Fig. 2From: Anion gap as a prognostic tool for risk stratification in critically ill patients – a systematic review and meta-analysisForest plot of area under the ROC curves (AUCs) for observed AG predicting mortality. Forest plot of a random effects meta-analysis of AUCs for the observed AG predicting mortality; I2 = 99 %. In view of the high heterogeneity a pooled effect estimate is not shownBack to article page