By Anonymous - November 8, 2018
Birth-related
| Variable | Meaning |
|---|---|
| PARITY | regarding pregnancy |
| 1 | Has given birth |
| 0 | Has not yet given birth: includes ectopic pregnancies, abortions, and miscarriages |
| -98 | Is pregnant, but has not yet given birth |
| -99 | PREGNANT, LIVEBRTH, YEARAL (year of birth) left blank |
| BPAR | Binary parity |
| 1 | PARITY = 1 |
| 0 | PARITY != 1 |
| CHILDREN | Number of children |
| TOTBFMO | Total number of months breast feeding |
| AFC | Age at First Childbirth |
| -97 | PARITY = 0 |
| -98 | . AFC 13 OR AFC > 58 |
| -99 | YEARAL = . (first childbirth) |