title: [Accuracy of body fat and waist circumference in predicting metabolic abnormalities indicating cardiovascular risk in adolescents].
abstract: OBJECTIVE
  To evaluate the performance of percent body fat (%BF) and waist circumference (WC) in predicting metabolic abnormalities indicating cardiovascular risk in adolescents.
  
  
  METHODS
  Cross-sectional study with a probabilistic sample of 573 adolescents aged 12 to 19 years from state public schools in Niterói, RJ. The Receiver Operating Characteristic Curve was used to evaluate the accuracy of WC and %BF in predicting alterations in blood pressure, lipid profile, and blood glucose.
  
  
  RESULTS
  The best %BF cutoff points were 21% for boys, and 23% for girls, with sensitivity (SE) and specificity (SP) of approximately 60%. The best WC cutoff points were 71 cm for boys, and 66 cm for girls (SE: 55% to 70%; SP: 55% to 78%).
  
  
  CONCLUSIONS
  Even the best cutoff points misidentified high proportions of adolescents with metabolic abnormalities. Caution is recommended in the use of these indicators for cardiovascular risk screening in this age group.
authors.affiliation: Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
authors.forename: Milena Miranda de
authors.initials: MM
authors.lastname: Moraes
authors.affiliation: Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
authors.forename: Gloria Valeria da
authors.initials: GV
authors.lastname: Veiga
mesh_terms: D000273:Adipose Tissue / Q000473:pathology*; D000293:Adolescent; D001786:Blood Glucose / Q000032:analysis*; D001794:Blood Pressure / Q000502:physiology; D001823:Body Composition; D015992:Body Mass Index; D008076:Cholesterol, HDL / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D003430:Cross-Sectional Studies; D017097:Electric Impedance; D005260:Female; D006801:Humans; D006937:Hypercholesterolemia / Q000175:diagnosis*; D006973:Hypertension / Q000175:diagnosis*; D008297:Male; D011237:Predictive Value of Tests; D012372:ROC Curve; D012307:Risk Factors; D012680:Sensitivity and Specificity; D012737:Sex Factors; D014280:Triglycerides / Q000097:blood; D055105:Waist Circumference; D055815:Young Adult
chemical_list: D001786:Blood Glucose; D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D014280:Triglycerides