| Characteristics | Categories | Cases (n = 174) | Control (n = 259) | Incidence | Odd Ratio (95% CI) | P-value |
| Parity | Multiparous | 73 (41.95%) | 169 (65.25%) | 16.86% | 0.385 (0.259 - 0.571) | 0.000 |
| Primiparous | 101 (58.05%) | 90 (34.78%) | 23.33% |
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| Ante Natal Care | Yes | 34 (19.54%) | 147 (56.76%) | 7.85% | 0.185 (0.118 - 0.290) | 0.000 |
| No | 140 (80.46%) | 112 (43.24%) | 32.33% |
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| Mode of Delivery | Spontaneous | 78 (44.83%) | 137 (52.90%) | 18.01% | 1.382 (0.940 - 2.033) | 0.100 |
| Vag. delivery | ||||||
| Caesarean section | 76 (43.68%) | 168 (64.86%) | 17.55% |
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| Duration of Labour | Normal | 76 (43.68%) | 168 (64.86%) | 17.55% | 0.420 (0.283 - 0.623) | 0.000 |
| prolonged | 98 (56.32% | 97 (35.14%) | 22.63% |
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| Premature rupture of membrane | Yes | 108 (62.07%) | 109 (42.08%) | 24.94% | 2.252 (1.520 - 3.337) | 0.000 |
| No | 66 (37.93%) | 150 (57.92%) | 15.24% |
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| Onset of Labour | Spontaneous | 75 (43.10%) | 172 (66.41%) | 17.32% | 0.383 (0.258 - 0.569) | 0.000 |
| Induced | 99 (56.90%) | 87 (33.59%) | 22.86% |
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| Hypertension in Pregnancy | yes | 91 (52.30%) | 97 (37.45%) | 21.02% | 1.831 (1.240 - 2.703) | 0.002 |
| No | 83 (47.70%) | 162 (62.55%) |
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| Use of Traditional Medicine | Yes | 95 (54.60%) | 119 (45.95%) | 21.94% | 1.415 (0.962 - 2.081) | 0.078 |
| No | 79 (45.40%) | 140 (54.05%) | 18.24% |
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