| Outcome | Maternal age | Adjusted OR (95% CI) | P | |
| Teenager n = 44 (%) | Adult (n = 281) | |||
| Onset of labour |
|
|
|
|
| Induced | 1 (2.27) | 18 (6.4) | 0.000 | 0.998 |
| Spontaneous | 43 (97.7) | 223 (79.4) | 0.000 | 0.997 |
| None | 0 (0.0) | 40 (14.4) | 1 |
|
| Mode of delivery |
|
|
|
|
| Normal VD | 33 (75%) | 207 (73.6) | 1.884 (0.57 - 6.22) | 0.299 |
| Assisted VD | 7 (15.9) | 13 (4.6.) | 0.202 (0.27 - 1.50) | 0.118 |
| Caesarean delivery | 4 (9.0) | 61 (21.7) | 1 |
|
| Hypertensive disorder in pregnancy Pre-eclampsia | 0 (0.0) | 5 (1.8) | 0.000 | 0.999 |
| None | 44 (100) | 276 (98.2) | 1 |
|
| Premature rupture of membranes |
|
|
|
|
| Yes | 6 (13.6) | 62 (22.1) | 2.614 (0.98 - 7.00) | 0.056 |
| No | 38 (86.4) | 219 (77.9) | 1 |
|
| Perineal tear |
|
|
|
|
| Yes | 17 (38.6) | 55 (19.5) | 0.485 (0.24 - 0.99) | 0.049 |
| No | 27 (10.7) | 226 (89.3) | 1 |
|
| Episiotomy |
|
|
|
|
| Yes | 6 (13.6) | 55 (19.5) | 1.066 (0.22 - 5.13) | 0.937 |
| No | 38 (86.4) | 226 (89.3) | 1 |
|
| Postpartum haemorrhage |
|
|
|
|
| Yes | 0 (0.0) | 3 (1.1) | 0.000 | 0.999 |
| No | 44 (100) | 278 (98.9) | 1 |
|
| Placenta Previa |
|
|
|
|
| Yes | 0 (0.0) | 3 (1.1) | 0.000 | 0.999 |
| No | 44 (13.7) | 278 (98.9) | 1 |
|
| Placenta abruption |
|
|
|
|
| Yes | 0 (0.0) | 3 (1.1) | 0.000 | 0.999 |
| No | 44 (100) | 278 (98.9) | 1 |
|