title: Metabolic syndrome: comparison of diagnosis criteria.
abstract: OBJECTIVE
  To propose a new criterion for the diagnosis of metabolic syndrome (MS) in adolescents and to check its consistency with those proposed by Jolliffe and Janssen and by the International Diabetes Federation (IDF).
  
  
  METHODS
  This is a cross-sectional study of 80 obese adolescents aged 14 to 19 years. Anthropometric (weight, height, and waist circumference) and laboratory (fasting triglycerides, HDLc, glucose, and insulin) parameters, as well as blood pressure were evaluated. The HOMA-IR index was used to characterize insulin resistance, and the presence of steatosis was assessed by hepatic ultrasound. Agreement analyses across the three criteria were made using the kappa coefficient.
  
  
  RESULTS
  The prevalence of MS was 13.5, 15, and 25% for IDF and Jolliffe and Janssen's criteria and the proposed method, respectively. A nearly perfect agreement between Jolliffe and Janssen's and IDF (kappa = 0.94) criteria and a moderate agreement between the new criteria and the previous two (kappa = 0.46 and 0.41, respectively) were observed.
  
  
  CONCLUSIONS
  The highest prevalence of MS was observed with the criterion proposed in this study, which included steatosis and insulin resistance as parameters, thus being able to diagnose a larger number of adolescents at metabolic risk.
authors: Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.
authors: Mônica de Lima Raeder
authors: Mde L
authors: Cavali
authors: Maria Arlete Meil Schimith
authors: MA
authors: Escrivão
authors: Rosana Sarmento
authors: RS
authors: Brasileiro
authors: José Augusto de Aguiar Carrazedo
authors: JA
authors: Taddei
mesh_terms: D000293:Adolescent; D000886:Anthropometry; D001938:Brazil / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005234:Fatty Liver / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007333:Insulin Resistance / Q000502:physiology; D008297:Male; D024821:Metabolic Syndrome / Q000175:diagnosis* / Q000453:epidemiology; D015995:Prevalence; D015203:Reproducibility of Results; D014463:Ultrasonography; D055815:Young Adult