Table 1.
Baseline characteristics and antenatal factors of the two groups
| Control (n = 162) | Calsurf treatment (n = 166) | Univariate analysis (P) | |
|---|---|---|---|
| Gestational age (weeks), mean (SD) | 37.86 (2.6) | 37.34 (2.1) | 0.07 |
| Birth weight (g), mean (SD) | 3090 (503) | 2985 (579) | 0.08 |
| Male, N (%) | 101 (62) | 108 (65) | 0.61 |
| Cesarean section, N (%) | 114 (70) | 124 (75) | 0.38 |
| Apgar score at 5 min, mean (SD) | 8 (1.6) | 8 (1.3) | 0.12 |
| Antenatal steroid, N (%) | 13 (8) | 23 (14) | 0.09 |
| Pregnancy-induced maternal disease, N (%) | 40 (25) | 45 (27) | 0.91 |
| PPROM, N (%) | 25 (15) | 30 (18) | 0.71 |
| Postnatal hours of NARDS recruitment, mean (SD) | 42.3 (50.5) | 44.7 (52.1) | 0.86 |
| OI at study entry | 15.5 (11.7) | 14.9 (11.5) | 0.71 |
| Small for gestational age, N (%) | 5 (3.1) | 7 (4.2) | 0.45 |
PPRPM, prolonged premature rupture of membrane. Values are number (percentage) unless otherwise indicated. P > 0.05 for all comparisons