| Nature of abnormalities | Frequency | Percentage |
| Musculo-skeletal | 36 | 36.4% |
| Digestive | 22 | 22.2% |
| Poly malformation | 18 | 18.2% |
| Neural tube | 11 | 11.1% |
| Heart | 5 | 5.1% |
| Kidney | 4 | 4.0% |
| Genital | 2 | 2.0% |
| Respiratory | 1 | 1.0% |
| Total | 99 | 100% |