Fig. 3From: The comparison of albumin and 6% hydroxyethyl starches (130/0.4) in cardiac surgery: a meta-analysis of randomized controlled clinical trialsThe frequency of transfusions. The numbers of Cho et al. and Choi et al., included the number of patients that need a transfusion in the first 24 h after the cardiac surgery. HA human albumin, HES hydroxyethyl starch, CI confidence interval; Fixed-effects models were applied to calculate a common effectBack to article page