Risk factor | N (%) |
---|---|
Previous mid-trimester miscarriage | 2 (2.1) |
Previous preterm delivery | 24 (25.3) |
Previous uterine evacuation | 30 (31.6) |
Previous cervical surgery | 1 (1.1) |
Genitourinary infections in current pregnancy | 58 (61.1) |
Periodontal disease | 0 (0.0) |
Inter-pregnancy interval < 6 months | 2 (2.1) |
Smoking | 10 (10.5) |
Alcohol consumption | 4 (4.2) |
Substance abuse | 0 (0.0) |