National Health Interview Survey, 1991

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.