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Annals of Intensive Care
Fig. 2 | Annals of Intensive Care

Fig. 2

From: Physiological effects of high-intensity versus low-intensity noninvasive positive pressure ventilation in patients with acute exacerbation of chronic obstructive pulmonary disease: a randomised controlled trial

Fig. 2

a IPAP, b VT, and c VT/PBW from baseline through 72 h after randomisation. Values are individuals, medians, and interquartile ranges with whiskers indicating minimum and maximum for IPAP and means and standard errors for VT and VT/PBW. *p < 0.05 between the two groups at the same time. NPPV noninvasive positive pressure ventilation, IPAP inspiratory positive airway pressure, VT tidal volume, PBW predicted body weight

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