Gestational age (wk) | 27 (2) [23–30]* | 29 (2) [25–35] |
Birth weight (g) | 954 (201) [570–1300]† | 1127 (236) [605–1490] |
Birth length (cm) | 35 (3) [30–40]† | 37 (3) [30–41] |
Head circumference at birth (cm) | 25 (2) [21–28]* | 27 (2) [21–31] |
Male | 19 (61%) | 21 (63%) |
SGA | 5 (16%)‡ | 14 (42%) |
Prenatal corticosteroids | 10 (32%) | 13 (39%) |
Postnatal corticosteroids | 17 (55%)* | 4 (12%) |
Surfactant | 14 (45%) | 8 (24%) |
Ventilator therapy | 29 (94%)† | 22 (67%) |
Duration (days), median (range) | 26 (0–89)† | 2 (0–44) |
O2 supplementation | 31 (100%) | 31 (94%) |
Duration (days), median (range) | 61 (29–127)† | 23 (0–86) |
Corrected gestational age at O2 withdrawal (wk) | 36 (4) [31–45]* | 32 (2) [28–38] |
IVH (grade III–IV) | 8 (26%)‡ | 2 (6%) |