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Figure 1 Survival curves of control subjects (bottom black line), patients with metabolic syndrome (middle black line), and diabetic patients (top black line). Normal patients: relative risk 1.00 (reference category); metabolic syndrome patients: relative risk 1.29, 95% confidence interval (CI) 1.10 to 1.51, p = 0.002; diabetic patients: relative risk 1.68, 95% CI 1.44 to 1.95, p < 0.0001. Cox proportional hazard model adjusted for age, gender, smoking habits, total cholesterol, presence of peripheral vascular disease, electrical instability, residual ischemia, left ventricular ejection fraction, n-3 polyunsaturated fatty acids, vitamin E, antiplatelet agents, angiotensin-converting enzyme inhibitors, statins at six months, and beta-blockers.