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Table 2 Respiratory parameters collected with standard oxygen therapy and shortly after start of helmet CPAP

From: Helmet CPAP to treat hypoxic pneumonia outside the ICU: an observational study during the COVID-19 outbreak

 

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*

  1. BPM: breaths per minute; PEEP: positive end expiratory pressure; CPAP: continuous positive airway pressure; ARDS: acute respiratory distress syndrome
  2. *Indicates persistence of statistically significant differences after Bonferroni correction for multiple comparisons (p < 0.012)
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Critical Care

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