Table 1.
Basic Clinical and Obstetric Characteristics of the Population of Very Preterm Infants (<32 Weeks of Gestation) Recruited in Two Randomized, Controlled, and Blinded Studies
| Parameter | LowOx (n=133) | HiOx (120) | p |
|---|---|---|---|
| Female sex, n (%) | 69 (51.8) | 58 (48.3) | NS |
| GA, week, median (IQR) | 28 (24, 32) | 27 (23, 31) | NS |
| BW, g, median (IQR) | 944 (720, 1280) | 1040 (755, 1368) | NS |
| Umbilical cord pH, median (IQR) | 7.29 (7.25, 7.33) | 7.28 (7.23, 7.31) | NS |
| Full antenatal steroids, n (%) | 133 (100) | 120 (100) | NS |
| Vaginal/Cesarean delivery, n | 43/90 | 44/76 | NS |
| Chorioamnionitis, n (%) | 25 (18.8) | 22 (18.3) | NS |
Patients were randomly assigned to an initial FiO2=30% (LowOx) or 60%–65% (HiOx) Data retrieved from Saugstad et al. (5).
BW, birth weight (g); GA, gestational age (weeks); IQR, interquartile range; NS, nonsignificant (α=0.05).