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Model comparison of adjusted risk for primary endpoint. The following covariates were sequentially included in the adjusted models: Model 1: age only; Model 2: Model 1 + clinical risk factors; Model 3: Model 2 + angiographic and procedural factors; CI — confidence interval; HR — hazard ratio; NSTEMI — non-ST-segment elevation myocardial infarction; SAP — stable angina pectoris; STEMI — ST-segment elevation myocardial infarction; UAP — unstable angina pectoris.
