Article Figures & Data
Figures
- Fig. 1.
Flow chart. NIV = noninvasive ventilation.
- Fig. 2.
SD of tidal volume (A) and peak inspiratory pressure (B) during the first 6 h after randomization. Points denote individual values and horizontal lines denote means. In both panels, P < .001 between the pressure-limited noninvasive ventilation group (PL-NIV) and volume-targeted noninvasive ventilation group (VT-NIV).
- Fig. 3.
Daily use of noninvasive ventilation during the first 5 d after randomization. Values are given as means, and error bars denote SD. PL-NIV = pressure-limited noninvasive ventilation; VT-NIV = volume-targeted noninvasive ventilation.
- Fig. 4.
Decrement of PaCO2 from baseline to 6 h after randomization (A) and from baseline to 2 h after randomization (B). Points denote individual values, and solid horizontal lines denote means. PL-NIV = pressure-limited noninvasive ventilation; VT-NIV = volume-targeted noninvasive ventilation.
- Fig. 5.
Scale for accessory muscle use (A), breathing frequency (B), SpO2 (C), arterial pH (D), PaCO2 (E), and PaO2/FIO2 (F) at baseline (0 h) and after randomization in subjects receiving pressure-limited noninvasive ventilation (PL-NIV) and volume-targeted noninvasive ventilation (VT-NIV). Values are given as mean ± SD. *, P < .05 compared with baseline within the same group.
- Fig. 6.
Kaplan-Meier plot of the cumulative incidence of intubation (A), the cumulative probability of remaining on noninvasive ventilation (B), and the cumulative probability of survival (C) within 28 d after randomization. PL-NIV = pressure-limited noninvasive ventilation; VT-NIV = volume-targeted noninvasive ventilation. P values are by log-rank test.
Tables
