Fig. 1From: Easily identified at-risk patients for extubation failure may benefit from noninvasive ventilation: a prospective before-after studyFlow-chart of the study. All in all, 168 patients in the control cohort and 310 in the noninvasive ventilation (NIV) cohort experienced planned extubation. Patients who were extubated after less than 24 h of mechanical ventilation (MV) or with a do-not-intubate order were excluded. Among all patients who experienced planned extubation, the proportion of patients at high-risk for extubation failure was similar in the two cohorts: 49 % (83/168) in the control cohort and 48 % (150/310) in the NIV cohort, p = 0.83Back to article page