Topic/focus: General Health and Nutrition Year(s): 1990, 1991, 1992, 1993, 1994 Source: National Center for Health Statistics Study and sample characteristics: Interview Universe: Non-institutionalized civilians Variables: Varies by file Access: Restricted use Cost: Fees may apply Key web links: See EDRC Coordinator Primary Institutional Contact: EDRC Coordinator (tchelius@mcw.edu)
Summary: The NHIS State Data Files cover the same information as the NHIS, but with the addition of state identifiers. In order to protect respondent confidentiality while providing the data at this level of geography, NCHS added statistical noise at both the record and variable levels.