National Health Interview Survey (NHIS) State Data Files

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 (

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.