| Aetiology | Level | Age-Group | Chi-square | p-value | ||
| <20 | 21 - 30 | >30 | ||||
| Ectopic | NO | 20 (66.7) | 128 (66.3) | 52 (46.4) | 12.32 | 0.02 |
| pregnancy | YES | 10 (33.3) | 65 (33.7) | 60 (53.6) | ||
| Miscarrriage | NO | 15 (50.0) | 112 (58.0) | 79 (70.5) | 6.52 | 0.038 |
| YES | 15 (50.0) | 81 (42.0) | 33 (29.5) | |||
| UTI | NO | 28 (93.3) | 171 (88.6) | 105 (93.8) | 2.5 | 0.286 |
| YES | 2 (6.7) | 22 (11.4) | 7 (6.3) | |||
| Abruptio placentae | NO | 30 (100.0) | 189 (97.9) | 110 (98.2) | 0.63 | 0.728 |
| YES | 0 (0.0) | 4 (2.1) | 2 (1.8) | |||
| Uterine rupture | NO | 30 (100.0) | 190 (98.4) | 112 (100) | 2.22 | 0.328 |
| YES | 0 (0.0) | 3 (1.6) | 0 (0.0) | |||
| Acute | NO | 29 (96.7) | 190 (98.4) | 112 (100.0) | 2.73 | 0.255 |
| Appendicitis | YES | 1 (3.3) | 3 (1.6) | 0 (0.0) | ||