| Type | Cases | Percentage | Controls | Percentage |
| Spontaneous vertex delivery | 179 | 65.8 | 438 | 80.5 |
| Assisted breech delivery | 17 | 6.3 | 17 | 3.1 |
| Twins delivery | 61 | 22.4 | 61 | 11.2 |
| Forceps delivery | 4 | 1.5 | 9 | 1.7 |
| Vacuum extraction | 8 | 2.9 | 19 | 3.5 |
| Destructive operation | 3 | 1.1 | - | - |