NHIS survey description : 2007 National Health Interview Survey (NHIS) public use data release
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NHIS survey description : 2007 National Health Interview Survey (NHIS) public use data release

Filetype[PDF-1.20 MB]

  • English

  • Details:

    • Alternative Title:
      National Health Interview Survey survey description
    • Description:
      The National Health Interview Survey (NHIS) is a multi-purpose health survey conducted by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention (CDC), and is the principal source of information on the health of the civilian, noninstitutionalized, household population of the United States. The NHIS has been conducted continuously since its beginning in 1957. Public use microdata files are released on an annual basis.

      The NHIS Core questionnaire items were revised every 10-15 years, with the last major revisions occurring in 1982 and in 1997. The NHIS that was fielded from 1982-1996 consisted of two parts: (1) a set of basic health and demographic items (known as the Core questionnaire) that remained stable from one survey year to the next, and (2) one or more sets of questions on current health topics that varied with each survey, referred to as Supplements. Despite periodic revisions to the Core questionnaire, Supplements played an increasingly important role in the survey as a means of enhancing topic coverage in the Core. Eventually, certain Supplements, such as “Family Resources” and “Health Insurance,” were incorporated in the NHIS Core on an annual basis.

      The redesigned NHIS introduced in 1997 consists of a Basic Module or Core as well as variable Supplements. The Basic Module, which remains largely unchanged from year to year, consists of three components: the Family Core, the Sample Child Core, and the Sample Adult Core. The Family Core component collects information on everyone in the family, and its sample also serves as a sampling frame for additional integrated surveys, as needed. Information collected for all family members includes: household composition and socio-demographic characteristics, tracking information, information for matches to administrative data bases, and basic indicators of health status, activity limitations, injuries, health insurance coverage, and access to and utilization of health care services.


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