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Prev Cardiol. 2009 Winter;12(1):19-26.

Association of total cholesterol/ high-density lipoprotein cholesterol ratio with proximal coronary atherosclerosis detected by multislice computed tomography.

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Cardiovascular Imaging Laboratory, Heart and Vascular Institute, 9500 Euclid Avenue, Cleveland, OH 44195, USA.


The authors assessed the association between an elevated total cholesterol to high-density lipoprotein cholesterol (TC/HDL-C) ratio (> or = 4) and proximal coronary artery disease (CAD), as observed on multislice computed tomography. Coronary multislice computed tomographic angiography (96% on 40- or 64-slice) was performed in 295 individuals (39% women; mean age, 54 +/- 13 years) without documented CAD who were referred for coronary evaluation. Significant CAD was defined as > or = 50% stenosis in the left main, proximal left anterior descending, or > or = 2 epicardial vessels. Proximal plaque was defined as presence of any plaque in left main or proximal left anterior descending vessels. Individuals with an elevated TC/HDL-C ratio vs those without had a higher prevalence of proximal plaque (62% vs 48%, P = .04) and significant CAD (19% vs 9%, P = .009). On multivariate logistic regression analysis, only age, sex, and TC/HDL-C ratio > or = 4 were associated with significant CAD and proximal plaque.

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