Table 2.
Obstetric conditions of cases and controls who gave birth at public hospitals of Tigray, North Ethiopia.
| Variables | Category | Cases N = 135 (%) | Controls N = 270 (%) | Total N = 405 (%) | COR (95% CI) |
|---|---|---|---|---|---|
| Parity | 1-4 | 95 (70.4) | 235 (87) | 330 (81.5) | 1 |
| ≥5 | 40 (29.6) | 35 (13) | 75 (18.5) | 2.83 (1.69, 4.72) | |
| Antenatal follow-up | No | 22 (16.3) | 13 (4.8) | 35 (8.6) | 3.85 (1.87, 7.91) |
| Yes | 113 (83.7) | 257 (95.2) | 370 (91.4) | 1 | |
| Number of antenatal visits | 1 | 12 (10.7) | 22 (8.3) | 34 (9) | 1.89 (0.88, 4.09) |
| 2-3 | 51 (45.5) | 72 (27.3) | 123 (32.7) | 2.46 (1.52, 3.97) | |
| ≥4 | 49 (43.8) | 170 (64.4) | 219 (58.2) | 1 | |
| Gestational age in weeks | 28-37 | 44 (32.6) | 60 (22.2) | 104 (25.7) | 1 |
| 37-42 | 82 (60.7) | 198 (73.3) | 280 (69.1) | 0.56 (0.35, 0.9) | |
| ≥42 | 9 (6.7) | 12 (4.4) | 21 (5.2) | 1.02 (0.39, 2.64) | |
| Number of pregnancy when ruptured | Singleton | 135 (100) | 263 (97.4) | 398 (98.3) | 1 |
| Multiple | 0 | 7 (2.6) | 7 (1.7) | NA | |
| Previous caesarean delivery | Yes | 26 (19.3) | 7 (2.6) | 33 (8.1) | 8.96 (3.78, 21.26) |
| Interpregnancy interval after CS | Less than 12 months | 16 (11.9) | 2 (0.7) | 18 (4.4) | 4.83 (1.61, 14.45) |
| Above 12 months | 10 (7.4) | 5 (1.9) | 15 (3.7) | 1 | |
| Chorioamnionitis | Yes | 4 (3) | 1 (0.4) | 5 (1.2) | 8.21 (0.91, 74.22) |
| Prehemoglobin level | ≤7 | 15 (11.1) | 19 (7) | 34 (8.4) | 2.68 (1.29, 5.56) |
| 7-11 | 54 (40) | 27 (10) | 81 (20) | 6.79 (3.96, 11.62) | |
| ≥12 | 66 (48.9) | 224 (83) | 290 (71.6) | 1 |
NA = not applicable because of few in numbers. Prehemoglobin level: the level of hemoglobin before uterine rupture.