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Scientific Data Documentation
National Hospital Discharge Survey, 1970-1987
DSN: CC36.NHDS70 CC36.NHDS71 CC36.NHDS72 CC36.NHDS73 CC36.NHDS74 CC36.NHDS75 CC36.NHDS76 CC36.NHDS77 CC36.NHDS78 CC36.NHDS79 CC36.NHDS80 CC36.NHDS81 CC36.NHDS82 CC36.NHDS83 CC36.NHDS84 CC36.NHDS85 CC36.NHDS86 CC36.NHDS87ABSTRACT
This document and its attachments allow one to use the 1970-78, 1979-85, and 1986-87 data tapes which contain the data collected by the National Hospital Discharge 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 calculating 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 other sections. For a more detailed description of the survey design, data collection procedures, and the estimation process, see Reference l.
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, the 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 l963, 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 l964 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
The National Hospital Discharge Survey encompasses patients discharged from noninstitutional hospitals, exclusive of Federal hospitals, located in the 50 States and the District of Columbia. For purposes of the NHDS, a facility is considered a short-stay hospital only if it meets the following criteria:
1. At least six beds are maintained for use by inpatients. 2. It is licensed as a hospital in States with licensure laws. 3. Inpatient medical care is provided under the supervision of a licensed doctor of medicine or osteopathy. 4. Nursing service is provided 24 hours a day under supervision of a registered nurse. 5. Separate medical records are maintained for each patient admitted. 6. The average length of stay for all patients is less than 30 days.METHODOLOGY
Sampling Frame and Size of SampleThe National Master Facility Inventory of Hospitals and Institutions (NMFI) constitutes the sampling frame (universe) for hospitals in the NHDS. The NCHS has published a detailed description of the NMFI, its contents, plans for maintaining it, and procedures for assessing the completeness of its coverage (see Reference 2). The universe for the survey consisted originally of 6,965 short-stay hospitals, excluding military and VA hospitals, contained in the NMFI in l963.
Some hospitals refused to participate and some were deemed out of scope, either because the hospital had gone out of business or because it failed to meet the NHDS definition of a short-stay hospital. The number of hospitals which refused to participate or were out of scope are given in Table l, along with the number of participating hospitals.Number of Hospitals Year Sampled Refused Out of Scope Surveyed 1970 465 46 24 395 1971 465 60 26 379 1972 497 45 28 424 1973 497 42 31 424 1974 497 38 33 426 1975 511 44 35 432 1976 511 53 39 419 1977 535 68 44 423 1978 535 74 48 413 1979 544 65 48 431 1980 544 72 52 420 1981 550 71 51 428 1982 550 71 53 426 1983 553 78 57 418 1984 553 86 60 407 1985 558 82 62 414 1986 558 75 65 418 1987 558 92 66 400Sample Design All hospitals with 1,000 beds or more in the original universe of short-stay hospitals were selected with certainty in the sample. All hospitals with fewer than 1,000 beds were stratified, the primary stratum being the 24 size-by-region classes shown in Table 2. Within each of these 24 primary strata, the allocation of the hospitals was made through a controlled selection technique so that hospitals in the sample would be properly distributed with regard to type of ownership and geographic division. Sample hospitals were drawn with probabilities ranging from certainty for the largest hospitals to l in 40 for the smallest hospitals. The within-hospital sampling ratio for selecting sample discharges varied inversely with the probability of selection of the hospital. The smallest sampling fraction of discharged patients was taken in the largest hospitals, and the largest fraction was taken in the smallest hospitals. This was done to compensate for the fact that hospitals were selected with probabilities proportionate to their size class and to assure that the overall probability of selecting a discharge would be approximately the same in each size class. Distribution of Non-Federal Short-Stay Hospitals: U.S., 1978 Distribution of non-Federal short-stay hospitals in the universe and National Discharge Survey in-scope sample by geographic region and bed size of hospital: United States, 1978 Bed size of All North hospital Regions Northeast Central South West All sizes Number of hospitals Universe....... 7,903 1,177 2,124 3,130 1,472 Sample......... 535 132 152 170 81 Number participating.. 413 110 115 125 63 6-49 beds Universe....... 3,486 221 889 1,658 718 Sample......... 69 8 18 30 13 Number participating.. 42 6 13 16 7 50-99 beds Universe....... 1,871 299 482 721 369 Sample......... 79 14 20 31 14 Number participating.. 58 10 14 23 11 100-199 beds Universe...... 1,371 298 404 448 221 Sample........ 118 26 33 40 19 Number participating.. 91 22 26 27 16 200-299 beds Universe....... 614 193 164 160 97 Sample......... 96 31 27 23 15 Number participating.. 76 26 21 17 12 300-499 beds Universe....... 408 112 134 109 53 Sample......... 97 25 32 28 12 Number participating.. 82 22 26 25 9 500-999 beds Universe....... 135 45 48 29 13 Sample......... 58 19 19 13 7 Number participating.. 48 16 12 13 7 1,000 beds or more Universe....... 18 9 3 5 1 Sample......... 18 9 3 5 1 Number participating.. 16 8 3 4 1 Distribution of Non-Federal Short-Stay Hospitals: U.S., 1979 Distribution of non-Federal short-stay hospitals in the universe and National Hospital Discharge Survey in-scope sample by geographic region and bed size of hospital: United States, 1979 Bed size of All North hospital Regions Northeast Central South West All sizes Number of hospitals Universe....... 8,017 1,784 2,148 3,196 1,489 Sample......... 544 132 153 176 83 Number participating.. 431 110 116 143 62 6-49 beds Universe....... 3,521 223 899 1,670 729 Sample......... 70 8 18 30 14 Number participating.. 44 6 13 19 6 50-99 beds Universe....... 1,897 301 486 737 373 Sample......... 80 14 20 32 14 Number participating.. 61 11 14 25 11 100-199 beds Universe...... 1,411 298 412 479 222 Sample........ 122 26 34 43 19 Number participating.. 99 22 27 34 16 200-299 beds Universe....... 624 195 166 165 98 Sample......... 98 31 27 24 16 Number participating.. 76 26 20 18 12 300-499 beds Universe....... 411 113 134 111 53 Sample......... 98 25 32 29 12 Number participating.. 86 22 26 29 9 500-999 beds Universe....... 135 45 48 29 13 Sample......... 58 19 19 13 7 Number participating.. 48 15 13 13 7 1,000 beds or more Universe....... 18 9 3 5 1 Sample......... 18 9 3 5 1 Number participating.. 17 8 3 5 1 Distribution of Non-Federal Short-Stay Hospitals: U.S., 1980 Distribution of non-Federal short-stay hospitals in the universe and National Hospital Discharge Survey in-scope sample by geographic region and bed size of hospital: United States, 1980 Bed size of All North hospital regions Northeast Central South West All sizes Number of hospitals Universe....... 8,017 1,784 2,148 3,196 1,489 Sample......... 544 132 153 176 83 Number participating.. 420 108 119 131 62 6-49 beds Universe....... 3,521 223 899 1,670 729 Sample......... 70 8 18 30 14 Number participating.. 41 5 13 16 7 50-99 beds Universe....... 1,897 301 486 737 373 Sample......... 80 14 20 32 14 Number participating.. 58 10 14 24 10 100-199 beds Universe...... 1,411 298 412 479 222 Sample........ 122 26 34 43 19 Number participating.. 98 22 29 31 16 200-299 beds Universe....... 624 195 166 165 98 Sample......... 98 31 27 24 16 Number participating.. 76 26 21 17 12 300-499 beds Universe....... 411 113 134 111 53 Sample......... 98 25 32 29 12 Number participating.. 80 20 24 27 9 500-999 beds Universe....... 135 45 48 29 13 Sample......... 58 19 19 13 7 Number participating.. 51 17 15 12 7 1,000 beds or more Universe....... 18 9 3 5 1 Sample......... 18 9 3 5 1 Number participating.. 16 8 3 4 1 Distribution of Non-Federal Short-Stay Hospitals: U.S., 1981 Distribution of non-Federal short-stay hospitals in the universe and National Hospital Discharge Survey in-scope sample by geographic region and bed size of hospital: United States, 1981 Bed size of All North hospital regions Northeast Central South West All sizes Number of hospitals Universe....... 8,080 1,185 2,156 3,236 1,503 Sample......... 550 132 155 180 83 Number participating.. 428 105 124 135 64 6-49 beds Universe....... 3,537 223 901 1,679 734 Sample......... 70 8 18 30 14 Number participating.. 44 6 13 18 7 50-99 beds Universe....... 1,918 301 487 751 379 Sample......... 81 14 20 33 14 Number participating.. 61 9 15 25 12 100-199 beds Universe...... 1,427 298 414 491 224 Sample........ 124 26 34 45 19 Number participating.. 96 22 29 29 16 200-299 beds Universe....... 632 196 168 169 99 Sample......... 100 31 28 25 16 Number participating.. 78 25 23 18 12 300-499 beds Universe....... 413 113 135 112 53 Sample......... 99 25 33 29 12 Number participating.. 82 20 26 27 9 500-999 beds Universe....... 135 45 48 29 13 Sample......... 58 19 19 13 7 Number participating.. 51 15 16 13 7 1,000 beds or more Universe....... 18 9 3 5 1 Sample......... 18 9 3 5 1 Number participating.. 16 8 3 4 1 Distribution of Non-Federal Short-Stay Hospitals: U.S., 1982 Distribution of non-Federal short-stay hospitals in the universe and National Hospital Discharge Survey in-scope sample by geographic region and bed size of hospital: United States, 1982 Bed size of All North hospital regions Northeast Central South West All sizes Number of hospitals Universe....... 8,080 1,185 2,156 3,236 1,503 Sample......... 550 132 155 180 83 Number participating.. 426 104 121 138 63 6-49 beds Universe....... 3,537 223 901 1,679 734 Sample......... 70 8 18 30 14 Number participating.. 45 6 12 19 8 50-99 beds Universe....... 1,918 301 487 751 379 Sample......... 81 14 20 33 14 Number participating.. 60 9 15 26 10 100-199 beds Universe...... 1,427 298 414 491 224 Sample........ 124 26 34 45 19 Number participating.. 95 22 28 29 16 200-299 beds Universe....... 632 196 168 169 99 Sample......... 100 31 28 25 16 Number participating.. 78 25 22 19 12 300-499 beds Universe....... 413 113 135 112 53 Sample......... 99 25 33 29 12 Number participating.. 82 20 26 27 9 500-999 beds Universe....... 135 45 48 29 13 Sample......... 58 19 19 13 7 Number participating.. 49 14 15 13 7 1,000 beds or more Universe....... 18 9 3 5 1 Sample......... 18 9 3 5 1 Number participating.. 17 8 3 5 1 Distribution of Non-Federal Short-Stay Hospitals: U.S., 1983 Distribution of non-Federal short-stay hospitals in the universe and National Hospital Discharge Survey in-scope sample by geographic region and bed size of hospital: United States, 1983 Bed size of All North hospital regions Northeast Central South West All sizes Number of hospitals Universe....... 8,130 1,188 2,168 3,266 1,508 Sample......... 553 132 155 183 83 Number participating.. 418 105 118 133 62 6-49 beds Universe....... 3,542 223 903 1,681 735 Sample......... 70 8 18 30 14 Number participating.. 41 6 11 17 7 50-99 beds Universe....... 1,939 301 490 766 382 Sample......... 82 14 20 34 14 Number participating.. 60 10 15 25 10 100-199 beds Universe...... 1,444 299 419 501 225 Sample........ 125 26 34 46 19 Number participating.. 96 22 28 30 16 200-299 beds Universe....... 639 198 170 172 99 Sample......... 101 31 28 26 16 Number participating.. 80 26 23 19 12 300-499 beds Universe....... 413 113 135 112 53 Sample......... 99 25 33 29 12 Number participating.. 77 20 23 25 9 500-999 beds Universe....... 135 45 48 29 13 Sample......... 58 19 19 13 7 Number participating.. 47 13 15 12 7 1,000 beds or more Universe....... 18 9 3 5 1 Sample......... 18 9 3 5 1 Number participating.. 17 8 3 5 1 Distribution of Non-Federal Short-Stay Hospitals: U.S., 1984 Distribution of non-Federal short-stay hospitals in the universe and National Hospital Discharge Survey in-scope sample by geographic region and bed size of hospital: United States, 1984 Bed size of All North hospital regions Northeast Central South West All sizes Number of hospitals Universe....... 6,023 902 1,704 2,291 1,126 Sample......... 493 115 140 164 74 6-49 beds Universe....... 1,372 78 415 535 344 Sample......... 39 6 11 13 9 50-99 beds Universe....... 1,467 160 427 611 269 Sample......... 62 10 14 30 8 100-199 beds Universe...... 1,398 203 373 571 251 Sample........ 93 16 22 43 12 200-299 beds Universe....... 733 196 177 237 123 Sample......... 72 18 21 20 13 300-499 beds Universe....... 715 176 202 224 113 Sample......... 119 37 35 25 22 500-999 beds Universe....... 309 78 101 105 25 Sample......... 95 23 34 29 9 1,000 beds or more Universe....... 29 11 9 8 1 Sample......... 13 5 3 4 1 Distribution of Non-Federal Short-Stay Hospitals: U.S., 1985 Distribution of non-Federal short-stay hospitals in the universe and National Hospital Discharge Survey in-scope sample by geographic region and bed size of hospital: United States, 1985 Bed size of All North hospital regions Northeast Central South West All sizes Number of hospitals Universe....... 6,007 902 1,687 2,301 1,117 Sample......... 496 115 140 166 75 6-49 beds Universe....... 1,351 73 420 527 331 Sample......... 36 6 10 11 9 50-99 beds Universe....... 1,464 163 414 623 264 Sample......... 65 11 15 31 8 100-199 beds Universe...... 1,410 204 374 574 258 Sample........ 92 15 21 43 13 200-299 beds Universe....... 747 199 179 247 122 Sample......... 80 19 21 24 16 300-499 beds Universe....... 706 177 196 214 119 Sample......... 115 35 35 24 19 500-999 beds Universe....... 302 77 96 107 22 Sample......... 96 24 33 30 9 1,000 beds or more Universe....... 27 9 8 9 1 Sample......... 12 5 3 3 1 In nearly all hospitals, the daily listing sheet of discharges was the frame from which the subsamples of discharges were selected within the sample hospitals. The sample discharges were selected by a random technique, usually on the basis of the terminal digit(s) of the patient's medical record number--a number assigned when the patient was admitted to the hospital. If the hospital's daily discharge listing did not show the medical record number, the sample was selected by starting with a randomly selected discharge and taking every kth discharge thereafter. Distribution of Non-Federal Short-Stay Hospitals: U.S., 1986 Distribution of non-Federal short-stay hospitals in the universe and National Hospital Discharge Survey in-scope sample by geographic region and bed size of hospital: United States, 1986 Bed size of All hospital regions Northeast Midwest South West All sizes Number of hospitals Universe....... 6,007 902 1,687 2,301 1,117 Sample......... 493 115 139 164 75 6-49 beds Universe....... 1,351 73 420 527 331 Sample......... 35 6 10 10 9 50-99 beds Universe....... 1,464 163 414 623 264 Sample......... 65 11 15 31 8 100-199 beds Universe...... 1,410 204 374 574 258 Sample........ 92 15 21 43 13 200-299 beds Universe....... 747 199 179 247 122 Sample......... 78 19 20 23 19 300-499 beds Universe....... 706 177 196 214 119 Sample......... 115 35 37 24 19 500-999 beds Universe....... 302 77 96 107 22 Sample......... 96 24 33 30 9 1,000 beds or more Universe....... 27 9 8 9 1 Sample......... 12 5 3 3 1 Distribution of Non-Federal Short-Stay Hospitals: U.S., 1987 Distribution of non-Federal short-stay hospitals in the universe and National Hospital Discharge Survey in-scope sample by geographic region and bed size of hospital: UNITED STATES, 1987 Bed size of All hospital regions Northeast Midwest South West All sizes Number of hospitals Universe....... 6,007 902 1,687 2,301 1,117 SAMPLE......... 491 115 139 163 74 6-49 beds Universe....... 1,351 73 420 527 331 SAMPLE......... 31 6 9 11 5 50-99 beds Universe....... 1,464 163 414 623 264 SAMPLE......... 66 11 14 30 11 100-199 beds Universe...... 1,410 204 374 574 258 SAMPLE........ 89 15 21 39 14 200-299 beds Universe....... 747 199 179 247 122 SAMPLE......... 90 20 27 26 17 300-499 beds Universe....... 706 177 196 214 119 SAMPLE......... 118 37 38 26 17 500-999 beds Universe....... 302 77 96 107 22 SAMPLE......... 87 21 29 28 9 1,000 beds or more Universe....... 27 9 8 9 1 SAMPLE......... 10 5 2 2 1 In nearly all hospitals, the daily listing sheet of discharges was the frame from which the subsamples of discharges were selected within the sample hospitals. The sample discharges were selected by a random technique, usually on the basis of the terminal digit(s) of the patient's medical record number--a number assigned when the patient was admitted to the hospital. If the hospital's daily discharge listing did not show the medical record number, the sample was selected by starting with a randomly selected discharge and taking every kth discharge thereafter. Data Collection Data Collection (1970-1985) Depending on the study procedure agreed on with the hospital administrator, either hospital staff or representatives of the NCHS performed the sample selection and the transcription of information from the hospital records to abstract forms. In about two-thirds of the hospitals that participate in the NHDS, the medical records department of the hospital performed this work. In the remaining hospitals, personnel of the U.S. Bureau of the Census acting for the NCHS performed the work. Survey hospitals used an abstract form to transcribe data from the hospital records. The abstract form provides for recording demographic data, admission and discharge dates, discharge status, and information on discharge diagnoses and surgical operation discharge diagnoses were listed on the abstract form in the order of principal diagnosis, or first- listed diagnosis if the principal diagnosis was not identified, followed by the order in which all other diagnoses were entered on the face sheet of the medical record. All operations were listed in the order in which they were recorded on the face sheet. Shipments of completed abstract forms for each sample hospital were transmitted, along with sample selection control sheets, to a Census , Regional Office. Every shipment of abstracts was reviewed and each abstract form was checked for completeness. Abstracts were then sent to the NCHS for processing. Data Collection (1986-1987) There were two data collection procedures used for the survey. The first was the traditional manual system of sample selection and data abstraction. The second was an automated method, used in approximately 17 percent of the sample hospitals, that involved the purchase of data tapes from commercial abstracting services. In the manual system, depending on the study procedure agreed on with the hospital administrator, the sample selection and the transcription of information from the hospital records to abstract forms were performed by either the hospital staff or by representatives of the National Center for Health Statistics (NCHS) or by both. About 50 percent of the hospitals that participated in the manual NHDS system had the work performed by the medical records department of the hospital. In the remaining hospitals using this system, the work was performed by the medical records department of the hospital. In the remaining hospitals using this system, the work was performed by personnel of the U.S. Bureau of the Census acting for NCHS. The completed forms were forwarded to NCHS for coding, editing, and weighting procedures. For hospitals using the automated system, tapes containing machine readable medical record data were purchased from commercial abstracting services. Upon receipt of these tapes they were subject to NCHS sampling, editing, and weighting procedures. A detailed description of the automated process will be published. The Medical Abstract Form and the abstract service data tapes contain items relating to the personal characteristics of the patient, including birth data, 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 nonsurgical operations or procedures. Medical Coding and Edit Medical Coding and Edit (1970-1978) The medical information recorded on the sample patient abstracts was coded centrally by the NCHS staff. A maximum of five diagnostic codes was assigned for each sample abstract; in addition, if the medical information included surgery, a maximum of three codes for surgical operations and procedures was assigned. Following the conversion of the data on the medical abstract to computer tape, a final medical edit was accomplished by computer inspection runs and a shed review of rejected abstracts. If sex or age of patient was incompatible with the recorded medical information, priority was given to the medical information in the editing decision. The basic system for coding the diagnoses on NHDS sample patient abstracts is the ICDA-8 (see Reference 3). The ICDA-8 section for Surgical Operations, Diagnostic and Other Therapeutic Procedures is the coding system used for surgical procedures and operations. Modifications to the ICDA-8 have been made for the NHDS because of incomplete or ill-defined terminology on the abstracts or to provide additional detail. These modifications are detailed in Appendix C. The symbols Y, A, and R as found in ICDA-8 are replaced on the tape by the sympols & (ampersand), * (asterisk), and - (dash), respectively. Medical Coding and Edit (1979-1985) The medical information recorded on the sample patient abstracts was coded centrally by the NCHS staff. A maximum of seven diagnostic codes was assigned for each sample abstract; in addition, if the medical information included surgery, a maximum of four codes for surgical operations and procedures was assigned. Following the conversion of the data on the medical abstract to computer tape, a final medical edit was accomplished by computer inspection runs and a shed review of rejected abstracts. If sex or age of patient was incompatible with the recorded medical information, priority was given to the medical information in the editing decision. (The next paragraph was added in 1984) NHDS medical coders code from abstracts of medical records in the order the diagnoses and procedures are entered. For most abstracts, this coding procedure is relatively free of problems. It was noted, however, that acute myocardial infarction frequently was not the lead entry in a group of circulatory diagnoses. For example, the patient's record may have arteriosclerosis listed first and arteriosclerotic heart disease listed second with acute myocardial infarction listed third. A decision was made to reorder some acute myocardial infarction diagnoses. The new procedure, based on accepted medical coding practice, states that whenever an acute myocardial infarction in encountered with other circulatory diagnoses and is other than the first entry, it should be reordered to the first position. The basic system for coding the diagnoses on the NHDS sample patient abstracts is the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) (see Reference 3). The ICD-9-CM section for Surgical Operations, Diagnostic and Other Therapeutic Procedures is the coding system used for surgical procedures and operations. The Uniform Hospital Discharge Data Set (UHDDS) classifies ICD-9-CM procedures into four classes. Classes 1-3 consist of "significant procedures" - that is, procedures which carry an operative or anesthetic risk or require highly trained personnel, special facilities, or special equipment. Class 4 procedures are not considered significant; therefore, reporting them is considered optional. The Class 4 procedures not coded by the NHDS are listed in Appendix C. Medical Coding and Edit (1986-1987) For hospitals in the manual system the medical information recorded on the sample patient abstracts was coded centrally by the NCHS staff. A maximum of seven diagnostic codes was assigned for each sample abstract; in addition, if the medical information included surgery, a maximum of four codes for surgical operations and procedures was assigned. Following the conversion of the data on the medical abstract to computer tape, a final medical edit was accomplished by computer inspection runs and a review of rejected abstracts. If sex or age of patient was incompatible with the recorded medical information, priority was give to the medical information in the editing decision. NHDS medical coders code from abstracts of medical records in the order the diagnoses and procedures are entered. For most abstracts, this coding procedure is relatively free of problems. It was noted, however, that acute myocardial infarction frequently was not the lead entry in a group of circulatory diagnoses. For example, the patient's record may have arteriosclerosis listed first and arteriosclerotic heart disease listed second with acute myocardial infarction listed third. A decision was made to reorder some acute myocardial infarction diagnoses. The new procedure, based on accepted medical coding practice, states that whenever an acute myocardial infarction in encountered with other circulatory diagnoses and is other than the first entry, it should be reordered to the first position. Additionally, if a women delivers a child during the hospital episode, code V27 is the first-listed diagnosis. The basic system for coding the diagnoses on the NHDS sample patient abstracts is the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) (see Reference 3). The ICD-9-CM section for Surgical Operations, Diagnostic and Other Therapeutic Procedures is the coding system used for surgical procedures and operations. The Uniform Hospital Discharge Data Set (UHDDS) classifies ICD-9-CM procedures into four classes. Classes 1-3 consist of "significant procedures" - that is, procedures which carry an operative or anesthetic risk or require highly trained personnel, special facilities, or special equipment. Class 4 procedures are not considered significant; therefore, reporting them is considered optional. The Class 4 procedures not coded by the NHDS are listed in Appendix C. Population Estimates Appendix B contains population estimates provided by the U.S. Bureau of the Census. The estimates cover the U.S. civilian noninstitutionalized population on July l 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 l 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 of patient, it was imputed by assigning the patient an age or sex consistent with the age or sex of other patients with the same diagnostic codes. If the dates of 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 stays of other patients of the same age. In addition, nonresponse (about 6 percent) for principal expected source of payment was imputed to reflect similarities in sex and age. Sampling Errors Procedures for calculating sampling errors are described in detail in Reference l. Estimates of standard errors for a particular year calculated from NHDS data are available in the appendix of the NHDS publications for that year. Generally, estimates from the NHDS generated from 30 or fewer records are deemed unreliable and not published by NCHS, and estimates based on 30-50 sampled records should be used with extreme caution. Questions Questions concerning data on the tape should be directed to the Hospital Care Statistics Branch, Division of Health Care Statistics, National Center for Health Statistics, Center Building, Room 2-43, 3700 East-West Highway, Hyattsville, Maryland 20782, (301)-436-7125.SAMPLE LAYOUT FOR FORM HDS-1 (1970-78) Form HDS-1 Form Approved Formerly HSM-SS-1 O.M.B. No. 68-R0620 CONFIDENTIAL - All information which would permit identification of an individual or of an establishment will be held confidential, will be used only by persons engaged in and for the purposes of the survey and will not be disclosed or released to other persons or used for any other purpose. DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE Public Health Service Health Resources Administration National Center for Health Statistics MEDICAL ABSTRACT - HOSPITAL DISCHARGE SURVEY I. Patient Identification 1. Hospital number 4. Date of admission 2. HDS number 5. Date of discharge 3. Medical record number II. Patient Characteristics 1. Date of birth 2. Age (complete ONLY if date of birth not given): _______Units 1 years 2 months 3 days 3. Sex: 1 Male 2 Female 4. Race or color: 1 White 2 Negro 3 Other nonwhite 4 "Nonwhite" 5 Not stated 5. Marital status: 1 Married 2 Single 3 Widowed 4 Divorced 5 Separated 6 Not stated 6. Discharge status: 1 Alive 2 Dead III. Diagnoses and Operations 1. Final diagnoses a. Principal diagnosis: b. Other diagnoses: 2. Operations Completed by Date FOR NCHS USE ONLY Diagnoses Operations Figure I. Medical Abstract form 1970 - 1976 CONFIDENTIAL - All information which would permit identification of an individual or of an establishment will be held confidential, will be used only by persons engaged in and for the purposes of the survey, and will not be disclosed or released to other persons or used for any other purpose. FORM HDS-1 DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE (12-13-76) PUBLIC HEALTH SERVICE HEALTH RESOURCES ADMINISTRATION NATIONAL CENTER FOR HEALTH STATISTICS MEDICAL ABSTRACT - HOSPITAL DISCHARGE SURVEY A. PATIENT IDENTIFICATION 1. Hospital number 4. Date of admission 2. HDS number 5. Date of discharge 3. Medical Record no. 6. Residence ZIP Code B. PATIENT CHARACTERISTICS 7. Date of birth 8. Age (Complete only if Date of Birth not given) Units 1 Years 2 Months 3 Days 9. Sex (Mark one) 1 Male 2 Female 3 Not stated 10. Race or Color (Mark one) 1 White 2 Black 3 Other 4 Not stated 11. Marital Status (Mark one) 1 Married 2 Single 3 Widowed 4 Divorced 5 Separated 6 Not stated 12. Expected Source(s) of payment Principal Other (Mark one) (Mark all that apply) 1 Self-pay 2 Workmen's Compensation 3 Medicare 4 Medicaid 5 Other government payments 6 Blue Cross 7 Other private or commercial insurance 8 No charge 9 Other (Specify) 10 Not stated 13. Disposition of Patient (Mark one) 1 Routine discharge/discharged home 2 Left against medical advise 3 Discharged/transferred to another facility or organization 4 Discharged/referred to organized home care service 5 Died 6 Not stated C. DIAGNOSES Principal: Other/additional: D. SURGICAL AND DIAGNOSTIC PROCEDURES Date Month Day Year Principal: Other/additional: __NONE Completed by Date *U.S. GOVERNMENT PRINTING OFFICE: 1976-738-230 Figure 2. Medical Abstract for the Hospital Discharge Survey 1977 - 1978RECORD LAYOUT 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 NMF I and the hospital interview are alternate sources of data, while the computer generates other items. Tape Record Format of the NHDS (1970-1978) DATA ITEMS TAPE LOCATION Sample Frame 1 1=Admission List 2=Discharge List 2-3 Year (Added at CDC) 4 Panel Number DATA ITEMS TAPE LOCATION Panel Number 4 Codes range from 0 to 6 5-8 Hospital Number 9-10 Control Month DATA ITEMS TAPE LOCATION Control Month This code is either the Month of Admission 9-10 or Discharge depending upon the Sample Frame used in a hospital as coded in location 1 11-12 Blank 13-14 Century of Birth (18 or 19) 15-18 HDS Number DATA ITEMS TAPE LOCATION HDS Number This is the identifying Number assigned to 15-18 each discharge. This number in combination with the Hospital Number identifies a tape record. 19-24 Medical Record Number DATA ITEMS TAPE LOCATION Medical Record Number This is the Hospital Number for each discharge 19-24 25-30 Date of Birth DATA ITEMS TAPE LOCATION Date of Birth This item is used to calculate age at date of (25-30) admission, if it passes the edit.(This item appears in the output record as it was in the input record except in the case of month imputed as 06 and/or day imputed as 15.) Month 25-26 Day 27-28 Year 29-30 1970 00-70=1900-1970 71-99=1871-1899 1971 00-71=1900-1971 72-99=1872-1899 1972 00-72=1900-1972 73-99=1873-1899 1973 00-73=1900-1973 74-99=1874-1899 1974 00-74=1900-1974 75-99=1875-1899 1975 00-75=1900-1975 76-99=1876-1899 1976 00-76=1900-1976 77-99=1877-1899 1977 00-77=1900-1977 78-99=1878-1899 1978 00-78=1900-1978 79-99=1879-1899 31-33 Age DATA ITEMS TAPE LOCATION Age 31-33 Number (location 31-32) Units (location 33) 01-99................................1=Years 01-11................................2=Months 00-28................................3=Days 34 Sex DATA ITEMS TAPE LOCATION Sex 1=Male 34 2=Female 3=Not reported 35 Race DATA ITEMS TAPE LOCATION Race (Codes changed in 1977) 35 (1970-1976) 1=White (Includes Mexican & Puerto Rican) 2=Black 3=Other Nonwhite 4="Nonwhite" (including Black & other nonwhite) 5=Not stated 6=Unknown (1977-1978) 1=White 2=Black 3=Other 4=Not stated 9=Unknown 36 Marital Status DATA ITEMS TAPE LOCATION Marital Status 36 1=Married 2=Single 3=Widowed 4=Divorced 5=Separated 6=Not stated 7=Unknown 37-41 Date of Admission DATA ITEMS TAPE LOCATION Date of Admission* (37-41) Month 01-12 January - December 37-38 Day 01-31 39-40 Year (Last digit of year) 41 *Imputed according to age if invalid or blank 42-46 Date of Discharge DATA ITEMS TAPE LOCATION Date of Discharge* (42-46) Month** 42-43 Day** 44-45 Year (Last digit of year) 46 *Imputed according to age if invalid or blank **Same codes as for Date of Admission 47 Discharge Status DATA ITEMS TAPE LOCATION Discharge Status (Codes changed in 1977) 47 (1970-1976) 1=Alive 2=Dead 3=Not reported (1977-1978) 1=Routine discharge/discharged home 2=Left against medical advice 3=Discharged/transferred to another facility or organization 4=Discharged/referred to organized home care 5=Died 6=Not stated 48-67 Diagnostic Codes DATA ITEMS TAPE LOCATION Diagnostic Codes (48-67) There are from one to five 4-digit diagnostic codes located in positions specified below. Diagnoses are coded according to the INTERNATIONAL CLASSIFICATION OF DISEASES ADAPTED FOR USE IN THE UNITED STATES (EIGHTH REVISION) with certain modifications for the Hospital Discharge Survey. (See "Medical "Medical Coding and Edit," Section II in text, and Appendix B.) Diagnostic Code 1 48-51 Diagnostic Code 2 52-55 Diagnostic Code 3 56-59 Diagnostic Code 4 60-63 Diagnostic Code 5 64-67 68 Blank 69-77 Surgical Codes DATA ITEMS TAPE LOCATION Surgical Codes (69-77) There are from one to three 3-digit surgical codes located in positions specified below. Operations are coded according to the INTERNATIONAL CLASSIFICATION OF DISEASES ADAPTED FOR USE IN THE modifications for the Hospital Discharge Survey. (This item may be blank) (See "Medical Coding and Edit," Section II in text, and Appendix B.) Surgical Code 1 69-71 Surgical Code 2 72-74 Surgical Code 3 75-77 78-81 Length of Stay in Days DATA ITEMS TAPE LOCATION Length of Stay in Days 78-81 This item was generated in the computer on the basis of Date of Admission and Date of Discharge. In case of missing data for these items, this was imputed according to age. Codes range from 0000 to 0730. 82-83 Length of Stay Recode #1 DATA ITEMS TAPE LOCATION Length of Stay Recode #1 (Computer Generated) 82-83 00-30=0-30 days 31=31 days and over 84-85 Age Recode DATA ITEMS TAPE LOCATION Age Recode (Computer Generated) 84-85 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 Recode DATA ITEMS TAPE LOCATION Race Recode (Computer Generated) 86 (Codes changed in 1977) (1970-1976) 1=White (Code 1 in col. 35) 2=Nonwhite (Codes 2,3,4 in col. 35) 3=Not stated (Codes 5,6 in col. 35) (1977-1978) 1=White (Code 1 in col. 35) 2=Nonwhite (Codes 2,3 in col. 35) 3=Not stated (Codes 4,9 in col. 35) 87 Marital Status Recode DATA ITEMS TAPE LOCATION Marital Status Recode (Computer Generated) 87 1=Married (Codes 1,5 in col. 36) 2=Not Married (Codes 2,3,4 in col. 36) 3=Not stated (Codes 6,7 in col. 36) 88 Length of Stay Recode #2 DATA ITEMS TAPE LOCATION Length of Stay Recode #2 (Computer Generated) 88 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 DATA ITEMS TAPE LOCATION Geographic Region (MFI) 91 (See "Sampling Frame and Size of Sample," Section I in text.) 1=Northeast 2=North Central 3=South 4=West 92 Blank 93 Geographic Region Census Divisions DATA ITEMS TAPE LOCATION Geographic Region (MFI) Census Divisions 93 (See "Sampling Frame and Size of Sample," Section I in text.) 1=New England 2=Middle Atlantic NE Region 3=East North Central 4=West North Central NC Region 5=South Atlantic 6=East South Central 7=West South Central South Region 8=Mountain 9=Pacific West Region 94-98 Number of Beds - Interview DATA ITEMS TAPE LOCATION Number of Beds - Interview 94-98 (Blank beginning with '77 data) 99 Stratum DATA ITEMS TAPE LOCATION Stratum - Interview-Number of Beds Recode 99 (Computer Generated) 1=6-49 beds 2=50-99 beds 3=100-199 beds 4=200-299 beds 5=300-499 beds 6=500-999 beds 7=1000 beds or more 100 Hospital Ownership - Interview DATA ITEMS TAPE LOCATION Hospital Ownership - Interview 100 1=Proprietary 2=Church 3=Government (Non-federal - City,County & State) 4=Nonprofit, excluding Church 101-104 Length of Stay in Days DATA ITEMS TAPE LOCATION Length of Stay in Days 101-104 Date in 1978-81 has been transferred to this data field, with 0000 days recoded to 0001. 105-110 Blank 111-115 Weight DATA ITEMS TAPE LOCATION Weight 111-115 Final Adjusted Weight (Whole Number Used in Table Preparation) 116-130 Blank 131,133-136 Expected Source of Payment DATA ITEMS TAPE LOCATION Expected Source of Payment (ESOP) 131,133-136 (Effective beginning with '77 data) Column 131 represents Principal ESOP and columns 133-136 represent Other ESOP. All five ESOP positions are coded as follows: 1=Self-pay 2=Workmen's Compensation 3=Medicare 4=Medicaid 5=Other government payments 6=Blue Cross 7=Other private or commercial insurance 8=No charge 9=Other 0=Not stated Tape Record Format of the NHDS (1979-1985) 1 Sample Frame Item Tape Number of Number Location Positions Item Description and Codes 1 1 1 Sample Frame 1: Admission List 2: Discharge List 2-3 Year Item Tape Number of Number Location Positions Item Description and Codes 2 2-3 2 Year (Added to tape at CDC) 79 - 85 4 Blank 5-7 Diagnosis-Related Group Code Item Tape Number of Number Location Positions Item Description and Codes 3 5-7 3 Diagnosis-Related Group Code (See text section, "Diagnosis-Related Groups") BLANK FOR YEARS 1979-81 8 Blank 9-10 Control Month Item Tape Number of Number Location Positions Item Description and Codes 4 9-10 2 Control Month This code is either the month of admission or discharge depending upon the sample frame used in a hospital as coded in Location 1. 01: January through 12: December 11-12 Blank 13-14 Century of Birth (18 or 19) 15-24 Blank 25-30 Date of Birth Item Tape Number of Number Location Positions Item Description and Codes 6 25-30 6 Date of Birth This item is used to calculate age at date of admission, if it passes the edit.(This item appears in the output record as it was in the input record except in the case of month imputed as 06 and/or day imputed as 15.) 6.1 25-26 2 Month of Birth 6.2 27-28 2 Day of Birth 6.3 29-30 2 Year of Birth 00-85: 1900-1985 86-99: 1886-1899 31-33 Age Item Tape Number of Number Location Positions Item Description and Codes 7 31-33 3 Age Units Number (Location 33) (Location 31-32) 1: Years 01-99 2: Months 01-11 3: Days 00-28 34 Sex Item Tape Number of Number Location Positions Item Description and Codes 8 34 1 Sex 1: Male 2: Female 35 Race Item Tape Number of Number Location Positions Item Description and Codes 35 1 Blank for Years 1981-1985 Race for 1979 1: White 2: Black 3: Other/not stated 36 Marital Status Item Tape Number of Number Location Positions Item Description and Codes 9 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 10 37-41 5 Date of Admission (Imputed according to age if invalid or blank.) 10.1 37-38 2 Month of Admission 01: January through 12: December 10.2 39-40 2 Day of Admission 01-31 10.3 41 1 Year of Admission 9: 1979 0: l980 1: 1981 2: l982 3: 1983 4: l984 5: 1985 42-46 Date of Discharge Item Tape Number of Number Location Positions Item Description and Codes 11 42-46 5 Date of Discharge (Imputed according to age if invalid or blank.) 11.1 42-43 2 Month of Discharge 01: January through 12: December 11.2 44-45 2 Day of Discharge 01-31 11.3 46 1 Year of Discharge 9: 1979 0: l980 1: 1981 2: l982 3: l983 4: l984 5: l985 6: l986 47 Discharge Status Item Tape Number of Number Location Positions Item Description and Codes 12 47 1 Discharge Status (1979-1980) 1: Routine Discharge/Discharged Home 2: Left Against Medical Advice 3: Discharged/Transferred to Another Facility/Organization 4: Discharged/Referred to Organized Home Care Service 5: Dead 6: Not Stated 9: Not Stated (1981-1985) 1: Routine Discharge/Discharged Home 2: Left Against Medical Advice 3: Discharged/Transferred to Another Facility/Organization 4: Discharged/Referred to Organized Home Care Service 5: Alive, Disposition Not Stated 6: Dead 7: Not Stated 48 Blank 49 Age Recode Item Tape Number of Number Location Positions Item Description and Codes 13 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 14 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 15 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 16 52-56 5 Date of Surgery #3 16.1 52-53 2 Month of Surgery 01-12 16.2 54-55 2 Day of Surgery 01-31 16.3 56 1 Year of Surgery 9: 1979 0: l980 1: l981 2: 1982 3: l983 4: l984 5: l985 6: l986 57-61 Date of Surgery #4 Item Tape Number of Number Location Positions Item Description and Codes 17 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 18 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.In case of blank or invalid date of admission and/or date of discharge, this item was imputed according to age. Codes range from 0000 to 0730. 82-83 Length of Stay Recode #1 Item Tape Number of Number Location Positions Item Description and Codes 19 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 Item Tape Number of Number Location Positions Item Description and Codes 20 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 Recode Item Tape Number of Number Location Positions Item Description and Codes 21 86 1 Race Recode (Computer Generated) (1979 only) 1: White 2: All Other 3: Not Stated (1980-1985) 1: White 2: Black 3: American Indian/Eskimo/Aleut 4: Asian/Pacific Islander 5: Other 6: Not Stated 87 Marital Status Recode Item Tape Number of Number Location Positions Item Description and Codes 22 87 1 Marital Status Recode (Computer Generated) 1: Married 2: Not Married 3: Not Stated 88 Length of Stay Recode #2 Item Tape Number of Number Location Positions Item Description and Codes 23 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 Blank 90 Number of Beds Recode Item Tape Number of Number Location Positions Item Description and Codes 90 1 Number of Beds Recode (NMFI) (For 1979 ONLY--Years 1980-85 BLANK) 1: 6-49 Beds 2: 50-99 Beds 3: 100-199 Beds 4: 200-299 Beds 5: 300-499 Beds 6: 500-999 Beds 7: 1,000 Beds or More 91 Geographic Region (NMFI) Item Tape Number of Number Location Positions Item Description and Codes 24 91 1 Geographic Region (NMFI) 1: Northeast 2: North Central 3: South 4: West 92 Hospital Ownership (NMFI) Item Tape Number of Number Location Positions Item Description and Codes 92 1 Blank for Years 1980-85 Hospital Ownership (NMFI) (1979 ONLY) 1: Proprietary 2: Church 3: Government 4: Nonprofit, Excluding Church 93 Geographic Division Item Tape Number of Number Location Positions Item Description and Codes 25 93 1 Geographic Division Northeast Region 1: New England 2: Middle Atlantic North Central Region 3: East North Central 4: West North Central South Region 5: South Atlantic 6: East South Central 7: West South Central West Region 8: Mountain 9: Pacific 94-98 Blank 99 Number of Beds Recode Item Tape Number of Number Location Positions Item Description and Codes 26 99 1 Number of Beds Recode (Interview) 1: 6-49 Beds 2: 50-99 Beds 3: 100-199 Beds 4: 200-299 Beds 5: 300-499 Beds 6: 500-999 Beds 7: 1,000 Beds or More 100 Hospital Ownership Item Tape Number of Number Location Positions Item Description and Codes 27 100 1 Hospital Ownership (Interview) 1: Proprietary 2: Church 3: Government 4: Nonprofit, Excluding Church 101-104 Length of Stay in Days Item Tape Number of Number Location Positions Item Description and Codes 28 101-104 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 29 111-115 5 Weight Final Adjusted Weight (whole number--used in table preparation) 116-130 Blank 131-136 Expected Source(s) of Payment Item Tape Number of Number Location Positions Item Description and Codes 30 131-136 6 Expected Source(s) of Payment 30.1 131 1 Principal No. 1 30.2 132 1 Principal No. 2 30.3 133 1 Other No. 1 30.4 134 1 Other No. 2 30.5 135 1 Other No. 3 30.6 136 1 Other No. 4 Code Source of Payment (Years 1979-1980) l: Self-Pay 2: Workman's Compensation 3: Medicare 4: Medicaid 5: Other Government Payment 6: Blue Cross 7: Other Private or Commercial Insurance 8: No Charge 9: Other 0: Not Stated Code Source of Payment (Years 1981-1985) l: Workmen's Compensation 2: Medicare 3: Medicaid 4: Title V 5: Other Government Payment 6: Blue Cross 7: Other Private Insurance 8: Self-Pay 9: No Charge 0: Other or Not Stated 137-141 Date of Surgery #1 Item Tape Number of Number Location Positions Item Description and Codes 31 137-141 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 32 142-146 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 33 149-183 35 Diagnostic Codes** (Five-Digit Codes) 33.1 149-153 5 Diagnosis No. 1 33.2 154-158 5 Diagnosis No. 2 33.3 159-163 5 Diagnosis No. 3 33.4 164-168 5 Diagnosis No. 4 33.5 169-173 5 Diagnosis No. 5 33.6 174-178 5 Diagnosis No. 6 33.7 179-183 5 Diagnosis No. 7 184-199 Surgical Codes Item Tape Number of Number Location Positions Item Description and Codes 34 184-199 16 Surgical Codes** (Four-Digit Codes) 34.1 184-187 4 Surgery No. 1 34.2 188-191 4 Surgery No. 2 34.3 192-195 4 Surgery No. 3 34.4 196-199 4 Surgery No. 4 200 Blank General Information For 1979-1981 Diagnostic codes and Surgical codes are in compliance with the new International Classification of Diseases--9th Revision- Clinical Modification (ICD-9-CM). All codes are left justified. The symbol, "-", a dash, is used to fill all fourth and fifth spaces where three or four digit diagnostic codes are used and to fill all fourth spaces where three digit surgical codes are used.Codes can be preceded by the following symbols: In Text On Tape File E appears as ) V appears as = Effective with 1982 data, there are no longer any dashes ("-") in spaces where subcodes are not used. These locations are now blank. Also E and V codes are punched as such -- not indicated by symbols as on previous tapes. Codes are in compliance with the ICD-9-CM. Tape Record Format of the NHDS - 1986 1-2 Year 86 or 87 Item Tape Number of Number Location Positions Item Description and Codes 1-2 2 YEAR 86 OR 87 3 Discharge Status Recode Item Tape Number of Number Location Positions Item Description and Codes 1 3 l Discharge Status Recode l: Alive 2: Dead 3: Not Stated 4-12 Blank 13-14 Century of Birth Item Tape Number of Number Location Positions Item Description and Codes 2 13-14 2 Century of Birth (18 or 19) 15-24 Blank 25-30 Date of Birth Item Tape Number of Number Location Positions Item Description and Codes 3 25-30 6 Date of Birth This item is used to calculate age at date of admission, if it passes the edit.(This item appears in the output record as it was in the input record except in the case of month imputed as 06 and/or day imputed as 15.) 3.1 25-26 2 Month of Birth 3.2 27-28 2 Day of Birth 3.3 29-30 2 Year of Birth 00-87: 1900-1987 87-99: 1887-1899 31-33 Age Item Tape Number of Number Location Positions Item Description and Codes 4 31-33 3 Age Units Number (Location 33) (Location 31-32) 1: Years 01-99 2: Months 01-11 3: Days 00-28 34 Sex Item Tape Number of Number Location Positions Item Description and Codes 5 34 1 Sex 1: Male 2: Female 35 Blank 36 Marital Status Item Tape Number of Number Location Positions Item Description and Codes 6 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 7 37-41 5 Date of Admission (Imputed according to age if invalid or blank.) 7.1 37-38 2 Month of Admission 01: January through 12: December 7.2 39-40 2 Day of Admission 01-31 7.3 41 1 Year of Admission 5: 1985 6: l986 42-46 Date of Discharge Item Tape Number of Number Location Positions Item Description and Codes 8 42-46 5 Date of Discharge (Imputed according to age if invalid or blank.) 8.1 42-43 2 Month of Discharge 01: January through 12: December 8.2 44-45 2 Day of Discharge 01-31 8.3 46 1 Year of Discharge 6: 1986 7: l987 47 Discharge Status Item Tape Number of Number Location Positions Item Description and Codes 9 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, DispositionNot Stated 6: Dead 7: Status Not Stated 48 Blank 49 Age Recode Item Tape Number of Number Location Positions Item Description and Codes 10 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 11 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 14 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 15 52-56 5 Date of Surgery #3 15.1 52-53 2 Month of Surgery 01-12 15.2 54-55 2 Day of Surgery 01-31 15.3 56 1 Year of Surgery 5: 1985 6: l986 7: l987 57-61 Date of Surgery #4 Item Tape Number of Number Location Positions Item Description and Codes 14 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 15 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.In case of blank or invalid date of admission and/or date of discharge, this item was imputed according to age. Codes range from 0000 to 0730. 82-83 Length of Stay Recode #1 Item Tape Number of Number Location Positions Item Description and Codes 16 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 Item Tape Number of Number Location Positions Item Description and Codes 17 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 18 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 Item Tape Number of Number Location Positions Item Description and Codes 19 87 1 Marital Status Recode (Computer Generated) 1: Married 2: Not Married 3: Not Stated 88 Length of Stay Recode #2 Item Tape Number of Number Location Positions Item Description and Codes 20 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 (NMFI) Item Tape Number of Number Location Positions Item Description and Codes 21 91 1 Geographic Region (NMFI) 1: Northeast 2: Midwest 3: South 4: West 92 Blank 93 Geographic Division Item Tape Number of Number Location Positions Item Description and Codes 22 93 1 Geographic Division Northeast Region 1: New England 2: Middle Atlantic Midwest Region 3: East North Central 4: West North Central South Region 5: South Atlantic 6: East South Central 7: West South Central West Region 8: Mountain 9: Pacific 94-98 Blank 99 Number of Beds Recode Item Tape Number of Number Location Positions Item Description and Codes 23 99 1 Number of Beds Recode (Interview) 1: 6-49 Beds 2: 50-99 Beds 3: 100-199 Beds 4: 200-299 Beds 5: 300-499 Beds 6: 500-999 Beds 7: 1,000 Beds or More 100 Hospital Ownership (Interview) Item Tape Number of Number Location Positions Item Description and Codes 24 100 1 Hospital Ownership (Interview) 1: Proprietary 2: Church 3: Government 4: Nonprofit, Excluding Church 101-104 Length of Stay in Days Item Tape Number of Number Location Positions Item Description and Codes 25 101-104 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 26 111-115 5 Weight Final Adjusted Weight (whole number--used in table preparation) 116-130 Blank 131-136 Expected Source(s) of Payment Item Tape Number of Number Location Positions Item Description and Codes 27 131-136 6 Expected Source(s) of Payment 27.1 131 1 Principal 27.2 132 1 Other 27.3 133 1 Other 27.4 134 1 Other 27.5 135 1 Other 27.6 136 1 Other Code Source of Payment 1: Workmen's Compensation 2: Medicare 3: Medicaid 4 or 5: Other Government Payment 6: Blue Cross 7: Other Private or 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 28 137-141 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 29 142-146 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 30 149-183 35 Diagnostic Codes** (Five-Digit Codes) 30.1 149-153 5 Diagnosis No. 1 30.2 154-158 5 Diagnosis No. 2 30.3 159-163 5 Diagnosis No. 3 30.4 164-168 5 Diagnosis No. 4 30.5 169-173 5 Diagnosis No. 5 30.6 174-178 5 Diagnosis No. 6 30.7 179-183 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 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 31 184-199 16 Surgical Codes** (Four-Digit Codes) 31.1 184-187 4 Surgery No. 1 31.2 188-191 4 Surgery No. 2 31.3 192-195 4 Surgery No. 3 31.4 196-199 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 and between positions 2 and 3 for each surgical code. 200 Blank 201-203 DRGs 1-470, Grouper 2.0, Federal Register Item Tape Number of Number Location Positions Item Description and Codes 32 201-203 3 DRGs 1-470, Grouper 2.0, Federal Register Thursday, September 1, 1983 204-206 DRGs 1-471, Grouper 3.0, Federal Register Item Tape Number of Number Location Positions Item Description and Codes 33 204-206 3 DRGs 1-471, Grouper 3.0, Federal Register Tuesday, September 3, 1985 207-209 DRGs 1-473, Grouper 4.0, Federal Register Item Tape Number of Number Location Positions Item Description and Codes 34 207-209 3 DRGs 1-473, Grouper 4.0, Federal Register Wednesday, September 3, 1986 210-212 DRGa 1-475, Grouper 5.0, Federal Register Item Tape Number of Number Location Positions Item Description and Codes 35 210-212 3 DRGS 1-475, GROUPER 5.0, FEDERAL (NEW WITH '87 DATA) REGISTER WEDNESDAY, SEPTEMBER 1, 1987TABLES ON CIVILIAN NONINSTITUTIONALIZED POPULATION Civ. Noninst. Pop'n by Age & Sex for Regions & Divisions:U.S.,1970 (Rounded to thousands) Total Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 199,574 57,705 81,174 41,478 19,218 Northeast 48,380 13,294 19,312 10,811 4,963 North Central 55,893 16,432 22,592 11,399 5,470 South 61,338 18,071 25,051 12,397 5,818 West 33,964 9,909 14,219 6,870 2,967 New England 11,638 3,292 4,638 2,502 1,205 Middle Atlantic 36,742 10,001 14,673 8,309 3,758 East North Central 39,860 11,793 16,288 8,138 3,641 West North Central 16,033 4,639 6,304 3,261 1,829 South Atlantic 29,824 8,652 12,212 6,129 2,832 East South Central 12,591 3,722 5,097 2,544 1,229 West South Central 18,923 5,698 7,742 3,725 1,758 Mountain 8,129 2,535 3,376 1,548 671 Pacific 25,834 7,374 10,843 5,322 2,296 Male Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 95,978 29,391 38,750 19,746 8,091 Northeast 23,154 6,782 9,235 5,094 2,043 North Central 27,116 8,378 10,933 5,481 2,325 South 29,280 9,186 11,801 5,838 2,455 West 16,428 5,045 6,782 3,333 1,268 New England 5,576 1,681 2,229 1,183 483 Middle Atlantic 17,578 5,101 7,006 3,911 1,560 East North Central 19,352 6,010 7,889 3,912 1,541 West North Central 7,764 2,367 3,044 1,569 784 South Atlantic 14,160 4,397 5,701 2,871 1,191 East South Central 6,033 1,894 2,423 1,197 519 West South Central 9,087 2,895 3,677 1,771 745 Mountain 3,961 1,290 1,614 755 302 Pacific 12,467 3,756 5,168 2,578 966 Female Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 103,596 28,314 42,423 21,732 11,127 Northeast 25,226 6,512 10,077 5,717 2,920 North Central 28,776 8,054 11,659 5,918 3,145 South 32,058 8,885 13,250 6,559 3,363 West 17,536 4,863 7,437 3,537 1,698 New England 6,063 1,612 2,410 1,319 722 Middle Atlantic 19,164 4,901 7,667 4,398 2,198 East North Central 20,508 5,782 8,399 4,227 2,100 West North Central 8,268 2,271 3,260 1,692 1,045 South Atlantic 15,664 4,255 6,511 3,258 1,640 East South Central 6,558 1,828 2,674 1,347 710 West South Central 9,836 2,803 4,065 1,954 1,013 Mountain 4,169 1,245 1,762 793 369 Pacific 13,367 3,618 5,675 2,744 1,330 Civ. Noninst. Pop'n by Age & Sex for Regions & Divisions:U.S.,1971 (Rounded to thousands) Total Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 202,090 57,368 83,252 41,891 19,579 Northeast 48,818 13,216 19,708 10,863 5,031 North Central 56,310 16,267 23,076 11,440 5,527 South 62,376 17,984 25,795 12,606 5,991 West 34,586 9,900 14,673 6,982 3,030 New England 11,775 3,281 4,753 2,521 1,219 Middle Atlantic 37,043 9,935 14,955 8,342 3,811 East North Central 40,127 11,673 16,617 8,166 3,672 West North Central 16,183 4,595 6,460 3,274 1,855 South Atlantic 30,384 8,625 12,581 6,253 2,926 East South Central 12,778 3,691 5,243 2,582 1,262 West South Central 19,214 5,669 7,971 3,771 1,803 Mountain 8,389 2,561 3,532 1,598 698 Pacific 26,197 7,339 11,141 5,384 2,332 Male Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 97,330 29,227 39,992 19,912 8,199 Northeast 23,400 6,744 9,486 5,111 2,059 North Central 27,358 8,296 11,237 5,491 2,334 South 29,818 9,145 12,228 5,929 2,516 West 16,754 5,042 7,041 3,381 1,290 New England 5,652 1,676 2,299 1,192 486 Middle Atlantic 17,748 5,068 7,188 3,919 1,573 East North Central 19,511 5,950 8,099 3,917 1,544 West North Central 7,847 2,345 3,139 1,574 790 South Atlantic 14,445 4,385 5,909 2,926 1,226 East South Central 6,131 1,879 2,509 1,213 530 West South Central 9,242 2,881 3,811 1,790 760 Mountain 4,092 1,304 1,698 778 313 Pacific 12,662 3,739 5,343 2,604 977 Female Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 104,760 28,141 43,259 21,979 11,380 Northeast 25,418 6,472 10,222 5,752 2,972 North Central 28,952 7,971 11,839 5,949 3,193 South 32,558 8,839 13,567 6,677 3,475 West 17,832 4,858 7,632 3,601 1,741 New England 6,123 1,606 2,454 1,329 733 Middle Atlantic 19,295 4,866 7,768 4,423 2,238 East North Central 20,616 5,722 8,518 4,248 2,128 West North Central 8,335 2,249 3,321 1,700 1,065 South Atlantic 15,939 4,240 6,672 3,328 1,700 East South Central 6,647 1,812 2,734 1,369 732 West South Central 9,972 2,788 4,160 1,981 1,043 Mountain 4,297 1,258 1,833 821 385 Pacific 13,535 3,601 5,799 2,780 1,355 Civ. Noninst. Pop'n by Age & Sex for Regions & Divisions:U.S.,1972 (Consistent with Current Population Reports Series P-25, No.500.) (Numbers in thousands) Total Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 204,229 56,609 85,445 42,248 19,927 Northeast 49,011 12,949 20,070 10,957 5,035 North Central 56,727 15,963 23,678 11,509 5,576 South 63,357 17,901 26,570 12,685 6,201 West 35,134 9,795 15,127 7,097 3,114 New England 11,860 3,213 4,878 2,544 1,225 Middle Atlantic 37,151 9,736 15,192 8,413 3,810 East North Central 40,415 11,460 17,019 8,224 3,712 West North Central 16,312 4,504 6,659 3,285 1,864 South Atlantic 30,917 8,578 12,971 6,312 3,056 East South Central 12,895 3,662 5,374 2,569 1,290 West South Central 19,545 5,662 8,225 3,804 1,855 Mountain 8,652 2,581 3,707 1,642 723 Pacific 26,481 7,215 11,420 5,456 2,391 Male Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 98,511 28,844 41,313 20,054 8,300 Northeast 23,526 6,608 9,720 5,147 2,052 North Central 27,612 8,143 11,607 5,517 2,345 South 30,324 9,104 12,678 5,956 2,586 West 17,050 4,990 7,309 3,434 1,317 New England 5,698 1,640 2,374 1,199 486 Middle Atlantic 17,827 4,968 7,346 3,948 1,565 East North Central 19,688 5,843 8,349 3,941 1,555 West North Central 7,924 2,300 3,257 1,576 791 South Atlantic 14,714 4,361 6,134 2,948 1,271 East South Central 6,196 1,865 2,587 1,205 539 West South Central 9,414 2,878 3,957 1,803 777 Mountain 4,230 1,314 1,795 798 322 Pacific 12,820 3,676 5,514 2,635 995 Female Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions Ages years years years and over UNITED STATES 105,718 27,764 44,133 22,194 11,627 Northeast 25,485 6,341 10,351 5,810 2,984 North Central 29,115 7,821 12,072 5,992 3,231 South 33,033 8,797 13,893 6,729 3,615 West 18,084 4,805 7,818 3,664 1,797 New England 6,162 1,573 2,505 1,345 739 Middle Atlantic 19,324 4,768 7,846 4,464 2,245 East North Central 20,726 5,617 8,669 4,283 2,158 West North Central 8,389 2,204 3,402 1,709 1,073 South Atlantic 16,203 4,216 6,837 3,364 1,786 East South Central 6,699 1,797 2,787 1,364 751 West South Central 10,131 2,784 4,268 2,001 1,078 Mountain 4,423 1,267 1,911 843 401 Pacific 13,661 3,538 5,906 2,820 1,397 Civ. Noninst. Pop'n by Age & Sex for Regions & Divisions:U.S.,1973 (Numbers in thousands) Total Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 205,836 55,559 87,342 42,641 20,294 Northeast 48,940 12,565 20,327 10,957 5,087 North Central 56,772 15,538 24,081 11,517 5,636 South 64,499 17,791 27,379 12,951 6,378 West 35,625 9,666 15,554 7,214 3,191 New England 11,915 3,127 4,988 2,554 1,246 Middle Atlantic 37,025 9,438 15,339 8,405 3,843 East North Central 40,382 11,136 17,273 8,219 3,754 West North Central 16,391 4,402 6,809 3,298 1,882 South Atlantic 31,621 8,539 13,424 6,492 3,166 East South Central 13,067 3,605 5,510 2,606 1,316 West South Central 19,810 5,617 8,440 3,852 1,896 Mountain 8,952 2,606 3,894 1,706 746 Pacific 26,673 7,560 11,660 5,508 2,445 Male Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 99,307 28,313 42,253 20,310 8,451 Northeast 23,494 6,413 9,849 5,165 2,067 North Central 27,640 7,926 11,811 5,540 2,363 South 30,878 9,049 13,072 6,102 2,655 West 17,294 4,925 7,520 3,503 1,346 New England 5,725 1,597 2,428 1,207 493 Middle Atlantic 17,769 4,816 7,421 3,958 1,574 East North Central 19,676 5,678 8,479 3,952 1,567 West North Central 7,963 2,248 3,332 1,587 796 South Atlantic 15,052 4,342 6,353 3,043 1,314 East South Central 6,281 1,851 2,654 1,227 549 West South Central 9,544 2,855 4,065 1,832 792 Mountain 4,379 1,327 1,887 833 332 Pacific 12,916 3,598 5,633 2,670 1,015 Female Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 106,529 27,246 45,088 22,331 11,862 Northeast 25,444 6,151 10,478 5,793 3,022 North Central 29,131 7,612 12,270 5,977 3,272 South 33,621 8,742 14,307 6,849 3,723 West 18,331 4,741 8,033 3,712 1,845 New England 6,189 1,530 2,560 1,346 753 Middle Atlantic 19,256 4,622 7,988 4,447 2,269 East North Central 20,704 5,457 8,794 4,267 2,186 West North Central 8,426 2,154 3,476 1,710 1,086 South Atlantic 16,570 4,197 7,071 3,450 1,852 East South Central 6,786 1,784 2,856 1,379 767 West South Central 10,265 2,761 4,380 2,020 1,104 Mountain 4,573 1,279 2,006 874 414 Pacific 13,757 3,462 6,027 2,838 1,430 Civ. Noninst. Pop'n by Age & Sex for Regions & Divisions:U.S.,1974 (Numbers in thousands) Total Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 207,386 54,479 89,271 42,884 20,751 Northeast 48,716 12,148 20,515 10,897 5,155 North Central 56,705 15,076 24,452 11,472 5,705 South 65,647 17,668 28,220 13,163 6,597 West 36,318 9,588 16,084 7,353 3,293 New England 11,943 3,036 5,085 2,554 1,268 Middle Atlantic 36,773 9,112 15,430 8,343 3,887 East North Central 40,337 10,814 17,531 8,192 3,801 West North Central 16,368 4,262 6,921 3,280 1,905 South Atlantic 32,351 8,502 13,906 6,648 3,296 East South Central 13,162 3,580 5,619 2,612 1,350 West South Central 20,134 5,586 8,694 3,904 1,951 Mountain 9,216 2,619 4,062 1,758 778 Pacific 27,101 6,969 12,022 5,595 2,516 Male Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 100,067 27,774 43,275 20,431 8,587 Northeast 23,387 6,203 9,961 5,138 2,085 North Central 27,614 7,694 12,018 5,519 2,383 South 31,430 8,990 13,502 6,204 2,735 West 17,636 4,887 7,794 3,571 1,384 New England 5,739 1,552 2,481 1,208 499 Middle Atlantic 17,648 4,651 7,480 3,930 1,586 East North Central 19,661 5,516 8,624 3,940 1,581 West North Central 7,953 2,177 3,395 1,579 802 South Atlantic 15,399 4,325 6,595 3,116 1,362 East South Central 6,327 1,824 2,713 1,230 561 West South Central 9,704 2,841 4,194 1,857 812 Mountain 4,509 1,334 1,973 858 344 Pacific 13,126 3,553 5,821 2,713 1,040 Female Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 107,318 26,706 45,996 22,453 12,163 Northeast 25,328 5,945 10,554 5,760 3,070 North Central 29,091 7,382 12,434 5,952 3,322 South 34,217 8,678 14,718 6,959 3,862 West 18,682 4,701 8,290 3,782 1,909 New England 6,204 1,485 2,604 1,346 768 Middle Atlantic 19,125 4,460 7,950 4,413 2,302 East North Central 20,677 5,297 8,908 4,252 2,220 West North Central 8,414 2,085 3,527 1,701 1,102 South Atlantic 16,952 4,177 7,311 3,531 1,933 East South Central 6,835 1,756 2,907 1,382 790 West South Central 10,430 2,745 4,500 2,046 1,139 Mountain 4,707 1,285 2,089 900 433 Pacific 13,975 3,416 6,201 2,882 1,476 Civ. Noninst. Pop'n by Age & Sex for Regions & Divisions:U.S.,1975 (Numbers in thousands) Total Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 209,095 53,514 91,166 43,109 21,305 Northeast 48,745 11,821 20,792 10,880 5,253 North Central 56,820 14,701 24,870 11,452 5,797 South 66,581 17,481 28,948 13,314 6,838 West 36,948 9,511 16,556 7,463 3,418 New England 11,990 2,953 5,191 2,554 1,291 Middle Atlantic 36,755 8,867 15,601 8,325 3,962 East North Central 40,444 10,559 17,831 8,190 3,864 West North Central 16,376 4,142 7,039 3,261 1,933 South Atlantic 32,861 8,399 14,279 6,737 3,446 East South Central 13,318 3,543 5,754 2,635 1,385 West South Central 20,402 5,538 8,914 3,942 2,008 Mountain 9,450 2,624 4,213 1,800 812 Pacific 27,498 6,887 12,343 5,663 2,606 Male Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 100,881 27,283 44,262 20,553 8,784 Northeast 23,396 6,036 10,111 5,133 2,115 North Central 27,668 7,503 12,240 5,513 2,412 South 31,875 8,895 13,876 6,279 2,825 West 17,942 4,848 8,035 3,627 1,432 New England 5,760 1,509 2,536 1,209 506 Middle Atlantic 17,635 4,527 7,575 3,924 1,609 East North Central 19,712 5,387 8,782 3,942 1,601 West North Central 7,956 2,116 3,457 1,571 811 South Atlantic 15,639 4,273 6,786 3,161 1,419 East South Central 6,402 1,805 2,782 1,242 573 West South Central 9,834 2,817 4,308 1,877 833 Mountain 4,625 1,337 2,050 879 359 Pacific 13,317 3,511 5,986 2,748 1,073 Female Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 108,212 26,231 46,904 22,556 12,521 Northeast 25,350 5,784 10,681 5,747 3,138 North Central 29,152 7,198 12,631 5,938 3,384 South 34,705 8,585 15,072 7,035 4,013 West 19,005 4,663 8,520 3,836 1,986 New England 6,230 1,444 2,655 1,346 785 Middle Atlantic 19,120 4,340 8,026 4,401 2,352 East North Central 20,732 5,172 9,049 4,248 2,263 West North Central 8,420 2,026 3,582 1,690 1,122 South Atlantic 17,222 4,126 7,493 3,577 2,026 East South Central 6,915 1,738 2,972 1,394 812 West South Central 10,568 2,721 4,607 2,065 1,175 Mountain 4,825 1,287 2,163 921 453 Pacific 14,180 3,375 6,357 2,915 1,533 Civ. Noninst. Pop'n by Age & Sex for Regions & Divisions:U.S.,1976 (Numbers in thousands) Total Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 210,575 52,375 93,132 43,261 21,807 Northeast 48,778 11,457 21,098 10,864 5,359 North Central 56,876 14,285 25,284 11,416 5,891 South 67,302 17,213 29,657 13,404 7,028 West 37,619 9,420 17,093 7,577 3,529 New England 12,016 2,854 5,292 2,551 1,319 Middle Atlantic 36,762 8,603 15,806 8,313 4,040 East North Central 40,393 10,239 18,070 8,146 3,937 West North Central 16,484 4,046 7,214 3,270 1,954 South Atlantic 33,124 8,217 14,583 6,770 3,553 East South Central 13,429 3,488 5,879 2,646 1,415 West South Central 20,750 5,507 9,195 3,988 2,060 Mountain 9,631 2,611 4,346 1,830 844 Pacific 27,988 6,807 12,747 5,747 2,685 Male Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 101,606 26,713 45,288 20,638 8,968 Northeast 23,409 5,853 10,276 5,128 2,152 North Central 27,700 7,294 12,462 5,499 2,445 South 32,224 8,762 14,239 6,326 2,896 West 18,273 4,804 8,310 3,684 1,475 New England 5,772 1,459 2,589 1,208 515 Middle Atlantic 17,638 4,394 7,687 3,921 1,636 East North Central 19,690 5,226 8,914 3,923 1,627 West North Central 8,011 2,068 3,549 1,576 818 South Atlantic 15,762 4,182 6,942 3,178 1,460 East South Central 6,457 1,778 2,847 1,248 584 West South Central 10,005 2,802 4,450 1,900 852 Mountain 4,715 1,331 2,118 894 372 Pacific 13,558 3,473 6,192 2,790 1,103 Female Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 108,969 25,663 47,844 22,623 12,839 Northeast 25,369 5,604 10,822 5,736 3,207 North Central 29,176 6,992 12,821 5,917 3,446 South 35,078 8,450 15,417 7,079 4,132 West 19,346 4,616 8,783 3,892 2,054 New England 6,244 1,395 2,702 1,343 804 Middle Atlantic 19,124 4,209 8,120 4,392 2,403 East North Central 20,703 5,013 9,156 4,223 2,310 West North Central 8,473 1,978 3,665 1,694 1,136 South Atlantic 17,362 4,035 7,641 3,592 2,093 East South Central 6,972 1,710 3,032 1,398 831 West South Central 10,745 2,705 4,744 2,088 1,207 Mountain 4,916 1,280 2,228 935 472 Pacific 14,430 3,336 6,555 2,957 1,582 Civ. Noninst. Pop'n by Age & Sex for Regions & Divisions:U.S.,1977 (Numbers in thousands) Total Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 212,182 51,481 95,060 43,357 22,284 Northeast 48,529 11,081 21,267 10,761 5,421 North Central 57,055 13,950 25,722 11,387 5,996 South 68,278 17,063 30,455 13,536 7,225 West 38,319 9,386 17,616 7,674 3,643 New England 12,024 2,761 5,387 2,543 1,332 Middle Atlantic 36,505 8,319 15,880 8,217 4,088 East North Central 40,498 10,001 18,367 8,123 4,007 West North Central 16,559 3,951 7,355 3,264 1,988 South Atlantic 33,429 8,070 14,890 6,803 3,666 East South Central 13,601 3,458 6,026 2,670 1,447 West South Central 21,248 5,534 9,538 4,063 2,112 Mountain 9,829 2,621 4,472 1,856 879 Pacific 28,490 6,764 13,144 5,817 2,765 Male Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 102,399 26,260 46,231 20,704 9,204 Northeast 23,292 5,662 10,360 5,085 2,186 North Central 27,796 7,123 12,684 5,490 2,499 South 32,694 8,687 14,622 6,394 2,991 West 18,617 4,787 8,566 3,735 1,529 New England 5,777 1,412 2,637 1,206 523 Middle Atlantic 17,515 4,250 7,723 3,879 1,663 East North Central 19,747 5,105 9,064 3,915 1,663 West North Central 8,050 2,020 3,620 1,575 836 South Atlantic 15,903 4,108 7,086 3,196 1,513 East South Central 6,542 1,763 2,919 1,260 600 West South Central 10,249 2,816 4,617 1,938 878 Mountain 4,813 1,336 2,180 908 389 Pacific 13,804 3,451 6,386 2,827 1,140 Female Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 109,782 25,220 48,828 22,653 13,080 Northeast 25,237 5,419 10,907 5,676 3,235 North Central 29,259 6,827 13,038 5,896 3,497 South 35,584 8,375 15,833 7,142 4,234 West 19,702 4,599 9,051 3,938 2,114 New England 6,247 1,349 2,750 1,338 810 Middle Atlantic 18,990 4,070 8,157 4,338 2,425 East North Central 20,750 4,896 9,303 4,207 2,344 West North Central 8,509 1,932 3,736 1,689 1,153 South Atlantic 17,526 3,962 7,804 3,606 2,153 East South Central 7,060 1,695 3,107 1,410 847 West South Central 10,999 2,718 4,921 2,126 1,235 Mountain 5,016 1,285 2,293 948 490 Pacific 14,686 3,314 6,758 2,990 1,624 Civ. Noninst. Pop'n by Age & Sex for Regions & Divisions:U.S.,1978 (Numbers in thousands) Total Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 213,873 50,701 96,943 43,424 22,805 Northeast 48,326 10,735 21,440 10,646 5,505 North Central 57,370 13,697 26,216 11,375 6,082 South 69,028 16,887 31,085 13,608 7,449 West 39,149 9,382 18,202 7,796 3,769 New England 12,039 2,675 5,473 2,527 1,365 Middle Atlantic 36,287 8,060 15,967 8,119 4,141 East North Central 40,676 9,811 18,686 8,102 4,067 West North Central 16,694 3,886 7,520 3,273 2,015 South Atlantic S 33,679 7,930 15,133 6,813 3,803 East South Central 13,765 3,442 6,154 2,691 1,478 West South Central 21,584 5,515 9,798 4,103 2,168 Mountain 10,084 2,643 4,626 1,892 923 Pacific 29,065 6,739 13,577 5,904 2,846 Male Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 103,209 25,867 47,188 20,749 9,404 Northeast 23,188 5,486 10,452 5,033 2,217 North Central 27,949 6,996 12,935 5,487 2,531 South 33,051 8,599 14,942 6,432 3,078 West 19,021 4,786 8,859 3,797 1,580 New England 5,781 1,368 2,680 1,198 535 Middle Atlantic 17,406 4,118 7,772 3,835 1,682 East North Central 19,833 5,009 9,232 3,907 1,685 West North Central 8,115 1,987 3,703 1,580 845 South Atlantic 16,018 4,037 7,211 3,203 1,567 East South Central 6,621 1,755 2,984 1,271 612 West South Central 10,412 2,807 4,748 1,958 899 Mountain 4,938 1,348 2,257 926 408 Pacific 14,083 3,438 6,602 2,871 1,172 Female Regions All 0 - 14 15 - 44 45 - 64 65 years and divisions ages years years years and over UNITED STATES 110,665 24,834 49,755 22,675 13,400 Northeast 25,138 5,249 10,987 5,613 3,289 North Central 29,422 6,702 13,281 5,887 3,551 South 35,977 8,288 16,143 7,176 4,371 West 20,128 4,596 9,344 3,999 2,189 New England 6,258 1,307 2,792 1,329 830 Middle Atlantic 18,881 3,942 8,195 4,284 2,459 East North Central 20,843 4,802 9,464 4,195 2,382 West North Central 8,579 1,899 3,817 1,693 1,169 South Atlantic 17,661 3,893 7,922 3,610 2,236 East South Central 7,144 1,687 3,171 1,420 866 West South Central 11,172 2,708 5,050 2,145 1,269 Mountain 5,146 1,296 2,369 966 516 Pacific 14,982 5,300 6,974 3,033 1,674 Civ. Noninst. Pop'n by Age, Sex, & Geo. Region: U.S., 1979 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) Ages & Region Both sexes Male Female Population in thousands All Ages 215,884 104,180 111,704 Northeast 48,232 23,138 25,094 North Central 57,515 28,021 29,493 South 69,941 33,486 36,456 West 40,193 19,533 20,660 0 - 14 years 50,092 25,563 24,530 Under 1 year 3,279 1,679 1,600 1 - 4 years 12,362 6,319 6,043 5 - 14 years 34,451 17,564 16,887 Northeast 10,416 5,324 5,092 North Central 13,433 6,862 6,570 South 16,766 8,540 8,226 West 9,477 4,836 4,641 15 - 44 years 98,941 48,197 50,744 15 - 24 years 40,162 19,760 20,402 25 - 34 years 34,099 16,570 17,528 35 - 44 years 24,680 11,866 12,813 Northeast 21,679 10,577 11,102 North Central 26,588 13,128 13,460 South 31,808 15,303 16,506 West 18,865 9,189 9,676 45 - 64 years 43,481 20,786 22,695 45 - 54 years 22,747 10,995 11,752 55 - 64 years 20,734 9,792 10,943 Northeast 10,543 4,986 5,557 North Central 11,331 5,468 5,863 South 13,665 6,462 7,203 West 7,942 3,870 4,072 65 years and over 23,369 9,634 13,735 65 - 74 years 14,950 6,505 8,445 75 years and over 8,419 3,129 5,290 Northeast 5,594 2,251 3,343 North Central 6,163 2,563 3,600 South 7,702 3,181 4,521 West 3,909 1,638 2,271 Civilian Resident Pop'n by Age & Sex: U.S., 1980 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) Both sexes Male Female Population in thousands All Ages 225,552 108,895 116,657 0 - 14 years 51,270 26,208 25,063 Under 1 year 3,548 1,815 1,733 1 - 4 years 12,900 6,598 6,303 5 - 14 years 34,822 17,795 17,027 15 - 44 years 104,126 51,203 52,923 15 - 24 years 41,605 20,645 20,960 25 - 34 years 36,920 18,105 18,815 35 - 44 years 25,601 12,453 13,148 45 - 64 years 44,448 21,121 23,328 45 - 54 years 22,696 10,948 11,749 55 - 64 years 21,752 10,173 11,579 65 years and over 25,708 10,363 15,345 65 - 74 years 15,648 6,787 8,861 75 - 84 years 7,787 2,886 4,901 85 years and over 2,274 691 1,583 Civ. Pop'n by Age, Sex, Geo. Region, & Race: U.S., 1981 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) Age, geographic Both sexes Male Female region and race Population in thousands All ages 227,659 109,912 117,747 Northeast 49,213 23,472 25,741 North Central 58,741 28,492 30,249 South 76,082 36,572 39,511 West 43,623 21,376 22,246 White 195,338 94,689 100,650 Black 26,870 12,579 14,291 All other 5,450 2,644 2,806 0 - 14 years 51,226 26,192 25,034 Under 1 year 3,591 1,839 1,752 1 - 4 years 13,348 6,828 6,520 5 - 14 years 34,286 17,525 16,762 Northeast 10,165 5,196 4,968 North Central 13,445 6,882 6,563 South 17,594 8,989 8,604 West 10,021 5,124 4,898 White 42,003 21,536 20,467 Black 7,725 3,892 3,833 All other 1,498 764 734 15 - 44 years 105,748 52,048 53,699 15 - 24 years 41,231 20,484 20,745 25 - 34 years 38,282 18,791 19,491 35 - 44 years 26,235 12,772 13,463 Northeast 22,431 10,956 11,475 North Central 27,151 13,454 13,699 South 35,138 17,167 17,971 West 21,027 10,473 10,556 White 90,163 44,756 45,408 Black 12,790 5,949 6,840 All other 2,794 1,344 1,452 45 - 64 years 44,432 21,112 23,320 45 - 54 years 22,499 10,857 11,641 55 - 64 years 21,934 10,255 11,679 Northeast 10,422 4,901 5,521 North Central 11,304 5,417 5,887 South 14,591 6,864 7,727 West 8,115 3,929 4,185 White 39,390 18,852 20,538 Black 4,208 1,874 2,334 All other 834 386 448 65 years and over 26,253 10,560 15,693 65 - 74 years 15,893 6,893 9,000 75 years and over 10,361 3,667 6,693 Northeast 6,195 2,411 3,784 North Central 6,840 2,738 4,102 South 8,759 3,552 5,207 West 4,459 1,859 2,600 White 23,782 9,545 14,236 Black 2,148 863 1,284 All other 323 152 173 *The NHDS used the civilian noninstitutionalized population to calculate hospital utilization rates from 1965 through 1980. Beginning in 1981, the civilian resident population is being 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 1981 rates using the civilian resident population. Civ. Pop'n by Age, Sex, Geo. Region, & Race: U.S., 1982 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) Age, geographic Both sexes Male Female region and race Population in thousands All ages 229,865 110,974 118,891 Northeast 49,344 23,532 25,812 North Central 58,777 28,508 30,269 South 77,268 37,140 40,128 West 44,475 21,793 22,683 White 196,811 95,396 101,414 Black 27,279 12,771 14,509 All other 5,775 2,807 2,968 0 - 14 years 51,352 26,261 25,093 Under 1 year 3,642 1,864 1,778 1 - 4 years 13,730 7,023 6,708 5 - 14 years 33,980 17,375 16,607 Northeast 10,041 5,135 4,907 North Central 13,343 6,831 6,513 South 17,735 9,064 8,673 West 10,232 5,232 5,000 White 41,994 21,534 20,460 Black 7,754 3,908 3,846 All other 1,605 820 786 15 - 44 years 107,253 52,825 54,427 15 - 24 years 40,648 20,217 20,432 25 - 34 years 38,753 19,035 19,718 35 - 44 years 27,852 13,575 14,278 Northeast 22,678 11,084 11,594 North Central 27,273 13,523 13,750 South 35,843 17,524 18,320 West 21,457 10,694 10,763 White 91,215 45,300 45,917 Black 13,099 6,110 6,990 All other 2,937 1,415 1,520 45 - 64 years 44,435 21,109 23,326 45 - 54 years 22,342 10,789 11,553 55 - 64 years 22,093 10,320 11,773 Northeast 10,337 4,860 5,477 North Central 11,178 5,355 5,821 South 14,730 6,928 7,802 West 8,191 3,965 4,226 White 39,308 18,818 20,492 Black 4,242 1,883 2,360 All other 885 410 474 65 years and over 26,824 10,778 16,046 65 - 74 years 16,134 7,004 9,131 75 years and over 10,689 3,774 6,914 Northeast 6,289 2,444 3,844 North Central 6,982 2,792 4,191 South 8,957 3,628 5,329 West 4,596 1,914 2,682 White 24,293 9,747 14,547 Black 2,183 870 1,313 All other 348 161 186 *The NHDS used the civilian noninstitutionalized population to calculate hospital utilization rates from 1965 through 1980. Beginning in 1981, the civilian resident population is being 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 1982 rates using the civilian resident population. Civ. Pop'n by Age, Sex, Geo. Region, & Race: U.S., 1983 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) Age, geographic region, and race Both sexes Male Female Population in thousands All ages 232,286 112,170 120,115 Northeast 49,407 23,549 25,857 North Central 58,808 28,520 30,288 South 78,647 37,819 40,828 West 45,424 22,282 23,142 White 198,199 96,089 102,111 All other 34,087 16,082 18,005 0-14 years 51,588 26,385 25,203 Under 1 year 3,660 1,875 1,785 1-4 years 14,166 7,246 6,920 5-14 years 33,762 17,264 16,498 Northeast 9,917 5,071 4,845 North Central 13,255 6,787 6,469 South 17,952 9,175 8,777 West 10,464 5,351 5,112 White 42,016 21,548 20,468 All other 9,573 4,838 4,737 15-44 years 108,792 53,638 55,153 15-24 years 40,031 19,934 20,097 25-34 years 39,574 19,470 20,104 35-44 years 29,187 14,234 14,952 Northeast 22,853 11,179 11,674 North Central 27,390 13,596 13,795 South 36,611 17,915 18,694 West 21,940 10,948 10,992 White 92,140 45,795 46,348 All other 16,652 7,845 8,808 45-64 years 44,521 21,155 23,367 45-54 years 22,303 10,778 11,526 55-64 years 22,218 10,377 11,841 Northeast 10,236 4,812 5,423 North Central 11,077 5,308 5,769 South 14,912 7,015 7,897 West 8,296 4,018 4,278 White 39,272 18,813 20,459 All other 5,250 2,343 2,908 65 years and over 27,384 10,992 16,392 65-74 years 16,362 7,105 9,257 75 years and over 11,021 3,887 7,135 Northeast 6,402 2,486 3,916 North Central 7,085 2,830 4,256 South 9,172 3,711 5,461 West 4,725 1,966 2,759 White 24,773 9,933 14,839 All other 2,612 1,058 1,555 *The NHDS used the civilian noninstitutionalized population to calculate hospital utilization rates from 1965 through 1980. Beginning in 1981, the civilian resident population is being 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 1983 rates using the civilian resident population. Civ. Pop'n by Age, Sex, Geo. Region, & Race: U.S., 1984 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) Age, geographic Both sexes Male Female region and race Population in thousands All ages 234,443 113,199 121,244 Northeast 49,617 23,646 25,971 North Central 58,965 28,590 30,375 South 79,678 38,310 41,368 West 46,182 22,653 23,529 White 199,641 96,775 102,867 All other 34,801 16,424 18,377 0 - 14 years 51,733 26,475 25,259 Under 1 year 3,637 1,861 1,775 1 - 4 years 14,179 7,254 6,927 5 - 14 years 33,917 17,360 16,557 Northeast 9,850 5,041 4,809 North Central 13,188 6,757 6,431 South 18,055 9,234 8,822 West 10,640 5,444 5,196 White 42,045 21,572 20,473 All other 9,689 4,904 4,786 15 - 44 years 109,958 54,096 55,862 15 - 24 years 39,230 19,471 19,759 25 - 34 years 40,328 19,803 20,523 35 - 44 years 30,401 14,821 15,580 Northeast 23,047 11,248 11,798 North Central 27,511 13,625 13,885 South 37,140 18,136 19,005 West 22,262 11,087 11,175 White 92,995 46,132 46,863 All other 16,963 7,963 8,999 45 - 64 years 44,712 21,329 23,382 45 - 54 years 22,397 10,856 11,540 55 - 64 years 22,315 10,473 11,842 Northeast 10,205 4,818 5,388 North Central 11,044 5,314 5,730 South 15,069 7,118 7,951 West 8,392 4,081 4,313 White 39,280 18,880 20,403 All other 5,430 2,450 2,979 65 years and over 28,040 11,299 16,741 65 - 74 years 16,746 7,318 9,429 75 years and over 11,294 3,981 7,313 Northeast 6,515 2,539 3,976 North Central 7,223 2,895 4,327 South 9,414 3,823 5,591 West 4,888 2,041 2,846 White 25,321 10,193 15,129 All other 2,719 1,107 1,612 *The NHDS used the civilian noninstitutionalized population to calculate hospital utilization rates from 1965 through 1980. Beginning in 1981, the civilian resident population is being 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 1984 rates using the civilian resident population. Civ. Pop'n by Age, Sex, Geo. Region, & Race: U.S., 1985 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) Regions and Both sexes Male Female Divisions ALL AGES, U.S. 237,036 114,614 122,422 NORTHEAST 49,750 23,740 26,010 NEW ENGLAND 12,613 6,034 6,579 MIDDLE ATLANTIC 37,136 17,706 19,431 NORTH CENTRAL 59,044 28,667 30,377 EAST NORTH CENTRAL 41,566 20,168 21,397 WEST NORTH CENTRAL 17,478 8,498 8,980 SOUTH 80,976 38,984 41,991 SOUTH ATLANTIC 39,669 18,959 20,710 EAST SOUTH CENTRAL 15,019 7,222 7,797 WEST SOUTH CENTRAL 26,288 12,804 13,484 WEST 47,267 23,223 24,044 MOUNTAIN 12,671 6,258 6,414 PACIFIC 34,595 16,965 17,630 0 - 4 U.S. total 18,037 9,230 8,806 NORTHEAST 3,313 1,695 1,618 NEW ENGLAND 832 426 406 MIDDLE ATLANTIC 2,481 1,269 1,212 MIDWEST 4,485 2,297 2,187 EAST NORTH CENTRAL 3,097 1,586 1,511 WEST NORTH CENTRAL 1,388 711 677 SOUTH 6,241 3,190 3,050 SOUTH ATLANTIC 2,807 1,435 1,371 EAST SOUTH CENT 1,112 568 544 WEST SOUTH CENT 2,322 1,187 1,135 WEST 3,998 2,047 1,951 MOUNTAIN 1,152 590 562 PACIFIC 2,846 1,457 1,389 5 - 14 U.S. TOTAL 33,924 17,371 16,554 NORTHEAST 6,510 3,333 3,177 NEW ENGLAND 1,614 828 787 MIDDLE ATLANTIC 4,895 2,505 2,390 MIDWEST 8,705 4,463 4,243 EAST NORTH CENTRAL 6,139 3,147 2,993 WEST NORTH CENTRAL 2,566 1,316 1,250 SOUTH 11,884 6,082 5,802 SOUTH ATLANTIC 5,430 2,778 2,652 EAST SOUTH CENT 2,314 1,186 1,128 WEST SOUTH CENT 4,140 2,118 2,022 WEST 6,825 3,493 3,332 MOUNTAIN 2,004 1,025 979 PACIFIC 4,822 2,469 2,353 15 - 19 U.S. TOTAL 18,390 9,297 9,093 NORTHEAST 3,915 1,977 1,938 NEW ENGLAND 1,004 505 499 MIDDLE ATLANTIC 2,911 1,471 1,439 MIDWEST 4,655 2,360 2,295 EAST NORTH CENTRAL 3,328 1,687 1,641 WEST NORTH CENTRAL 1,327 672 654 SOUTH 6,341 3,202 3,140 SOUTH ATLANTIC 3,044 1,531 1,513 EAST SOUTH CENT 1,219 619 600 WEST SOUTH CENT 2,078 1,051 1,027 WEST 3,479 1,759 1,719 MOUNTAIN 962 485 477 PACIFIC 2,516 1,275 1,242 20 - 24 U.S. TOTAL 20,359 9,946 10,413 NORTHEAST 4,264 2,073 2,191 NEW ENGLAND 1,125 547 578 MIDDLE ATLANTIC 3,139 1,526 1,613 MIDWEST 5,132 2,528 2,604 EAST NORTH CENTRAL 3,622 1,783 1,839 WEST NORTH CENTRAL 1,511 745 766 SOUTH 7,010 3,391 3,619 SOUTH ATLANTIC 3,372 1,614 1,758 EAST SOUTH CENT 1,332 645 687 WEST SOUTH CENT 2,306 1,132 1,174 WEST 3,953 1,953 1,999 MOUNTAIN 1,082 529 552 PACIFIC 2,871 1,424 1,447 25 - 29 U.S. TOTAL 21,373 10,553 10,821 NORTHEAST 4,265 2,088 2,177 NEW ENGLAND 1,141 560 581 MIDDLE ATLANTIC 3,124 1,528 1,596 MIDWEST 5,315 2,649 2,666 EAST NORTH CENTRAL 3,753 1,866 1,887 WEST NORTH CENTRAL 1,563 783 779 SOUTH 7,248 3,540 3,708 SOUTH ATLANTIC 3,473 1,676 1,796 EAST SOUTH CENT 1,315 642 673 WEST SOUTH CENT 2,460 1,222 1,238 WEST 4,545 2,275 2,270 MOUNTAIN 1,212 609 603 PACIFIC 3,333 1,667 1,667 30 - 34 U.S. TOTAL 20,033 9,885 10,148 NORTHEAST 4,004 1,953 2,051 NEW ENGLAND 1,040 512 529 MIDDLE ATLANTIC 2,964 1,442 1,522 MIDWEST 4,878 2,424 2,453 EAST NORTH CENTRAL 3,449 1,709 1,740 WEST NORTH CENTRAL 1,428 715 713 SOUTH 6,726 3,290 3,435 SOUTH ATLANTIC 3,253 1,577 1,676 EAST SOUTH CENT 1,197 587 610 WEST SOUTH CENT 2,275 1,127 1,149 WEST 4,425 2,217 2,208 MOUNTAIN 1,155 584 571 PACIFIC 3,271 1,633 1,638 35 - 44 U.S. TOTAL 31,502 15,379 16,123 NORTHEAST 6,681 3,223 3,459 NEW ENGLAND 1,720 840 880 MIDDLE ATLANTIC 4,962 2,383 2,579 MIDWEST 7,532 3,696 3,835 EAST NORTH CENTRAL 5,363 2,627 2,736 WEST NORTH CENTRAL 2,168 1,069 1,099 SOUTH 10,684 5,179 5,505 SOUTH ATLANTIC 5,341 2,578 2,763 EAST SOUTH CENT 1,925 930 995 WEST SOUTH CENT 3,417 1,670 1,747 WEST 6,605 3,281 3,324 MOUNTAIN 1,693 841 852 PACIFIC 4,913 2,440 2,472 45 - 54 U.S. TOTAL 22,555 10,927 11,628 NORTHEAST 4,966 2,380 2,586 NEW ENGLAND 1,203 583 620 MIDDLE ATLANTIC 3,763 1,797 1,966 MIDWEST 5,524 2,696 2,828 EAST NORTH CENTRAL 3,930 1,915 2,015 WEST NORTH CENTRAL 1,594 781 813 SOUTH 7,732 3,715 4,017 SOUTH ATLANTIC 3,913 1,877 2,036 EAST SOUTH CENT 1,434 683 751 WEST SOUTH CENT 2,384 1,155 1,230 WEST 4,333 2,136 2,197 MOUNTAIN 1,109 549 560 PACIFIC 3,225 1,588 1,637 55 - 59 U.S. TOTAL 11,336 5,378 5,957 NORTHEAST 2,668 1,257 1,411 NEW ENGLAND 638 303 335 MIDDLE ATLANTIC 2,030 954 1,076 MIDWEST 2,821 1,356 1,465 EAST NORTH CENTRAL 2,016 966 1,050 WEST NORTH CENTRAL 804 389 415 SOUTH 3,789 1,775 2,014 SOUTH ATLANTIC 1,965 914 1,051 EAST SOUTH CENT 694 324 370 WEST SOUTH CENT 1,129 537 592 WEST 2,058 991 1,068 MOUNTAIN 514 248 266 PACIFIC 1,544 743 801 60 - 64 U.S. TOTAL 10,997 5,120 5,877 NORTHEAST 2,590 1,193 1,397 NEW ENGLAND 627 290 337 MIDDLE ATLANTIC 1,963 903 9,060 MIDWEST 2,701 1,265 1,436 EAST NORTH CENTRAL 1,920 898 1,022 WEST NORTH CENTRAL 780 366 414 SOUTH 3,690 1,698 1,991 SOUTH ATLANTIC 1,976 903 1,073 EAST SOUTH CENT 659 302 357 WEST SOUTH CENT 1,054 493 561 WEST 2,016 963 1,053 MOUNTAIN 501 241 260 PACIFIC 1,515 723 792 65+ U.S. TOTAL 28,530 11,529 17,002 NORTHEAST 6,573 2,569 4,005 NEW ENGLAND 1,668 640 1,028 MIDDLE ATLANTIC 4,905 1,928 2,977 MIDWEST 7,297 2,933 4,364 EAST NORTH CENTRAL 4,948 1,982 2,965 WEST NORTH CENTRAL 2,349 950 1,399 SOUTH 9,632 3,922 5,710 SOUTH ATLANTIC 5,094 2,076 3,018 EAST SOUTH CENT 1,816 734 1,083 WEST SOUTH CENT 2,722 1,112 1,609 WEST 5,028 2,105 2,923 MOUNTAIN 1,288 558 730 PACIFIC 3,740 1,547 2,193 UNDER 17, U.S. 59,411 30,410 29,001 NORTHEAST 11,377 5,822 5,555 NEW ENGLAND 2,843 1,456 1,387 MIDDLE ATLANTIC 8,535 4,366 4,169 MIDWEST 15,086 7,732 7,354 EAST NORTH CENTRAL 10,590 5,426 5,164 WEST NORTH CENTRAL 4,495 2,305 2,190 SOUTH 20,697 10,587 10,110 SOUTH ATLANTIC 9,460 4,838 4,622 EAST SOUTH CENT 3,922 2,008 1,914 WEST SOUTH CENT 7,316 3,741 3,575 WEST 12,250 6,269 5,981 MOUNTAIN 3,551 1,816 1,735 PACIFIC 8,699 4,453 4,245 *The NHDS used the civilian noninstitutionalized population to calculate hospital utilization rates from 1965 through 1980. Beginning in 1981, the civilian resident population is being 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. Civ. Pop'n by Age, Sex, Geo. Region, & Race: U.S., 1986 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) (NUMBERS IN THOUSANDS) TOTAL DATE AND AGE TOTAL MALE FEMALE JULY 1, 1986 ALL AGES 239,357 115,800 123,556 UNDER 5 YEARS 18,128 9,274 8,854 UNDER 1 YEAR 3,728 1,908 1,819 1 YEAR 3,623 1,856 1,767 2 YEARS 3,497 1,788 1,709 3 YEARS 3,625 1,855 1,771 4 YEARS 3,654 1,867 1,787 5 TO 9 YEARS 17,291 8,851 8,440 5 YEARS 3,601 1,844 1,758 6 YEARS 3,555 1,818 1,738 7 YEARS 3,496 1,789 1,707 8 YEARS 3,283 1,682 1,601 9 YEARS 3,355 1,719 1,636 10 TO 14 YEARS 16,564 8,487 8,077 10 YEARS 3,267 1,675 1,592 11 YEARS 3,285 1,684 1,600 12 YEARS 3,202 1,641 1,561 13 YEARS 3,302 1,690 1,612 14 YEARS 3,508 1,797 1,711 15 TO 19 YEARS 18,456 9,343 9,114 15 YEARS 3,846 1,971 1,875 16 YEARS 3,767 1,928 1,840 17 YEARS 3,670 1,878 1,791 18 YEARS 3,512 1,766 1,745 19 YEARS 3,662 1,800 1,862 20 TO 24 YEARS 19,803 9,681 10,121 20 YEARS 3,705 1,809 1,896 21 YEARS 3,834 1,866 1,968 22 YEARS 3,983 1,947 2,036 23 YEARS 4,071 1,990 2,081 24 YEARS 4,209 2,069 2,140 25 TO 29 YEARS 21,620 10,682 10,938 25 YEARS 4,341 2,137 2,204 26 YEARS 4,260 2,101 2,159 27 YEARS 4,334 2,139 2,196 28 YEARS 4,186 2,070 2,116 29 YEARS 4,499 2,235 2,264 30 TO 34 YEARS 20,528 10,146 10,382 30 YEARS 4,321 2,140 2,181 31 YEARS 4,167 2,060 2,107 32 YEARS 4,113 2,031 2,082 33 YEARS 3,959 1,951 2,008 34 YEARS 3,969 1,964 2,004 35 TO 39 YEARS 18,535 9,078 9,457 35 YEARS 3,818 1,879 1,939 36 YEARS 3,627 1,778 1,849 37 YEARS 3,629 1,771 1,858 38 YEARS 3,518 1,716 1,802 39 YEARS 3,944 1,934 2,010 40 TO 44 YEARS 14,258 6,944 7,313 40 YEARS 2,877 1,398 1,478 41 YEARS 2,813 1,371 1,442 42 YEARS 2,846 1,388 1,458 43 YEARS 3,030 1,477 1,553 44 YEARS 2,692 1,310 1,382 45 TO 49 YEARS 11,895 5,786 6,110 45 YEARS 2,482 1,206 1,276 46 YEARS 2,429 1,178 1,251 47 YEARS 2,444 1,187 1,257 48 YEARS 2,279 1,112 1,166 49 YEARS 2,262 1,102 1,160 50 TO 54 YEARS 10,879 5,252 5,627 50 YEARS 2,250 1,083 1,167 51 YEARS 2,183 1,059 1,124 52 YEARS 2,106 1,019 1,087 53 YEARS 2,126 1,029 1,097 54 YEARS 2,214 1,062 1,152 55 TO 59 YEARS 11,266 5,357 5,909 55 YEARS 2,230 1,064 1,166 56 YEARS 2,236 1,074 1,161 57 YEARS 2,291 1,094 1,197 58 YEARS 2,257 1,071 1,186 59 YEARS 2,252 1,054 1,198 60 TO 64 YEARS 10,961 5,096 5,865 60 YEARS 2,245 1,047 1,198 61 YEARS 2,261 1,054 1,207 62 YEARS 2,154 1,000 1,154 63 YEARS 2,105 978 1,127 64 YEARS 2,196 1,018 1,179 65 TO 69 YEARS 9,661 4,377 5,285 65 YEARS 2,146 992 1,154 66 YEARS 1,978 906 1,073 67 YEARS 1,898 859 1,040 68 YEARS 1,856 836 1,020 69 YEARS 1,782 784 998 70 TO 74 YEARS 7,664 3,268 4,396 70 YEARS 1,660 728 932 71 YEARS 1,605 693 911 72 YEARS 1,553 663 890 73 YEARS 1,447 607 841 74 YEARS 1,399 576 822 75 TO 79 YEARS 5,629 2,197 3,432 75 YEARS 1,301 529 772 76 YEARS 1,213 481 732 77 YEARS 1,126 436 690 78 YEARS 1,038 395 643 79 YEARS 951 357 594 80 TO 84 YEARS 3,422 1,189 2,233 80 YEARS 849 308 541 81 YEARS 749 263 486 82 YEARS 659 229 430 83 YEARS 612 207 405 84 YEARS 553 182 372 85 YEARS AND OVER 2,796 792 2,004 1 TO 4 YEARS 14,400 7,366 7,035 5 TO 13 YEARS 30,346 15,541 14,805 14 TO 17 YEARS 14,792 7,574 7,217 18 TO 24 YEARS 26,976 13,247 13,729 18 TO 21 YEARS 14,712 7,240 7,472 22 TO 24 YEARS 12,264 6,007 6,257 15 TO 44 YEARS 113,200 55,874 57,326 14 YEARS AND OVER 190,882 90,986 99,897 16 YEARS AND OVER 183,528 87,217 96,310 18 YEARS AND OVER 176,091 83,411 92,680 21 YEARS AND OVER 165,212 78,037 87,176 62 YEARS AND OVER 35,628 14,818 20,810 65 YEARS AND OVER 29,173 11,823 17,350 MEDIAN AGE YEARS 31.9 30.8 33.0 July 1, 1986 Male 80-Based Estimates of Civ. Pop'n by Age (IN THOUSANDS) TOTAL 0-4 5-14 15-19 20-24 25-29 NORTHEAST 23835 715 3279 1950 2023 2115 MIDWEST 28721 2250 4372 2351 2445 2682 SOUTH 39534 3229 6129 3253 3304 3591 WEST 23711 2079 3557 1789 1909 2294 NEW ENGLAND 6081 434 815 498 532 572 MIDDLE ATLANTIC 17754 1281 2465 1451 1491 1542 EAST NORTH CENTRAL 20215 1567 3094 1684 1728 1882 WEST NORTH CENTRAL 8506 683 1278 667 717 800 SOUTH ATLANTIC 19292 1472 2804 1558 1582 1704 EAST SOUTH CENTRAL 7258 564 1185 626 624 651 WEST SOUTH CENTRAL 12983 1193 2140 1069 1097 1237 MOUNTAIN 6374 587 1035 496 516 616 PACIFIC 17337 1493 2522 1293 1393 1678 30-34 35-44 45-54 55-59 60-64 65+ NORTHEAST 1986 3330 2381 1241 1179 2636 MIDWEST 2486 3849 2716 1346 1258 2965 SOUTH 3382 5385 3762 1773 1698 4027 WEST 2291 3459 2180 997 961 2195 NEW ENGLAND 523 874 585 300 286 661 MIDDLE ATLANTIC 1463 2456 1796 941 893 1974 EAST NORTH CENTRAL 1749 2727 1924 957 892 2011 WEST NORTH CENTRAL 738 1122 792 390 366 954 SOUTH ATLANTIC 1618 2681 1906 915 904 2149 EAST SOUTH CENTRAL 600 960 687 322 300 740 WEST SOUTH CENTRAL 1165 1744 1168 537 494 1139 MOUNTAIN 603 888 560 252 241 580 PACIFIC 1688 2570 1620 745 720 1616 0-16 NORTHEAST 5792 MIDWEST 7606 SOUTH 10727 WEST 6385 NEW ENGLAND 1451 MIDDLE ATLANTIC 4341 EAST NORTH CENTRAL 5368 WEST NORTH CENTRAL 2237 SOUTH ATLANTIC 4929 EAST SOUTH CENTRAL 2013 WEST SOUTH CENTRAL 3785 MOUNTAIN 1830 PACIFIC 4555 July 1, 1986 Female 80-Based Estimates of Civ. Pop'n by Age (IN THOUSANDS) TOTAL 0-4 5-14 15-19 20-24 25-29 NORTHEAST 26072 1638 3124 1908 2135 2203 MIDWEST 30444 2144 4156 2280 2514 2695 SOUTH 42558 3089 5845 3181 3520 3755 WEST 24482 1983 3392 1744 1952 2285 NEW ENGLAND 6606 414 773 491 561 594 MIDDLE ATLANTIC 19466 1224 2350 1417 1575 1609 EAST NORTH CENTRAL 21448 1494 2941 1634 1779 1900 WEST NORTH CENTRAL 8996 650 1215 647 735 795 SOUTH ATLANTIC 21044 1408 2676 1535 1720 1822 EAST SOUTH CENTRAL 7850 540 1126 605 664 682 WEST SOUTH CENTRAL 1366 4114 2204 3104 1113 61250 MOUNTAIN 6530 560 989 487 538 610 PACIFIC 17953 1423 2403 1257 1414 1675 30-34 35-44 45-54 55-59 60-64 65+ NORTHEAST 2078 3568 2585 1387 1384 4062 MIDWEST 2509 3987 2848 1449 1432 4429 SOUTH 3519 5716 4064 2004 1995 5869 WEST 2276 3500 2238 1069 1053 2990 NEW ENGLAND 539 913 622 331 333 1036 MIDDLE ATLANTIC 1539 2654 1964 1056 1052 3026 EAST NORTH CENTRAL 1775 2835 2024 1036 1018 3015 WEST NORTH CENTRAL 734 1152 825 414 414 1415 SOUTH ATLANTIC 1713 2870 2067 1049 1078 3106 EAST SOUTH CENTRAL 622 1026 755 366 355 1109 WEST SOUTH CENTRAL 1184 1821 1243 589 563 1653 MOUNTAIN 588 899 572 270 262 755 PACIFIC 1688 2600 1667 799 791 2235 0-16 NORTHEAST 5524 MIDWEST 7232 SOUTH 10240 WEST 6090 NEW ENGLAND 1381 MIDDLE ATLANTIC 4143 EAST NORTH CENTRAL 5107 WEST NORTH CENTRAL 2125 SOUTH ATLANTIC 4706 EAST SOUTH CENTRAL 1918 WEST SOUTH CENTRAL 3616 MOUNTAIN 1748 PACIFIC 4342 July 1, 1986 Both Sexes 80-Based Estimates of Civ. Pop'n by Age (IN THOUSANDS) TOTAL 0-4 5-14 15-19 20-24 25-29 NORTHEAST 49907 3353 6403 3858 4159 4318 MIDWEST 59165 4394 8528 4631 4959 5377 SOUTH 82091 6318 11975 6434 6824 7347 WEST 48193 4063 6949 3533 3861 4579 NEW ENGLAND 12687 848 1588 989 1093 1166 MIDDLE ATLANTIC 37220 2505 4815 2869 3066 3152 EAST NORTH CENTRAL 41663 3061 6035 3318 3507 3782 WEST NORTH CENTRAL 17502 1334 2493 1314 1452 1595 SOUTH ATLANTIC 40336 2880 5481 3093 3302 3526 EAST SOUTH CENTRAL 15108 1104 2311 1231 1288 1333 WEST SOUTH CENTRAL 26647 2335 4183 2111 2234 2487 MOUNTAIN 12903 1147 2024 983 1054 1226 PACIFIC 35290 2916 4925 2550 2807 3353 30-34 35-44 45-54 55-59 60-64 65+ NORTHEAST 4064 6898 4966 2627 2564 6698 MIDWEST 4995 7836 5564 2796 2691 7394 SOUTH 6902 11101 7826 3777 3693 9895 WEST 4567 6958 4418 2065 2014 5185 NEW ENGLAND 1062 1787 1207 630 619 1697 MIDDLE ATLANTIC 3002 5110 3759 1997 1945 5000 EAST NORTH CENTRAL 3523 5562 3948 1992 1910 5026 WEST NORTH CENTRAL 1472 2274 1617 804 780 2368 SOUTH ATLANTIC 3331 5551 3972 1964 1981 5254 EAST SOUTH CENTRAL 1222 1986 1442 688 655 1849 WEST SOUTH CENTRAL 2348 3564 2411 1125 1057 2792 MOUNTAIN 1191 1788 1131 521 503 1334 PACIFIC 3376 5171 3287 1544 1510 3851 0-16 NORTHEAST 11316 MIDWEST 14838 SOUTH 20968 WEST 12475 NEW ENGLAND 2833 MIDDLE ATLANTIC 8484 EAST NORTH CENTRAL 10475 WEST NORTH CENTRAL 4363 SOUTH ATLANTIC 9635 EAST SOUTH CENTRAL 3931 WEST SOUTH CENTRAL 7401 MOUNTAIN 3578 PACIFIC 8897 Civ. Pop'n by Age, Sex, Geo. Region, & Race: U.S., 1987 (Population estimates consistent with Series P-25, Current Population Reports, U.S. Bureau of the Census) (NUMBERS IN THOUSANDS) TOTAL DATE AND AGE TOTAL MALE FEMALE JULY 1, 1986 ALL AGES 241,661 116,959 124,702 UNDER 5 YEARS 18,252 9,341 8,910 UNDER 1 YEAR 3,771 1,931 1,841 1 YEAR 3,642 1,866 1,776 2 YEARS 3,611 1,847 1,764 3 YEARS 3,580 1,820 1,740 4 YEARS 3,668 1,878 1,790 5 TO 9 YEARS 17,661 9,037 8,625 5 YEARS 3,651 1,866 1,785 6 YEARS 3,612 1,848 1,764 7 YEARS 3,625 1,855 1,770 8 YEARS 3,389 1,736 1,654 9 YEARS 3,364 1,732 1,652 10 TO 14 YEARS 16,485 8,450 8,035 10 YEARS 3,420 1,755 1,665 11 YEARS 3,236 1,657 1,578 12 YEARS 3,280 1,682 1,598 13 YEARS 3,226 1,653 1,573 14 YEARS 3,323 1,702 1,620 15 TO 19 YEARS 18,309 9,275 9,034 15 YEARS 3,539 1,812 1,728 16 YEARS 3,845 1,970 1,875 17 YEARS 3,756 1,927 1,830 18 YEARS 3,583 1,804 1,780 19 YEARS 3,586 1,764 1,822 20 TO 24 YEARS 19,182 9,368 9,814 20 YEARS 3,604 1,757 1,847 21 YEARS 3,624 1,764 1,859 22 YEARS 3,816 1,859 1,957 23 YEARS 4,006 1,958 2,047 24 YEARS 4,133 2,029 2,104 25 TO 29 YEARS 21,574 10,651 10,923 25 YEARS 4,247 2,089 2,159 26 YEARS 4,321 2,130 2,192 27 YEARS 4,315 2,126 2,186 28 YEARS 4,178 2,062 2,116 29 YEARS 4,513 2,242 2,270 30 TO 34 YEARS 21,081 10,433 10,647 30 YEARS 4,483 2,225 2,258 31 YEARS 4,234 2,093 2,140 32 YEARS 4,208 2,083 2,124 33 YEARS 4,072 2,009 2,063 34 YEARS 4,084 2,023 2,061 35 TO 39 YEARS 18,553 9,099 9,454 35 YEARS 3,918 1,934 1,964 36 YEARS 3,768 1,849 1,919 37 YEARS 3,643 1,783 1,860 38 YEARS 3,548 1,732 1,816 39 YEARS 3,676 1,801 1,875 40 TO 44 YEARS 15,471 7,546 7,925 40 YEARS 3,958 1,937 2,021 41 YEARS 2,767 1,346 1,421 42 YEARS 2,824 1,377 1,447 43 YEARS 2,872 1,397 1,475 44 YEARS 3,050 1,489 1,561 45 TO 49 YEARS 12,321 5,996 6,325 45 YEARS 2,639 1,285 1,355 46 YEARS 2,538 1,231 1,306 47 YEARS 2,468 1,199 1,269 48 YEARS 2,309 1,127 1,182 49 YEARS 2,368 1,155 1,213 50 TO 54 YEARS 10,919 5,279 5,641 50 YEARS 2,270 1,094 1,176 51 YEARS 2,186 1,059 1,127 52 YEARS 2,184 1,058 1,126 53 YEARS 2,127 1,033 1,094 54 YEARS 2,152 1,035 1,117 55 TO 59 YEARS 11,120 5,297 5,823 55 YEARS 2,160 1,032 1,128 56 YEARS 2,205 1,053 1,152 57 YEARS 2,277 1,093 1,185 58 YEARS 2,204 1,048 1,156 59 YEARS 2,274 1,072 1,202 60 TO 64 YEARS 10,898 5,067 5,831 60 YEARS 2,257 1,057 1,201 61 YEARS 2,198 1,024 1,174 62 YEARS 2,159 1,002 1,157 63 YEARS 2,156 1,003 1,153 64 YEARS 2,127 961 1,146 65 TO 69 YEARS 9,889 4,495 5,394 65 YEARS 2,190 1,011 1,179 66 YEARS 2,070 953 1,118 67 YEARS 1,953 889 1,064 68 YEARS 1,842 829 1,013 69 YEARS 1,834 814 1,020 70 TO 74 YEARS 7,779 3,329 4,450 70 YEARS 1,706 750 956 71 YEARS 1,612 700 912 72 YEARS 1,567 672 895 73 YEARS 1,468 617 851 74 YEARS 1,426 590 836 75 TO 79 YEARS 5,777 2,264 3,513 75 YEARS 1,332 544 789 76 YEARS 1,244 495 749 77 YEARS 1,156 450 706 78 YEARS 1,067 407 660 79 YEARS 978 368 610 80 TO 84 YEARS 3,524 1,225 2,298 80 YEARS 874 318 556 81 YEARS 772 272 500 82 YEARS 680 237 443 83 YEARS 630 213 417 84 YEARS 568 186 382 85 YEARS AND OVER 2,867 806 2,061 1 TO 4 YEARS 14,481 7,411 7,070 5 TO 13 YEARS 30,823 15,784 15,039 14 TO 17 YEARS 14,463 7,410 7,053 18 TO 24 YEARS 26,351 12,935 13,416 18 TO 21 YEARS 14,397 7,089 7,308 22 TO 24 YEARS 11,954 5,846 6,108 15 TO 44 YEARS 114,171 56,373 57,798 14 YEARS AND OVER 192,586 91,833 100,753 16 YEARS AND OVER 185,724 88,319 97,405 18 YEARS AND OVER 178,123 84,423 93,700 21 YEARS AND OVER 167,350 79,098 88,252 62 YEARS AND OVER 36,278 15,106 21,172 65 YEARS AND OVER 29,835 12,119 17,716 MEDIAN AGE YEARS 32.2 31.1 33.3 July 1, 1987 Both Sexes 80-Based Estimates of Civ. Pop'n by Age (IN THOUSANDS) TOTAL 0-4 5-14 15-19 20-24 25-29 UNITED STATES 241660 11825 23414 61830 91918 221574 NORTHEAST 50161 3410 6408 3759 4038 4330 NEW ENGLAND 12795 866 1591 965 1062 1175 MIDDLE ATLANTIC 37366 2543 4817 2794 2976 3155 MIDWEST 59393 4361 8531 4573 4765 5349 EAST NORTH CENTRAL 41833 3047 6022 3276 3386 3761 WEST NORTH CENTRAL 17560 1314 2509 1297 1379 1588 SOUTH 82978 6356 12067 6439 6608 7337 SOUTH ATLANTIC 41097 2947 5538 3106 3229 3557 EAST SOUTH CENTRAL 15189 1092 2302 1232 1240 1337 WEST SOUTH CENTRAL 26692 2318 4227 2101 2130 2443 WEST 49128 4124 7140 3539 3771 4559 MOUNTAIN 13047 1142 2058 982 1017 1210 PACIFIC 36081 2983 5082 2557 2754 3349 30-34 35-44 45-54 55-59 60-64 65-74 UNITED STATES 21081 34024 23240 11120 10898 17667 NORTHEAST 4158 7105 5050 2569 2548 4003 NEW ENGLAND 1093 1852 1235 620 616 997 MIDDLE ATLANTIC 3065 5243 3815 1949 1932 3007 MIDWEST 5116 8113 5661 2742 2669 4342 EAST NORTH CENTRAL 3611 5750 4022 1950 1896 3024 W22EST NORTH CENTRAL 1505 2363 1639 792 772 1318 SOUTH 7093 11507 7979 3748 3681 6073 SOUTH ATLANTIC 3449 5793 4097 1970 1996 3278 EAST SOUTH CENTRAL 1254 2054 1465 680 651 1106 WEST SOUTH CENTRAL 2390 3660 2418 1099 1033 1689 WEST 4715 7300 4550 2061 2000 3248 MOUNTAIN 1217 1863 1152 519 497 853 PACIFIC 3497 5437 3398 1542 1503 2395 75-84 85+ <1 0-16 65+ UNITED STATES 9301 2867 3771 59781 29835 NORTHEAST 2115 668 716 11300 6787 NEW ENGLAND 539 183 182 2834 1719 MIDDLE ATLANTIC 1576 485 534 8465 5068 MIDWEST 2382 792 891 14739 7516 EAST NORTH CENTRAL 1582 506 625 10402 5113 WEST NORTH CENTRAL 799 286 266 4337 2403 SOUTH 3182 908 1304 21059 10163 SOUTH ATLANTIC 1665 464 613 9742 5408 EAST SOUTH CENTRAL 602 174 220 3904 1882 WEST SOUTH CENTRAL 915 270 471 7413 2874 WEST 1622 499 860 12683 5369 MOUNTAIN 418 118 234 3597 1389 PACIFIC 1203 382 626 9086 3980 July 1, 1987 Male 80-Based Estimates of Civ. Pop'n by Age (IN THOUSANDS) TOTAL 0-4 5-14 15-19 20-24 25-29 UNITED STATES 116959 9341 17486 9275 9368 10651 NORTHEAST 23965 1745 3282 1901 1962 2119 NEW ENGLAND 6138 444 816 487 517 577 MIDDLE ATLANTIC 17827 1302 2466 1414 1446 1543 MIDWEST 28841 2234 4373 2323 2347 2666 EAST NORTH CENTRAL 20303 1561 3087 1664 1667 1870 WEST NORTH CENTRAL 8538 674 1286 659 680 796 SOUTH 39968 3250 6176 3258 3196 3584 SOUTH ATLANTIC 19666 1507 2834 1565 1550 1717 EAST SOUTH CENTRAL 7298 558 1180 627 600 652 WEST SOUTH CENTRAL 13005 1185 2162 1065 1045 1214 WEST 24184 2112 3655 1793 1863 2283 MOUNTAIN 6446 584 1053 496 498 608 PACIFIC 17738 1527 2602 1297 1365 1751 30-34 35-44 45-54 55-59 60-64 65-74 UNITED STATES 10433 16645 11275 5297 5067 7824 NORTHEAST 2034 3434 2424 1215 1173 1736 NEW ENGLAND 539 907 600 295 285 435 MIDDLE ATLANTIC 1495 2527 1824 920 888 1301 MIDWEST 2550 3990 2765 1323 1248 1919 EAST NORTH CENTRAL 1795 2823 1962 938 886 1330 WEST NORTH CENTRAL 755 1167 804 385 362 589 SOUTH 3481 5589 3839 1763 1692 2677 SOUTH ATLANTIC 1677 2802 1968 919 911 1447 EAST SOUTH CENTRAL 617 994 699 319 298 480 WEST SOUTH CENTRAL 1187 1793 1173 525 483 750 WEST 2368 3633 2247 996 954 1491 MOUNTAIN 617 927 570 251 238 398 PACIFIC 1751 2706 1677 745 716 1094 75-84 85+ <1 0-16 65+ UNITED STATES 3489 806 1931 30609 12119 NORTHEAST 762 178 367 5785 2675 NEW ENGLAND 192 46 93 1452 673 MIDDLE ATLANTIC 570 132 273 4332 2002 MIDWEST 883 219 457 7556 3021 EAST NORTH CENTRAL 582 138 320 5332 2051 WEST NORTH CENTRAL 301 81 136 2225 971 SOUTH 1201 263 666 10776 4141 SOUTH ATLANTIC 634 135 314 4984 2216 EAST SOUTH CENTRAL 223 50 112 2000 753 WEST SOUTH CENTRAL 344 78 240 3792 1172 WEST 644 146 441 6493 2281 MOUNTAIN 171 36 120 1840 605 PACIFIC 473 110 321 4653 1677 July 1, 1987 Female 80-Based Estimates of Civ. Pop'n by Age (IN THOUSANDS) TOTAL 0-4 5-14 15-19 20-24 25-29 UNITED STATES 124702 8910 16659 9034 9814 10923 NORTHEAST 26196 1665 3126 1858 2075 2210 NEW ENGLAND 6657 423 775 479 546 599 MIDDLE ATLANTIC 19539 1242 2351 1379 1530 1612 MIDWEST 30553 2127 4157 2250 2418 2683 EAST NORTH CENTRAL 21530 1486 2935 1612 1719 1891 WEST NORTH CENTRAL 9022 640 1222 638 699 792 SOUTH 43010 3106 5891 3181 3412 3753 SOUTH ATLANTIC 21432 1440 2704 1540 1688 1839 EAST SOUTH CENTRAL 7891 534 1122 605 640 685 WEST SOUTH CENTRAL 13687 1133 2064 1035 1084 1229 WEST 24944 2012 3485 1746 1908 2277 MOUNTAIN 6601 557 1006 486 520 603 PACIFIC 18343 1455 2480 1260 1388 1674 30-34 35-44 45-54 55-59 60-64 65-74 UNITED STATES 10647 17379 11965 5823 5831 9844 NORTHEAST 2123 3671 2627 1354 1376 2268 NEW ENGLAND 554 945 636 324 331 562 MIDDLE ATLANTIC 1569 2725 1991 1029 1045 1706 MIDWEST 2566 4123 2895 1419 1420 2423 EAST NORTH CENTRAL 1816 2928 2060 1012 1010 1694 WEST NORTH CENTRAL 749 1195 836 407 410 729 SOUTH 3612 5918 4140 1986 1989 3396 SOUTH ATLANTIC 1771 2992 2129 1051 1086 1831 EAST SOUTH CENTRAL 638 1059 766 361 353 627 WEST SOUTH CENTRAL 1203 1867 1245 574 550 939 WEST 2346 3667 2303 1065 1046 1757 MOUNTAIN 600 936 582 268 259 455 PACIFIC 1746 2731 1722 797 787 1302 75-84 85+ <1 0-16 65+ UNITED STATES 5812 2061 1841 29172 17716 NORTHEAST 1354 490 349 5515 4111 NEW ENGLAND 347 137 88 1382 1046 MIDDLE ATLANTIC 1006 353 261 4133 3065 MIDWEST 1499 573 435 7183 4494 EAST NORTH CENTRAL 1000 368 305 5071 3062 WEST NORTH CENTRAL 499 205 130 2113 1432 SOUTH 1981 645 637 10284 6023 SOUTH ATLANTIC 1032 329 299 4758 3191 EAST SOUTH CENTRAL 378 124 108 1905 1129 WEST SOUTH CENTRAL 571 192 231 3621 1702 WEST 978 353 419 6190 3088 MOUNTAIN 248 82 114 1757 785 PACIFIC 730 272 305 4433 2303 *The NHDS used the civilian noninstitutionalized population to calculate hospital utilization rates from l965 through l980. Beginning in l98l, the civilian resident population has been used to calculate rates. If you have purchased NHDS tapes for years before l98l and calculated rates using the civilian noninstitutionalized population provided in the docu- mentation, these rates will have to be adjusted to be comparable to l985 rates using the civilian resident population.DISCHARGE POPULATIONS 1985 DISCHARGE POPULATION FOR NHDS - 1985 RACE AGE White Black Natv Asian Other Unknown TOTAL GROUPS Amer MALES Nwbn 1,328,409 283,574 7,393 24,656 56,822 252,575 1,953,429 < 1 298,253 82,862 3,612 3,657 11,979 48,396 448,759 1- 4 373,007 96,937 3,630 5,431 11,846 50,417 541,268 5-14 511,983 102,545 1,902 6,678 12,437 72,443 707,988 15-24 840,565 140,366 6,489 9,178 25,687 130,978 1,153,263 25-34 1,069,152 225,067 5,096 16,208 37,987 168,820 1,522,330 35-44 1,060,692 199,328 7,015 18,371 33,483 158,881 1,477,770 45-54 1,190,806 199,360 3,587 13,881 28,803 160,030 1,596,467 55-64 1,751,823 184,457 4,236 22,884 28,909 187,098 2,179,407 65-74 1,957,101 174,441 3,678 20,651 22,163 210,876 2,388,910 > 75 1,785,239 141,694 4,241 21,052 15,610 176,468 2,144,304 ALL MALES 12,167,030 1,830,631 50,879 162,647 285,726 1,616,982 16,113,895 FEMALES Nwbn 1,226,459 282,976 6,364 31,280 54,729 238,694 1,840,502 < 1 225,694 63,130 992 4,977 10,696 32,354 337,843 1- 4 260,783 68,526 2,353 4,247 7,931 35,824 379,664 5-14 400,671 77,415 2,879 7,190 11,753 56,528 556,436 15-24 2,216,867 618,547 17,477 32,785 99,136 383,107 3,367,919 25-34 3,005,900 585,170 16,270 66,060 100,756 524,661 4,298,817 35-44 1,499,852 317,137 8,981 29,891 51,556 238,909 2,146,326 45-54 1,284,918 196,221 7,052 16,941 32,214 164,144 1,701,490 55-64 1,699,586 200,422 4,658 17,194 24,651 185,696 2,132,207 65-74 2,139,909 220,297 6,004 16,597 18,520 221,176 2,622,503 > 75 2,805,962 215,240 2,607 14,834 23,990 289,830 3,352,463 ALL FEMALES 16,766,601 2,845,081 75,637 241,996 435,932 2,370,923 22,736,170 GRAND TOTAL 28,933,631 4,675,712 126,516 404,643 721,658 3,987,905 38,850,065 1986 DISCHARGE POPULATION FOR NHDS - 1986 RACE AGE White Black Natv Asian Other Unknown TOTAL GROUPS Amer MALES Nwbn 1,271,162 296,458 6,998 29,580 79,876 269,546 1,953,620 < 1 288,316 81,205 2,774 6,096 7,532 50,129 436,052 1- 4 321,975 84,772 2,439 5,678 14,042 62,651 491,557 5-14 490,467 96,842 2,153 5,919 12,893 67,548 675,822 15-24 799,307 151,165 4,173 12,570 29,741 124,695 1,121,651 25-34 1,034,745 235,146 7,318 16,230 42,194 180,449 1,516,082 35-44 1,027,238 220,806 8,042 16,318 28,918 160,801 1,462,123 45-54 1,104,048 188,808 5,334 13,296 28,330 163,581 1,503,397 55-64 1,627,965 171,847 5,384 22,713 31,769 206,115 2,065,793 65-74 2,008,679 174,758 7,029 22,383 24,728 237,538 2,475,115 > 75 1,785,230 139,465 5,872 29,373 15,912 225,864 2,201,716 ALL MALES 11,759,132 1,841,272 57,516 180,156 315,935 1,748,917 15,902,928 FEMALES Nwbn 1,197,956 267,616 7,538 23,962 68,264 232,504 1,797,840 < 1 197,163 49,335 2,125 3,019 6,340 36,948 294,930 1- 4 239,508 59,411 1,981 5,510 5,340 40,245 351,995 5-14 387,310 77,115 3,019 4,081 9,625 51,106 532,256 15-24 1,993,699 595,696 16,396 28,886 112,041 422,334 3,169,052 25-34 2,801,189 563,175 12,749 62,798 116,031 540,626 4,096,568 35-44 1,471,763 281,726 6,550 28,665 44,767 258,799 2,092,270 45-54 1,209,612 204,707 4,366 17,503 30,624 173,186 1,639,998 55-64 1,628,950 214,906 5,448 19,686 23,144 198,575 2,090,709 65-74 2,173,457 198,912 3,719 17,977 23,343 248,969 2,666,377 > 75 2,772,707 225,626 5,553 17,797 24,471 326,298 3,372,452 ALL FEMALES 16,073,314 2,738,225 69,444 229,884 463,990 2,529,590 22,104,447 GRAND TOTAL 27,832,446 4,579,497 126,960 410,040 779,925 4,278,507 38,007,375 1987 DISCHARGE POPULATION FOR NHDS - 1987 RACE AGE White Black Natv Asian Other Unknown TOTAL GROUPS Amer MALES Nwbn 1,297,759 297,392 11,754 33,349 98,466 293,857 2,032,577 < 1 275,500 69,486 3,145 5,047 19,509 42,850 415,537 1- 4 311,975 91,148 3,752 7,414 15,051 48,695 478,035 5-14 454,567 98,974 3,362 6,223 18,215 62,494 643,835 15-24 717,737 146,918 7,131 9,004 44,486 120,354 1,045,630 25-34 970,982 215,144 7,729 13,159 49,159 159,552 1,415,725 35-44 998,823 201,085 6,273 13,728 43,642 149,070 1,412,621 45-54 1,055,229 176,113 4,695 13,488 27,930 174,079 1,451,534 55-64 1,641,266 165,618 6,955 22,495 30,582 209,818 2,076,734 65-74 1,932,003 165,096 3,762 21,283 29,781 263,715 2,415,640 > 75 1,741,736 157,750 6,917 18,896 24,225 263,385 2,212,909 ALL MALES 11,397,577 1,784,724 65,475 164,086 401,046 1,787,869 15,600,777 FEMALES Nwbn 1,229,199 291,564 10,550 32,250 91,495 283,163 1,938,221 < 1 193,753 59,927 2,536 2,968 11,848 36,014 307,046 1- 4 216,143 57,658 2,829 5,133 10,982 33,087 325,832 5-14 362,142 67,547 4,591 5,037 17,178 60,740 517,235 15-24 1,884,177 560,858 19,149 29,934 144,407 410,881 3,049,406 25-34 2,836,674 556,131 18,989 66,926 148,618 538,400 4,165,738 35-44 1,445,732 272,320 7,964 29,834 64,620 231,919 2,052,389 45-54 1,145,619 194,344 7,708 20,572 36,912 193,159 1,598,314 55-64 1,515,998 202,847 5,564 16,025 34,194 197,803 1,972,431 65-74 2,020,095 196,748 3,794 20,455 28,804 277,563 2,547,459 > 75 2,655,780 210,736 5,908 15,947 31,570 362,703 3,282,644 ALL FEMALES 15,505,312 2,670,680 89,582 245,081 620,628 2,625,432 21,756,715 GRAND TOTAL 26,902,889 4,455,404 155,057 409,167 1,021,674 4,413,301 37,357,492MODIFICATIONS TO ICDA-8 CLASS. OF DISEASES & SUPP. CLASS. (70-87) (Since diagnostic codes must have four positions, a final zero is added to each three-digit ICDA code that contains no fourth digit breakdown. Care should be used not to confuse these added fourth digit zeros with the four-digit ICDA codes. These modifications are to be used with reference to corrections and changes, see: Updated ICDA Errata through 1970. Medical Record News 42(2):48-55, April 1971.) NOTE: On tapes, Y codes are represented by ampersand (&), A codes by asterisk (*), and R codes by dash (-). ICDA Code 180 ICDA Code NHDS Modification 180 Modified by adding 180.0, 180.1 180.0 Carcinoma-in-situ of cervix uteri 180.1 Carcinoma of endocervix, ectocervix and cervical os Excludes: carcinoma-in-situ of above sites (180.0) ICDA Code 198a ICDA Code NHDS Modification 198a Modified by adding 198.6-198.8 and changing 198.9 as follows: 198.6 Lip, tongue, salivary glands, gums, mouth, specified as secondary Includes: conditions in 140-145, specified as secondary 198.7 Oropharynx, nasopharynx, hypopharynx, pharynx NOS, specified as secondary Includes: conditions in 146-149, specified as secondary 198.8 Connective and other soft tissue, specified as secondary Includes: conditions in 171, specified as secondary 198.9 Other ill-defined sites, specified as secondary Includes: conditions in 195, specified as secondary aApplies to 1971-1973 data only. ICDA Code 199a ICDA Code NHDS Modification 199a Modified by changing 199 and adding 199.2-199.9: 199 Malignant neoplasm of unspecified site and other secondary malignant neoplasm 199.2 Breast, specified as secondary Includes: conditions in 174, specified as secondary 199.3 Cervix uteri, uterus, specified as secondary Includes: conditions in 180-182, specified as secondary 199.4 Ovary, fallopian tubes, vagina, vulva, other female organs, specified as secondary Includes: conditions in 183-184, specified as secondary 199.5 Prostate, specified as secondary Includes: conditions in 185, specified as secondary 199.6 Testis, other male genital organs, specified as secondary Includes: conditions in 186-187, specified as secondary 199.7 Thyroid gland, specified as secondary Includes: conditions in 193, specified as secondary 199.8 Adrenal gland, parathyroid gland, thymus, pituitary gland, pineal gland, other endocrine glands, specified as secondary Includes: conditions in 194, specified as secondary 199.9 Spleen, specified as secondary aApplies to 1971-1973 data only. ICDA Code 234.0 ICDA Code NHDS Modification 234.0 Omitted; coded to 180.0 ICDA Code 250 ICDA Code NHDS Modification 250 Modified by redefining 250.0, 250.9 and adding 250.8: 250.0 Diabetes with no other classifiable condition reported 250.8 Diabetes with classifiable conditions not specified as diabetic or due to diabetes and not listed in 250.9 250.9 Diabetes with: any condition specified as "diabetic" or due to diabetes any of the following with the etiology unspecified: abscess, acidosis, cataract, coma, gangrene, infection, intercapillary glomerulosclerosis, nephropathy, neuropathy of any type, other eye complications, polyuria, retinitis, ulcer any condition indexed under diabetes or with "diabetic" as an intent term under the condition Requires: adverse effect of insulin (962.3) for hypoglycemia with coma ICDA Codes 292.0-292.3, 292.9 ICDA Code NHDS Modification 292.0-292.3, 292.9 Omitted; coded to 292 ICDA Codes 293.0-293.5, 293.9 ICDA Code NHDS Modification 293.0-293.5, 293.9 Omitted; coded to 293 ICDA Codes 294.0-294.4, 294.8-294.9 ICDA Code NHDS Modification 294.0-294.4, 294.8-294.9 Omitted; coded to 294 ICDA Codes 300-304 ICDA Code NHDS Modification 300-304 The following "Excludes" note was omitted: 300-304 Excludes: when associated with physical conditions (309) ICDA Codes 309.0-309.9 ICDA Code NHDS Modification 309.0-309.9 Omitted; coded to 309 ICDA Codes 310-315 ICDA Code NHDS Modification 310-315 Fourth digits not used; coded to major headings ICDA Code 353 ICDA Code NHDS Modification 353 "Includes" and "Excludes" notes modified: 353 Includes: infectional Excludes: lumbosacral radiculitis (728.8), sciatica NOS (728.8), and that due to displacement of intervertebral disc (725) ICDA Codes 379.0-379.3 ICDA Code NHDS Modification 379.0-379.3 Omitted; coded to 379 ICDA Code 400.1 ICDA Code NHDS Modification 400.1 Modified as follows: 400.1 Malignant hypertension with heart involvement in 427.1-429 only Excludes: malignant hypertension with other heart conditions ICDA Code 400.2 ICDA Code NHDS Modification 400.2 Omitted; coded to 400.0 and other applicable condition(s) ICDA Code 400.3 ICDA Code NHDS Modification 400.3 Modified as follows: 400.3 Malignant hypertension with renal involvement in 403, 580-584, 593.2, or 792 only ICDA Code 400.9 ICDA Code NHDS Modification 400.9 Omitted; coded to 400.0 and other applicable condition(s) ICDA Code 413 ICDA Code NHDS Modification 413 Not coded when reported with conditions classified to 410-412 ICDA Codes 430-438 ICDA Code NHDS Modification 430-438 "Excludes" note omitted; "Requires" note added: 430-438 Requires: additional code for malignant hypertension (400.0) ICDA Code 463 ICDA Code NHDS Modification 463 Additional "Excludes" note added: 463 Excludes: tonsillitis (acute) with tonsillectomy or tonsillectomy and adenoidectomy (500) ICDA Code 465 ICDA Code NHDS Modification 465 "Includes" note added: 465 Includes: any two or more conditions classifiable to 460-465 ICDA Code 511.2 ICDA Code NHDS Modification 511.2 "Includes" and "Excludes" notes added: 511.2 Includes: pleural effusion NOS Excludes: pleural effusion with tuberculosis reported on the abstract (012.2) ICDA Code 631 ICDA Code NHDS Modification 631 "Requires" note added: 631 Requires: additional code(s) for specific infections (635, 670-671, 673.9) ICDA Codes 631.0-631.3 ICDA Code NHDS Modification 631.0-631.3 Modified by changing "with sepsis" to "with or without sepsis" ICDA Codes 631.4-631.6, 631.9 ICDA Code NHDS Modification 631.4-631.6, 631.9 Omitted; coded to 631.0-631.3 ICDA Codes 640-645 ICDA Code NHDS Modification 640-645 "Requires" note added: 640-645 Requires: additional code(s) for specific infections (635, 670, 671, 673.9) and other conditions due to abortion ICDA Codes 640.0-640.2, 640.9 ICDA Code NHDS Modification 640.0-640.2, 640.9 Omitted; coded to 640 ICDA Codes 641.0-641.2, 641.9 ICDA Code NHDS Modification 641.0-641.2, 641.9 Omitted; coded to 641 ICDA Codes 642.0-642.3, 642.9 ICDA Code NHDS Modification 642.0-642.3, 642.9 Omitted; coded to 642 ICDA Codes 643.0-643.2, 643.9 ICDA Code NHDS Modification 643.0-643.2, 643.9 Omitted; coded to 643 ICDA Codes 644.0-644.2, 644.9 ICDA Code NHDS Modification 644.0-644.2, 644.9 Omitted; coded to 644 ICDA Codes 645.0-645.2, 645.9 ICDA Code NHDS Modification 645.0-645.2, 645.9 Omitted; coded to 645 ICDA Code 650 ICDA Code NHDS Modification 650 Modified by adding 650.0-650.2: 650.0 Delivery without mention of complication 650.1 Delivery with complication of child-bearing not classifiable to 651.1-662 (no other delivery code will be used with 650.1) Includes: delivery NOS with complications of pregnancy and/or puerperium 650.2 Delivery with: no other classifiable condition but with a classifiable operation any condition not classifiable to the 630-678 categories (no other delivery code will be used with 650.2) ICDA Code 661 ICDA Code NHDS Modification 661 Modified by adding 661.7: 661.7 Delivery of stillborn Includes: delivery with fetal death with gestation of 28 weeks or more; delivery with fetal death with gestation not stated Excludes: delivery of stillborn with gestation of 27 weeks or less (640-645) ICDA Code 728.8 ICDA Code NHDS Modification 728.8 "Includes" and additional "Excludes" notes added: 728.8 Includes: sciatica NOS Excludes: sciatica, infectional (353) ICDA Codes 760-771 ICDA Code NHDS Modification 760-771 Omitted ICDA Code 773 ICDA Code NHDS Modification 773 Omitted ICDA Code 779 ICDA Code NHDS Modification 779 Omitted ICDA Code 793 ICDA Code NHDS Modification 793 Modified by changing definitions for 793, 793.0-793.1, 793.8-793.9 and adding 793.2-793.7: 793 Observation and tests with negative or unspecified findings Includes: "suspected" disorders when "negative," "ruled out," or "no disease found" is stated Excludes: "suspected" disorders with no mention of findings 793.0 Observation or tests for mental conditions 793.1 Observation or tests for malignant neoplasms 793.2 Observation or tests for tuberculosis 793.3 Observation or tests following accident 793.4 Observation or tests for cardiovascular conditions 793.5 Observation or tests for gastrointestinal disorders 793.6 Observation or tests for neurological conditions except mental as in 793.0 793.7 Observation or tests for genitourinary disorders Excludes: pregnancy examination, pregnancy unconfirmed (Y004) 793.8 Observation or tests for other specified conditions 793.9 Observation or tests for unspecified conditions Includes: general examination for well persons Excludes: well baby and child care (Y005) ICDA Code 795 ICDA Code NHDS Modification 795 Omitted ICDA Codes 796.2-796.3 ICDA Code NHDS Modification 796.2-796.3 Omitted ICDA Code 796.9 ICDA Code NHDS Modification 796.9 Modified and added to as follows: 796.9 Other unknown and unspecified causes Undiagnosed disease Crib death Unknown cause or mortality or morbidity ICDA Code 821 ICDA Code NHDS Modification 821 Modified by changing 821.0-821.1 and adding 821.6-821.7: 821.0 Shaft, closed Thigh Upper leg 821.1 Shaft, open 821.6 Fracture of femur (closed) NOS 821.7 Fracture of femur (open) NOS ICDA Code 846 ICDA Code NHDS Modification 846 "Includes" note added: 846 Includes: low back sprain lumbar with sacral sprain ICDA Code 847.8 ICDA Code NHDS Modification 847.8 "Includes" note added: 847.8 Includes: multiple strains of back NOS ICDA Code 910.0 ICDA Code NHDS Modification 910.0 Modified as follows: 910.0 Superficial injury of eye only without mention of infection Excludes: face, neck, scalp without mention of infection (996.0) ICDA Code 910.1 ICDA Code NHDS Modification 910.1 Modified as follows: 910.1 Infected superficial injury of eye, face, neck and scalp ICDA Code 911.0 ICDA Code NHDS Modification 911.0 Omitted; coded to 996.1 ICDA Code 912.0 ICDA Code NHDS Modification 912.0 Omitted; coded to 996.2 2ICDA Code 913.0 ICDA Code NHDS Modification 913.0 Omitted; coded to 996.3 ICDA Code 914.0 ICDA Code NHDS Modification 914.0 Omitted; coded to 996.4 ICDA Code 915.0 ICDA Code NHDS Modification 915.0 Omitted; coded to 996.5 2ICDA Code 916.0 ICDA Code NHDS Modification 916.0 Omitted; coded to 996.6-996.7 ICDA Code 917.0 ICDA Code NHDS Modification 917.0 Omitted; coded to 996.7 ICDA Code 918.0 ICDA Code NHDS Modification 918.0 Omitted; coded to 996.8 ICDA Codes 920, 922-929 ICDA Code NHDS Modification 920, 922-929 Omitted; coded to 996 ICDA Codes 978-979 ICDA Code NHDS Modification 978-979 Omitted; coded to individual adverse effects ICDA Code 996 ICDA Code NHDS Modification 996 "Includes" note added to as follows: 996 Includes: injury NOS superficial injury without mention of infection, except eye (910.0) contusion, except eye (921) E Codes ICDA Code NHDS Modification E codes NHDS does not code E codes ICDA Codes Y00.0-Y00.3, Y00.6-Y00.9 ICDA Code NHDS Modification Y00.0-Y00.3, Y00.6-Y00.9 Omitted; coded to 793.0-793.9 ICDA Codes Y02.0-Y02.9 ICDA Code NHDS Modification Y02.0-Y02.9 Omitted; coded to Y02 ICDA Code Y03 ICDA Code NHDS Modification Y03 Omitted ICDA Codes Y03.0-Y03.2 ICDA Code NHDS Modification Y03.0-Y03.2 Omitted; coded to 019 ICDA Codes Y03.3-Y03.4, Y03.9 ICDA Code NHDS Modification Y03.3-Y03.4, Y03.9 Omitted; coded to Y10 ICDA Codes Y06.0-Y06.1 ICDA Code NHDS Modification Y06.0-Y06.1 Omitted; coded to Y06 ICDA Code Y07 ICDA Code NHDS Modification Y07 "Excludes" note added: Y07 Excludes: patient admitted in any stage of delivery (650-662) patient admitted with post-partum abnormality (670-678) ICDA Code Y09.0 ICDA Code NHDS Modification Y09.0 "Includes" note added: Y09.0 Includes: patients admitted for sterilization with indications other than illness (e.g., multi-parity or socio-economic problems) habitual aborter, not now pregnant, admitted for sterilization ICDA Code Y09.9a ICDA Code NHDS Modification Y09.9a "Includes" and "Excludes" notes added: Y09.9 Includes: Healthy donors of skin, bone, or blood Excludes: Organ donors (Y14) aApplies to 1971-1973 data only. ICDA Code Y10.2 ICDA Code NHDS Modification Y10.2 "Includes" and "Excludes" notes added: Y10.2 Includes: admission for irrigation Excludes: malfunction or complication ICDA Code Y10.4 ICDA Code NHDS Modification Y10.4 "Includes" note added: Y10.4 Includes: admitted for removal or change of cast, splints, pins, plates, rods, or other orthopedic device ICDA Code Y10.5 ICDA Code NHDS Modification Y10.5 "Includes" note added: Y10.5 Includes: admission for change of dressing, removal of sutures, catheters, packing tracheostomy status, gastrostomy status, other artificial openings ICDA Code Y11.9 ICDA Code NHDS Modification Y11.9 "Includes" note added: Y11.9 Includes: admission for "face lift" without classifiable condition ICDA Code Y12.4 ICDA Code NHDS Modification Y12.4 Omitted; coded to Y10.2 ICDA Codes Y14, Y14.0-Y14.3, Y14.9b ICDA Code NHDS Modification Y14, Y14.0-Y14.3, Y14.9b Omitted; coded to Y09.9 bApplies to 1970 and 1974-1978 data only. ICDA Codes Y15, Y15.0-Y15.3, Y15.9 ICDA Code NHDS Modification Y15, Y15.0-Y15.3, Y15.9 Omitted ICDA Code Y20 ICDA Code NHDS Modification Y20 Modified and "Includes" note added: Y20 Single born, without mention of immaturity or any other codable condition Includes: only premature, immature, or well infants born this admission ICDA Codes Y21-Y29 ICDA Code NHDS Modification Y21-Y29 "Includes" note added: Y21-Y29 Includes: only premature, immature, or well infants born this admission ICDA Code Y30 ICDA Code NHDS Modification Y30 OmittedMODIFICATIONS (CONTINUED) New ICDA Code ICDA Code NHDS Modification --- Code 00.0 added: 00.0 Use when an operation is not indexed and there is no information reported to aid in the assignment of a more specific operation code ICDA Code 01.1 ICDA Code NHDS Modification 01.1 Omitted; coded to 01.7 ICDA Code 01.7 ICDA Code NHDS Modification 01.7 "Requires" note omitted ICDA Code 14 ICDA Code NHDS Modification 14 Modified by adding 14.6: 14.6 Extraction of cataract NOS Includes: extraction of lens NOS ICDA Code 19.3 ICDA Code NHDS Modification 19.3 "Excludes" note omitted ICDA Code 20.5 ICDA Code NHDS Modification 20.5 Additional "Includes" note added: 20.5 Includes: tracheolaryngotomy ICDA Code 21.6 ICDA Code NHDS Modification 21.6 Additional "Includes" note added: 21.6 Includes: excision of branchial cleft cyst ICDA Code 22.0 ICDA Code NHDS Modification 22.0 Modified by omitting "laryngotracheotomy" and "tracheolaryngotomy" from list (20.5) ICDA Code 22.6 ICDA Code NHDS Modification 22.6 Omitted; coded to 21.6 ICDA Code 25.2 ICDA Code NHDS Modification 25.2 Additional "Includes" note added: 25.2 Includes: radical neck dissection (excision) ICDA Code 30.2 ICDA Code NHDS Modification 30.2 Modified by changing definition: 30.2 Cardiac catherterization, right or left heart ICDA Code 30.3 ICDA Code NHDS Modification 30.3 Omitted; coded to 30.2 ICDA Code 30.6 ICDA Code NHDS Modification 30.6 Modified and "Excludes" note added: 30.6 Open heart surgery (with or without cardiopulmonary bypass) NOS Excludes: that involving specified heart surgery (29.2-29.6) ICDA Code 30.7 ICDA Code NHDS Modification 30.7 Omitted; coded to 30.6 ICDA Code 40.3 ICDA Code NHDS Modification 40.3 "Includes" note added and Excludes" note changed: 40.3 Includes: abdominal adhesions, adhesions NOS, pelvic-- male only Excludes: adhesions, pelvic--female (71.8) ICDA Code 41.1 ICDA Code NHDS Modification 41.1 "Excludes" note added: 41.1 Excludes: incidental appendectomy ICDA Code 50 ICDA Code NHDS Modification 50 Modified "Includes" note by omitting "those by proctoscopy and sigmoidoscopy;" coded to A4.5 ICDA Code 51 ICDA Code NHDS Modification 51 Modified "Includes" note by omitting "those by anoscopy or proctoscopy;" coded to A4.5 ICDA Code 54 ICDA Code NHDS Modification 54 Modified "Includes" note by omitting "those by pyeloscopy;" coded to A4.6 ICDA Code 54.6 ICDA Code NHDS Modification 54.6 "Excludes" note omitted ICDA Code 54.8 ICDA Code NHDS Modification 54.8 Modified "Includes" note by omitting "use this code for solo procedures only" ICDA Code 55 ICDA Code NHDS Modification 55 Modified "Includes" note by omitting "those by cystoscopy or ureteroscopy;" coded to A4.6 ICDA Code 56 ICDA Code NHDS Modification 56 Modified "Includes" note by omitting "those by cystoscopy (transurethral);" coded to A4.6 ICDA Code 56.8 ICDA Code NHDS Modification 56.8 "Requires" note added: 56.8 Requires: additional code for cystoscopy ICDA Code 57 ICDA Code NHDS Modification 57 Modified "Includes" note by omitting "those by cystoscopy or urethroscopy;" coded to A4.6 ICDA Code 61.2 ICDA Code NHDS Modification 61.2 "Excludes" note added: 61.2 Excludes: routine circumcision for newborn infant born in hospital this admission ICDA Code 65 ICDA Code NHDS Modification 65 Modified by changing 65.7 "Excludes" note, adding 65.8, and adding additional 65.9 "Includes" note: 65.7 Excludes: augmentation mammoplasty (65.8), mammoplasty reduction (65.9) 65.8 Augmentation mammoplasty Includes: that for: acquired absence (total) hypomastia that by: free dermal-fat -fascia graft implantation of prosthetic material local pedicle graft of dermal-fat percutaneous injection 65.9 Includes: reduction mammoplasty, amputative mammoplasty ICDA Code 68c ICDA Code NHDS Modification 68c Modified by adding 68.8: 68.8 Bilateral endoscopic destruction and occlusion of fallopian tubes cApplies to 1977-1978 data only. ICDA Code 69.1 ICDA Code NHDS Modification 69.1 Additional "Includes" note added: 69.1 Includes: hysterectomy NOS ICDA Code 69.4 ICDA Code NHDS Modification 69.4 Additional "Includes" note added: 69.4 Includes: vaginal hysterectomy NOS ICDA Code 71 ICDA Code NHDS Modification 71 Modified "Includes" note by omitting "those by vaginoscopy, colposcopy and culdoscopy;" coded to A4.7, A5.4 ICDA Code 71.6 ICDA Code NHDS Modification 71.6 Additional "Includes" note added: 71.6 Includes: pelvic examination under anesthesia ICDA Code 74.7 ICDA Code NHDS Modification 74.7 Additional "Includes" note added: 74.7 Includes: missed abortion ICDA Codes 75.0-75.6 ICDA Code NHDS Modification 75.0-75.6 Omitted ICDA Code 75.7 ICDA Code NHDS Modification 75.7 "Requires" note omitted ICDA Code 75.8 ICDA Code NHDS Modification 75.8 "Requires" note omitted ICDA Code 75.9 ICDA Code NHDS Modification 75.9 Omitted ICDA Code 77.0 ICDA Code NHDS Modification 77.0 Modified as follows: 77.0 Cesarean section, all types ICDA Codes 77.1-77.2, 77.8-77.9 ICDA Code NHDS Modification 77.1-77.2, 77.8-77.9 Omitted, coded to 77.0 ICDA Codes 82, 82.0-82.2 ICDA Code NHDS Modification 82, 82.0-82.2 Redefined as follows: 82 Reduction of fracture and fracture dislocation 82.0 Reduction (closed or NOS) of fracture without mention of internal fixation as in 82.2 82.1 Open reduction of fracture without mention of fixation as in 82.2 82.2 Reduction (open or closed) of fracture with mention of fixation Includes: reduction or treatment of fracture of sites codable to 82 with mention of the following whether or not traction or cast or any other external support was also mentioned: band, nail, pin, press, screw, caliper, plate, rod, wire, brace, tongs, bolt ICDA Codes 82.3-82.9 ICDA Code NHDS Modification 82.3-82.9 Omitted; coded to 82.0-82.2 ICDA Codes 83-84 ICDA Code NHDS Modification 83-84 Omitted; coded to 82.0-82.2 ICDA Code 86.1 ICDA Code NHDS Modification 86.1 Additional "Includes" note added: 86.1 Includes: excision of carpal tunnel ICDA Code 87.0 ICDA Code NHDS Modification 87.0 Modified as follows: 87.0 Arthroplasty of hip with or without mechanical device ICDA Code 87.1 ICDA Code NHDS Modification 87.1 Omitted; coded to 87.0 ICDA Code 94.2 ICDA Code NHDS Modification 94.2 Omitted; coded to 19.3 ICDA Code 94.4 ICDA Code NHDS Modification 94.4 Omitted; coded to 65.8 ICDA Code 94.5 ICDA Code NHDS Modification 94.5 Modified "Includes" note by omitting "amputative mammoplasty," "reduction mammoplasty," and "breasts (hypertrophic pendulous) (atrophic) (gynecomastia);" coded to 65.9 ICDA Code 96.1 ICDA Code NHDS Modification 96.1 Additional "Includes" note added: 96.1 Includes: frenumectomy ICDA Code 96.2 ICDA Code NHDS Modification 96.2 Modified "Includes" note by omitting "frenumectomy;" coded to 96.1 ICDA Codes 98.0-98.1 ICDA Code NHDS Modification 98.0-98.1 Modified as follows: 98.0 Closed reduction, malar, zygoma, zygomatic arch, maxilla, mandible, alveolus Includes: wiring 98.1 Open reduction, malar, zygoma, zygomatic arch, maxilla, mandible, alveolus Includes: only that which involves the dissection of tissues ICDA Codes 98.2-98.6 ICDA Code NHDS Modification 98.2-98.6 Omitted; coded to 98.0-98.1 ICDA Code A1 ICDA Code NHDS Modification A1 "Excludes" note omitted ICDA Codes A4.2-A4.7, A4.9 ICDA Code NHDS Modification A4.2-A4.7, A4.9 Modified by deleting "without effect upon tissue or lesion" ICDA Codes R1, R4 ICDA Code NHDS Modification R1, R4 Omitted UHDDS CLASS 4 PROCEDURES NOT CODED BY THE NHDS (1979-1987) 08.19 16.21 18.01 18.11 18.19 21.21 21.29 22.19 24.19 25.09 25.91 26.19 27.29 27.91 28.19 29.19 31.48-31.49 41.38-41.39 42.29 44.19 45.19 45.28-45.29 48.23 48.29 49.21 49.29 49.41 58.29 61.19 64.19 64.91 64.94 69.92 70.2l 73.91-73.92 75.35 85.19 86.19 86.92 87.09-87.12 87.16-87.17 87.22-87.29 87.36-87.37 87.39 87.43-87.49 87.69 87.79 87.85-87.89 87.92 87.95-87.99 88.09 88.16-88.31 88.33 88.35 88.37 88.39 89.01-89.13 89.15-89.16 89.26-89.31 89.33-89.39 89.45-89.53 89.55-89.59 89.66 89.7 90.01-91.99 93.01-93.25 93.27-93.28 93.31-93.39 93.42-93.44 93.61-93.91 93.94 93.96 93.99-94.23 94.25 94.29-95.03 95.05-95.11 95.l4-95.15 95.31-95.49 96.09-96.19 96.26-96.28 96.34-97.04 97.14-97.69 97.72-97.89 99.02-99.24 99.26-99.59 99.71-99.79 99.82-99.99 DEFINITIONS OF CERTAIN TERMS USED IN THIS DOCUMENT Hospitals.--Short-stay special and general hospitals having six beds or more for inpatient use and an average length of stay of less than 30 days. Federal hospitals and hospital units of institutions are not included. Bed size of hospital.--Measured by the number of beds, cribs, and pediatric bassinets regularly maintained (set up and staffed for use) for patients; bassinets for newborn infants are not included. Type of ownership of hospital.--The type of organization that controls and operates the hospital. Hospitals are grouped as follows: Voluntary nonprofit.--Hospitals operated by a church or another nonprofit organization. Government.--Hospitals operated by State or local governments. 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. 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. Discharge diagnosis.--One or more diseases or injuries (or special conditions and examinations without sickness or tests with negative findings) that the attending physician assigns to the medical record of patients. (See "MEDICAL CODING AND EDIT") Operation.--One or more surgical operations, procedures, or special treatments that are assigned by the physician to the medical record of patients discharged from the inpatient service of short-stay hospitals. (See "MEDICAL CODING AND EDIT") Age.--Patient's age refers to age at birthday prior to admission to the hospital inpatient service. Race.--Patients are classified into the six groups listed in the Tape Record Format under Race (item 18). Geographic region and division.--Hospitals are classified by location into one of the four geographic regions and nine geographic divisions of the United States (items 20 and 21 in the Tape Record Format), which correspond to those used by the U.S. Bureau of the Census. QUESTIONS Questions concerning data on the tape should be directed to the Hospital Care Statistics Branch, Division of Health Care Statistics, National Center for Health Statistics, Center Building, Room 2-43, 3700 East-West Highway, Hyattsville, Maryland 20782, (301)-436-7125.REFERENCES National Center for Health Statistics: Development of the Design of the NCHS Hospital Discharge Survey, by W. R. Simmons. Vital and Health Statistics. PHS Pub. No. 1000, Series 2-No. 39. Public Health Service. Washington. U.S. Government Printing Office, Sept. 1970. National Center for Health Statistics: Development and Maintenance of a national inventory of hospitals and institutions. Vital and Health Statistics. PHS Pub. No. 1000, Series 1 No. 3. Public Health Service. Washington. U.S. Government Printing Office, Feb. 1965. 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.1980.
