Fig. 3From: Noninvasive ventilation for severely acidotic patients in respiratory intermediate care unitsComparison of the hospitalization (Panel a) and RICU stay (Panel b) durations between the patients with severe and non-severe acidosis. Data are presented for the total population and for the sub-groups with or without a DNI order. Abbreviations: RICU = respiratory intermediate care unit, ACPE = acute cardiogenic pulmonary edema, OHS = obesity hypoventilation syndrome, and DNI = do not intubateBack to article page