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KMID : 0356620130280010033
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Journal of Korean Society of Endocrinology
2013 Volume.28 No. 1 p.33 ~ p.40
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The Relationship of Body Composition and Coronary Artery Calcification in Apparently Healthy Korean Adults
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Yu Jung-Hee
Yim Seo-Hyoung
Yu Su-Hyeon
Lee Ji-Yong
Kim Jong-Dae
Seo Mi-Hae
Jeon Won-Seon
Park Se-Eun
Park Cheol-Young
Lee Won-Young
Oh Ki-Won
Park Sung-Woo
Rhee Eun-Jung
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Abstract
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Background: We investigated the association of coronary artery calcium score (CACS) with body composition and insulin resistance in apparently healthy Korean adults.
Methods: Nine hundred forty-five participants (mean age, 48.9 years; 628 men) in a medical check-up program were selected for analysis. Body composition was assessed by bioelectrical impedance analysis (BIA). Insulin resistance was evaluated using the homeostasis model assessment of insulin resistance (HOMA-IR). The CACS was assessed by multidetector computed tomography.
Results: One hundred forty-six subjects (15.4%) showed coronary artery calcification and 148 subjects (15.7%) had metabolic syndrome. CACS showed a significant positive correlation with age, fasting glucose level, waist circumference (WC), blood pressure, hemoglobin A1c, HOMA-IR, and waist-hip ratio (WHR) assessed by BIA. CACS had a negative correlation with high density lipoprotein cholesterol (HDL-C). Subjects with high CACS showed significantly higher mean WHRs and lower mean values for lean body mass compared with subjects without coronary artery calcification. In logistic regression analyses with coronary artery calcification as the dependent variable, the highest quartile of WHR showed a 3.125-fold increased odds ratio for coronary artery calcification compared with the lowest quartile after adjustment for confounding variables. When receiver operating characteristics analyses were performed with coronary artery calcification as the result variable, WHR showed the largest area under the curve (AUC) value among other variables except for age and WC in women (AUC=0.696 for WHR, 0.790 for age, and 0.719 for WC in women).
Conclusion: In our study population of apparently healthy Korean adults, WHR was the most significant predictor for coronary artery calcification among other confounding factors, suggesting that it may have implication as a marker for early atherosclerosis.
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KEYWORD
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Coronary artery calcium score, Waist-hip ratio, Obesity, abdominal
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