| Risk factors | Actual (N) | Percentage (%) |
| Not recovered | 481 | 83.9 |
| Twins | 39 | 6.8 |
| Macrosomia | 22 | 3.8 |
| Polyhydramnios | 20 | 3.5 |
| Urogenital infections | 13 | 2.3 |
| Total | 575 | 100 |