Figure 4
From: The impact of hydroxyethyl starches in cardiac surgery: a meta-analysis
Transfusion requirements after tetrastarch compared to albumin, gelatin or crystalloids. The risk ratio was used as effect size (transfusion risk for the hydroxyethyl starch groups divided by transfusion risk for the albumin (A), gelatin (B) and crystalloid (C) groups). Fixed-effects models were applied to calculate a common effect estimate using the Mantel-Haenszel (M-H) approach. CI, confidence interval.