Seungho Ryu

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Relationship between obesity and several cardiovascular disease risk factors in apparently healthy Korean individuals: comparison of body mass index and waist circumference.

Ki Chul Sung; Seungho Ryu; Gerald M Reaven; (Profiled Author: Seungho Ryu)

Division of Cardiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 110-746, South Korea.
Metabolism: clinical and experimental 2007;56(3):297-303.

Recent versions of the criteria for diagnosing the metabolic syndrome have emphasized the superiority of abdominal obesity, as measured by waist circumference (WC), in identifying individuals at increased risk for cardiovascular disease (CVD). On the other hand, there is evidence that body mass index (BMI), an estimate of overall obesity, fulfills this function as effectively as does WC. The present analysis was performed to compare the relative use of these 2 indices of obesity to identify multiple CVD risk factors. The study population consisted of 19584 apparently healthy men and women of Korean ethnicity, and the CVD risk factors measured included fasting plasma concentrations of the following variables: glucose, insulin, total, low-density lipoprotein, and high-density lipoprotein cholesterol, triglycerides, apolipoproteins A-I and B, and high-sensitivity C-reactive protein. The univariate relationships between the 2 indices of obesity and the 9 CVD risk factors were relatively modest (the highest r value was 0.45), but they were all statistically significant, and the magnitude of the relationships between the CVD risk factors and BMI and WC were comparable. When multivariate analysis was performed, adjusting for age and either BMI or WC, each index of obesity continued to have an independent relationship, albeit reduced in magnitude, with the CVD risk factors. These findings suggest that measurements of BMI provide as much clinical insight as do determinations of WC in identifying multiple CVD risk factors in a large population of apparently healthy Korean men and women, and that the use of both indices would provide the most information.

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