Abstract
AimsThe cardiovascular risk factors and diabetic complications are related to coronary atherosclerosis. However, the evaluation of the prevalence of coronary atherosclerosis based on their accumulation remains to be determined. Methods247 consecutive Chinese subjects with type 2 diabetes but without history of coronary heart disease (CHD) underwent 320-slice computed tomographic coronary angiography, including no coronary atherosclerosis, non-obstructive atherosclerosis (<50% stenosis) and obstructive atherosclerosis (≥50% stenosis). Conventional cardiovascular risk factors, albuminuria, renal dysfunction and diabetic retinopathy (DR) were determined. Framingham Risk Score (FRS) was used to assess the 10-year CHD risk. ResultsIncrease in burden of cardiovascular risk factors and diabetic complications were significantly associated with the likelihood of being a higher coronary atherosclerosis category. In the analysis for trend through the categories of burden score or FRS stratification, the percentage of obstructive atherosclerosis was increased and the percentage of no atherosclerosis decreased as the burden score and FRS increased (all p<0.005), respectively. The areas under the receiver operator curve for the burden score versus FRS were greater at predicting coronary atherosclerosis and obstructive atherosclerosis (p=0.004 and p=0.002), respectively. ConclusionsThe prevalence of coronary atherosclerosis was increased with the accumulation of cardiovascular risk factors and diabetic complications. The burden of these clinical and biochemical risk factors has increased ability for prediction of the presence and severity of coronary atherosclerosis over FRS in type 2 diabetic patients.
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