Variables | Adjusted odds ratio (95% confidence interval) | p value |
---|---|---|
In the overall population | ||
Factors associated with intubation a | ||
Expired tidal volume after 1 h under noninvasive ventilation, per 100 mL increase | 1.27 (1.03–1.58) | 0.03 |
PaO2/FiO2 after 1 h under noninvasive ventilation, per mmHg drop | 1.006 (1.002–1.010) | 0.003 |
Factors associated with ICU mortality b | ||
Immunodepression | 2.64 (1.24–5.67) | 0.01 |
Expired tidal volume after 1 h of noninvasive ventilation, per 100 mL increase | 1.37 (1.09–1.74) | 0.008 |
In the propensity score-matched cohort | ||
Factors associated with intubation c | ||
Heart rate, per beat per min drop | 1.02 (1.001–1.01) | 0.048 |
PaO2/FiO2 after 1 h of noninvasive ventilation, per mmHg drop | 1.007 (1.002–1.011) | 0.007 |
Factors associated with ICU mortality d | ||
Immunosuppression | 2.56 (1.54–6.57) | 0.04 |
Heart rate, per beat per min drop | 1.03 (1.01–1.05) | 0.01 |