Fig. 7From: Hemolysis and cardiopulmonary bypass: meta-analysis and systematic review of contributing factorsForest plot of published studies comparing plasma free hemoglobin (PFHb) of CPB alternatives using random effect analysis. Subgroup analyses were done for mini extracorporeal circulation (MiniECC) and off-pump coronary artery bypass (OPCAB) using random effects analysis. Data presented as Mean Difference (MD) with 95% Confidence Interval (CI)Back to article page