcu- lating statistics on hospital utilization. The survey consists of data abstracted from the face sheets of the medical records for sampled inpatients discharged from a national sample of non-Federal short-stay hospitals. For a description of the survey design and data collection procedures, see below. For a more detailed description of the survey design, data collection proce- dures, and the estimation process, see Reference 1. BACKGROUND To provide more complete and precise information on the utilization of the Nation's hospitals and on the nature and treatment of illness among the hospitalized population, NCHS in 1962 began exploring possibilities for surveying morbidity in hospitals. A national advisory group was established. The NCHS conducted planning discussions with other elements of the Public Health Service. Hospitalization material from the Survey Research Center of the University of Michigan, the American Hospital Association, and the Professional Activities Study was examined and evaluated. In 1963, a study by the School of Public Health of the University of Pittsburgh under contract to the NCHS demonstrated the feasibility of an NHDS type of program. An additional pilot study using enumerators from the Bureau of the Census was conducted in late 1964 and confirmed the University of Pittsburgh's findings. Finally, with advice and support from the American Hospital Association, the American Medical Association, individual experts, other professional groups, and elements of the U.S. Public Health Service, the NCHS initiated the National Hospital Discharge Survey in 1964. POPULATION DESCRIPTION Source of the Data.--The National Hospital Discharge Survey (NHDS) covers discharges from noninstitutional hospitals, exclusive of Federal, military, and Veterans Administrative hospitals, located in the 50 States and the District of Columbia. Only short-stay hospitals (hospitals with an average length of stay for all patients of less than 30 days) or those whose specialty is general (medical or surgical) or children's general are included in the survey. These hospitals must also have six or more beds staffed for patient use. METHODS Sampling Frame and Size of Sample Beginning with 1988, the NHDS sampling frame consisted of hospitals that were listed in APRIL 1987 SMG Hospital Market Tape (2), met the above criteria, and began accepting patients by August 1987. For 1988 the sample consisted of 542 hospitals. Of the 542 hospitals, 11 were found to be out of scope (ineligible because they went out of business or otherwise failed to meet the criteria for the NHDS universe. Of the 531 inscope (eligible) hospitals, 422 hospitals responded to the survey. For 1989 the sample consisted of 542 hospitals. Of the 542 hospitals, 16 were found to be out of scope (ineligi- ble) because they went out of business or otherwise failed to meet the criteria for the NHDS universe. Of the 526 inscope (eligible) hospitals, 408 hospitals responded to the survey. Sample Design and Data Collection The NCHS has conducted the NHDS continuously since 1965. The original sample was selected in 1964 from a frame of short-stay hospitals listed in the National Master Facility Inventory. That sample was updated periodically with samples of hospitals that opened later. Sample hospitals were selected with probabilities ranging from certainty for the largest hospitals to 1 in 40 for the smallest hospitals. Within each sample hospital, a systematic random sample of discharges was selected. A report on the design and deve- lopment of the original NHDS was published (1). In 1988, the NHDS was redesigned to provide geographic sampling comparability with other surveys conducted the NCHS; to update the sample of hospitals selected into the survey; and to maximize the use of data collected through automated systems. The redesigned NHDS sample included with certainty all hospitals with 1,00 or more beds or 40,000 or more discharges annually. The remaining sample of hospitals is based on a stratified three stage design. The first stage consists of selection of 112 primary sampling units (PSU's) that comprise a probability subsample of PSU's used in the 1985-94 National Health Interview Survey. The second stage consists of selection of non- certainty hospitals from the sample PSU's. At the third stage a sample of discharges was selected by a systematic random sampling technique. These changes in the survey may affect trend data, that is, some of the differences between NHDS statistics based on the 1965-87 sample and stati- stics based on the sample drawn for the new design may be due to sampling error rathe than changes in hospital utilization. The NHDS sampling frame consists of eligible hospitals which began accepting inpatients before September 1, 1987, and were listed in the April 1987 SMG Hospital Market Data Tape (SMG Marketing Group, Inc. 1989). See Appendix I for a more detailed description of the survey redesign. Two data collection procedures were used for the survey. The first was a manual system of sample selection and data abstraction. The second was an automated method, used for approximately 37 percent of the respondent hospitals, that involved the purchase of data tapes from abstracting service organizations. In the manual system, the sample selection and the transcription of information from the hospital records to abstract forms were performed at the hospitals. The completed forms, along with sample selection control sheets, were forwarded to NCHS for coding, editing, and weighing. A few of these hospitals submitted their data via computer printout or tape. Of the hospitals using the manual system, about two thirds had the work performed by their own medical records staff. In the remaining hospitals using the manual system, personnel of the U.S. Bureau of the Census did the work on behalf of NCHS. For the automated system, NCHS purchased tapes containing machine-readable medical record data from abstracting service organizations. Records were systematically sampled by NCHS. The Medical Abstract Form (Figure 1) and the abstract service data tapes contain items relating to the personal characteristics of the patient, including birth date or age, sex, race, and marital status, but not name and address; administrative information, including admission and discharge dates, discharge status, and medical record number; and medical information, including diagnoses and surgical and non operations or procedures. Since 1977, patient zip code, expected source of payment, and dates of surgery have also been collected. (The medical record number, date of birth, and patient zip code are confidential information and are not available to the public.) Medical Coding and Edit Medical Coding and Edit, 1988 The medical information recorded on the sample patient abstracts that were collected by the manual system was coded centrally by NCHS staff. A maximum of seven diagnostic codes was assigned for each sample abstract; in addition, if the medical information included surgical or nonsurgical procedures, a maximum of four codes for these procedures was assigned. The coding system currently used for coding the diagnoses and procedures on the medical ab- stract forms, as well as the data that appear on the commercial abstracting services data tapes, is the International Classification of Diseases, 9th Revision, Clinical Modification, or ICD-0-CM (3). All of the diagnostic codes and most of the procedure codes in the ICD-9-CM are utilized with the exception of selected procedure codes in (see Appendix C). NHDS usually presents diagnoses and procedures in the order they are listed on the abstract form or obtained from abstract services. There are excep- tions. For women discharged after a delivery, a code of V27 from the supple- mental classification is entered as the first-listed code. In another exception, a decision was made to reorder some acute myocardial infarction diagnoses. When an acute myocardial infarction is encountered with other circulatory diagnoses and is other than the first entry, it is reordered to first position. If a symptom appears as a first-listed code and a diagnosis appears as a secondary code, the diagnosis replaces the symptom which is moved back. Following conversion of the data on the medical abstract to computer tape and combining it with the automated data tapes, a final medical edit was accomplished by computer inspection and by a manual review of rejected recorded medical information, priority was given to the medical information in the editing decision. Medical Coding and Edit, 1989 Users of the National Hospital Discharge Survey (NHDS) diagnostic and/or procedure data, which is coded to the ICD-9-CM, must take into account annual ICD-9-CM addenda. The addenda lists new codes, new fourth or fifth digits to existing codes as well as other modifications. A list of the changes for October 1986, October 1987, October 1988 and October 1989 are listed in Appendix D. The changes for October 1989 are shown in bold type. The Uniform Hospital Discharge Data Set (UHDDS) Starting with 1979 data, the NHDS has followed guidelines of the Uniform Hospital Discharge Data Set (UHDDS) within the confines of its contractual agreement with participating hospitals. The UHDDS is a minimum data set of items uniformly designed. (4) These items were selected ont he basis of their usefulness to a broad range of organizations and agencies requiring hospital information, uniformity of definition and general availability from medical records and abstract services. Population Estimates Appendix B shows population estimates provided by the U.S. Bureau of the Census. The estimates cover the U.S. civilian resident population on July 1 of the data year. These population estimates are consistent with those published in Current Population Reports, Series P-25; however, these tables are not official population estimates of the Bureau of the Census. Measurement Errors As in any survey, results are subject to nonsampling or measurement errors, which include errors due to hospital nonresponse, missing abstracts, information incompletely or inaccurately recorded on abstract forms, and processing errors. Less than 1 percent of the discharge records failed to include age or sex of patient or date of admission or discharge. If the hospital record did not state age or sex consistent with the age or sex of other patients with the same diagnostic codes. If the dates or admission or discharge were not given, and if they could not be obtained from the monthly sample listing sheet transmitted by the sample hospital, a length of stay was imputed by assigning the patient a stay characteristic of the stay of other patients of the same age. Other edit and imputation procedure may have been undertaken by the abstract service organizations, but are not documented here. Sampling Errors and Rounding of Numbers The standard error is primarily a measure of sampling variability that occurs by chance because only a sample rather than the entire universe is surveyed. The relative standard error of the estimate is obtained by dividing the standard error by the estimate itself and is expressed as a percent of the estimate. The resulting value is multiplied by 100, so the relative standard error is expressed as a percent of the estimate. Estimates of sampling variability were calculated with SESUDAAN software, which computes standard errors by using a first-order Taylor approximation of the deviation of estimates from their expected values. A description of the software and approach is uses was published (5). Relative Standard Errors for Aggregate Estimates Approximate relative standard errors for aggregate estimates are presented in Table-1. To derive error estimates that would be applicable to a wide variety of statistics, numerous variances were calculated and a best fit formulate was produced. The curves were based on a empirically determined relationship between the size of an estimate X and its relative variance. The relative standard error is then derived by taking the square root of the relative variance. The relative standard error of an estimate X RSE(X) may be calculated from the formula: RSE(X) = square root of ( a + b/X ) * 100 with a and b provided in Table 1. Relative Standard Error for Estimates of Percents Approximate relative standard errors (in percent) for estimates of percents may be calculated from Table 1. Relative standard errors for a percent 100 p (0 p 1) may be calculated directly using the formula: RSE(p) = 100 * square root of ( b * (1 - p)/(p * X) ) where 100 p is the percent of interest, X is the base of the percent, and b is the parameter b in the formula for approximating the RSE (X). The values for b are given in Table 1. Parameter Values for Relative Standard Errors Parameter Values for Relative Standard Errors, 1988 Table 1. Parameter values for relative standard errors 1/ National Hospital Discharge Survey aggregate statistics by statistic type: United States, 1988 _______________________________________________________________________________ Estimate (X) Constant a Constant b Number of First-listed/All listed Diagnosis Totals or Sex or Age = 15 or Race=White or Region=Northeast 0.00159142 403.12398 Age 15 0.01255108 393.91963 Region=North Central, West, South Race=Nonwhite 0.00510648 337.01830 Bedsize 100 or Race=Unstated 0.02969914 539.56300 Bedsize=100+ 0.01371942 154.82287 _______________________________________________________________________________ Days of Care Totals or Sex or Age = 15 or Race=White 0.00189727 1730.96623 A 15 or Region+North Central or West or Bedsize = 100 0.01376712 930.32656 Region+Northeast 0.00421487 1001.41481 Region=South or Race=Non-White 0.00768181 1466.82825 Bedsize 100 or Race=Unstated 0.03358205 1477.70031 _______________________________________________________________________________ Procedures Totals or Sex or Age = 15 or Race=White 0.00296686 446.75749 A 15 or Region=North Central or West 0.01265041 482.10858 Region=Northeast 0.00457400 255.98669 Region=South, Race=Non-White 0.03795154 512.21880 Bedsize 100 or Race=Unstated 0.03795154 512.21880 Bedsize = 100 0.01393281 174.60564 ______________________________________________________________________________ 1/ Relative standard error (X) = RSE (X) = square root of ( a + b/X ) * 100 For example, in 1988 the number of discharges from short-stay hospitals for females with a first-listed diagnosis of atherosclerotic heart disease (ICD- 9-CM code 414.0) was 134,000. Using the applicable constants from Table 1 for estimates by sex produces: RSE(134,000) = square root of ( .001591429 + 403.12398 / 134,00 ) * 100 RSE(134,000) = 6.78% The relative standard error for the estimate of interest is 6.78 percent. From this the standard error is obtained by multiplying the relative standard error by the estimate: 134,000 * 6.78% = 9,088 The standard error can be employed to generate confidence intervals or for statistical testing. In this example, the 68% confidence interval for the estimate of female inpatients with a first-listed diagnosis of atherosclero- tic heart disease is: (134,000 - 9,088) <-> (134,000 + 9,088) 124,912 <-> 143,088 Parameter Values for Relative Standard Errors, 1989 Table 1. Parameter values for relative standard errors 1/ for National Hospital Discharge Survey aggregate statistics by statistic type: United States, 1988 Estimate (X) Constant a Constant b Number of First-listed/All-listed Diagnosis Totals; Payment = Medicare, Medicaid, Private, Self; Race = White, Other; Ownership = Non Profit; Bedsize = less than 500; Region = Midwest, South, West; Sex = All; Age = All 0.002902625 478.86519 Payment = Workmen's Compensation 0.001390675 826.82116 Payment = Not Stated; Other Government; No Charge, Other; Race = Not Stated; Ownership = Proprietary, Goverment 0.005325008 651.02985 Bedsize = 500+ 0.004315214 394.87132 Region = Northeast 0.002503409 295.28084 Days of Care Totals; Race = All; Ownership = All; Sex = All; Region = Northeast, South; Age = 15+; Payment = Medicaid, Other Goverment, Private, Self, No Charge, Other; Bedsize = 300+ 0.004364047 1408.24667 Payment = Workmen's Compensation, Not Stated 0.04714936 1773.32961 Payment = Medicare 0.0278040 2855.34521 Age = Less than 15; Region = Midwest, West; Bedsize = Less than 300 0.01687698 1384.83695 Procedures Totals; Payment = Medicare, Medicaid, Private, Self; Ownership = Non-Profit; Race = White, Other; Region = Northeast, South; Sex = All; Age = 15+ 0.004374039 451.10229 Payment = Workmen's Compensation 0.002159305 1131.37891 Payment = Not Stated; Other Government; No Charge, Other; Ownership = Proprietary, Government; Race = Not Stated 0.01859851 631.71403 Region = Midwest, West; Age = Less than 15; Bedsize = All 0.01711983 453.98054 1/ Relative standard error(X) = RSE(x) = square root ( a + b/X ) * 100 For example, in 1989 the number of discharges from short-stay hospitals for females with a first-listed diagnosis of atherosclerotic heart disease (ICD- 9-CM code 414.0) was 134,000. Using the applicable constants from Table 1 for estimates by sex produces: RSE(125,000) = square root of (.002902625 + 478.86519 / 125,000) * 100 RSE(125,000) = 8.21% The relative standard error for the estimate of interest is 8.21 percent. From this the standard error is obtained by multiplying the relative standard error by the estimate: 125,000 * 8.21% = 10,263 The standard error can be employed to generate confidence intervals or for statistical testing. In this example, the 68% confidence interval for the estimate of female inpatients with a first-listed diagnosis of atherosclerotic heart disease is: (125,000 - 10,263) <-> (125,000 + 10,263) 114,737 <-> 135,263 Parameter Values for Relative Standard Errors, 1990 Table I Parameter values for relative standard errors /l for National Hospital Discharge Survey aggregate statistics by statistic type: United States, 1990 FIRST- LISTED DIAGNOSES Constant a Constant b Overall 0.00213274 228.83436 Race White 0.00212480 298.56389 Black 0.00536798 264.99939 Other 0.02898870 119.66112 Not Stated 0.02252373 226.20135 Region Northeast 0.00274374 56.26824 Midwest 0.00487162 183.53099 South 0.00374622 343.89170 West 0.00564256 318.91435 Sex Male 0.00152360 313.07866 Female 0.00124681 311.63218 Age <15 0.01596667 47.11560 15-44 0.00141521 299.76229 45-64 0.00156516 234.54268 65+ 0.00161451 263.22287 DAYS OF CARE Constant a Constant b Overall 0.00357974 452.58154 Race White 0.00329103 599.59678 Black 0.00837988 291.21887 Other 0.04484549 150.12133 Not Stated 0.02913755 634.52913 Region Northeast 0.00368158 146.19498 Midwest 0.00604784 970.00120 South 0.00540049 929.23150 West 0.01035658 830.73994 Sex Male 0.00292604 292.12692 Female 0.00212793 701.56421 Age <15 0.00223988 140.76391 15-44 0.00300517 460.08887 45-64 0.00920278 432.97056 65+ 0.00251490 762.85374 For example, in 1990 the number of discharges from short-stay hospitals for females with a first-listed diagnosis of atherosclerotic heart disease (ICD-9-CM code 414.0) was 133,000. Using the applicable constants from Table I for estimates by sex produces: RSE(l33,000) = 100 * square root of (.00124681 + 311.63218 / 133,000) RSE(133,000) = 5.99% The relative standard error for the estimate of interest is 5.99 percent. From this the standard error is obtained by multiplying the relative standard error by the estimate: 133,000 * 5.99% = 7,969 The standard error can be employed to generate confidence intervals or for Statistical testing. In this example, the 68% confidence interval for the estimate of female inpatients with a first-listed diagnosis of atherosclerotic heart disease is: (133,000 - 7,969) <-> (133,000 + 7,969) 125,031 <-> 140,969 Presentation of Estimates Publication of estimates for the NHDS is based on the relative standard error of the estimate and the number of sample records on which the estimate is based (referred to as the sample size). Estimates are not presented in NCHS reports unless a reasonable assumption regarding the probability distribution of the sampling error is possible. Based on consideration of the complex sample design of the NHDS, the follow- ing guidelines are used for presenting the NHDS estimates: If the sample size is less than 30, the value of the estimate is not reported. If the sample size is 30-59, the value of the estimate is reported but should not be assumed reliable. If the sample size is 60 or more but the relative standard error is over 30 percent, the estimate is reported but If the sample size is 60 or more but the relative standard error is over 30 percent, the estimate is reported but should not be assumed reliable. How to Use the Data Tape The NHDS records are weighted to allow inflation to national or regional estimates. The weight applied to each record is found in tape location 111-115. To produce an estimate of the number of discharges, the weights for the desired records must be summed. To produce an estimate for number of days of care, the weight must be multiplied by the length of stay (tape location 101-104) and these products are summed. Length of stay data can be obtained by using recodes already on the tape (see items 16 and 23 or items 14 and 18 in the tape layout), or by dividing days of care by number of discharges as calculated above. Appendix E contains unweighted and weighted frequencies for selected descrip- tive variables on the data tape. These may be used as a cross-check when processing the data on the user's system. Monthly and Seasonal Estimates Under the New Design (1990) An important difference between the old and new designs is the method used for adjusting weights for sampled cases from responding hospitals for individual months. In the old design, weights for responding hospitals were adjusted monthly to account for nonresponse. In the new design, this approach is maintained to account for hospitals which do not respond for the year. However, for partially responding hospitals (submitting between 6 through 11 months of data), weights are adjusted for the responding months to produce annual estimates. A result of this adjustment is that monthly and seasonal estimates from the NHDS are not strictly valid, but the effect is believed to be small. In the 1990 NHDS, 86 percent of the 474 responding hospitals provided data for all twelve months, and 94 percent provided at least 9 months of data. Diagnosis-Related Groups (DRGs) Many users of the NHDS data tapes have expressed an interest in converting the data to DRGs. This has been done using DRG Grouper Programs obtained from the Health Care Financing Administration. The DRGs and the DRG Grouper Programs were developed outside of the National Center for Health Statistics; any questions about DRGs, other than specific questions about how they relate to NHDS data, should be addressed elsewhere. Questions Questions concerning data on the tape should be directed to Maria Owings, Ph.D., Hospital Care Statistics Branch, Division of Health Care Statistics, National Center for Health Statistics, Presidential Building, Room 956, 6525 Belcrest Road, Hyattsville, Maryland 20782, (301) 436-7125. RECORD LAYOUT General Information NATIONAL HOSPITAL DISCHARGE SURVEY - 1988-89 OUTLINE OF THE ITEMS AND CODES ARRANGED BY LOCATION IN THE FINAL MEDICAL TAPE RECORD This section consists of a detailed breakdown of each tape record, providing a brief description of each item of data included in the records. The data are arranged sequentially according to their physical location on the tape record. Unless otherwise stated in the Item Description, the data are derived from the abstract form. The SMG Hospital Market Tape and the hospi- tal interview are alternate sources of data, while the computer generates other items. 1-2 Blank 3 Discharge Status Recode Item Tape Number of Number Location Positions Item Description and Codes 1 3 1 Discharge Status Recode 1: Alive 2: Dead 3: Not State 4-29 Blank 30-33 Age Item Tape Number of Number Location Positions Item Description and Codes 2 30-33 4 Age Units Number (Location 33) (Location 30-32) 1: Years 001-124 2: Months 001-011 3: Days 000-031 34 Sex Item Tape Number of Number Location Positions Item Description and Codes 3 34 1 Sex 1: Male 2: Female 35 Blank 36 Marital Status Item Tape Number of Number Location Positions Item Description and Codes 4 36 1 Marital Status 1: Married 2: Single 3: Widowed 4: Divorced 5: Separated 6: Not Stated 7: Unknown 37-41 Date of Admission Item Tape Number of Number Location Positions Item Description and Codes 5 37-41 5 Date of Admission 5.1 37-38 2 Month of Admission 01: January through 12: December 5.2 39-40 2 Day of Admission 01-31 5.3 41 1 Year of Admission 7: 1987 8: 1988 42-46 Date of Discharge Item Tape Number of Number Location Positions Item Description and Codes 6 42-46 5 Date of Discharge 6.1 42-43 2 Month of Discharge 01: January through 12: December 6.2 44-45 2 Day of Discharge 01-31 6.3 46 1 Year of Discharge 8: 1988 47 Discharge Status Item Tape Number of Number Location Positions Item Description and Codes 7 47 1 Discharge Status 1: Routine Discharge/Discharged Home 2: Left Against Medical Advice 3: Discharged/Transferred to Another Short-Term Hospital 4: Discharged/Transferred to Long-Term Care Institution 5: Alive, Disposition Not Stated 6: Dead 7: Status Not Stated 9: 1989 48 Blank 49 Age Recode Item Tape Number of Number Location Positions Item Description and Codes 8 49 1 Age Recode 1: Less than 15 Years 2: 15-44 Years 3: 45-64 Years 4: 65 Years and Over 50 Number of Diagnostic Codes Recorded Item Tape Number of Number Location Positions Item Description and Codes 9 50 1 Number of Diagnostic Codes Recorded 1 - Minimum 7 - Maximum 51 Number of Surgical Codes Recorded Item Tape Number of Number Location Positions Item Description and Codes 10 51 1 Number of Surgical Codes Recorded 0 - Minimum 4 - Maximum 52-56 Date of Surgery #3 Item Tape Number of Number Location Positions Item Description and Codes 11 52-56 5 Date of Surgery #3 11.1 53-53 2 Month of Surgery 01-12 11.2 54-55 2 Day of Surgery 01-31 11.3 56 1 Year of Surgery 7: 1987 8: 1988 9: 1989 57-61 Date of Surgery #4 Item Tape Number of Number Location Positions Item Description and Codes 12 57-61 5 Date of Surgery #4 Same format as above (52-56) 62-77 Blank 78-81 Length of Stay in Days Item Tape Number of Number Location Positions Item Description and Codes 13 78-81 4 Length of Stay in Days This item was generated in the computer on the basis of date of admission and date of discharge. 82-83 Length of Stay Recode #1 (Computer Generated) Item Tape Number of Number Location Positions Item Description and Codes 14 82-83 2 Length of Stay Recode #1 (Computer Generated) 00: 00 Days 01: 01 Days . . . . . . 31: 31 Days and Over 84-85 Age Recode (Computer Generated) Item Tape Number of Number Location Positions Item Description and Codes 15 84-85 2 Age Recode (Computer Generated) 00: Newborn 01: Under 1 Year 02: 01-04 Years 03: 05-14 Years 04: 15-24 Years 05: 25-34 Years 06: 35-44 Years 07: 45-54 Years 08: 55-64 Years 09: 65-74 Years 10: 75 Years and Over 86 Race Item Tape Number of Number Location Positions Item Description and Codes 86 1 Race 1: White 2: Black 3: American Indian/Eskimo/Aleut 4: Asian/Pacific Islander 5: Other 6: Not Stated 87 Marital Status Recode (Computer Generated) Item Tape Number of Number Location Positions Item Description and Codes 17 87 1 Marital Status Recode (Computer Generated) 1: Married 2: Not Married 3: Not Stated 88 Length of Stay Recode #2 (Computer Generated) Item Tape Number of Number Location Positions Item Description and Codes 18 88 1 Length of Stay Recode #2 (Computer Generated) 1: 00-07 Days 2: 08-14 Days 3: 15-21 Days 4: 22-28 Days 5: 29 Days and Over 89-90 Blank 91 Geographic Region Item Tape Number of Number Location Positions Item Description and Codes 19 91 1 Geographic Region 1: Northeast 2: Midwest 3: South 4: West 92-98 Blank 99 Number of Beds Recode (Interview) Item Tape Number of Number Location Positions Item Description and Codes 20 99 1 Number of Beds Recode (Interview) 1: 6-99 Beds 2: 100-199 Beds 3: 200-299 Beds 4: 300-499 Beds 5: 500 Beds or more 100 Hospital Ownership (Interview) Item Tape Number of Number Location Positions Item Description and Codes 21 100 1 Hospital Ownership (Interview) 1: Proprietary 2: Government 3: Not for profit 101-104 Length of Stay in Days Item Tape Number of Number Location Positions Item Description and Codes 22 101-104 4 Length of Stay in Days Data in 78-81 has been transferred to this data field with 0000 days recoded to 0001. 105-110 Blank 111-115 Weight Item Tape Number of Number Location Positions Item Description and Codes 23 111-115 5 Weight Final Adjusted Weight (whole number) 116-130 Blank 131-136 Expected Source(s) of Payment Item Tape Number of Number Location Positions Item Description and Codes 24 131-136 6 Expected Source(s) of Payment 24.1 131 1 Principal 24.2 132 1 Other 24.3 133 1 Other 24.4 134 1 Other 24.5 135 1 Other 24.6 136 1 Other Code Source of Payment 1: Worker's Compensation 2: Medicare 3: Medicaid 4: Not Stated 5: Other Government Payment 6: Blue Cross 7: Other Private/Commercial Insurance 8: Self-Pay 9: No Charge 0: Other 137-141 Date of Surgery #1 Item Tape Number of Number Location Positions Item Description and Codes 25 137-141 5 Date of Surgery #1 Same format as above (52-56) 142-146 Date of Surgery #2 Item Tape Number of Number Location Positions Item Description and Codes 26 142-146 5 Date of Surgery #2 Same format as above (52-56) 147-148 Blank 149-183 Diagnostic Codes Item Tape Number of Number Location Positions Item Description and Codes 27 149-183 35 Diagnostic Codes** (Five-Digit Codes) 27.1 149-153 5 Diagnosis No. 1 27.2 154-158 5 Diagnosis No. 2 27.3 159-163 5 Diagnosis No. 3 27.4 164-168 5 Diagnosis No. 4 27.5 169-173 5 Diagnosis No. 5 27.6 174-178 5 Diagnosis No. 6 27.7 179-183 5 Diagnosis No. 7 _____________________________________________________________________________ **Codes are in compliance with the ICD-9-CM. There is an implied decimal between positions 3 and 4 for each diagnostic code, (with the exception of E-codes, where the implied decimal is between 4 and 5) and between positions 2 and 3 for each surgical code. 184-199 Surgical Codes Item Tape Number of Number Location Positions Item Description and Codes 28 184-199 16 Surgical Codes ** (Four-Digit Codes) 28.1 184-187 4 Surgery No. 1 28.2 188-191 4 Surgery No. 2 28.3 192-195 4 Surgery No. 3 28.4 196-199 4 Surgery No. 4 _____________________________________________________________________________ **Codes are in compliance with the ICD-9-CM. There is an implied decimal between positions 3 and 4 for each diagnostic code, (with the exception of E-codes, where the implied decimal is between 4 and 5) and between positions 2 and 3 for each surgical code. 200 Blank 201-203 DRGs 1-470 Item Tape Number of Number Location Positions Item Description and Codes 29 201-203 3 DRGs 1-470, Grouper 2.0, Federal Register Thursday, September 1, 1983 204-206 DRGs 1-471 Item Tape Number of Number Location Positions Item Description and Codes 30 204-206 3 DRGs 1-471, Grouper 3.0, Federal Register Tuesday, September 3, 1985 207-209 DRGs 1-473 Item Tape Number of Number Location Positions Item Description and Codes 31 207-209 3 DRGs 1-473, Grouper, 4.0, Federal Register Wednesday, September 3, 1986 210-212 DRGs 1-475 Item Tape Number of Number Location Positions Item Description and Codes 32 210-212 3 DRGs 1-475, Grouper, 50.0, Federal Register Tuesday, September 1, 1987 213-215 DRGs 1-477 Item Tape Number of Number Location Positions Item Description and Codes 33 213-215 3 DRGs 1-477, Grouper 6.0, Federal Register Friday, September 30, 1988 TABLES ON CIVILIAN POPULATION Civilian Pop'n. by Sex, Age, & Geographic Region: U.S., 1988 Civilian Population* by Sex, Age, and Geographic Region: United States, July 1, 1988 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) *The NHDS used the civilian noninstitutionalized population to calculate hospital utilization rates from 1965 through 1980. Beginning in 1981, the civilian resident population has been used to calculate rates. If you have purchased NHDS tapes for years before 1981 and calculated rates using the civilian noninstitutionalized population provided in the documentation, these rates will have to be adjusted to be comparable to 1985 rates using the civilian resident population. _____________________________________________________________________________ Age, geographic region, and race Both Sexes Male Female All ages Population in thousands Total 244,125 118,223 125,902 Region: Northeast 50,478 24,133 26,345 Midwest 59,739 29,022 30,716 South 83,791 40,378 43,413 West 50,118 24,690 25,428 Race: White 206,082 100,207 105,875 All other 38,043 18,016 20,027 Under 15 years Total 53,111 27,196 25,913 Under 1 year 3,859 1,976 1,883 1-4 years 14,596 7,470 7,126 5-14 years 24,655 17,750 16,904 Region: Northeast 9,946 5,093 4,852 Midwest 12,943 6,635 6,307 South 18,650 9,543 9,106 West 11,572 5,925 5,647 Race: White 42,728 21,926 20,801 All other 10,383 5,271 5,112 15-44 years Total 114,694 56,670 58,026 15-24 years 36,689 18,262 18,427 25-34 years 43,026 21,280 21,747 35-44 years 34,979 17,128 17,852 Region: Northeast 23,375 11,451 11,924 Midwest 27,972 13,913 14,059 South 39,138 19,195 19,943 West 24,210 12,110 12,100 Race: White 96,096 47,884 48,212 All other 18,598 8,785 9,813 45-64 years Total 45,953 22,004 23,948 45-54 years 24,125 11,714 12,410 55-64 years 21,828 10,290 11,538 Region: Northeast 10,292 4,877 5,413 Midwest 11,212 5,413 5,800 South 15,628 7,408 8,219 West 8,823 4,307 4,516 Race: White 39,959 19,294 20,663 All other 5,995 2,710 3,285 65 years and over Total 30,367 12,353 18,014 65-74 years 17,897 7,945 9,953 75-84 years 9,521 3,584 5,937 85 years and over 2,948 825 2,124 Region: Northeast 6,867 2,712 4,155 Midwest 7,612 3,063 4,549 South 10,374 4,230 6,144 West 5,513 2,347 3,165 Race: White 27,300 11,103 16,198 All other 3,067 1,251 1,816 Civilian Pop'n. by Sex, Age, Geographic Region, & Race: U.S., 1989 Civilian Population* by Sex, Age, and Geographic Region and Race: United States, July 1, 1989 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) *The NHDS used the civilian noninstitutionalized population to calculate hospital utilization rates from 1965 through 1980. Beginning in 1981, the civilian resident population has been used to calculate rates. If you have purchased NHDS tapes for years before 1981 and calculated rates using the civilian noninstitutionalized population provided in the documentation, these rates will have to be adjusted to be comparable to 1985 rates using the civilian resident population. _____________________________________________________________________________ Age, geographic region, and race Both Sexes Male Female All ages Population in thousands Total 246,552 119,467 127,084 Region: Northeast 50,658 24,235 26,422 Midwest 60,007 29,169 30,839 South 84,653 40,808 43,845 West 51,234 25,256 25,978 Race: White 207,667 101,045 106,622 All other 38,884 18,422 20,462 Under 15 years Total 53,914 27,608 26,306 Under 1 year 3,945 2,020 1,925 1-4 years 14,807 7,578 7,230 5-14 years 35,162 18,010 17,151 Region: Northeast 10,098 5,171 4,926 Midwest 13,041 6,686 6,356 South 18,842 9,642 9,201 West 11,932 6,110 5,823 Race: White 43,252 22,193 21,060 All other 10,661 5,415 5,246 15-44 years Total 115,203 56,949 58,251 15-24 years 35,809 17,829 17,980 25-34 years 43,177 21,362 21,814 35-44 years 36,217 17,758 18,457 Region: Northeast 23,302 11,420 11,882 Midwest 27,961 13,914 14,048 South 39,342 19,305 20,037 West 24,597 12,313 12,287 Race: White 96,287 48,012 48,275 All other 18,915 8,940 9,977 45-64 years Total 46,451 22,272 24,178 45-54 years 24,859 12,074 12,785 55-64 years 21,592 10,198 11,393 Region: Northeast 10,319 4,898 5,421 Midwest 11,264 5,444 5,820 South 15,828 7,513 8,316 West 9,040 4,419 4,622 Race: White 40,306 19,494 20,813 All other 6,145 2,779 3,367 65 years and over Total 30,984 12,636 18,348 65-74 years 18,182 8,095 10,087 75-84 years 9,761 3,691 6,070 85 years and over 3,042 850 2,192 Region: Northeast 6,941 2,748 4,193 Midwest 7,740 3,125 4,615 South 10,640 4,347 6,293 West 5,663 2,416 3,247 Race: White 27,822 11,347 16,475 All other 3,162 1,289 1,873 Estimates of Civilian Population, Census-Level: U.S., 1988 All Classes and White ESTIMATES OF THE CIVILIAN RESIDENT POPULATION OF THE UNITED STATES: JULY 1, 1988 CENSUS-LEVEL ALL CLASSES WHITE TOTAL MALE FEMALE TOTAL MALE FEMALE ALL AGES 244125 118223 125902 206082 100207 105875 0-4 18456 9446 9009 14879 7630 7249 0 3859 1976 1883 3116 1599 1517 1 3668 1880 1788 2960 1520 1440 2 3646 1865 1781 2937 1505 1432 3 3678 1881 1797 2967 1521 1447 4 3604 1844 1760 2899 1486 1413 5-9 18028 9226 8802 14503 7440 7063 5 3671 1878 1792 2952 1514 1438 6 3660 1872 1788 2950 1512 1438 7 3685 1887 1799 2972 1525 1447 8 3516 1800 1716 1826 1451 1375 9 3495 1788 1707 2801 1437 1364 10-14 16627 8525 8102 13346 6856 6489 10 3451 1770 1681 2772 1425 1347 11 3389 1738 1651 2720 1397 1323 12 3233 1656 1577 2597 1334 1263 13 3306 1695 1611 2657 1364 1293 14 3248 1666 1582 2601 1337 1264 15-19 18066 9156 8909 14624 7420 7204 15 3354 1717 1637 2677 1373 1305 16 3541 1812 1729 2841 1455 1386 17 3836 1970 1866 3105 1596 1509 18 3670 1850 1819 3005 1517 1488 19 3665 1806 1859 2996 1479 1517 20-24 18623 9106 9518 15375 7564 7811 20 3538 1730 1808 2897 1422 1475 21 3534 1721 1813 2910 1424 1487 22 3622 1769 1853 2980 1464 1516 23 3851 1880 1971 3191 1569 1622 24 4079 2006 2073 3397 1685 1712 25-29 21483 10604 10879 17996 8970 9026 25 4183 2058 2125 3493 1733 1760 26 4239 2089 2150 3552 1767 1784 27 4385 2163 2222 3676 1831 1845 28 4166 2057 2109 3495 1744 1751 29 4510 2238 2272 3780 1895 1885 30-34 21543 10675 10868 18133 9084 9050 30 4501 2235 2266 3779 1896 1883 31 4396 2178 2218 3698 1853 1845 32 4277 2118 2160 3594 1799 1795 33 4167 2061 2106 3510 1756 1755 34 4202 2083 2119 3553 1781 1772 35-39 18956 9310 9646 16110 8010 8100 35 4033 1992 2041 3419 1709 1711 36 3868 1904 1965 3291 1641 1649 37 3786 1854 1932 3199 1587 1613 38 3560 1742 1818 3038 1506 1532 39 3709 1817 1892 3163 1567 1595 40-44 16023 7818 8205 13857 6836 7021 40 3691 1804 1887 3170 1567 1603 41 3810 1866 1944 3341 1654 1687 42 2779 1353 1426 2393 1179 1215 43 2851 1386 1464 2453 1207 1247 44 2892 1409 1484 2499 1229 1270 45-49 12955 6328 6667 11213 5517 5696 45 2990 1459 1531 2595 1278 1317 46 2698 1310 1388 2327 1144 1183 47 2577 1251 1326 2211 1084 1126 48 2331 1138 1193 2014 993 1021 49 2399 1170 1229 2066 1017 1049 50-54 11129 5386 5743 9595 4691 4903 50 2377 1147 1230 2038 993 1045 51 2205 1070 1136 1902 932 970 52 2187 1058 1130 1882 920 962 53 2206 1073 1133 1916 942 974 54 2154 1039 1115 1856 904 952 55-59 10895 5194 5701 9494 4561 4932 55 2100 1005 1095 1810 875 935 56 2135 1021 1114 1857 896 961 57 2247 1071 1175 1959 941 1018 58 2192 1047 1145 1919 923 996 59 2221 1049 1172 1949 926 1022 60-64 10933 5096 5837 9657 4525 5132 60 2281 1075 1206 1993 945 1047 61 2211 1034 1177 1950 916 1034 62 2100 974 1126 1850 863 987 63 2162 1006 1156 1923 900 1023 64 2179 1007 1173 1942 901 1041 65-69 9993 4544 5449 8889 4059 4829 65 2121 974 1147 1872 864 1009 66 2113 970 1143 1887 871 1017 67 2045 936 1110 1822 837 984 68 1895 858 1037 1697 771 926 39 1819 807 1013 1611 717 894 70-74 7904 3400 4504 7104 3065 4038 70 1755 778 977 1572 699 873 71 1656 721 935 1492 651 841 72 1572 678 894 1412 611 801 73 1479 624 854 1333 566 768 74 1444 599 845 1294 538 756 75-79 5903 2322 3581 5318 2091 3227 75 1355 555 801 1218 500 719 76 1271 508 763 1143 457 686 77 1182 462 720 1064 415 649 78 1092 418 673 985 377 608 79 1002 379 623 907 342 565 80-84 3619 1262 2357 3311 1149 2162 80 896 327 569 811 294 516 81 792 280 512 729 256 473 82 698 244 455 642 223 419 83 648 220 428 596 201 395 84 583 191 392 534 174 360 85-89 1908 572 1336 1743 516 1226 85 499 158 341 455 143 312 86 436 133 302 398 121 277 87 378 112 266 345 101 244 88 323 93 231 296 84 212 89 272 75 197 249 68 181 90-94 769 191 578 700 171 529 90 225 59 166 206 53 152 91 182 45 137 166 41 126 92 144 34 111 132 30 102 93 121 29 91 109 26 83 94 97 23 73 87 21 66 95-99 218 50 167 191 43 148 95 74 17 56 66 15 51 96 55 13 42 48 11 37 97 39 9 30 34 7 27 98 28 6 22 24 5 19 99 22 5 17 19 4 14 100+ 54 12 43 46 9 37 1-4 14597 7470 7126 11763 6031 5732 5-13 31406 16084 15322 25248 12959 12288 14-17 13979 7166 6813 11224 5760 5464 18-24 25958 12762 13196 21377 10561 10816 18-21 14407 7108 7299 11809 5842 5967 22-24 11551 5655 5897 9568 4718 4849 15-44 114694 56669 58026 96096 47884 48212 14+ 194263 92693 101570 3311 79618 86337 16+ 187661 89309 98351 811 76909 83769 18+ 180284 85527 94757 729 73858 80874 21+ 169411 80140 89271 642 69440 76394 62+ 36808 15340 21468 596 13766 19249 65+ 30367 12353 18014 534 11103 16198 85+ 2948 825 2124 2679 739 1940 MEDIAN AGE 32.5 31.4 33.6 33.4 32.3 34.5 Black & Other and Black ESTIMATES OF THE CIVILIAN RESIDENT POPULATION OF THE UNITED STATES: JULY 1, 1988 CENSUS-LEVEL BLACK AND OTHER BLACK TOTAL MALE FEMALE TOTAL MALE FEMALE ALL AGES 38043 18106 20027 29894 14064 15830 0-4 3577 1816 1760 2802 1423 1379 0 744 377 366 593 300 293 1 709 360 348 561 284 276 2 709 360 349 552 281 272 3 711 360 350 550 280 270 4 705 358 347 546 278 268 5-9 3525 1786 1739 2783 1412 1371 5 718 365 354 559 284 275 6 710 360 350 558 283 275 7 713 362 351 563 286 277 8 690 349 341 551 279 272 9 693 350 343 552 280 273 10-14 3281 1669 1613 2613 1327 1285 10 680 345 334 544 277 268 11 669 341 328 537 274 263 12 636 322 314 504 255 249 13 649 331 318 515 262 253 14 648 329 318 512 260 252 15-19 3441 1736 1705 2762 1384 1378 15 677 345 332 539 274 266 16 700 357 343 562 285 276 17 731 374 357 594 302 291 18 665 333 332 533 265 268 19 669 327 342 535 258 277 20-24 3248 1542 1706 2596 1215 1382 20 641 308 333 512 243 270 21 623 297 326 499 234 265 22 641 305 337 514 240 273 23 660 310 350 528 245 283 24 682 321 361 543 253 291 25-29 3487 1634 1853 2750 1278 1472 25 690 325 365 547 255 292 26 687 321 366 544 253 292 27 709 332 377 559 259 300 28 671 313 358 526 243 283 29 730 344 386 574 268 306 30-34 3410 1519 1819 2627 1214 1413 30 722 339 383 561 262 300 31 698 326 373 538 248 290 32 683 319 364 526 243 283 33 657 305 352 499 230 270 34 649 302 347 503 232 271 35-39 2846 1300 1546 2156 974 1182 35 613 283 330 469 215 254 36 578 263 315 437 196 241 37 587 268 319 447 201 245 38 523 236 286 391 175 216 39 546 250 296 413 187 225 40-44 2166 982 1184 1613 725 888 40 520 236 284 390 176 214 41 469 212 256 350 158 192 42 386 174 212 283 126 157 43 397 180 218 294 131 162 44 394 179 214 296 133 162 45-49 1782 811 971 1359 608 751 45 395 181 214 300 136 164 46 371 166 205 284 125 159 47 367 167 200 280 125 155 48 326 144 332 533 265 268 49 334 153 181 255 115 140 50-54 1535 695 840 1194 533 661 50 340 154 185 263 117 146 51 303 137 166 233 103 130 52 305 138 167 237 105 132 53 290 131 159 226 101 125 54 297 135 163 234 106 128 55-59 1402 633 769 1115 507 608 55 290 131 159 229 103 125 56 279 125 153 221 100 121 57 288 130 158 230 105 126 58 273 124 149 217 99 118 59 273 123 150 218 99 118 60-64 1276 571 705 1024 426 562 60 288 130 158 233 106 127 61 261 117 144 210 96 115 62 250 112 139 200 90 110 63 239 106 133 191 85 106 64 237 106 132 190 85 105 65-69 1104 485 619 895 391 503 65 248 110 138 201 90 112 66 226 100 126 183 80 102 67 224 98 125 181 79 102 68 198 87 111 159 69 90 39 209 90 118 171 73 98 70-74 801 335 466 652 269 383 70 183 79 104 150 64 86 71 163 69 94 132 56 76 72 160 67 93 130 54 76 73 145 59 87 118 47 71 74 149 61 89 122 49 73 75-79 585 232 353 476 183 293 75 137 55 82 112 44 68 76 128 51 77 104 41 64 77 118 47 71 96 37 59 78 107 42 65 87 33 54 79 95 37 58 77 29 48 80-84 308 113 194 250 89 161 80 86 33 53 70 26 44 81 63 24 39 50 18 32 82 57 21 36 46 16 29 83 53 19 34 43 15 28 84 50 17 33 41 14 27 85-89 165 55 110 138 44 94 85 44 15 28 36 12 24 86 38 13 25 32 10 21 87 33 11 22 27 9 19 88 28 9 19 23 7 16 89 23 7 16 20 6 14 90-94 69 20 48 60 17 43 90 19 6 13 16 5 12 91 16 5 11 14 4 10 92 13 4 9 11 3 8 93 11 3 8 10 3 7 94 10 3 7 9 3 6 95-99 27 8 19 23 6 17 95 8 2 6 7 2 5 96 6 2 5 6 1 4 97 5 1 4 4 1 3 98 4 1 3 3 1 2 99 3 1 2 3 1 2 100+ 8 2 6 7 2 5 1-4 2833 1439 1394 2209 1123 1086 5-13 6159 3125 3034 4883 2479 2404 14-17 2755 1406 1349 2207 1122 1085 18-24 4582 2202 2380 3664 1737 1926 18-21 2598 1266 1333 2079 1000 1079 22-24 1983 936 1047 1585 738 847 15-44 18598 8785 9813 14505 6789 7715 14+ 28307 13075 15233 22209 10162 12047 16+ 26983 12400 14583 21157 9628 11529 18+ 25552 11669 13883 20002 9040 10962 21+ 23577 10701 12877 18422 8274 10147 62+ 3793 1574 2219 3082 1263 1819 65+ 3067 1251 1816 2501 1003 1498 85+ 269 86 183 2229 70 158 MEDIAN AGE 27.8 26.4 29.0 27.5 26.1 28.8 Estimates of Civilian Population, Census-Level: U.S., 1989 All Classes and White ESTIMATES OF THE CIVILIAN RESIDENT POPULATION OF THE UNITED STATES: JULY 1, 1989 ALL CLASSES WHITE TOTAL MALE FEMALE TOTAL MALE FEMALE ALL AGES 246552 119467 127084 207667 101045 106622 0-4 18752 9598 9155 15050 7716 7335 0 3945 2020 1925 3163 1623 1541 1 3717 1904 1813 2983 1530 1453 2 3660 1872 1788 2931 1501 1429 3 3710 1898 1812 2983 1528 1455 4 3721 1904 1816 2989 1533 1457 5-9 18212 9321 8891 14628 7504 7124 5 3605 1844 1761 2895 1484 1411 6 3678 1883 1795 2959 1518 1441 7 3733 1910 1822 3000 1539 1462 8 3573 1831 1742 2874 1476 1398 9 3624 1853 1770 2900 1487 1412 10-14 16950 8689 8260 13574 6973 6601 10 3563 1826 1737 2846 1462 1384 11 3418 1751 1667 2740 1406 1334 12 3384 1735 1649 2712 1394 1318 13 3257 1668 1589 2608 1338 1270 14 3327 1708 1619 2668 1372 1296 15-19 17665 8959 8706 14229 7224 7006 15 3278 1681 1598 2619 1344 1275 16 3355 1718 1637 2672 1369 1303 17 3532 1812 1720 2829 1453 1376 18 3745 1891 1853 3031 1533 1498 19 3755 1857 1898 3079 1525 1554 20-24 18144 8870 9274 14935 7347 7588 20 3611 1769 1843 2957 1453 1504 21 3461 1689 1773 2841 1393 1448 22 3518 1715 1803 2899 1422 1477 23 3642 1779 1863 3001 1477 1524 24 3911 1919 1993 3237 1601 1635 25-29 21301 10515 10786 17803 8874 8929 25 4120 2029 2091 3429 1704 1725 26 4167 2053 2114 3480 1731 1748 27 4295 2117 2178 3588 1785 1802 28 4228 2086 2141 3545 1768 1778 29 4492 2229 2262 3761 1886 1875 30-34 21876 10847 11028 18373 9210 9163 30 4495 2228 2266 3755 1881 1874 31 4410 2186 2224 3710 1859 1851 32 4438 2202 2236 3729 1870 1859 33 4234 2094 2140 3556 1778 1778 34 4299 2137 2162 3623 1822 1802 35-39 19437 9562 9874 16482 8210 8272 35 4148 2051 2097 3504 1753 1751 36 3981 1961 2020 3378 1685 1694 37 3885 1909 1976 3295 1640 1655 38 3700 1812 1887 3149 1563 1586 39 3723 1829 1893 3156 1570 1586 40-44 16780 8196 8583 14465 7147 7317 40 3725 1822 1903 3171 1570 1602 41 3552 1738 1814 3065 1517 1548 42 3827 1876 1951 3352 1661 1691 43 2806 1362 1443 2414 1186 1228 44 2871 1398 1473 2462 1213 1249 45-49 13491 6571 6919 11646 5732 5914 45 2835 1380 1455 2437 1198 1239 46 3058 1489 1569 2668 1315 1353 47 2741 1332 1409 2353 1156 1198 48 2435 1188 1247 2107 1039 1068 49 2423 1182 1241 2080 1025 1055 50-54 11368 5503 5866 9783 4785 4998 50 2408 1162 1246 2061 1004 1057 51 2310 1121 1189 1990 976 1014 52 2207 1069 1139 1895 927 968 53 2209 1072 1137 1907 936 971 54 2234 1079 1155 1930 942 988 55-59 10725 5119 5605 9309 4479 4830 55 2102 1009 1092 1809 876 932 56 2076 995 1081 1796 868 928 57 2176 1039 1137 1886 908 978 58 2163 1027 1135 1886 902 984 59 2209 1049 1160 1933 925 1009 60-64 10867 5079 5788 9568 4498 5071 60 2229 1053 1176 1937 922 1015 61 2235 1053 1182 1970 933 1036 62 2114 984 1129 1858 870 988 63 2103 978 1125 1859 870 989 64 2187 1010 1176 1945 903 1042 65-69 10170 4631 5538 9029 4130 4899 65 2175 1001 1174 1921 888 1033 66 2045 935 1111 1812 832 981 67 2089 954 1135 1857 852 1005 68 1987 905 1082 1781 815 966 69 1874 837 1037 1657 743 914 70-74 8012 3464 4549 7193 3120 4074 70 1741 772 969 1552 690 862 71 1708 751 956 1541 680 861 72 1619 700 918 1457 632 824 73 1487 632 855 1338 571 767 74 1458 608 850 1306 546 760 75-79 6033 2385 3648 5430 2147 3282 75 1376 566 811 1237 510 727 76 1297 521 776 1165 468 697 77 1212 476 735 1089 428 661 78 1120 432 688 1009 389 620 79 1028 391 637 930 353 577 80-84 3728 1306 2422 3409 1189 2220 80 921 338 583 832 304 528 81 815 290 526 750 265 485 82 720 253 467 661 231 430 83 669 228 441 614 208 406 84 603 198 405 552 181 371 85-89 1962 588 1374 1791 531 1260 85 515 164 351 470 148 322 86 448 137 311 408 124 285 87 387 114 272 353 103 250 88 332 95 237 303 86 217 89 281 78 203 257 70 187 90-94 790 195 594 719 174 544 90 234 62 171 213 56 157 91 190 48 142 174 43 130 92 151 36 115 138 32 106 93 117 26 91 107 23 84 94 97 23 74 87 20 67 95-99 229 53 176 200 46 155 95 77 19 59 69 16 52 96 58 14 44 51 12 39 97 42 10 32 37 8 28 98 30 7 23 25 5 10 99 22 5 17 19 4 15 100+ 61 13 48 50 10 41 1-4 14807 7578 7229 11887 6093 5794 5-13 31834 16302 15532 25534 13105 12429 14-17 13492 6919 6574 10788 5538 5249 18-24 25644 12619 13025 21045 10405 10640 18-21 14572 7206 7367 11908 5904 6004 22-24 11072 5413 5659 9137 4501 4636 15-44 115202 56950 58252 96287 48011 48275 14+ 195965 93568 102397 167083 80225 86858 16+ 189359 90179 99181 161796 77508 84288 18+ 182473 86649 95824 156296 74687 81609 21+ 171361 81132 90229 147229 70175 77053 62+ 37387 15609 21778 33484 13990 19494 65+ 30984 12636 18348 27822 11347 16475 85+ 3042 850 2192 2761 761 2000 MEDIAN AGE 32.8 31.7 33.8 33.7 32.7 34.8 Black & Other and Black ESTIMATES OF THE CIVILIAN RESIDENT POPULATION OF THE UNITED STATES: JULY 1, 1989 BLACK AND OTHER BLACK TOTAL MALE FEMALE TOTAL MALE FEMALE ALL AGES 38884 18422 20462 30346 14281 16065 0-4 3702 1882 1820 2890 1469 1421 0 782 397 385 619 314 305 1 734 373 360 577 293 284 2 729 371 358 567 288 279 3 727 369 357 561 286 275 4 731 372 360 565 287 278 5-9 3584 1817 1767 2802 1423 1378 5 710 360 350 550 280 270 6 719 365 354 558 284 274 7 732 372 360 573 291 282 8 699 354 345 549 279 270 9 724 366 358 573 290 283 10-14 3375 1716 1659 2679 1362 1318 10 717 364 353 571 290 281 11 678 345 333 540 275 265 12 672 341 331 534 271 263 13 649 330 319 513 260 253 14 659 336 323 522 265 256 15-19 3435 1735 1701 2730 1369 1361 15 660 336 323 520 265 255 16 683 349 334 542 276 267 17 703 359 344 561 285 276 18 714 358 355 573 285 288 19 676 332 344 534 259 276 20-24 3210 1524 1686 2542 1188 1354 20 655 315 339 517 245 272 21 620 296 324 490 230 260 22 619 293 326 490 228 262 23 641 302 339 510 237 273 24 675 317 357 536 249 287 25-29 3498 1642 1857 2748 1278 1470 25 691 326 365 545 254 291 26 687 322 365 542 252 290 27 707 332 375 556 259 297 28 682 318 364 533 247 287 29 730 344 387 571 267 305 30-34 3503 1638 1865 2692 1246 1446 30 740 347 393 573 266 306 31 700 327 373 536 248 288 32 710 333 378 546 253 293 33 678 316 362 514 237 277 34 675 315 360 524 242 281 35-39 2954 1352 1602 2229 1008 1221 35 644 298 346 493 226 267 36 603 276 327 452 204 248 37 590 269 321 448 201 246 38 551 249 301 411 183 228 39 567 260 307 425 193 232 40-44 2315 1049 1266 1715 771 944 40 553 252 301 414 187 227 41 487 221 266 360 163 198 42 475 215 260 354 159 195 43 392 176 215 285 127 158 44 408 185 224 302 135 167 45-49 1845 839 1006 1392 623 769 45 397 182 215 297 135 163 46 390 174 215 295 130 165 47 387 177 211 295 132 162 48 328 149 178 246 110 136 49 343 157 186 259 117 143 50-54 1586 718 868 1222 544 679 50 347 158 190 267 119 148 51 320 145 175 245 108 136 52 312 142 171 240 106 133 53 302 136 166 234 104 130 54 304 137 167 237 106 131 55-59 1416 641 775 1116 508 608 55 293 133 160 228 104 125 56 280 137 153 219 100 119 57 290 131 159 230 105 126 58 277 125 151 219 100 119 59 276 124 151 219 100 119 60-64 1298 581 718 1035 467 567 60 292 131 160 234 107 127 61 266 120 146 212 97 115 62 256 114 142 203 92 111 63 244 108 136 194 86 107 64 242 107 134 192 86 106 65-69 1141 502 639 916 402 515 65 254 113 141 204 91 113 66 233 103 130 187 82 104 67 232 102 130 186 81 104 68 206 90 115 164 71 93 69 217 94 123 176 75 101 70-74 819 344 475 661 274 386 70 190 82 108 154 66 88 71 167 71 96 134 57 77 72 162 68 94 131 54 76 73 149 61 88 120 48 71 74 152 62 90 123 49 74 75-79 603 238 365 486 187 299 75 140 56 84 113 44 68 76 132 52 79 106 41 65 77 122 48 74 98 38 61 78 111 43 68 89 34 55 79 99 38 61 79 30 50 80-84 319 117 201 256 91 165 80 89 34 55 72 27 45 81 65 24 41 51 18 33 82 58 22 37 47 17 30 83 54 19 35 44 15 29 84 51 18 34 42 14 28 85-89 171 57 114 142 45 97 85 45 16 29 37 12 25 86 39 13 26 32 10 22 87 34 11 23 28 9 19 88 29 9 20 24 7 17 89 24 8 17 20 6 14 90-94 71 21 50 61 17 43 90 20 6 14 17 5 12 91 17 5 12 14 4 10 92 13 4 9 12 3 8 93 11 3 8 9 2 7 94 10 3 7 9 3 6 95-99 29 8 21 25 7 18 95 9 2 6 8 2 6 96 7 2 5 6 2 5 97 6 2 4 5 1 4 98 4 1 3 4 1 3 99 3 1 2 3 1 2 100+ 10 3 7 9 3 6 1-4 2920 1485 1435 2271 1155 1116 5-13 6300 3197 3103 4960 2520 2440 14-17 2705 1380 1324 2144 1090 1054 18-24 4599 2214 2386 3649 1732 1917 18-21 2664 1301 1363 2114 1019 1095 22-24 1935 913 1022 1536 1714 822 15-44 18916 8939 9977 14657 6860 7796 14+ 28882 13343 15539 22497 10293 12204 16+ 27563 12670 14893 21456 9763 11693 18+ 26177 11962 14215 20353 9202 11150 21+ 24133 10957 13176 18729 8413 10316 62+ 3903 1619 2284 3143 1289 1854 65+ 3162 1289 1873 2555 1025 1529 85+ 281 89 192 236 72 165 MEDIAN AGE 28.1 26.6 29.3 27.8 26.3 29.1 Civilian Pop'n. by Sex, Age, & Geographic Region: U.S., 1989 Civilian Population* by Sex, Age, and Geographic Region: United States, July 1, 1989 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) *The NHDS used the civilian noninstitutionalized population to calculate hospital utilization rates from 1965 through 1980. Beginning in 1981, the civilian resident population has been used to calculate rates. If you have purchased NHDS tapes for years before 1981 and calculated rates using the civilian noninstitutionalized population provided in the documentation, these rates will have to be adjusted to be comparable to 1985 rates using the civilian resident population. _____________________________________________________________________________ United North- Age and Sex States east Midwest South West _____________________________________________________________________________ Number in Thousands Both Sexes All Ages 246,552 50,658 60,007 84,653 51,234 0-4 years 18,752 3,573 4,382 6,472 4,325 5-14 years 35,162 6,525 8,659 12,370 7,607 15-19 years 17,665 3,494 4,379 6,288 3,503 20-24 years 18,144 3,778 4,445 6,243 3,678 25-29 years 21,301 4,284 5,208 7,253 4,556 30-34 years 21,876 4,329 5,310 7,343 4,894 35-44 years 36,216 7,417 8,619 12,215 7,966 45-54 years 24,859 5,380 6,008 8,480 4,992 55-59 years 10,725 2,417 2,610 3,657 2,041 60-64 years 10,867 2,522 2,646 3,691 2,007 65-74 years 18,182 4,047 4,436 6,302 3,397 75-84 years 9,761 2,195 2,474 3,353 1,738 85 years & over 3,042 699 830 985 528 Under 1 year 3,945 764 909 1,351 921 Under 17 years 60,547 11,382 14,672 21,238 13,255 65 years & over 30,984 6,941 7,740 10,640 5,663 Males All ages 119,467 24,235 29,169 40,808 25,256 0-4 years 9,598 1,829 2,245 3,309 2,215 5-14 years 18,011 3,342 4,441 6,333 3,895 15-19 years 8,959 1,769 2,227 3,186 1,777 20-24 years 8,870 1,838 2,191 3,022 1,819 25-29 years 10,515 2,097 2,596 3,542 2,281 30-34 years 10,847 2,123 2,652 3,610 2,463 35-44 years 17,759 3,593 4,248 5,945 3,973 45-54 years 12,074 2,585 2,938 4,085 2,468 55-59 years 5,119 1,146 1,262 1,723 989 60-64 years 5,079 1,167 1,244 1,705 962 65-74 years 8,095 1,764 1,973 2,795 1,564 75-84 years 3,692 799 925 1,271 697 85 years & over 850 185 227 281 156 Under 1 year 2,020 391 466 691 472 Under 17 years 31,006 5,828 7,523 10,869 6,786 65 years & over 12,636 2,748 3,125 4,347 2,416 Females All Ages 127,084 26,422 30,839 43,845 25,978 0-4 years 9,155 1,744 2,137 3,163 2,111 5-14 years 17,151 3,182 4,219 6,038 3,712 15-19 years 8,706 1,725 2,152 3,103 1,727 20-24 years 9,274 1,940 2,254 3,221 1,860 25-29 years 10,786 2,187 2,613 3,711 2,275 30-34 years 11,028 2,206 2,658 3,733 2,432 35-44 years 18,458 3,824 4,371 6,269 3,993 45-54 years 12,785 2,795 3,070 4,396 2,524 55-59 years 5,605 1,271 1,348 1,934 1,053 60-64 years 5,788 1,355 1,402 1,986 1,045 65-74 years 10,087 2,284 2,463 3,507 1,833 75-84 years 6,069 1,396 1,550 2,082 1,041 85 years & over 2,192 513 603 704 372 Under 1 year 1,925 373 443 660 449 Under 17 years 29,540 5,554 7,149 10,369 6,468 65 years & over 18,348 4,193 4,615 6,293 3,247 _____________________________________________________________________________ *The NHDS used the civilian noninstitutionalized population to calculate hospital utilization rates from 1965 through 1980. Beginning in 1981, the civilian resident population has been used to calculate rates. If you have purchased NHDS tapes for years before 1981 and calculated rates using the civilian noninstitutionalized population provided in the documentation, these rates will have to be adjusted to be comparable to 1989 rates using the civilian resident population. Estimates of the Both Sexes Civilian Population of States ESTIMATES OF THE BOTH SEXES CIVILIAN POPULATION OF STATES (IN THOUSANDS) AGE TOTAL 0-4 5-14 20-24 20-24 25-29 NORTHEAST 50478 3488 6458 3642 3917 4325 NEW ENGLAND 12915 893 1608 935 1037 1171 MIDDLE ATLANTIC 39563 2595 4850 2707 2880 3154 MIDWEST 59739 4362 8581 4498 4599 5301 EAST NORTH CENTRA 42052 3056 6038 3218 3276 3723 WEST NORTH CENTRA 17686 1306 2542 1280 1323 1577 SOUTH 83791 6403 12247 6396 6405 7300 SOUTH ATLANTIC 41864 3036 5665 3098 3168 3572 EAST SOUTH CENTRA 15248 1087 2300 1225 1195 1329 WEST SOUTH CENTRA 26678 2281 4281 2074 2042 2399 WEST 50118 4203 7369 3530 3702 4557 MOUNTAIN 13218 1138 2109 981 991 1196 PACIFIC 36905 2065 5260 2550 2711 3361 U.S. 244125 18456 34655 18066 18623 21483 AGE 30-34 35-44 45-54 55-59 60-64 64-74 NORTHEAST 4254 7237 5246 2490 2554 4028 NEW ENGLAND 1124 1895 1293 603 619 1001 MIDDLE ATLANTIC 3130 5342 3953 1887 1935 3028 MIDWEST 5237 8337 5865 2571 2676 4375 EAST NORTH CENTRA 3695 5894 4166 1893 1899 3055 WEST NORTH CENTRA 1542 2443 1697 778 777 1320 SOUTH 7232 11605 8240 3692 3696 6171 SOUTH ATLANTIC 3542 5973 4277 1956 2027 3346 EAST SOUTH CENTRA 1280 2099 1505 668 652 1118 WEST SOUTH CENTRA 2410 3732 2458 1066 1018 1707 WEST 4821 7600 4773 2043 2007 3322 MOUNTAIN 1234 1926 1194 511 497 876 PACIFIC 3587 5674 3579 1532 1510 2446 U.S. 21543 34979 24125 10895 10933 17897 AGE 75-84 85+ 0 0-16 65+ NORTHEAST 2157 682 745 11300 6867 0 NEW ENGLAND 550 186 191 2844 1737 0 MIDDLE ATLANTIC 1607 496 554 8455 5130 0 MIDWEST 2427 810 901 14652 7612 0 EAST NORTH CENTRA 1617 520 635 10327 5191 0 WEST NORTH CENTRA 811 290 266 4325 2421 0 SOUTH 3257 946 1326 21143 10375 0 SOUTH ATLANTIC 1718 484 640 9893 5549 0 EAST SOUTH CENTRA 610 181 223 3869 1909 0 WEST SOUTH CENTRA 929 281 462 7381 2917 0 WEST 1680 511 887 12911 5512 0 MOUNTAIN 436 123 235 3623 1436 0 PACIFIC 1243 388 653 9288 1436 0 U.S. 9521 2948 3859 60005 30367 0 Estimates of the Male Civilian Population of States ESTIMATES OF THE MALE CIVILIAN POPULATION OF STATES (IN THOUSANDS) AGE TOTAL 0-4 5-14 20-24 20-24 25-29 NORTHEAST 24133 1785 3308 1843 1906 2117 NEW ENGLAND 6201 457 825 471 505 575 MIDDLE ATLANTIC 17932 1328 2483 1371 1401 1542 MIDWEST 29022 2235 4400 2286 2268 2642 EAST NORTH CENTRA 42052 1566 3096 1635 1615 1851 WEST NORTH CENTRA 17686 669 1304 651 653 790 SOUTH 83791 3274 6269 3238 3103 3565 SOUTH ATLANTIC 41864 1553 2899 1562 1518 1725 EAST SOUTH CENTRA 15248 555 1180 624 579 648 WEST SOUTH CENTRA 26678 1166 2191 1052 1004 1192 WEST 50118 2152 3773 1789 1831 2281 MOUNTAIN 13218 583 1079 495 485 600 PACIFIC 36905 1570 2694 1294 1345 1681 U.S. 244125 9446 17750 9156 9106 10605 AGE 30-34 35-44 45-54 55-59 60-64 64-74 NORTHEAST 2084 3501 2520 1179 1178 1750 NEW ENGLAND 555 929 628 283 287 438 MIDDLE ATLANTIC 1529 2572 1892 891 891 1313 MIDWEST 2614 4103 2868 1290 1255 1939 EAST NORTH CENTRA 1839 2896 2035 911 889 1346 WEST NORTH CENTRA 775 1208 833 378 365 593 SOUTH 3553 5738 3968 1737 1703 2728 SOUTH ATLANTIC 1724 2891 2056 914 927 1482 EAST SOUTH CENTRA 630 1017 719 313 299 485 WEST SOUTH CENTRA 1198 1830 1193 510 477 762 WEST 2424 3785 2359 983 960 1527 MOUNTAIN 626 959 592 247 239 409 PACIFIC 1798 2826 1768 741 721 1118 U.S. 10675 17128 11714 5194 5096 7945 AGE 75-84 85+ 0 0-16 65+ NORTHEAST 781 181 382 5785 2712 0 NEW ENGLAND 197 47 98 1458 682 0 MIDDLE ATLANTIC 584 134 284 4328 2031 0 MIDWEST 902 222 462 7512 3063 0 EAST NORTH CENTRA 597 141 325 5293 2084 0 WEST NORTH CENTRA 305 80 136 2218 979 0 SOUTH 1230 272 678 10819 4230 0 SOUTH ATLANTIC 654 140 328 5061 2276 0 EAST SOUTH CENTRA 226 52 114 1982 763 0 WEST SOUTH CENTRA 350 80 236 3776 1192 0 WEST 671 149 455 6610 2348 0 MOUNTAIN 179 37 120 1854 625 0 PACIFIC 492 112 335 4756 1723 0 U.S. 3584 825 1976 30726 12353 0 Estimates of the Female Civilian Population of States ESTIMATES OF THE FEMALE CIVILIAN POPULATION OF STATES (IN THOUSANDS) AGE TOTAL 0-4 5-14 20-24 20-24 25-29 NORTHEAST 26345 1702 3150 1799 2011 2208 NEW ENGLAND 6714 435 783 463 532 597 MIDDLE ATLANTIC 19631 1267 2367 1336 1479 1612 MIDWEST 30716 2127 4180 2212 2331 2659 EAST NORTH CENTRA 21635 1491 2942 1582 1661 1872 WEST NORTH CENTRA 9082 636 1238 629 670 787 SOUTH 43413 3129 5977 3158 3304 3735 SOUTH ATLANTIC 21819 1483 2766 1536 1650 1848 EAST SOUTH CENTRA 7921 531 1121 601 616 680 WEST SOUTH CENTRA 13673 1115 2091 1021 1038 1207 WEST 25428 2051 3596 1741 1871 2276 MOUNTAIN 6683 555 1030 485 506 595 PACIFIC 18745 1495 2566 1256 1365 1680 U.S. 125902 9009 16904 8909 9518 10879 AGE 30-34 35-44 45-54 55-59 60-64 64-74 NORTHEAST 2170 3736 2726 1311 1376 2278 NEW ENGLAND 569 967 665 316 332 563 MIDDLE ATLANTIC 1601 2770 2062 995 1044 1715 MIDWEST 2623 4234 2998 1381 1421 2436 EAST NORTH CENTRA 1856 2998 2133 982 1009 1709 WEST NORTH CENTRA 767 1235 864 399 412 728 SOUTH 3679 6067 4272 1954 1993 3443 SOUTH ATLANTIC 1817 3082 2221 944 1100 1865 EAST SOUTH CENTRA 650 1082 786 354 352 632 WEST SOUTH CENTRA 1211 1903 1265 558 541 946 WEST 2397 3815 2414 1055 1047 1795 MOUNTAIN 608 967 602 264 259 467 PACIFIC 1789 2848 1812 791 789 1328 U.S. 10868 17852 12410 5701 5837 9953 AGE 75-84 85+ 0 0-16 65+ NORTHEAST 1376 501 364 5514 4155 0 NEW ENGLAND 353 140 93 1387 1055 0 MIDDLE ATLANTIC 1023 361 271 4128 3100 0 MIDWEST 1525 588 439 7140 4549 0 EAST NORTH CENTRA 1020 378 310 5033 3107 0 WEST NORTH CENTRA 505 210 129 2106 1443 0 SOUTH 2027 674 648 10324 6144 0 SOUTH ATLANTIC 1064 344 312 4831 3273 0 EAST SOUTH CENTRA 384 129 109 1887 1146 0 WEST SOUTH CENTRA 579 200 227 3605 1725 0 WEST 1009 361 432 6301 3165 0 MOUNTAIN 258 86 114 1770 811 0 PACIFIC 751 276 218 4531 2354 0 U.S. 5937 2124 1883 29279 18014 0 DISCHARGE POPULATIONS FOR NHDS - 1988 DISCHARGE POPULATION FOR NHDS - 1988 RACE AGE White Black Natv Asian Other Unknown TOTAL GROUPS Amer MALES Nwbn 1,217,920 274,646 4,181 39,745 87,785 257,649 1,881,926 < 1 266,208 71,601 4,121 11,364 29,283 59,545 442,122 1- 4 296,178 88,017 3,262 7,368 21,326 38,379 454,530 5-14 417,764 77,807 2,724 10,779 22,553 57,523 589,150 15-24 670,369 142,068 10,710 5,565 24,368 85,357 938,437 25-34 846,968 203,559 3,700 9,849 34,274 109,401 1,207,751 35-44 956,791 213,880 6,787 17,236 28,846 115,399 1,338,939 45-54 1,006,034 172,490 7,376 16,024 26,891 111,724 1,340,539 55-64 1,505,851 162,053 2,294 18,842 31,029 160,214 1,880,283 65-74 1,896,540 168,154 2,215 20,901 23,636 194,922 2,306,368 > 75 1,763,799 165,586 2,768 15,012 24,686 171,995 2,143,846 ALL MALES 10,844,422 1,739,861 50,138 172,685 354,677 1,362,108 14,523,891 FEMALES Nwbn 1,203,657 262,030 4,834 39,068 81,756 259,264 1,850,609 < 1 199,272 60,159 3,455 6,860 19,532 42,525 331,803 1- 4 202,966 58,011 1,152 4,113 19,462 37,908 323,612 5-14 340,300 65,861 224 3,431 19,452 39,945 469,213 15-24 1,791,593 545,743 13,454 31,793 108,378 301,742 2,792,703 25-34 2,671,670 524,477 6,325 69,376 127,847 411,067 3,810,762 35-44 1,322,505 264,946 7,368 31,757 47,717 170,655 1,844,948 45-54 1,084,687 179,311 7,936 21,557 31,017 132,028 1,456,536 55-64 1,380,426 200,511 3,733 18,606 28,800 146,688 1,778,764 65-74 1,921,490 238,366 3,598 18,574 30,236 184,545 2,396,809 > 75 2,780,233 226,197 2,268 13,992 31,353 245,202 3,299,245 ALL FEMALES 14,898,799 2,625,612 54,347 259,127 545,550 1,971,569 20,355,004 GRAND TOTAL 25,743,221 4,365,473 104,485 431,812 900,227 3,333,677 34,878,895 DISCHARGE POPULATION FOR NHDS - 1989 RACE AGE White Black Natv Asian Other Unknown TOTAL GROUPS Amer MALES Nwbn 1,266,843 282,445 6,045 53,705 80,282 300,142 1,989,462 < 1 254,588 98,886 1,632 11,390 15,063 89,357 470,916 1- 4 317,612 93,025 2,652 5,448 12,707 66,164 497,608 5-14 371,082 82,794 1,524 7,267 17,545 71,826 552,038 15-24 591,060 132,359 3,235 9,518 17,807 92,358 846,337 25-34 815,632 221,089 4,707 12,757 20,153 129,770 1,204,108 35-44 940,038 241,202 7,259 11,800 22,012 132,306 1,354,617 45-54 1,009,913 181,039 4,533 16,345 24,439 122,626 1,358,895 55-64 1,445,207 154,771 3,958 15,054 24,911 176,659 1,820,560 65-74 1,859,256 142,296 4,971 24,979 16,185 227,627 2,275,314 > 75 1,790,144 159,984 2,930 21,559 13,712 214,432 2,202,761 ALL MALES 10,661,375 1,789,890 43,446 189,822 264,816 1,623,267 14,572,616 FEMALES Nwbn 1,189,603 286,173 4,513 43,018 65,609 306,103 1,895,019 < 1 187,930 59,627 464 7,579 13,221 51,145 319,966 1- 4 204,366 57,733 2,302 5,575 8,075 43,802 321,853 5-14 296,407 67,601 2,243 3,797 10,369 54,545 434,962 15-24 1,685,188 572,331 12,037 34,180 87,031 380,363 2,771,130 25-34 2,590,337 513,311 14,326 77,896 103,630 465,142 3,764,642 35-44 1,328,294 271,572 6,235 34,847 33,975 232,517 1,907,440 45-54 1,074,056 199,570 3,949 15,314 18,698 141,689 1,453,276 55-64 1,250,835 185,798 3,605 14,778 20,969 162,780 1,638,765 65-74 1,896,584 215,262 5,596 13,457 23,042 248,637 2,402,578 > 75 2,769,087 240,775 5,442 12,939 22,782 297,927 3,348,952 ALL FEMALES 14,472,687 2,669,753 60,712 263,380 407,401 2,384,650 20,258,583 GRAND TOTAL 25,134,062 4,459,643 104,158 453,202 672,217 4,007,917 34,831,199 DISCHARGE POPULATION FOR NHDS - 1990 RACE AGE White Black Natv Asian Other Unknown TOTAL GROUPS Amer MALES Nwbn 1,189,821 270,829 9,005 53,468 81,324 377,492 1,981,939 < 1 249,689 82,479 1,485 8,554 13,504 102,097 457,808 1- 4 239,318 75,129 1,610 10,194 7,867 69,375 403,493 5-14 316,313 81,256 835 8,633 8,299 85,832 501,168 15-24 534,521 123,622 3,207 8,226 15,354 130,950 815,880 25-34 782,581 194,023 3,009 12,785 22,590 188,707 1,203,695 35-44 862,804 215,812 6,686 11,692 19,618 193,586 1,310,198 45-54 936,898 155,068 2,930 17,774 19,801 228,765 1,361,236 55-64 1,304,446 156,526 5,128 19,497 21,185 247,466 1,754,248 65-74 1,740,424 146,452 7,441 23,760 19,131 331,255 2,268,463 > 75 1,700,675 133,280 5,148 21,929 16,622 325,761 2,203,415 ALL MALES 9,857,490 1,634,476 46,484 196,512 245,295 2,281,286 14,261,543 FEMALES Nwbn 1,161,946 249,950 5,191 47,769 70,457 351,837 1,887,150 < 1 193,078 60,886 2,017 6,864 9,960 60,843 333,648 1- 4 183,505 55,468 2,540 7,624 5,881 60,218 315,236 5-14 261,710 52,771 591 5,232 8,717 71,193 400,214 15-24 1,594,432 520,153 9,783 35,035 80,797 479,442 2,719,642 25-34 2,425,300 487,352 8,933 83,636 99,103 656,770 3,761,094 35-44 1,320,977 273,105 6,711 35,942 34,492 317,054 1,988,281 45-54 1,027,553 177,634 3,864 17,837 19,170 224,963 1,471,021 55-64 1,173,610 185,666 3,288 16,413 19,582 259,310 1,657,869 65-74 1,822,025 209,984 4,461 18,644 18,799 347,067 2,420,980 > 75 2,705,997 224,537 5,896 18,433 23,499 461,988 3,440,350 ALL FEMALES 13,870,133 2,497,506 53,275 293,429 390,457 3,290,685 20,395,485 GRAND TOTAL 23,727,623 4,131,982 99,759 489,941 635,752 5,571,971 34,657,028 ICD-9-CM PROCEDURES NOT CODED ICD-9-CM Procedures Not Coded for the 1988 NHDS UHDDS CLASS 4 PROCEDURES NOT CODED BY THE NHDS 08.19 87.43-87.49 16.21 87.69 18.01 87.79 18.11 87.85-87.89 18.19 87.92 21.21 87.95-87.99 21.29 88.09 22.19 88.16-88.31 24.19 88.33 25.09 88.35 25.91 88.37 26.19 88.39 27.29 89.01-89.13 27.91 89.15-89.16 28.19 89.26-89.31 29.19 89.33-89.39 31.48-31.49 89.45-89.53 41.38-41.39 89.55-89.59 42.29 89.66 44.19 89.7 45.19 90.01-91.99 45.28-45.29 93.01-93.25 48.23 93.27-93.28 48.29 93.31-93.39 49.21 93.42-93.44 49.29 93.61-93-91 49.41 93.94 58.29 93.96 61.19 93.99-94.23 64.19 94.25 64.91 94.29-95.03 64.94 95.05-95.11 69.92 95.14-95.15 70.21 95.31-95.49 73.91-73.92 96.09-96.19 75.35 96.26-96.28 85.19 96.34-97.04 86.19 97.14-97-69 86.92 97.72-97.89 87.09-87.12 99.02-99.24 87.16-87.17 99.26-99.59 87.22-87.29 99.71-99.79 87.36-87.37 99.82-99.99 87.39 ICD-9-CM Procedures Not Coded for the 1989 NHDS ICD-9-CM Procedure Codes Not Coded for the 1989 NHDS 87.09-87.12 93.01-93.25 87.16--87.17 93.27-93.28 87.22-87.29 93.31-93.39 87.39 93.61-93.89 87.43-87.49 94.01-94.23 87.85-87.89 94.29-94.59 87.92 95.01-95.03 87.95-87.99 95.05-95.09 88.09 95.14-95.15 88.16-88.19 95.31-95.48 88.21-88.29 96.11-96.19 88.31 96.26-96.28 88.33 96.34-96.48 88.35 96.51-96.59 88.37 96.6 88.39 97.01-97.04 89.01-89.13 97.14-97.69 89.15-89.16 97.72-97.87 89.26-89.31 97.89 89.33-89.39 99.12-99.14 89.7-89.8 99.16-99.18 90.01-91-99 99.26-99.59 APPENDIX Appendix A - Definition of Terms Terms Relating to Hospitals and Hospitalization Hospitals--Short stay hospitals or hospitals whose specialty is general (medical or surgical), or children's general. Hospitals must have six beds or more staffed for patients use. Federal hospitals and hospital units of institutions are not included. Type of ownership of hospital--The type of organization that controls and operates the hospital. Hospitals are grouped as follows. Not for Profit--Hospitals operated by a church or another not for profit organization. Government--Hospitals operated by State and local government. Proprietary--Hospitals operated by individuals, partnerships, or corporations for profit. Patient--A person who is formally admitted to the inpatient service of a short-stay hospital for observation, care, diagnosis, or treatment, or by birth. Discharge--The formal release of a patient by a hospital; that is, the termination of a period of hospitalization by death or by disposition to place of residence, nursing home, or another hospital. The terms "dis- charges" and "patients discharged" are used synonymously. Discharge rate--The ratio of the number of hospital discharges during the year to the number of persons in the civilian population on July 1 of that year. Days of care--The total number of patient days accumulated at time of discharge by patients discharged from short-stay hospitals during a year. A stay of less than one day (patient admission and discharge on the same day) is counted as one day in the summation of total days of care. For patients admitted and discharged on different days, the number of days of care is computed by counting all days from (and including) the date of admission to (but not including) the date of discharge. Rate of days of care--The ratio of the number of patient days accumulated at time of discharge to the number of persons in the civilian population on July 1 of that year. Average length of stay--The total number of days of care accumulated at time of discharge by patients discharged during the year, divided by the number of patients discharged. Terms Relating to Diagnoses and Procedures Discharge diagnoses--One or more diseases or injuries (or some factor that influences health status and contact with health services that is not itself a current illness or injury) listed by the attending physician on the medical record of a patient. In the NHDS, discharge (or final) diagnoses listed on the face sheet (summary sheet) of the medical record are transcribed in the order listed. Each sample discharge is assigned a maximum of seven five- digit codes according to ICD-9-CM (2). Principal diagnosis--The condition established after study to be chiefly responsible for occasioning the admission of the patient to the hospital for care. First-listed diagnosis--The coded diagnosis identified as the principal diagnosis or listed first on the face sheet of the medical record if the principal diagnosis cannot be identified. The number of first-listed diag- noses is equivalent to the number of discharges. Procedure--One or more surgical or nonsurgical operations, procedures, or special treatments listed by the physician on the medical record. In the NHDS, all terms listed on the face sheet (summary sheet) of the medical record under the caption "operation," "operative procedures," "operations and /or special treatment," and the like, are transcribed in the order listed. A maximum of four procedures are coded. Rate of procedures--The ratio of the number of all-listed procedures during a year to the number of persons in the civilian population on July 1 of that year determines the rate of procedures. Demographic Terms Age--Refers to the age of the patient on the birthday prior to admission to the hospital inpatient service. Population--Civilian population is the resident population excluding members of the Armed Forces. Geographic regions--Hospitals are classified by location in one of the four geographic regions of the United States corresponding to those used by the U.S. Bureau of the Census: Region States included Northeast..............Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, and Pennsylvania Midwest.............. Michigan, Ohio, Illinois, Indiana, Wisconsin, Minnesota, Iowa, Missouri, North Dakota, South Dakota, Nebraska, and Kansas South............... Delaware, Maryland, District of Columbia, Virginia, West Virginia, North Carolina, South Carolina, Georgia, Florida, Kentucky, Tennessee, Alabama, Mississippi, Arkansas, Louisiana, Oklahoma, and Texas West................ Montana, Idaho, Wyoming, Colorado, New Mexico, Arizona, Utah, Nevada, Washington, Oregon, California, Hawaii, and Alaska Appendix B - Civ Pop by Sex,Age,Geographic Region,Race, July 1990 Civilian Population* by Sex, Age, Geographic Region and Race: United States, July 1, 1990 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) At the time that this document was released, the estimates for the Civilian Resident population for 1990 were not available from the Bureau of the Census. Users of the 1990 data tape and its documentation will be provided with the estimates when they become available. This will probably be by early next spring, perhaps in March. Appendix C - ICD-9-CM Addenda, 1989 Diagnosis Codes Current Previous Codes(s) Effective Code(s) Assignment October 1 Assignment ____________________________________________________ 042.0-042.9 1986 279.19 043.0-043.9 1986 279.19 044.0-044.9 1986 279.19 088.81, 088.89 1989 088.8 345.00-345.01 1989 345.0 345.10-345.11 1989 345.1 345.40-345.41 1989 345.4 345.50-345.51 1989 345.5 345.60-345.61 1989 345.6 345.70-345.71 1989 345.7 345.80-345.81 1989 345.8 345.90-345.91 1989 345.9 403.00-403.01 1989 403.0 403.10-403.11 1989 403.1 403.90-403.91 1989 403.9 404.00-404.03 1989 404.0 404.10-404.13 1989 404.1 404.90-404.93 1989 404.9 410.00-410.02 1989 410.0 410.10-410.12 1989 410.1 410.20-410.22 1989 410.2 410.30-410.32 1989 410.3 410.40-410.42 1989 410.4 410.50-410.52 1989 410.5 410.60-410.62 1989 410.6 410.70-410.72 1989 410.7 410.80-410.82 1989 410.8 410.90-410.92 1989 410.9 411.81 1989 410.9 411.89 1989 411.8 429.71 1989 410.0-410.9 429.79 1989 410.0-410.9 493.20 1989 493.90 493.21 1989 493.91 518.81 1987 799.1 518.82-518.89 1987 518.8 651.30--651.31, 651.33 1989 651.00-651.01, 651.03 651.40-651.41, 651.43 1989 651.10-651.11, 651.13 651.50-651.51, 651.53 1989 651.20-651.21, 651.23 651.60-651.61, 651.63 1989 651.80-651.81, 651.83 759.81-759.89 1989 759.8 764.00-764.09 1988 764.0 764.10-764.19 1988 764.1 764.20-764.29 1988 764.2 764.90-764.99 1988 764.9 765.00-765.09 1988 765.0 765.10-765.19 1988 765.1 795.8 1986 795.7 996.51-996.59 1987 996.5 996.60 996.69 1989 996.6 996.70-996.79 1989 996.7 996.80-996.89 1987 996.8 V30.00-V30.01 1989 V30.0 V31.00-V31.01 1989 V31.0 V32.00-V32.01 1989 V32.0 V33.00-V33.01 1989 V33.0 V34.00-V34.01 1989 V34.0 V35.00-V35.01 1989 V35.0 V36.00-V36.01 1989 V36.0 V37.00-V37.01 1989 V37.0 V39.00-V39.01 1989 V39.0 Procedure Codes Current Previous Code(s) Effective Code(s) Assignment October 1 Assignment ____________________________________________________________ 03.90 1987 03.99 (Insertion of Catheter) 11.75 1989 11.79 11.76 1989 11.62 20.96-20.98 1986 20.95 22.12 1988 22.11 26.12 1988 26.11 31.45 1988 31.43-31.44 31.95 1989 31.75 32.01 1989 32.0 32.09 1989 32.0 32.28 1989 32.29 33.27 1987 33.22+33.27 33.28 1987 33.27 33.29 1987 33.28-33.29 35.84 1988 35.82 35.96 1986 35.03 36.00-36.03 1986 36.0 36.04 1986 39.97 36.05 1987 36.01* 36.09 1986 36.0 37.26-37.27 1988 37.29 37.34 1988 37.33 37.70 1987 (Leads/Device) 37.70 37.71-37.72 (Leads Only) 1987 (Leads/Device) 37.74 37.73 (Leads Only) 1987 (Leads/Device) 37.73 37.74 (Leads Only) 1987 (Leads/Device) 37.76 37.75 (Leads Only) 1987 (Leads/Device) 37.89 37.76 (Leads Only) 1987 (Leads/Device) 37.81 37.77 (Leads Only) 1987 (Leads/Device) 37.83-37.84 37.78 1987 37.71-37.72 37.79 1987 86.09 *Before October 1987, contents of current code 36.05 would have been assigned to 36.0. 37.80 (Device only) 1987 (Leads/Device) 37.73-37.77 37.81 (Device only) 1987 (Leads/Device) 37.73-37.77 37.82 (Device only) 1987 (Leads/Device) 37.73-37.77 37.83 (Device only) 1987 (Leads/Device) 37.73-37.77 37.85-37.87 1987 37.85 37.89 1987 37.86+37.89 37.94 1986 37.99 38.22 1986 38.29 38.44 Abdominal Aorta Only 1986 38.44(Entire Aorta) 38.45 Thoracic Aorta Added 1986 38.44-38.45 38.95 1989 38.93 39.65 1988 39.61 41.00-41.03 1988 41.0 42.25 1988 42.24 42.33 1989 42.32, 42.39 43.11 1989 43.1 43.19 1989 43.1, 43.2 43.41 1989 43.41, 43.49 44.21 1986 44.2 44.22 1986 44.99 44.29 1986 44.2 44.43 1989 43.49, 45.32 44.44 1989 38.86 44.49 1989 43.0 44.93-44.94 1986 44.99 45.16 1988 45.14 (45.15 before 1987) 45.30 1988 45.31, 45.32 45.42 1988 45.41 45.43 1989 45.49 45.75 (Hartmann Resection 1988 48.66(Code Deleted) Added) 45.95 1987 45.93 46.32 1989 46.39 46.85 1989 46.99 49.31 1989 49.3 49.39 1989 49.3 51.10 1989 51.97 51.11 1989 51.11, 51.97 51.14 1989 51.12 51.15 1989 51.97 51.64 1989 51.69 51.84-51.88 1989 51.97 51.97 1986 52.91, 51.99 or 51.82 51.98 1986 51.99 52.13 1989 51.97, 52.91 52.14 1989 52.11 52.21 1989 52.2 52.22 1989 52.2 52.93 1989 52.93-52.91 52.94 1989 52.09 52.97 1989 52.91 52.98 1989 52.91 52.99 1989 52.93, 52.94, 52.99 54.24 1987 54.23 55.03-55.04 1986 55.02 56.33-56.34 1987 56.33 56.35 1987 45.12 57.17-57.18 1989 57.21 57.19 1989 57.19 57.21 1989 57.21 57.22 1989 57.22, 57.82 58.93 1986 64.95 59.96 1986 64.95 64.97 1986 64.95 68.15 1987 68.14 68.16 1987 68.13 77.56 1989 77.89, 78.49, 81.18 77.57 1989 77.89, 80, 48, 81.18, 83.85,77.58, 19, 89, 77.59, 81.18 78.90* 1987 78.40 78.91* 1987 78.41 78.92* 1987 78.42 78.93* 1987 78.43 78.94* 1987 78.44 78.95* 1987 78.45 78.96* 1987 78.46 78.97* 1987 78.47 78.98* 1987 78.48 78.99* 1987 78.49 80.50-80.59 1986 80.5 81.03 1989 81.02 81.04-81.05 1989 81.03, 81.04, 81.05 81.06-81.07 1989 81.06, 81.07 81.08 1989 81.06, 81.07, 81.08 81.09 1989 81.08 81.40 1989 81.69 81.51 1989 81.51, 81.59 81.52 1989 81.61, 81.62, 81.63, 81.53 1989 81.51, 81.59, 81.61 81.54-81.55 1989 81.41 81.56 1989 81.48 81.57 1989 81.31, 81.39 81.59 1989 81.39 *Codes 78.90-78.99 were retitled as "Insertion of one growth stimulator" in October 1987; the previous contents of codes 78.90-78.99 were reassigned to codes 78.40-78.49. 81.72 1989 81.79 81.73-81.74 1989 81.86 81.75 1989 81.87 81.79 1989 81.79, 81.87 81.80 1989 81.81 85.95 1987 85.99 85.96 1987 85.99 86.06 1987 86.09 86.27 1986 86.22-86.23 86.28 1988 86.22 86.93 1987 86.89 88.90 1986 88.39 88.91 1986 89.15 88.92 1986 89.39 88.93 1986 89.15 88.94 1986 89.39 88.95 1986 89.29 88.97 1989 88.90 88.98 1989 88.90 88.99 1986 89.39 89.10 1989 89.15 89.17-89.18 1988 89.15 89.19 1989 89.15 93.90 1988 93.92 94.61-94.69 1989 94.25 96.6 1986 96.35 97.05 1989 51.97 98.51-98.52 1989 59.96 98.59 1989 59.96 99.15 1986 99.29 99.71-99.79* 1988 99.07 99.85 1987 93.35 99.86 1987 93.39 99.88 1988 99.83 *Codes 99.71-99.79 were deleted in October 1987; their contents were elsewhere. In October 1988 revision, codes 99.71-9979 were read "Therapeutic apheresis." Appendix D - ICD-9-CM Procedures Not Coded for the 1990 NHDS APPENDIX D ICD-9-CM Procedures Not Coded for the 1990 NHDS 87.09, 87.11, 87.12, 87.16-87.17, 87.22-87.29, 87.39, 87. 43- 87.49, 87.85, 87.89, 87.92, 87.95, 87.99, 88.09, 88.16, 88.19, 88.21-88.29, 88.31, 88.33, 88.35, 88.37, 88.39, 89.01-89.09, 89.11-89.13, 89.15-89.16, 89.26, 89.29, 89.31, 89.33-89.39, 89.7-89.8, 90.01-90.99, 91.01-91.99, 93.01- 93.09, 93.11-93.19, 93.21-93.25, 93.27-93.28, 93.31-93.39, 93.61-93.67, 93.71-93.78, 93.81-93.89, 94.01-94.09, 94.11- 94. 19, 94.21-94.23, 94.29, 94.31-94.39, 94.41-94.49, 94 .51- 94 .59, 95.01-95.03 95.05-95.09, 95.14-95.15, 95.31-95.36, 95.41-95.48, 96.11-96.19, 96.26-96.28, 96.34-96.39, 96. 41- 96.48, 96.51-96.59, 96.6, 97.01-97.04, 97.14-97.16, 97.21- 97.29, 97.31-97.39, 97.41-97.49, 97.51-97.59, 97.61-97.69, 97.72-97.79, 97.81-97.87, 97.89, 99.12-99.14, 99.16-99.18, 99.26-99.29, 99.31-99.39, 99.41-99.48, 99.51-99.59 Appendix E - Frequencies for Selected NHDS Variables Unweighted Frequencies for Selected NHDS Variables 1. UNWEIGHTED FREQUENCIES FOR SELECTED NHDS VARIABLES (Note: Freguencies exclude newborns) CUMULATIVE CUMULATIVE ITEM 1 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 226024 95.8 226024 95.8 2 6849 2.9 232873 98.7 3 3074 1.3 235947 100.0 CUMULATIVE CUMULATIVE ITEM 3 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 194553 40.1 94553 40.1 2 141394 59.9 235947 100.0 CUMULATIVE CUMULATIVE ITEM 4 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 42322 17.9 42322 17.9 2 37617 15.9 79939 33.9 3 12234 5.2 92173 39.1 4 4183 1.8 96356 40.8 5 882 0.4 97238 41.2 6 96140 40.7 193378 82.0 7 42569 18.0 235947 100.0 CUMULATIVE CUMULATIVE ITEM 7 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 197986 83.9 197986 83.9 2 1979 0.8 199965 84.7 3 5110 2.2 205075 86.9 4 12377 5.2 217452 92.2 5 8572 3.6 226024 95.8 6 6849 2.9 232873 98.7 7 3074 1.3 235947 100.0 CUMULATIVE CUMULATIVE ITEM 8 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 23441 9.9 23441 9.9 2 89393 37.9 112834 47.8 3 46286 19.6 159120 67.4 4 76827 32.6 235947 100.0 CUMULATIVE CUMULATIVE ITEM 9 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 41765 17.7 41765 17.7 2 54265 23.0 96030 40.7 3 39779 16.9 135809 57.6 4 31392 13.3 167201 70.9 5 31315 13.3 198516 84.1 6 14130 6.0 212646 90.1 7 23301 9.9 235947 100.0 CUMULATIVE CUMULATIVE ITEM 10 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 0 75136 31.8 75136 31.8 1 67185 28.5 142321 60.3 2 43477 18.4 185798 78.7 3 29767 12.6 215565 91.4 4 20382 8.6 235947 100.0 CUMULATIVE CUMULATIVE ITEM 15 FREQUENCY PERCENT FREQUENCY PERCENT ------------------------------------------------------------------ NOTE: No zero values appear since the distribution excludes newborns. However, the newborns coded zero are included on the tape. 1 7785 3.3 7785 3.3 2 7244 3.1 15029 6.4 3 8412 3.6 23441 9.9 4 25812 10.9 49253 20.9 5 38626 16.4 87879 37.2 6 24955 10.6 112834 47.8 7 21037 8.9 133871 56.7 8 25249 10.7 159120 67.4 9 34912 14.8 194032 82.2 10 41915 17.8 235947 100.0 CUMULATIVE CUMULATIVE ITEM 16 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- l 152571 64.7 152571 64.7 2 27473 11.6 180044 76.3 3 455 0.2 180499 76.5 4 4285 1.8 184784 78.3 5 5393 2.3 190177 80.6 6 45770 19.4 235947 100.0 CUMULATIVE CUMULATIVE ITEM 18 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 177187 75.1 177187 75.1 2 36784 15.6 213971 90.7 3 11135 4.7 225106 95.4 4 4783 2.0 229889 97.4 5 6058 2.6 235947 100.0 CUMULATIVE CUMULATIVE ITEM 19 FREQUENCY PERCENT FREQUENCY PERCENT --------------------------------------------------------------- 1 64201 27.2 64201 27.2 2 61751 26.2 125952 53.4 3 77085 32.7 203037 86.1 4 32910 13.9 235947 100.0 CUMULATIVE CUMULATIVE ITEM 20 FREQUENCY PERCENT FREQUENCY PERCENT --------------------------------------------------------------- 1 18846 8.0 18846 8.0 2 47728 20.2 66574 28.2 3 65378 27.7 131952 55.9 4 75439 32.0 207391 87.9 5 28556 12.1 235947 100.0 CUMULATIVE CUMULATIVE ITEM 21 FREQUENCY PERCENT FREQUENCY PERCENT --------------------------------------------------------------- 1 24831 10.5 24831 10.5 2 21385 9.1 46215 19.6 3 189731 80.4 235947 100.0 CUMULATIVE CUMULATIVE ITEM 24.1 FREQUENCY PERCENT FREQUENCY PERCENT --------------------------------------------------------------- 0 8121 3.4 8121 3.4 1 3240 1.4 11361 4.8 2 75510 32.0 86871 36.8 3 28383 12.0 115254 48.8 4 5442 2.3 120696 51.2 5 3888 1.6 124584 52.8 6 27642 11.7 152226 64.5 7 69765 29.6 221991 94.1 8 13288 5.6 235279 99.7 9 668 0.3 235947 100.0 CUMULATIVE CUMULATIVE ITEM 24.2 FREQUENCY PERCENT FREQUENCY PERCENT --------------------------------------------------------------- FREQUENCY MISSING = 235947 CUMULATIVE CUMULATIVE ITEM 24.3 FREQUENCY PERCENT FREQUENCY PERCENT --------------------------------------------------------------- 0 3390 7.6 3390 7.6 2 45 0.1 3435 7.7 3 6447 14.5 9882 22.2 5 1010 2.3 10892 24.4 6 9811 22.0 20703 7 16479 37.0 46.4 37182 83.4 8 6539 14.7 43721 98.1 9 860 1.9 44581 100.0 FREQUENCY MISSING = 191366 CUMULATIVE CUMULATIVE ITEM 24.4 FREQUENCY PERCENT FREQUENCY PERCENT --------------------------------------------------------------- 0 358 41.5 358 41.5 3 123 14.3 481 55.8 5 7 0.8 488 56.6 6 58 6.7 546 63.3 7 226 26.2 772 89.6 8 90 10.4 862 100.0 FREQUENCY MISSING = 235085 CUMULATIVE CUMULATIVE ITEM 24.5 FREQUENCY PERCENT FREQUENCY PERCENT --------------------------------------------------------------- 0 1 9.1 1 9.1 2 1 9.1 2 18.2 3 1 9.1 3 27.3 5 3 27.3 6 54.5 7 3 27.3 9 81.8 8 1 9.1 10 90.9 9 1 9.1 11 100.0 FREQUENCY MISSING = 235936 CUMULATIVE CUMULATIVE ITEM 24.6 FREQUENCY PERCENT FREQUENCY PERCENT --------------------------------------------------------------- 5 1 100.0 1 100.0 FREQUENCY MISSING = 235946 3Weighted Frequencies for Selected NHDS Variables 2. WEIGHTED FREQUENCIES FOR SELECTED NHDS VARIABLES (Note: Frequencies exclude newborns) CUMULATIVE CUMULATIVE ITEM 1 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- l 29412457 95.5 29412457 95.5 2 877071 2.8 30289528 98.4 3 498411 1.6 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 3 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 12279604 39.9 12279604 39.9 2 18508335 60.1 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 4 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 9445257 30.7 9445257 30.7 2 5949610 19.3 15394867 50.0 3 2728940 8.9 18123807 58.9 4 935675 3.0 19059482 61.9 5 173747 0.6 19233229 62.5 6 8250050 26.8 27483279 89.3 7 3304660 10.7 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 7 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 25712509 83.5 25712509 83.5 2 255708 0.8 25968217 84.3 3 804804 2.6 26773021 87.0 4 1611637 5.2 28384658 92.2 5 1027799 3.3 29412457 95.5 6 877071 2.8 30289528 98.4 7 498411 1.6 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 8 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 2411567 7.8 2411567 7.8 2 11798790 38.3 14210357 46.2 3 6244374 20.3 20454731 66.4 4 10333208 33.6 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 9 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- l 5426647 17.6 5426647 17.6 2 7024572 22.8 12451219 40.4 3 5289771 17.2 17740990 57.6 4 4008537 13.0 21749527 70.6 5 3769837 12.2 25519364 82.9 6 1940567 6.3 27459931 89.2 7 3328008 10.8 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 10 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 0 10562232 34.3 10562232 34.3 1 8683234 28.2 19245466 62.5 2 5403647 17.6 24649113 80.1 3 3540156 11.5 28189269 91.6 4 2598670 8.4 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 15 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- NOTE: No zero values appear since the distribution excludes newborns. However, the newborns coded zero are included on the tape. 1 791456 2.6 791456 2.6 2 718729 2.3 1510185 4.9 3 901382 2.9 2411567 7.8 4 3535522 11.5 5947089 19.3 5 4964789 16.1 10911878 35.4 6 3298479 10.7 14210357 46.2 7 2832257 9.2 17042614 55.4 8 3412117 11.1 20454731 66.4 9 4689443 15.2 25144174 81.7 10 5643765 18.3 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 16 FREQUENCY PERCENT FREQUENCY PERCENT ---------------------------------------------------------------- 1 21375856 69.4 21375856 69.4 2 3611203 11.7 24987059 81.2 3 85563 0.3 25072622 81.4 4 388704 1.3 25461326 82.7 5 483971 1.6 25945297 84.3 6 4842642 15.7 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 18 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- l 23335099 75.8 23335099 75.8 2 4771767 15.5 28106866 91.3 3 1378945 4.5 29485811 95.8 4 581145 1.9 30066956 97.7 5 720983 2.3 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 19 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 6895148 22.4 6895148 22.4 2 7620112 24.8 14515260 47.1 3 11173053 36.3 25688313 83.4 4 5099626 16.6 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 20 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 5386894 17.5 5386894 17.5 2 6920037 22.5 12306931 40.0 3 6448587 20.9 18755518 60.9 4 8391217 27.3 27146735 88.2 5 3641204 11.8 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 21 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 1 3226480 10.5 3226480 10.5 2 3985809 12.9 13376813 23.4 3 23575650 76.6 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 24.1 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 0 795047 2.6 795047 2.6 1 399468 1.3 1194515 3.9 2 10624699 34.5 11819214 38.4 3 3582293 11.6 15401507 50.0 4 991607 3.2 16393114 53.2 5 606883 2.0 16999997 55.2 6 3274482 10.6 20274479 65.9 7 8651303 28.1 28925782 94.0 8 1788155 5.8 30713937 99.8 9 74002 0.2 30787939 100.0 CUMULATIVE CUMULATIVE ITEM 24.2 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- FREQUENCY MISSING = 30787939 CUMULATIVE CUMULATIVE ITEM 24.3 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 0 254393 3.8 254393 3.8 2 9918 0.1 264311 4.0 3 1093346 16.4 1357657 20.4 5 233603 3.5 1591260 23.9 6 1673049 25.1 3264309 48.9 7 2610947 39.1 5875256 88.1 8 743683 11.1 6618939 99.2 9 51942 0.8 6670881 100.0 FREQUENCY MISSING = 24117058 CUMULATIVE CUMULATIVE ITEM 24.4 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 0 50730 28.9 50730 28.9 3 10414 5.9 61144 34.9 5 1901 1.1 63045 35.9 6 16373 9.3 79418 45.3 7 56065 32.0 135483 77.2 8 39962 22.8 175445 100.0 FREQUENCY MISSING = 30612494 CUMULATIVE CUMULATIVE ITEM 24.5 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 0 762 20.5 762 20.5 2 192 5.2 954 25.7 3 261 7.0 1215 32.7 5 331 8.9 1546 41.6 7 1973 53.1 3519 94.6 8 159 4.3 3678 98.9 9 40 1.1 3718 100.0 FREQUENCY MISSING = 30784221 CUMULATIVE CUMULATIVE ITEM 24.6 FREQUENCY PERCENT FREQUENCY PERCENT ----------------------------------------------------------------- 5 159 100.0 159 100.0 FREQUENCY MISSING = 30787780 REFERENCES 1. National Center for Health Statistics: Development of the design of the NCHS Hospital Discharge Survey, by W. R. Simmons. Vital and Health Stati- stics. PHS Pub. No. 1000, Series 2-No. 39. Public Health Service. Washington. U.S. Government Printing Office, Sept. 1970. 2. SMG Hospital Marketing Group, Inc. 1989. Hospital Market Database. Health Care Information Specialists, 1342 North LaSalle Drive, Chicago, Chicago, Illinois. 3. National Center for Health Statistics: International Classification of Diseases, 9th Revision, Clinical Modification. DHHS Pub. No. (PHS) 80-1260. Public Health Service. Washington. U.S. Government Printing Office, Sept. 198 4. Office of the Secretary, Department of Health and Human Services: Health Information Policy Council: 1984 Revision of the Uniform Hospital Discharge Data Set. Federal Register, Volume 50. No. 147. July 31, 1985. 5. Shah, B.V. 1981. SESUDAAN: Standard Errors Program for Computing of Standardized Rates from Sample Survey Data. Research Triangle Institute. Research Triangle Park, N.C.
