Codes and Frequencies
ETHNICITYNG (V131NG) is a variable specific to Nigeria that reports responses to a question about the woman's ethnic group or native language.
Apart from universe differences and slight differences in question wording, ETHNICITYNG (V131NG) is largely comparable across samples.
While many DHS surveys listed response categories for the interviewer to mark for their ethnicity question, the questionnaires for Nigeria 1999, 2003, 2008, and 2013 included only the question ("What is your ethnic group?") and a blank space for the interviewer to fill in.
The Nigeria 1990 questionnaire asks about the respondent's native language rather than ethnic group.
Comparability - Standard DHS
ETHNICITY (V131) is a country-specific variable included in the standard DHS questionnaire for Phase 2 forward, with no standard wording or response categories.
- Nigeria 1990: All women age 15-49.
- Nigeria 1999: All women age 10-49.
- Nigeria 2003: All women age 15-49.
- Nigeria 2008: All women age 15-49.
- Nigeria 2013: All women age 15-49.