| Variable | Summary statistics |
| Age/year Mean ± SD Median (range) |
6.18 ± 4.11 6 (0.08:15) |
| Gender Female Male |
34 (42.5%) 46 (57.5%) |
| Family history of CHD Negative Positive |
74 (92.5%) 6 (7.5%) |
| Indication | Number (%) |
| Palpitation | 22 (27.5) |
| Syncope | 22 (27.5) |
| Abnormal examination | 17 (21.25) |
| Chest pain | 13 (16.25) |
| Cardiomyopathy | 6 (7.5) |