MENARCHFLAG
Age at first menstrual period: Flag for reasonable values
Codes and Frequencies
Description
For sample female adults age 18 and older, MENARCHFLAG reports whether the reported age when the respondent had her first menstrual period (MENARCH) is a reasonable value (categorized as menses onset between the ages of 9 and 17). Menses onset before age 9 or after age 17 are flagged as potentially unreasonable values.
MENARCHFLAG was first introduced in 1987, as part of a supplement on cancer epidemiology. For related variables, please use the IPUMS NHIS search function or drop-down menus.
Universe
- 1987: Half of female sample persons age 18+ (excluded from CACT supplement).
Availability
- 1987
Weights
- 1987 : SAMPWEIGHT
