Fig. 3From: Anion gap as a prognostic tool for risk stratification in critically ill patients – a systematic review and meta-analysisForest plot of odds ratios (ORs) for observed AG predicting mortality. Forest plot of a fixed effects meta-analysis of ORs derived by univariate logistic regression for the observed AG predicting mortality; I2 = 0 %. In view of the high heterogeneity in meta-analyses of other effect measures a pooled effect estimate is not shownBack to article page