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Reporting Unit classification as of December 31


A Reporting Unit (RU) is a person or group of persons in the sampled DU (Dwelling Unit) who are related by blood, marriage, adoption, foster care, or other family association. RUCLAS reports whether a RU is Standard, New, or a Student. Standard RUs are the original RUs from the National Health Interview Survey. A New RU is created when members of the household leave the primary RU and are followed according to the rules of the survey. A Student RU is an unmarried college student (under 24 years of age) who is considered a usual member of the household, but was living away from home while going to school, and was treated as a Reporting Unit separate from his or her parents' RU for the purpose of data collection.

Codes and Frequencies

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This variable is completely comparable over time.


  • 1996-2019: All persons.


  • 1996-2019



This variable has no flags.