Figure 3
From: Arterial hyperoxia and mortality in critically ill patients: a systematic review and meta-analysis
Forest plot showing individual and pooled odds ratios for mortality of studies on patients resuscitated from cardiac arrest. Odds ratios >1 (right side of the plot) indicate an association between hyperoxia and higher mortality. Heterogeneity was Q (4) = 12.4, P = 0.015; I 2 = 67.73. The size of the boxes is inversely proportional to the size of the result study variance; more precise studies have larger boxes. ES, effect size; CI, confidence interval; W, weight; Sig., P value.