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  • Title: Abdominal obesity, metabolic dysfunction, and metabolic syndrome in U.S. adolescents: National Health and Nutrition Examination Survey 2011-2016.
    Author: Gaston SA, Tulve NS, Ferguson TF.
    Journal: Ann Epidemiol; 2019 Feb; 30():30-36. PubMed ID: 30545765.
    Abstract:
    PURPOSE: The objectives were to use National Health and Nutrition Examination Survey data to (1) estimate the prevalence of metabolic syndrome (MetS) risk factors (elevated blood pressure, triglycerides, blood glucose, and low HDL cholesterol); (2) estimate the prevalence of MetS using three common definitions; and (3) compare the odds of MetS risk factors/MetS when using different measures of abdominal obesity (sagittal abdominal diameter [SAD] versus waist circumference [WC]) among U.S. adolescents. METHODS: Analyses were performed on data collected from adolescents aged 12-19 years (n = 1214) participating in the 2011-2016 National Health and Nutrition Examination Survey. Prevalence of MetS risk factors and MetS were estimated. Unadjusted and adjusted binomial/multinomial logistic regressions were performed to test associations between WC and SAD z-scores and MetS risk factors/MetS. Analyses were performed for all participants and were stratified by sex as well as race/ethnicity. RESULTS: Males were more likely to have MetS risk factors. Depending on sex and the definition applied, the prevalence of MetS ranged from 2% to 11% and was lowest among females. Adjusted logistic regressions showed that one z-score increase in SAD and WC resulted in similar increased odds of MetS risk factors/MetS, but associations between abdominal obesity and MetS varied by the definition applied and race/ethnicity. CONCLUSIONS: Metabolic dysfunction and MetS are prevalent among U.S. adolescents, and it is important to consider how MetS components and MetS are measured in population inference.
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