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Figure 1 Univariate analysis of demographic, clinical and quantitative coronary angiography (QCA) predictors of coronary restenosis. When a common odds ratio (OR) is presented, the interaction term between stent use and each of the variables was not significant (p  0.001), and then this is the OR (and its corresponding 95% confidence interval [CI]) for the percutaneous transluminal coronary angioplasty (PTCA) and stent populations (solid circles). The interaction term between stent use and each of the variables was significant (p < 0.001) if the PTCA (solid triangles) and stent (solid squares) populations each had two ORs (with 95% CIs) presented. AMI = acute myocardial infarction; BMI = body mass index; CABG = coronary artery bypass graft surgery; CSA = chronic stable angina; DM = diabetes mellitus; DS = diameter stenosis; HTA = hypertension; LAD = left anterior descending coronary artery; LCx = left circumflex coronary artery; MI = myocardial infarction; MLD = minimal lumen diameter; MVD = multi-vessel disease; PVD = peripheral vascular disease; RCA = right coronary artery; RD = reference diameter; UA = unstable angina.
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