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Fig. 2 | Critical Care

Fig. 2

From: Noninvasive ventilation with helmet versus control strategy in patients with acute respiratory failure: a systematic review and meta-analysis of controlled studies

Fig. 2

Effect of NIV with a helmet on primary outcomes and length of ICU stay. The helmet NIV group represents patients receiving NIV with a helmet, the control group represent patients receiving NIV with a mask or oxygen therapy with a mask. Vertical solid line null effect, boxes and horizontal lines outcome in the corresponding study and 95 % CI, filled rhombic boxes overall effect size. a Effect of NIV with a helmet on hospital mortality; b effect of NIV with a helmet on intubation rate; c effect of NIV with a helmet on complications; d effect of NIV with a helmet on length of ICU stay. CI confidence interval, ICU intensive care unit, IV inverse variance method, NIV noninvasive ventilation, M-H Mantel-Haenszel method, SD standard deviation

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Critical Care

ISSN: 1364-8535