Table 4.
Predictors of successful discontinuation of mechanical ventilation for patients with COVID-19 ARDS
| Predictors (N = 23) | Subdistribution hazard ratioa | P value |
|---|---|---|
| Age (per 1 year) | 1.18 (0.99–1.40) | 0.063 |
| Female sex (vs. Male sex) | 13.92 (1.17–165.15) | 0.037 |
| SOFA score (per 1 point) | 0.68 (0.49–0.95) | 0.022 |
| Charlson comorbidity index (per 1 point) | 0.48 (0.17–1.39) | 0.176 |
| Baseline PaO2/FiO2 ratio (per 10 mmHg) | 0.73 (0.53–1.00) | 0.054 |
| Baseline static respiratory system compliance (per 1 mL/cmH2O) | 1.40 (1.10–1.79) | 0.006 |
| Increase in PaO2/FiO2 ratio after the first prone positioning session (per 10 mmHg) | 1.19 (1.08–1.30) | < 0.001 |
| Increase in static respiratory system compliance after the first prone positioning session (per 1 mL/cmH2O) | 1.57 (1.29–1.91) | < 0.001 |
FiO2 fraction of inspired oxygen, PaO2 partial pressure of oxygen, SOFA sequential organ failure assessment
aSubdistribution hazard ratios are described with their 95% confidence intervals