Kevin K W Olesen1,2, Morten Madsen2, Gro Egholm1, Troels Thim1, Lisette O Jensen3, Bent Raungaard4, Hans E Bøtker1, Henrik T Sørensen2, Michael Maeng5. 1. Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark. 2. Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark. 3. Department of Cardiology, Odense University Hospital, Odense, Denmark. 4. Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark. 5. Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark michael.maeng@ki.au.dk.
Abstract
OBJECTIVE: The risk of myocardial infarction (MI) in patients with diabetes is greater than for patients without diabetes. Consequently, prophylactic treatment is recommended for patients with diabetes and risk factors for ischemic heart disease. We aimed to estimate the risk of adverse cardiac events in patients with and without diabetes with and without coronary artery disease (CAD) after coronary angiography (CAG). RESEARCH DESIGN AND METHODS: A population-based cohort of patients registered in the Western Denmark Heart Registry who underwent CAG between 1 January 2003 and 31 December 2012 was stratified according to the presence or absence of obstructive CAD and diabetes. End points were death, cardiac death, and MI. Unadjusted and adjusted rate ratios (RRs) were calculated by using patients without diabetes and without CAD as the reference group. RESULTS: We included 93,866 patients of whom 12,544 (13.4%) had diabetes at the time of CAG. Median follow-up was 4.1 years. Patients with and without diabetes without obstructive CAD had the same adjusted risk of death (RR 1.03 [95% CI 0.92-1.15]), cardiac death (RR 1.21 [95% CI 0.90-1.64]), and MI (RR 0.88 [95% CI 0.65-1.17]). Patients with diabetes without CAD were more often treated with statins (75.3% vs. 46.0%) and aspirin (65.7% vs. 52.7%) than patients without diabetes and CAD. CONCLUSIONS: In a real-world population, patients with diabetes with high rates of statin and aspirin treatment had the same risk of cardiovascular events as patients without diabetes in the absence of angiographically significant CAD.
OBJECTIVE: The risk of myocardial infarction (MI) in patients with diabetes is greater than for patients without diabetes. Consequently, prophylactic treatment is recommended for patients with diabetes and risk factors for ischemic heart disease. We aimed to estimate the risk of adverse cardiac events in patients with and without diabetes with and without coronary artery disease (CAD) after coronary angiography (CAG). RESEARCH DESIGN AND METHODS: A population-based cohort of patients registered in the Western Denmark Heart Registry who underwent CAG between 1 January 2003 and 31 December 2012 was stratified according to the presence or absence of obstructive CAD and diabetes. End points were death, cardiac death, and MI. Unadjusted and adjusted rate ratios (RRs) were calculated by using patients without diabetes and without CAD as the reference group. RESULTS: We included 93,866 patients of whom 12,544 (13.4%) had diabetes at the time of CAG. Median follow-up was 4.1 years. Patients with and without diabetes without obstructive CAD had the same adjusted risk of death (RR 1.03 [95% CI 0.92-1.15]), cardiac death (RR 1.21 [95% CI 0.90-1.64]), and MI (RR 0.88 [95% CI 0.65-1.17]). Patients with diabetes without CAD were more often treated with statins (75.3% vs. 46.0%) and aspirin (65.7% vs. 52.7%) than patients without diabetes and CAD. CONCLUSIONS: In a real-world population, patients with diabetes with high rates of statin and aspirin treatment had the same risk of cardiovascular events as patients without diabetes in the absence of angiographically significant CAD.
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