| 
      S= Significant; NS= Not significant
        | Variable | Number (%) | P-value | OR | CI |  
        | Case
            n = 46 | Control
            n = 230 |  
        | Parity |  |  |  |  |  |  
        | Primigravidae    (o) | 3 (6.5) | 79 (34.4) | <0.05 | 0.13 | 0.05-0.47    (NS) |  
        | Multigravida    (1-4) | 18 (39.1) | 122(53.0) | >0.05 | 0.57 | 0.28-1.14 (NS) |  
        | Grandmultiparae    (≥5) | 25(54.4) | 29(12.6) | <0.05 | 8.25 | 3.88-17.64(S) |  
        | Prolonged obstructed labor | 16(34.8) | 19(8.3) | <0.05 | 5.92 | 2.57-13.66(S) |  
        | Previous caesarean section | 7(15.2) | 42(18.3) | >0.05 | 0.80 | 0.30-2.04(NS) |  
        | Use of oxytocics | 3(1.3) | 50(21.7) | <0.05 | 0.25 | 0.06-0.89(NS) |  |