Patient characteristics
| CLD | RDS | Control | |||||
|---|---|---|---|---|---|---|---|
| Except where indicated otherwise, median values (range) are shown. | CLD, Chronic lung disease of prematurity; RDS, respiratory distress syndrome. | ||||||
| Number | 16 | 18 | 9 | ||||
| Male:female | 9:7 | 11:7 | 6:3 | ||||
| Birth weight (g) | 765 (630–1230) | 1415 (430–4160) | 2110 (900–3720) | ||||
| Gestational age (weeks) | 26.5 (23–29) | 31 (23–39) | 32 (26–41) | ||||
| Antenatal dexamethasone | 15 (94%) | 8 (44%) | 3 (33%) | ||||
| Surfactant administration | 15 (94%) | 15 (83%) | 1 (11%) | ||||
| Day 1 maximum peak inspiratory pressure (cm H2O) | 17 (14–22) | 19 (14–29) | 15 (14–20) | ||||
| Day 1 maximum Fio2 | 0.40 (0.24–0.90) | 0.41 (0.21–1.00) | 0.24 (0.21–0.28) | ||||
| Day 1 maximum mean airway pressure (cm H2O) | 7.5 (5–21) | 9.5 (4.4–29) | 5.3 (4–7) | ||||
| Day 1 maximum oxygenation index | 5.3 (2.1–30.5) | 5.9 (0.9–94.3) | 1.8 (1.3–3.0) | ||||