Patient characteristics
| CLD | RDS | Control | |
|---|---|---|---|
| Number | 12 | 18 | 7 |
| Female:male | 5:7 | 8:10 | 1:6 |
| Birthweight (g) | 780 (630–1070) | 1390 (970–3480) | 2230 (2180–2970) |
| Gestational age (weeks) | 26 (23–28) | 29.5 (27–39) | 35 (31–39) |
| Antenatal dexamethasone | 11 (92%) | 11 (61%) | 1 (14%) |
| Surfactant administration | 12 (100%) | 18 (100%) | 0 (0%) |
| Day 1 maximum peak inspiratory pressure (cm H2O) | 18 (14–36) | 19 (13–22) | 16 (15–20) |
| Day 1 maximum FIO2 | 0.46 (0.24–1.0) | 0.35 (0.25–0.76) | 0.25 (0.21–0.31) |
| Day 1 maximum mean airway pressure (cm H2O) | 8.5 (5–18) | 9 (5–13) | 6 (4–8) |
| Day 1 maximum oxygenation index | 6.4 (2–21.3) | 7.9 (1.2–14.2) | 2.4 (2.2–3.6) |
Median values (range) are shown. CLD = chronic lung disease of prematurity; RDS = respiratory distress syndrome.