National Health Interview Survey, 1969-1981: Cumulative Core File

<p>The basic purpose of the Health Interview Survey is to obtain information about the amount and distribution of illness, its effects in terms of disability and chronic impairments, and the kind of health services people receive. The Health Interview Survey, 1969-1981 is a cumulative core dataset. Criteria for selection were the following: respondent's age greater than or equal to 30 at the time of the interview, variables of specific substantive interest, information on a given variable being available for at least 8 years, variables selected only once (though parallel entries exist on the input files that were merged), health conditions that were defined as chronic by NHIS and caused or contributed to limitation of activity. (Source: downloaded from ICPSR 7/13/10)</p>
<p><strong>Please Note</strong>: This dataset is part of the historical CISER Data Archive Collection and is also available at ICPSR at <a href="https://doi.org/10.3886/ICPSR08629.v2">https://doi.org/10.3886/ICPSR08629.v2</a>. We highly recommend using the ICPSR version as they may make this dataset available in multiple data formats in the future.</p>