title: Association of Metabolic Syndrome with Body Fat Percent, Anthropometric Indices in 10 To 18 Year Old Adolescents.
abstract: BACKGROUND
  Our aim was to evaluate the association of metabolic syndrome (MetS) and its components with body fat percentage (BFP) and anthropometric indicesin10 to 18year old adolescents.
  
  
  METHODS
  This was a cross-sectional study conducted on 134 Tehranian adolescents, aged 10 to 18 years (66 boys and 68 girls) in 2007. The MetS definition proposed by Cook et al. was used. Logistic regression was used to determine the relationship of MetS and its components with body mass index (BMI), waist circumference (WC), waist to height ratio (WHtR), and BFP. Using the areas under the receiver operating characteristic (ROC) curve, the discriminatory ability of anthropometric measurements and BFP was evaluated.
  
  
  RESULTS
  The mean±SD forage of boys and girls was14.5±2.3and13.0±2.9 years, respectively (P=0.001); the prevalence of MetS in these groups was 32.3 and6.5%, respectively (P=0.001). After adjusting for sex and physical activity, the highest odds ratios (95% CI) for MetS and hypertriglyceridemia were found for WC, 6.27 (2.63-14.94; P<0.05)and 3.14 (1.87-5.27; P<0.05), respectively, and those for low HDL-C and hypertension were found for BMI, 2.91 (1.73-4.90; P<0.05)and 2.26 (1.27-4.02; P=0.05), respectively. After adjusting for sex and physical activity, the highest area under ROC curve for MetS and hypertriglyceridemia was seen for WC (P=0.001), for hypertension it was seen for BMI (P=0.001), and for low HDL-C it was observed for both WC and BMI (P=0.001).
  
  
  CONCLUSIONS
  In adolescents, WC was the best predictor of MetS and hypertriglyceridemia, BMI was the best predictor of hypertension, and WC and BMI were the best predictors for low HDL-C.
authors.affiliation: 1. Obesity Research Center, Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, ShahidBeheshti University of Medical Sciences , Tehran, Iran.
authors.forename: Parvin
authors.initials: P
authors.lastname: Mirmiran
authors.affiliation: 2. Dept. of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences , Tehran, Iran.
authors.forename: Mansoureh
authors.initials: M
authors.lastname: Rezaei
authors.affiliation: 1. Obesity Research Center, Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, ShahidBeheshti University of Medical Sciences , Tehran, Iran.
authors.forename: Golaleh
authors.initials: G
authors.lastname: Asghari
authors.affiliation: 3. Dept. of Epidemiology, Faculty of Public Health, Shahid Beheshti University of Medical Sciences , Tehran, Iran.
authors.forename: Yadollah
authors.initials: Y
authors.lastname: Mehrabi
authors.affiliation: 4. Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences , Tehran, Iran.
authors.forename: Fereidoun
authors.initials: F
authors.lastname: Azizi
keywords: Adolescents; Body fat percentage; Body mass index; Iran; Metabolic syndrome; Waist circumference; Waist-to-height ratio