Presence of coronary artery disease in adults with newly detected diabetes mellitus

PURPOSE: We aimed to analyze the presence and extent of coronary artery disease in patients with newly detected diabetes mellitus. METHODS: Clinical health examinations of asymptomatic community-dwelling adults between 2008 and 2018 at a medical center in Taiwan were reviewed. Coronary computed tomography angiography was performed in 444 participants, of which 338, 54, and 52 were categorized as 'without diabetes mellitus', 'newly detected diabetes mellitus', and 'known diabetes mellitus', respectively. RESULTS: Prevalence of significant coronary artery disease (≥ 50% stenosis) was higher in participants with newly detected diabetes mellitus than in participants without diabetes mellitus (40.7% vs. 20.1%, p < 0.0001). Among those with coronary artery stenosis, the number of coronary vessels with significant obstruction (0.72 vs. 0.42, p = 0.0147) was also higher in participants with newly detected diabetes mellitus. Using multiple logistic regression analysis, new detection of diabetes mellitus was identified as an independent risk factor for significant coronary artery disease (odds ratio: 2.153, 95% confidence interval: 1.112-4.166). CONCLUSION: Asymptomatic patients with newly detected diabetes mellitus had higher prevalence and greater extent of coronary artery disease than those without diabetes mellitus. More attention should thus be paid to the assessment of coronary artery disease in patients with newly detected diabetes mellitus.