National Health Interview Survey, 1991 (ICPSR 6049)
Published: Jan 18, 2006
The basic 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. Household variables in this data collection include type of living quarters, size of family, number of families in household, and geographic region. Person variables include sex, age, race, marital status, veteran status, education, income, industry and occupation codes, and limits on activity. The Condition, Doctor Visit, and Hospital Record files contain information on each reported health condition, doctor visit within a two-week period, and hospitalization (12-month recall), respectively.
In preparing the data tape(s) 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
Per agreement with NCHS, ICPSR distributes the data file(s) and technical documentation in this collection in their original form as prepared by NCHS. Part II of the documentation, the Field Representative's Manual, is provided in hard copy only. The age distribution for the Person file is: 0-44 (N = 82,309), 45-54 (N = 12,772), 55-64 (N = 10,235), 65-74 (N = 8,932), and 75+ (N = 5,784).
The NHIS uses a stratified multistage probability sampling design. Four independent representative samples, which may be used in any combination, were drawn. Black persons were oversampled.
Civilian, noninstitutionalized population of the 50 states and the District of Columbia.
Original Release Date
2006-01-12 All files were removed from dataset 6 and flagged as study-level files, so that they will accompany all downloads.
2006-01-18 File MN6049.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).