| Parameters | 1st group | 2nd group | 3rd group | 4th group |
| Number of examined fetuses | 24 | 24 | 24 | 24 |
| Lung hypoplasia | - | 3 (12.5%) | 5 (20.83%) | - |
| Heart enlargement | - | 4 (16.66%) | 6 (25%) | - |
| Brain diverticulum | - | 6 (25%) | 6 (25%) | - |
| Thymus hypoplasia | - | 5 (20.83%) | 7 (29.16%) | - |