title: Comparison of body mass index (BMI) with the CUN-BAE body adiposity estimator in the prediction of hypertension and type 2 diabetes.
abstract: BACKGROUND
  Obesity is a world-wide epidemic whose prevalence is underestimated by BMI measurements, but CUN-BAE (Clínica Universidad de Navarra - Body Adiposity Estimator) estimates the percentage of body fat (BF) while incorporating information on sex and age, thus giving a better match. Our aim is to compare the BMI and CUN-BAE in determining the population attributable fraction (AFp) for obesity as a cause of chronic diseases.
  
  
  METHODS
  We calculated the Pearson correlation coefficient between BMI and CUN-BAE, the Kappa index and the internal validity of the BMI. The risks of arterial hypertension (AHT) and diabetes mellitus (DM) and the AFp for obesity were assessed using both the BMI and CUN-BAE.
  
  
  RESULTS
  3888 white subjects were investigated. The overall correlation between BMI and CUN-BAE was R(2) = 0.48, which improved when sex and age were taken into account (R(2) > 0.90). The Kappa coefficient for diagnosis of obesity was low (28.7 %). The AFp was 50 % higher for DM and double for AHT when CUN-BAE was used.
  
  
  CONCLUSIONS
  The overall correlation between BMI and CUN-BAE was not good. The AFp of obesity for AHT and DM may be underestimated if assessed using the BMI, as may the prevalence of obesity when estimated from the percentage of BF.
authors.affiliation: Grupo de Investigación Interacciones Gen-Ambiente y Salud - Universidad de León (Gigas), León, Spain.|CIBER Epidemiología y Salud Pública, Madrid, Spain.
authors.forename: Vicente
authors.initials: V
authors.lastname: Martín
authors.affiliation: Grupo de Investigación Interacciones Gen-Ambiente y Salud - Universidad de León (Gigas), León, Spain. vdavb@unileon.es.|Facultad de Ciencias de la Salud. Campus de Vegazana. Universidad de León, 24071, León, Spain. vdavb@unileon.es.
authors.forename: Verónica
authors.initials: V
authors.lastname: Dávila-Batista
authors.affiliation: CIBER Epidemiología y Salud Pública, Madrid, Spain.|Instituto de Salud Pública de Navarra, Pamplona, Spain.
authors.forename: Jesús
authors.initials: J
authors.lastname: Castilla
authors.affiliation: CIBER Epidemiología y Salud Pública, Madrid, Spain.|Departament de Salut, Generalitat de Catalunya, Barcelona, Spain.
authors.forename: Pere
authors.initials: P
authors.lastname: Godoy
authors.affiliation: CIBER Epidemiología y Salud Pública, Madrid, Spain.|División de Medicina Preventiva y Salud Pública, Universidad de Jaén, Jaén, Spain.
authors.forename: Miguel
authors.initials: M
authors.lastname: Delgado-Rodríguez
authors.affiliation: CIBER Epidemiología y Salud Pública, Madrid, Spain.
authors.forename: Nuria
authors.initials: N
authors.lastname: Soldevila
authors.affiliation: Grupo de Investigación Interacciones Gen-Ambiente y Salud - Universidad de León (Gigas), León, Spain.
authors.forename: Antonio J
authors.initials: AJ
authors.lastname: Molina
authors.affiliation: Grupo de Investigación Interacciones Gen-Ambiente y Salud - Universidad de León (Gigas), León, Spain.
authors.forename: Tania
authors.initials: T
authors.lastname: Fernandez-Villa
authors.affiliation: Subdirección de Vigilancia. Comunidad de Madrid, Madrid, Spain.
authors.forename: Jenaro
authors.initials: J
authors.lastname: Astray
authors.affiliation: CIBER Enfermedades Respiratorias, Madrid, Spain.
authors.forename: Ady
authors.initials: A
authors.lastname: Castro
authors.affiliation: CIBER Epidemiología y Salud Pública, Madrid, Spain.|Unidad Mixta Genómica y Salud CSISP (FISABIO)-Universitat de València, Valencia, Spain.
authors.forename: Fernando
authors.initials: F
authors.lastname: González-Candelas
authors.affiliation: Servicio de Vigilancia de Andalucía, Sevilla, Spain.
authors.forename: José María
authors.initials: JM
authors.lastname: Mayoral
authors.affiliation: CIBER Epidemiología y Salud Pública, Madrid, Spain.|Fundación Vasca de Innovación e Investigación Sanitarias, Sondika, Spain.
authors.forename: José María
authors.initials: JM
authors.lastname: Quintana
authors.affiliation: CIBER Epidemiología y Salud Pública, Madrid, Spain.|Departament de Salut Pública, Universitat de Barcelona, Barcelona, Spain.
authors.forename: Angela
authors.initials: A
authors.lastname: Domínguez
mesh_terms: D000273:Adipose Tissue; D050154:Adiposity; D000328:Adult; D000368:Aged; D000886:Anthropometry / Q000379:methods; D015992:Body Mass Index; D015984:Causality; D003430:Cross-Sectional Studies; D003924:Diabetes Mellitus, Type 2 / Q000453:epidemiology*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000453:epidemiology*
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