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This is a 4-digit numeric variable.

Description

YEAR is a four-digit variable reporting the calendar year (e.g., 2003) the survey was conducted and the data were collected. YEAR indicates the survey year reported on the household record.

Comparability

This variable is completely comparable before 2019.

The NHIS questionnaire was substantially redesigned in 2019 to introduce a different data collection structure and new content. For more information on changes in terminology, universes, and data collection methods beginning in 2019, please see the user note.

Universe

  • 1963-2018: All households.
  • 2019: Sample adults age 18+ and sample children age 0-17.

Availability

  • 1963-2019

Weights

  • No weights are available for this variable. Please refer to Description for more information.