Echocardiographic data showing cardiac complications
| Time of echo | Assessed (n) | Coronary Z<2 | Coronary 2≤Z<2.5 | Coronary 2.5≤Z<5 | Coronary 5≤Z<10 | Coronary Z≥10 | Pericardial effusion | Valve regurgitation |
| At diagnosis | 523 | 389 | 28 | 59 | 28 | 8 | 25 | 7 |
| >30 days | 49 | 9 | 20 | 12 | 8 | 0 | 0 |
There were 11 children in whom the weights and Z scores were missing and so have not been included in the table.