Method | Nulliparous, n (%) N = 120 | Parous, n (%) N = 516 | p value |
---|---|---|---|
Mean age, years | 27.7 | 40.0 | < 0.0001 |
IUD | 2 (1.7) | 220 (42.6) | < 0.0001 |
LNG-IUS | 1 (0.8) | 5 (1.0) | 1.000 |
Condoms | 23 (19.2) | 54 (10.5) | 0.008 |
Condom + rhythm | 25 (20.8) | 125 (24.2) | 0.431 |
Condom + contraception for external use (spermicide) | 7 (5.8) | 27 (5.3) | 0.792 |
COC | 3 (2.5) | 23 (4.4) | 0. 392 |
Long-acting oral contraceptives | 0 (0) | 3 (0.627) | – |
Subdermal implant | 0 (0) | 2 (0.4) | – |
Female sterilization | 0 (0) | 2 (0.4) | – |
Vasectomy | 0 (0) | 1 (0.01) | – |
Coitus interruptus | 1 (0.8) | 37 (7.1) | 0.005 |
Rhythm | 58 (48.3) | 17 (3.3) | < 0.0001 |