title: Utility of body mass index, waist circumference and waist-to-height ratio as screening tools for hyperglycemia in young people.
abstract: OBJECTIVE
  To evaluate the ability of BMI, WC and WHtR to discriminate hyperglycemia in young people, and to determine whether there is an increase in the accuracy with the addition of WC and/or WHtR to BMI.
  
  
  METHODS
  A cross-sectional study was conducted on 1,139 schoolchildren aged 6 to 17 years from Northeastern Brazil. Body weight, height, WC and fasting glucose levels were measured, and the BMI and WHtR were calculated. The presence of hyperglycemia was defined as a fasting glucose level ≥ 100 mg/dL.
  
  
  RESULTS
  The prevalence of hyperglycemia was 6.6%. Strong correlations were observed between the anthropometric indicators studied (BMI vs. WC = 0.87; BMI vs. WHtR = 0.87; WC vs. WHtR = 0.90). Hyperglycemia was more likely to be present in young people with excess weight (PR = 1.70), high WC (PR = 1.85), and high WHtR (PR = 1.91). The accuracies to discriminate hyperglycemia were significant, but low, for the individual (BMI = 0.56; WC = 0.53; WHtR = 0.55) and combined indicators (BMI + WC = 0.55; BMI + WHtR = 0.55).
  
  
  CONCLUSIONS
  Our findings do not support the use of BMI, WC or WHtR as screening tools for hyperglycemia in children and adolescents.
authors.affiliation: Curso de Educação Física da Universidade Federal do Recôncavo da Bahia, Amargosa, BA, Brasil.|Centro de Investigação em Atividade Física, Saúde e Lazer, da Faculdade de Ciências do Desporto da Universidade do Porto, Porto, Portugal.|Faculdade de Medicina, Programa de Pós-Graduação em Medicina e Saúde, Universidade Federal da Bahia, Salvador, BA, Brasil.
authors.forename: Teresa Maria Bianchini de
authors.initials: TM
authors.lastname: Quadros
authors.affiliation: Curso de Educação Física da Universidade Federal do Recôncavo da Bahia, Amargosa, BA, Brasil.|Centro de Investigação em Atividade Física, Saúde e Lazer, da Faculdade de Ciências do Desporto da Universidade do Porto, Porto, Portugal.|Faculdade de Medicina, Programa de Pós-Graduação em Medicina e Saúde, Universidade Federal da Bahia, Salvador, BA, Brasil.
authors.forename: Alex Pinheiro
authors.initials: AP
authors.lastname: Gordia
authors.affiliation: Centro de Investigação em Atividade Física, Saúde e Lazer, da Faculdade de Ciências do Desporto da Universidade do Porto, Porto, Portugal.
authors.forename: Jorge
authors.initials: J
authors.lastname: Mota
authors.affiliation: Faculdade de Medicina, Programa de Pós-Graduação em Medicina e Saúde, Universidade Federal da Bahia, Salvador, BA, Brasil.
authors.forename: Luciana Rodrigues
authors.initials: LR
authors.lastname: Silva
mesh_terms: D000293:Adolescent; D001786:Blood Glucose / Q000032:analysis; D015992:Body Mass Index; D001938:Brazil / Q000453:epidemiology; D002648:Child; D003430:Cross-Sectional Studies; D000068598:Data Accuracy; D005215:Fasting / Q000097:blood; D005260:Female; D006801:Humans; D006943:Hyperglycemia / Q000175:diagnosis* / Q000453:epidemiology; D008297:Male; D008403:Mass Screening / Q000592:standards*; D015995:Prevalence; D012680:Sensitivity and Specificity; D055105:Waist Circumference; D065927:Waist-Height Ratio
chemical_list: D001786:Blood Glucose