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Fig. 2 | Critical Care

Fig. 2

From: Non-invasive ventilation versus high-flow nasal oxygen for postextubation respiratory failure in ICU: a post-hoc analysis of a randomized clinical trial

Fig. 2

Kaplan–Meier analysis of time from the onset of post-extubation respiratory failure to death according to oxygenation strategy in the subgroup of patients with hypercapnia (PaCO2 > 45 mm Hg). Among the 46 patients with hypercapnia at the onset of respiratory failure mortality at day 28 was 3% (1 out of 33 patients) with NIV and 31% (4 out of 13 patients) with high-flow nasal oxygen alone (difference, − 28% [95% CI, − 54 to − 6]; p = 0.006 using log-rank test)

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