Gestational age (weeks) | 29.4 (27.3–31.6) | 27.9 (26.1–29.5)** |
Birth weight (g) | 1235 (1045–1360) | 1035 (777–1200)** |
Sex (male/female) | 23 (39%): 36 (61%) | 49 (63%): 29 (37%)* |
CRIB score | 1 (1–2) | 4 (2–7)** |
Mode of delivery (vaginal:caesarean section) | 23 (39%):36 (61%) | 35 (45%):43 (55%) |
Apgar scores |
1 min | 7 (6–8) | 6 (4–7)* |
5 min | 9 (8–9) | 8 (7–9)* |
Inborn/outborn | 57 (97%):2 (3%) | 76 (97%):2 (3%) |
Membrane ruptured > 24 h | 13 (22%) | 15 (19%) |
Maternal pre-eclampsia | 9 (15%) | 9 (12%) |
Antepartum haemorrhage | 7 (12%) | 15 (19%) |
Doses of antenatal corticosteroids | 2 (1–4) | 1 (1–3)* |
Time between the last dose of antenatal corticosteroids and delivery (h) | 19 (5–51) | 19 (4–52) |
Duration of mechanical ventilation (days) | 10 (4–29) | 31 (16–44)** |
Duration of O2 dependency (days) | 9 (1–26) | 18 (11–35)** |
Duration of hospital stay (days) | 86 (65–107) | 92 (70–124) |
Mean arterial blood pressure (mm Hg) |
Lowest (first 14 days) | 28 (31–34) | 23 (21–26)** |
Day 7 | 48 (42–54) | 38 (33–45)** |
Day 14 | 45 (42–51) | 43 (38–49) |
Volume expander (ml/kg) | 33 (14–68) | 76 (50–110)** |
Age started on inotropes (h) | – | 7 (4–12) |
Duration of inotrope support (h) | – | 112 (65–177) |
Dopamine |
Maximum dose (μg/kg/min) | – | 20 (10–30) |
Total cumulative dose (μg/kg) | – | 75990 (31688–138325) |