Codes and Frequencies
REGIONBR reports region of birth of respondents, by recoding their reported country of origin into one of twelve categories. The initial, non-recoded responses were based on country of birth, which is not necessarily congruent with current citizenship or legal status. The CIA on-line World Factbook was used to place countries into regional categories. Respondents born in Canada were included in the "elsewhere" category to satisfy NCHS confidentiality requirements.
In REGIONBR, the "United States" category includes only persons born in the fifty states and the District of Columbia. Persons born in a U.S. territory can be identified using USBORN for 2002 forward.
- 2000-2013; 2014 2015 2016 2017: All persons.
- 2000-2017 : PERWEIGHT