Table 1.
Patient characteristics and analysis of risk factors in two groups (%)
| Factor | Case group (n=80) | Control group (n=116) | p-value |
|---|---|---|---|
| Gender | 0.018 | ||
| Male | 53 (66.3) | 57 (49.1) | |
| Female | 27 (33.7) | 59 (50.9) | |
| Gestational age (wk) | <0.001 | ||
| 37 | 32 (40) | 19 (16.4) | |
| 38 | 34 (42.5) | 48 (41.4) | |
| 39 | 6 (7.5) | 25 (21.6) | |
| <40 | 8 (10) | 24 (20.7) | |
| Birth weight (g) | 0.301 | ||
| <2,500 | 3 (3.8) | 1 (0.9) | |
| 2,500-3,000 | 26 (32.5) | 32 (27.6) | |
| 3,000-3,500 | 35 (43.7) | 60 (51.7) | |
| 3,500-4,000 | 12 (15) | 21 (18.1) | |
| >4,000 | 4 (5) | 2 (1.7) | |
| Delivery method | <0.001 | ||
| Vaginal delivery | 22 (27.5) | 101 (87.1) | |
| Cesarean section | 58 (72.5) | 15 (12.9) | |
| Maternal age | 0.103 | ||
| 20s | 7 (8.8) | 23 (19.8) | |
| 30s | 69 (86.3) | 87 (75) | |
| 40s | 4 (5) | 6 (5.2) | |
| Number of pregnancy | <0.001 | ||
| Primipara | 14 (17.5) | 49 (42.2) | |
| Multipara | 66 (82.5) | 67 (57.8) | |
| History of abortion | 0.102 | ||
| With | 22 (27.5) | 24 (20.6) | |
| Without | 58 (72.5) | 92 (79.3) | |
| Complications of pregnancy | 16 (20) | 5 (4.3) | <0.001 |
| PIH | 1 (1.3) | 1 (0.9) | >0.999 |
| Gestational diabetes | 2 (2.5) | 1 (0.9) | 0.568 |
| IUGR | 2 (2.5) | 0 (0) | 0.165 |
| PROM | 3 (3.8) | 1 (0.9) | 0.306 |
| Oligohydramnios | 3 (3.8) | 0 (0) | 0.066 |
| Meconium stain | 9 (11.3) | 2 (1.7) | 0.008 |
Values are presented as number (%).
PIH, pregnancy induced hypertension; IUGR, intrauterine growth restriction; PROM, premature rupture of membranes.