Table 4.
Parameters of oxygenation.
| 100% O2 | 30% O2 | p-value | |
|---|---|---|---|
| n = 20 | n = 24 | ||
| Average SpO2 in first 5 min (%)b | 85 (64–93) | 58 (46–67) | <0.001 |
| Average heart rate in first 5 min (bpm)a | 134 ± 24 | 120 ± 28 | 0.086 |
| Duration of hypoxemia (<25th percentile of Dawson target ranges) in first 10 min (s)b | 73 (0–189) | 158 (116–184) | 0.018 |
| Duration of hyperoxia in first 10 min (s)b | 99 (24-215) | 79 (15-152) | 0.394 |
| Percentage of time of SpO2 90–95% in first 5 min (%)b | 15 (2-38) | 1 (0–9) | 0.002 |
| Percentage of time of SpO2 90–95% in 5–10 min (%)b | 30 (21-42) | 35 (19-58) | 0.556 |
| Incidence of intubation in delivery roomc | 0/20 (0%) | 2/24 (8%) | 0.493 |
a
Data are presented as mean ± SD for parametric data.
b
Median (IQR) for non-parametric data.
c
n (%) for categorical data.
SpO2, oxygen saturation.