| RSV(n = 25) | Other respiratory(n = 50) | Non-respiratory(n = 72) | |
| Gestational age (weeks) | 26 (24–31) | 27 (23–31) | 27 (25–31) |
| Birth weight (g) | 820 (640–1960) | 1013 (630–1696) | 937 (510–1566) |
| Maternal steroids (%) | 77 | 87 | 84 |
| Surfactant (%) | 88 | 86 | 79 |
| IPPV (%) | 96 | 98 | 94 |
| CPAP (%) | 67 | 47 | 66 |
| HFOV (%) | 4 | 7 | 0 |
| Nitric oxide (%) | 4 | 8 | 1 |
| PDA (%) | 24 | 38 | 32 |
| Air leak (%) | 8 | 22 | 9 |
| Postnatal dexamethasone (%) | 38 | 44 | 33 |
| Duration of neonatal admission (days) | 85 (16–360) | 78 (10–464) | 64 (2–827) |
| Home oxygen (%) | 40 | 50 | 32 |
Data are presented as median (range) or percentage.
CPAP, continuous positive airway pressure; HFOV, high frequency oscillation ventilation; IPPV, intermittent positive pressure ventilation; PDA, patent ductus arteriosus; RSV, respiratory syncytial virus.