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NCHS

Questionnaires, Datasets, and Related Documentation

Major Changes
Explains the various changes in data collection technology and race/hispanic origin questions from 1975 to the present.
Documentation
- Editing and Imputation of Race and Hispanic Origin Data
- Using NHIS Race and Hispanic Origin Data in Analysis

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Page last reviewed: November 6, 2015
Page last updated: May 14, 2010
Content source:
- CDC/National Center for Health Statistics

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