Additional file 1: of High-flow nasal cannula oxygen therapy decreases postextubation neuroventilatory drive and work of breathing in patients with chronic obstructive pulmonary disease

Independent sample t tests. Comparison between patients who required reintubation and patients who were successfully extubated in terms of age, reason for ICU admission (COPD exacerbation versus other causes), days of mechanical ventilation, COPD severity (based on FEV1, FEV1/FVC ratio, GOLD stage, SAPS II on admission, and SOFA score). (DOCX 26 kb)