Clinical outcome
| FiO2 | 30% (n=99) | 65% (n=95) |
|---|---|---|
| Mortality (%) | 6.1 | 10.5 |
| BPD (%) | 23 | 15 |
| Survival without BPD (%) | 72 | 75 |
| Intraventricular hemorrhage ≥stage 2 (%) | 8.1 | 10.5 |
| Retinopathy of prematurity ≥stage 2 (%) | 6.1 | 5.3 |
| Necrotizing enterocolitis ≥stage 2 (%) | 4.0 | 3.2 |