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  • Title: Overall and abdominal obesity indicators had different association with central arterial stiffness and hemodynamics independent of age, sex, blood pressure, glucose, and lipids in Chinese community-dwelling adults.
    Author: Fu S, Luo L, Ye P, Liu Y, Zhu B, Zheng J, Bai Y, Bai J.
    Journal: Clin Interv Aging; 2013; 8():1579-84. PubMed ID: 24348027.
    Abstract:
    OBJECTIVE: Limited large sample studies have specially compared overall and abdominal obesity in relation to central arterial stiffness and hemodynamics in community-dwelling adults, especially in the People's Republic of China. This study aimed to compare the relationship between an overall obesity indicator (body mass index [BMI]), an abdominal obesity index (waist circumference [WC]), and central arterial stiffness and hemodynamics, independent of age, sex, blood pressure, glucose, and lipids, in Chinese community-dwelling adults. METHODS: For 2,624 adults in this study, anthropometric indices, such as BMI and WC, were measured. Central arterial stiffness was assessed by carotid-femoral pulse wave velocity (cfPWV). Central hemodynamics was represented by central pulse pressure (cPP). RESULTS: Both overall and abdominally obese adults were older, with significantly higher cfPWV, cPP, peripheral pulse pressure (pPP), fasting blood glucose (FBG), and low-density lipoprotein-cholesterol (LDL-C), and significantly lower high-density lipoprotein-cholesterol (HDL-C). After adjusting for age and sex, both the overall and abdominally obese individuals had independently higher pPP, FBG, and LDL-C levels, and lower HDL-C level. The overall obese individuals had independently higher cPP, but not cfPWV, after adjusting for age and sex, while the abdominally obese individuals had independently higher cfPWV, but not cPP. After adjusting for age, sex, pPP, FBG, LDL-C, and HDL-C, WC, but not BMI, was independently correlated with cfPWV, and BMI, but not WC, was independently associated with cPP. Age, sex, pPP, FBG, and HDL-C levels have independent association with cfPWV. Age, sex, pPP, but not FBG and HDL-C levels, have independent association with cPP. CONCLUSION: The abdominal obesity index (WC), rather than the overall obesity indicator (BMI), was related to central arterial stiffness, independent of age, sex, blood pressure, glucose and lipids, while the overall obesity indicator (BMI), rather than the abdominal obesity indicator (WC), was independently correlated with central hemodynamics. Age, sex, and blood pressure were independently associated with central arterial stiffness and hemodynamics, but blood glucose and lipids were independently associated with central arterial stiffness, rather than hemodynamics.
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