Type of congenital defect | Number | % |
No structural abnormality | 100 | 72.5 |
Neural tube defect | 18 | 13.0 |
Multiple defects | 5 | 3.6 |
Others | 5 | 3.6 |
Cardiac defect | 4 | 2.9 |
Renal defect | 3 | 2.2 |
Musculoskeletal defect | 2 | 1.4 |
Abdominal wall defect | 1 | 0.8 |