Integrated Health Interview Series

Harmonized data and documentation
for the U.S. National Health Interview Survey (NHIS)

  • Annual data from the 1960s to the present
  • Easily linked to additional variables in NHIS public use data
  • Comprehensive on-line documentation
  • Absolutely free!
  • 49 years of data
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  • Over 12,000 integrated variables

Harmonizing