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Figure 1 Kaplan-Meier estimates of the overall survival and repeat revascularization rate of type 2 diabetic patients following coronary artery bypass graft surgery (CABG), according to the presence or absence of diabetic retinopathy (DR). (A) The overall survival curves; (B) subsequent revascularization curves. DR = diabetic retinopathy. The p values were calculated by the log-rank test. I bars indicate 95% confidence intervals.