| Positive structural fetal anomalies | Visible fetal abnormalities detected by US | Total | |
| Single abnormality | Multiple abnormalities | ||
| N (%) | N (%) | N (%) | |
| Abdominal wall anomalies | 2 (25) | 6 (75) | 8 (100) |
| Abnormalities of brain | 16 (30.2) | 37 (69.8) | 53 (100) |
| Extremities abnormalities | 7 (11.5) | 54 (88.5) | 61 (100) |
| Face anomalies | 0 (0) | 8 (100) | 8 (100) |
| GIT anomalies | 9 (20) | 36 (80) | 45 (100) |
| Head anomalies | 5 (22.7) | 17 (77.3) | 22 (100) |
| Heart anomalies | 3 (9.1) | 30 (90.9) | 33 (100) |
| Abnormalities of neck and skin | 3 (17.6) | 14 (82.4) | 17 (100) |
| Spine anomalies | 1 (5.3) | 18 (94.7) | 19 (100) |
| Thorax anomalies | 2 (3.7) | 52 (96.3) | 54 (100) |
| Urinary tract abnormalities | 22 (39.3) | 34 (60.7) | 56 (100) |
| Abnormal genitalia | 1 (33.3) | 2 (66.7) | 3 (100) |
| Any positive visible fetal abnormality detected by US | 71 (39.9) | 107 (60.1) | 178 (100) |
| Total | 71 (39.9) | 107 (60.1) | 178 (100) |