R Eshtiaghi1, S Keihani2, F Hosseinpanah2, M Barzin2, F Azizi3. 1. Metabolic Research Center, AJA University of Medical Science, Tehran, Iran. 2. Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 3. Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abstract
OBJECTIVE: This study aims to assess the natural course of metabolically healthy abdominal obese (MHAO) phenotype and determine the predictors of change in the metabolic status in this population over 10 years of follow-up. METHODS: A total of 916 MHAO subjects from the Tehran Lipid and Glucose Study were followed for changes in their metabolic health status. Anthropometric and metabolic indices were measured at baseline and were compared between subjects with healthy and unhealthy metabolic conditions at the end of follow-up. Predictors of change in metabolic health were assessed in logistic regression models. National waist circumference cutoffs were used for definition of abdominal obesity. Metabolic health was defined as ⩽1 metabolic components of metabolic syndrome according to the Joint Interim Statement criteria. RESULTS: At the end of the follow-up, nearly half of the MHAO subjects lost their metabolic health and 42.1% developed metabolic syndrome by definition. Low high-density lipoprotein cholesterol, hypertriglyceridemia and homeostasis model assessment-insulin resistance at baseline were significant predictors of change in metabolic health condition. CONCLUSION: MHAO is a relatively unstable condition and a considerable percentage of these individuals will lose their metabolic health as time passes. Baseline metabolic characteristics may be useful predictors of this change and should be considered in the care of these individuals.
OBJECTIVE: This study aims to assess the natural course of metabolically healthy abdominal obese (MHAO) phenotype and determine the predictors of change in the metabolic status in this population over 10 years of follow-up. METHODS: A total of 916 MHAO subjects from the Tehran Lipid and Glucose Study were followed for changes in their metabolic health status. Anthropometric and metabolic indices were measured at baseline and were compared between subjects with healthy and unhealthy metabolic conditions at the end of follow-up. Predictors of change in metabolic health were assessed in logistic regression models. National waist circumference cutoffs were used for definition of abdominal obesity. Metabolic health was defined as ⩽1 metabolic components of metabolic syndrome according to the Joint Interim Statement criteria. RESULTS: At the end of the follow-up, nearly half of the MHAO subjects lost their metabolic health and 42.1% developed metabolic syndrome by definition. Low high-density lipoprotein cholesterol, hypertriglyceridemia and homeostasis model assessment-insulin resistance at baseline were significant predictors of change in metabolic health condition. CONCLUSION:MHAO is a relatively unstable condition and a considerable percentage of these individuals will lose their metabolic health as time passes. Baseline metabolic characteristics may be useful predictors of this change and should be considered in the care of these individuals.
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