Figure 7. Subgroup analysis according to the study design and support of CPB during CABG. The study design and support of CPB did not affect the results of preoperative aspirin use for re-operation for bleeding, all-cause mortality and MI.CABG = coronary artery bypass graft surgery; CI = confidence interval; CPB = cardiopulmonary bypass; MI = myocardial infarction; OR = odds ratio; Preop = preoperative; RCT = randomized controlled trial. Korean Circ J. 2019 Jun;49(6):498-510. https://doi.org/10.4070/kcj.2018.0296