| Type of delivery | Singleton (N = 367) | Twins (N = 16) | |
| n (%) | |||
| Pregnancy outcome | Preterm baby | 25 (6.8%) | 5 (31.3%) |
| Full-term baby | 342 (93.2%) | 11 (68.8%) | |
| Abortion | 0 (0.0%) | 0 (0.0%) | |
|
| p = 0.005 |
| |