| Value | Category |
|---|---|
| 0 | Not using |
| 1 | Pill |
| 2 | IUD |
| 3 | Injections |
| 4 | Diaphragm |
| 5 | Condom |
| 6 | Female sterilization |
| 7 | Male sterilization |
| 8 | Periodic abstinence |
| 9 | Withdrawal |
| 10 | Other |
| 11 | Norplant |
| 12 | Abstinence |
| 13 | Lactational amenorrhea |
| 14 | Female condom |
| 15 | Foam or jelly |
| 17 | Patch |
| 18 | Mucus/Billings/ovulation |
| 19 | Basal body temperature |
| 20 | Symptothermal |
| 21 | Standard days |