1-year cumulative incidence of MACE by operator volume overall (A), in patients presenting with STEMI (B), UA/NSTEMI (C), and stable angina (D), and those undergoing PCI of chronic total occlusion (E), bifurcation (F), and left main (G) lesions MACE, major adverse cardiovascular events (all-cause death, readmission for myocardial infarction, unplanned revascularization); STEMI, ST segment elevation myocardial infarction; UA, unstable angina; NSTEMI, non-ST segment elevation myocardial infarction; CTO, chronic total occlusion. Operator volume defined as in Figure 1.