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Table 4 Predictors of successful discontinuation of mechanical ventilation for patients with COVID-19 ARDS

From: Effect of prone positioning on oxygenation and static respiratory system compliance in COVID-19 ARDS vs. non-COVID 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

  1. FiO2 fraction of inspired oxygen, PaO2 partial pressure of oxygen, SOFA sequential organ failure assessment
  2. aSubdistribution hazard ratios are described with their 95% confidence intervals