Values of pulse oximetry | Cohorts | Comparisons between cohorts | |
---|---|---|---|
NIV | HCO | ||
Procedure for oxygenation and ventilation | Non-invasive ventilation | High-flow nasal cannula oxygen | |
Patients included in the analysis | 154 | 161 | p-value |
Hypoxemia | |||
At the beginning of preoxygenation (mean ± standard deviation) | 95 ± 4% | 94 ± 5% | 0.052 |
The lowest value during the intubation procedure (mean ± standard deviation) | 78 ± 4% | 77 ± 6% | 0.084 |
Numbers of patients with severe hypoxiaa (frequency (percentages)) | 35 (23) | 45 (28) | 0.303 |
At the end of preoxygenation (mean ± standard deviation) | 97 ± 5% | 96 ± 5% | 0.077 |