Background characteristics of perinatal period, surgery and length of stay for children who had both neuroimaging and neurodevelopmental follow-up.
| Demographic | Included patients (n=83) |
| Male gender n (%) | 49 (59%) |
| Left-sided hernia n (%) | 70 (84%) |
| Mean gestational age at birth±SD (weeks) | 38.0±2.5 |
| Mean birth weight±SD (g) | 3009±677 |
| Median age of surgery (days) | 4 (IQR 2–6) |
| Patch repair n (%) | 18 (22%) |
| Extracorporeal membrane oxygenation n (%) | 1 (1%) |
| Median ventilation via endotracheal tube (days) | 10 (IQR 6–19) |
| Median supplemental oxygen time (days) | 13 (IQR 4–27) |
| Median hospital length of stay (days) | 29 (IQR 20–43) |
| Risk of death category* | |
| Low risk (<10%) | 27 (33%) |
| Intermediate risk (25%) | 33 (40%) |
| High risk (50%) | 23 (28%) |
*Risk of death score based on combination of birth weight <1500 g, 5 min Apgar <7, severe pulmonary hypertension on echo, major cardiac anomaly, chromosomal anomaly.25