Journal
OBESITY
Volume 22, Issue 7, Pages 1762-1768Publisher
WILEY
DOI: 10.1002/oby.20760
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Funding
- Leading Foreign Research Institute Recruitment Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT, & Future Planning (MSIP) [2012027176]
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Objective: To evaluate whether the association of obesity with coronary atherosclerosis depends on the risk of cardiovascular disease (CVD). Methods: A total of 1,406 asymptomatic Korean adults underwent both cardiac and abdominal multislice computed tomography (MSCT) as part of a routine health check-up. Obesity was measured using body mass index (BMI), waist circumference (WC), and MSCT-derived area/ratio of visceral and subcutaneous fat. The burden of CVD risk was assessed by the Framingham risk equation. Results: In the low-risk group for CVD, obesity measurements ( standardized odds ratio, 95% confidence interval) of BMI (1.406, 1.197-1.652), WC (1.707, 1.434-2.032), visceral fat area (1.700, 1.438-2.009), and visceral-to-subcutaneous fat ratio (1.620, 1.379-1.903) were associated with the presence of coronary calcification after adjusting for traditional CVD risks. But in the moderate-to-high risk group, the associations were attenuated. For additional adjustments of obesity measurements, in the low-risk group, WC (1.717, 1.172-2.514) and visceral-to-subcutaneous fat ratio (1.400, 1.029-1.904) were independent determinants of coronary calcification. Conclusions: Obesity is differentially associated with subclinical coronary atherosclerosis, according to the burden of CVD risk. In low-risk adults, the relative distribution of abdominal fat, as well as whole body fat, is important to coronary atherosclerosis.
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