Abstract
AimsAnthropometric indices have been proposed for the early detection of metabolic syndrome (MetS) and its risk factors. The present study aimed to determine optimal cutoff points for the Body Mass Index (BMI), Waist Circumference (WC), and Waist Hip Ratio (WHR) in the prediction of MetS. MethodsThis cross-sectional study was performed on 9746 adults 35–65 years, recruited in Ravansar Non-Communicable Diseases (RaNCD) cohort. The receiver operating characteristic (ROC) curve analysis was used to compare the predictive validity and determine optimal cutoff values. ResultsThe optimal cutoff points for BMI, WC and WHR were 27.3 kg/m2 (AUC: 78.6; 95%CI 77.1, 80.1), 97 cm (AUC: 63.8; 95%CI 60.4, 67.2) and 0.95 (AUC: 75.5; 95% CI 73.9, 77.1), respectively in men for the prediction of MetS. But in women the optimal cutoff points for BMI, WC and WHR were 28.6 kg/m2 (AUC: 65.7; 95%CI 62.1, 69.4), 98.1 cm (AUC: 65.6; 95%CI 62.4,68.8) and 0.95 (AUC:62.39; 95%CI 60.9,63.9). The risk of MetS in men and women with a BMI higher than the optimal cutoff point was respectively 2.23 and 2.30 times higher than that in those with a WC lower than the cutoff point. ConclusionsBMI is a better predictor of MetS than WC and WHR in adults 35–65 years. We recommend that the optimal cut off point be set for men 27.3 kg/m2 and for women 28.6 kg/m2.
Published Version
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