| Value | Category |
|---|---|
| 00 | No flag |
| 01 | Number GT interval since birth |
| 02 | Number plus amenorrhea GT interval |
| 03 | Number reported, but period not returned |
| 04 | Reported before last birth, but no birth |
| 05 | Reported before last birth, but period since |
| 06 | Reported never menstruated, but period returned |
| 07 | Reported time during pregnancy |
| 08 | Reported never menstruated but had kids |
| 09 | Reported period before last birth |
| 99 | NIU (not in universe) |
| var_concept.title | Vocabulary |
|---|---|
| Fertility Variables -- TOPICS | IPUMS |