Variables | DC+ | DC− | Crude OR | Adjusted OR (95% CI) | P value |
Age > 35 years | 30 | 117 | 3.35 | 0.29 (0.14 - 0.60) | 0.001 |
Gravidity < 3 | 18 | 86 | 3.54 | 0.28 (0.12 - 0.65) | 0.003 |
Parity < 3 | 35 | 129 | 3.42 | 0.29 (0.14 - 0.58) | 0.001 |
Frequency of sexual intercourse/week | 23 | 83 | 2.39 | 0.25 (0.10 - 0.60) | 0.001 |
No past history of abortion | 28 | 99 | 2.60 | 0.24 (0.10 - 0.56) | 0.001 |