Table 3.
Parameters of respiratory effort.
| 100% O2 | 30% O2 | p-value | |
|---|---|---|---|
| n = 20 | n = 24 | ||
| Average tidal volumes in first 5 min (mL/kg)a | 4.8 ± 3.8 | 3.8 ± 3.7 | 0.006 |
| Average MIFR in first 5 min (mL/kg/s)a | 12.7 (5.7–18.0) | 7.8 (3.3–13.3) | 0.014 |
| Respiratory rate (breaths/min)b | 33 (14-52) | 26 (11-36) | 0.099 |
| Time of mask ventilation in the first 10 min (s)b | 23.6 (0.0–122.2) | 108.3 (46.4–205.1) | 0.021 |
| Incidence of breaths with tidal volume >4 mL/kga | 50 ± 24 | 35 ± 24 | 0.056 |
| Incidence of recruitment breaths (>8 mL/kg)b | 6 (1-24) | 5 (0–18) | 0.873 |
a
Data are presented as mean ± SD.
b
Median (IQR) for non-parametric data.
MIFR, mean inspiratory flow rate.