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Prenatal trace back of confirmed CHD cases excluding PDA and ASD cases (n = 108)
| Conditions | Case counts | Percentage (%) |
|---|---|---|
| Prenatal identification of CHD | ||
| VSD | 35 | 32.41 |
| COA | 1 | 0.93 |
| TOF | 1 | 0.93 |
| Prenatal identification of non-CHD | 51 | 47.22 |
| Unclear ultrasound image | 3 | 2.78 |
| No prenatal screening | 14 | 12.96 |
| Lost to trace back | 3 | 2.78 |
