Table 4.
Variable | Cases N = 452 |
Controls N = 904 |
Crude OR (95% CI) |
Adjusted OR (95% CI) |
Fetal presentation | ||||
Vertex | 271(60.0) | 823(91.1) | 1 | 1 |
Breech | 44(9.7) | 49(5.4) | 2.7 (1.78–4.19)* | 1.8 (0.93–3.66)*** |
Transverse | 43(9.5) | 11(1.2) | 11.9 (6.04–23.35)* | 11.6 (4.62–29.27)* |
Other | 12(2.7) | 11(1.2) | 3.3 (1.44–7.60)** | 3.9 (1.27–12.50)*** |
Unrecorded | 82(18.1) | 10(1.1) | 24.9 (12.73–48.7)* | 3.7 (1.26–11.18)*** |
Gestational age | 2.3 (1.42–3.66)** | |||
Preterm | 109(24.1) | 67(7.4) | 3.8 (2.73–5.28)* | 1 |
Term | 337(74.6) | 787(87.1) | 1 | 0.5 (0.19–1.48) |
Post term | 6(1.3) | 50(5.5) | 0.3 (0.12–0.66)** | |
Mode of delivery | ||||
Spontaneous vaginal | 178(39.4) | 520(57.5) | 1 | 1 |
Caesarean section | 130(28.8) | 313(34.6) | 1.2 (0.93–1.58) | 0.4 (0.25–0.59)* |
Instrumental | 10(2.2) | 64(7.1) | 0.5 (0.23#x02013;0.91) | 0.6 (0.28–1.42) |
Not documented | 2(0.4) | 7(0.8) | 0.8 (0.17–4.05) | 0.4 (0.05–3.26) |
Laparotomy | 102(22.6) | NA | ||
Destructive | 30 (6.6) | NA | ||
Birth weight (kg) | ||||
<1.50 | 43(9.5) | 6(0.7) | 23.6 (9.90–56.02)* | 16.2 (6.06–43.02)* |
1.5–2.49 | 80(17.7) | 64(7.1) | 4.1 (2.87–5.89)* | 1.7 (0.95–2.97)* |
2.5–4.00 | 231(51.1) | 759(83.9) | 1 | 1 |
>4.00 | 98(21.7) | 75(8.3) | 4.3 (3.07–6.00)* | 0.9 (0.62–1.49) |
Obstetric complications |
||||
None | 81(17.9) | 666(73.7) | 1 | 1 |
Antepartum hemorrhage | 49(10.8) | 20(2.2) | 7.7 (3.56–16.48)* | 12.2 (4.70–31.71)* |
Hypertensive disorder | 42(9.3) | 58(6.4) | 2.3 (1.14–4.51)*** | 3.2 (1.33–7.53)* |
PROM | 20(4.4) | 64(7.1) | 0.9 (0.46–2.08)* | 1.5 (0.61–3.84) |
Obstructed labor | 61(13.5) | 22(2.4) | 8.7 (4.12–18.24)* | 19.8 (7.58–51.90)* |
Cord accidents | 18(4.0) | 6(0.7) | 9.4 (3.18–27.7) | 15.9 (4.28–59.1)* |
Meconium stained | 2(0.5) | 15(1.6) | 0.8 (0.18–3.61) | 1.1 (0.19–6.27) |
Malpresentation | 38(8.4) | 53(5.9) | 2.24(1.11–4.51)* | 1.83(0.68–4.91)* |
Cong malformation | 25(5.5) | 0 | ||
Uterine rupture | 98(21.7) | 0 | ||
Other | 18(4.0) | 0 |
P < 0.0001;
P < = 0.001;
P < 0.05,
PROM= premature rupture of membranes; NA = Not applicable