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Demographics of infant participants
| Variable | Number of Participants (%) | Average Age at Study Entry (range, SD) | % Living at Study Exit |
|---|---|---|---|
| Infant Diagnosis | |||
| Complex congenital heart disease | 5 (30%) | 22 days (1–61, 27) | 40% |
| Genetic/metabolic disease/HSCT | 7 (40%) | 11 months (3–21, 6) | 71% |
| Extreme prematurity | 5 (30%) | 0 days (0–2, 1) | 40% |
| Total | 17a | 148 days | 53% |
aOne case included twins
