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Meta-analysis showing the RR of length of hospitalization, length of ICU stay, intubation time, need for red blood transfusion, the incidence of transient atrial fibrillation (AF), and total in-hospital costs. Random-effects models were used for meta-analysis. CI, confidence interval; HCR, hybrid coronary revascularization; OPCABG, off-pump coronary artery bypass grafting; RR, relative risk; SMD, standardized mean difference.
