National Health Interview Survey, 1996 (ICPSR 2661)
Published: Jan 18, 2006
United States Department of Health and Human Services. National Center for Health Statistics
The purpose of the National Health Interview Survey (NHIS) is to obtain information about the amount and distribution of illness, its effects in terms of disability and chronic impairments, and the kinds of health services people receive. The variables in the Household Record file (Part 1) include type of living quarters, size of family, number of families in the household, presence of a telephone, number of unrelated individuals, and region. The Person Record file (Part 2) includes information on sex, age, race, marital status, Hispanic origin, education, veteran status, family income, family size, major activities, health status, activity limits, employment status, and industry and occupation. These variables are found in the Condition, Doctor Visit, and Hospital Record files as well. The Person Record also supplies data on height, weight, bed days, doctor visits, hospital stays, years at residence, and region variables. The Condition Record file (Part 3) contains information for each reported health condition, with specifics on injury and accident reports. The Doctor Visit Record file (Part 4) documents doctor visits within the time period and identifies acute or chronic conditions. The Hospital Record file (Part 5) provides information on medical conditions, hospital episodes, type of service, type of hospital ownership, date of admission and discharge, number of nights in hospital, and operations performed.
In preparing the data files for this collection, the National Center for Health Statistics (NCHS) has removed direct identifiers and characteristics that might lead to identification of data subjects. As an additional precaution NCHS requires, under Section 308(d) of the Public Health Service Act (42 U.S.C. 242m), that data collected by NCHS not be used for any purpose other than statistical analysis and reporting. NCHS further requires that analysts not use the data to learn the identity of any persons or establishments and that the director of NCHS be notified if any identities are inadvertently discovered. ICPSR member institutions and other users ordering data from ICPSR are expected to adhere to these restrictions.
Date of Collection
Data Collection Notes
(1) Per agreement with NCHS, ICPSR distributes the data files and technical documentation in this collection in their original form as prepared by NCHS. (2) The codebook and the coding manual are provided as Portable Document Format (PDF) files. The PDF file format was developed by Adobe Systems Incorporated and can be accessed using PDF reader software, such as the Adobe Acrobat Reader. Information on how to obtain a copy of the Acrobat Reader is provided through the ICPSR Website on the Internet.
The NHIS uses a stratified multistage probability design. The sample for the NHIS is redesigned every decade using population data from the most recent decennial census. A redesigned sample was implemented in 1995, so the sample design for 1996 is different from the sample designs in 1994 and earlier years of the NHIS. This new design includes a greater number of primary sampling units (PSUs) (from 198 in 1994 to 358 for the 1995 design), and a more complicated nonresponse adjustment based on household screening and oversampling of Black and Hispanic persons for more reliable estimates of these groups. Additionally, the 1996 population estimates were adjusted to the national population estimates by age, sex, and race/ethnicity, based on projections from the 1990 United States Census. Part of the 1996 NHIS sample was used for testing of the computer-assisted personal interview (CAPI) system that was implemented for the 1997 NHIS. The CAPI test cases are not included in the 1996 public use file. Relative to 1995, the 1996 NHIS sample size was reduced by approximately 25 percent in the first and second quarters, and by 50 percent in the third and fourth quarters.
Civilian, noninstitutionalized population of the 50 states and the District of Columbia.
Original Release Date
2006-01-18 File DOC2661.MAN.PDF was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads.
2006-01-18 File CB2661.ALL.PDF was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads.
The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.
- The citation of this study may have changed due to the new version control system that has been implemented.
This study is maintained and distributed by the National Archive of Computerized Data on Aging (NACDA), the aging program within ICPSR. NACDA is sponsored by the National Institute on Aging (NIA) at the National Institutes of Heath (NIH).