Table 2.
Standard oxygen N = 306 | Helmet CPAP N = 306 | P value | |
---|---|---|---|
PaO2/FiO2 ratio, mmHg | 103 [79–176] | 202 [146–284] | < 0.001* |
O2 saturation, % | 95 [91–97] | 98 [96–99] | < 0.001* |
PaCO2, mmHg | 33 [30–36] | 33 [30.5–36] | 0.011* |
Resp rate, BPM | 28 [22–32] | 24 [20–29] | < 0.001* |
BPM: breaths per minute; PEEP: positive end expiratory pressure; CPAP: continuous positive airway pressure; ARDS: acute respiratory distress syndrome
*Indicates persistence of statistically significant differences after Bonferroni correction for multiple comparisons (p < 0.012)