In people with type 2 diabetes mellitus (T2DM), a coronary artery calcium score of ≥10 indicates a high risk of cardiovascular events, according to a recent meta-analysis of observational studies.The risk of cardiovascular disease in healthy individuals can be predicted by determining the levels of calcium in coronary arteries. Patients with T2DM have a higher risk of mortality than healthy individuals at similar levels of coronary artery disease; hence, risk prediction should be optimized.