Table 1.
Inborn (n=293) | Outborn (n=293) | P value | |
---|---|---|---|
EGA, mean (SD), weeks | 28.6 (2.9) | 28.5 (2.9) | 0.82 |
Birth weight, mean (SD), grams | 1280 (451) | 1286 (463) | 0.89 |
Male sex, n (%) | 154 (53) | 163 (56) | 0.51 |
SGAa, n (%) | 26 (9) | 27 (9) | 1.00 |
Race, n (%) | <0.01* | ||
Antenatal steroids, n (%) | 245 (84) | 182 (62) | <0.01* |
Adequate prenatal careb, n (%) | 274 (94) | 279 (95) | 0.48 |
Caesarian section, n (%) | 224 (76) | 191 (65) | <0.01* |
Chorioamnionitis, n (%) | 74 (25) | 62 (21) | 0.28 |
Advanced resuscitation, n (%) | 293 (100) | 177 (60) | <0.01* |
Apgar score, median (range) | |||
Surfactant in delivery room, n (%) | 246 (84) | 127 (43) | <0.01* |
Inotrope use, n (%) | 78 (27) | 96 (33) | 0.12 |
Cumulative length of invasive ventilatory support, n (%) | 0.04* | ||
Grade III or IV IVH, n (%) | 34 (11) | 52 (17) | 0.04* |
SGA defined at BW < 10th centile for GA;
defined as >4 visits
Denotes significance at p< 0.05.