| Study population, n
|
13 |
10 |
| Gestational age, weeks ± SD |
24.8 ± 1.7 |
23.5 ± 0.7 |
| Birth weight, grams ± SD * |
686 ± 140 |
564 ± 93 |
| Male sex, no. (%) |
4 (31) |
4 (40) |
| Race |
| Black, no. (%) |
10 (77) |
7 (70) |
| White, no. (%) |
3 (23) |
3 (30) |
| Antenatal corticosteroids, no. (%) |
12 (92) |
10 (100) |
| Chorioamnionitis, no. (%) |
6 (46) |
4 (40) |
| Rupture of membranes > 18 hours, no. (%) |
3 (23) |
1 (10) |
| Cesarean section, no. (%) |
8 (62) |
7 (70) |
| Pre-eclampsia, no. (%) |
7 (54) |
6 (60) |
| Intrauterine growth restriction, no. (%) |
4 (31) |
6 (60) |
| Intubation in delivery room, no. (%) |
5 (38) |
5 (50) |
| Respiratory distress syndrome, no. (%) |
12 (92) |
10 (100) |
| Treatment with surfactant, no. (%) |
11 (85) |
10 (100) |
| High frequency ventilation, no. (%) |
2 (15) |
5 (50) |
| Ventilator days, mean ± SD * |
13 ± 18 |
58 ± 43 |
| CPAP days, mean ± SD |
14 ± 14 |
29 ± 23 |
| Oxygen days, mean ± SD * |
51 ± 39 |
145 ± 26 |
| Died, no. (%) |
0 (0) |
0 (0) |
| Pulmonary hemorrhage, no. (%) |
2 (15) |
3 (30) |
| Symptomatic patent ductus arteriosus, no. (%) |
6 (46) |
3 (30) |
| Sepsis, no. (%) |
4 (31) |
4 (40) |
| Intracranial hemorrhage ≥ grade 3, no. (%) |
2 (15) |
0 (0) |
| Retinopathy of prematurity ≥ stage 3, no. (%) |
0 (0) |
2 (20) |
| Necrotizing enterocolitis ≥ stage 2, no. (%) |
1 (8) |
4 (40) |
