title: Validity of body adiposity index in predicting body fat in Brazilians adults.
abstract: OBJECTIVE
  The aim of this study was to compare various methods of assessing body compositions with body adiposity index (BAI) and to identify the validity of BAI as a predictor of body fat in Brazilian adults.
  
  
  METHODS
  This study included 706 individuals (average age 37.3 years, SD = 12.1). Anthropometric data included percent body fat obtained by skinfold thicknesses, bioelectrical impedance analysis and DXA. Body mass index (BMI), waist/hip ratio, and BAI were calculated. The correlation between variables was assessed by Pearson's correlation coefficient, and the Bland-Altman and Kaplan Meier graphic approaches were used to verify the agreement between BAI and DXA.
  
  
  RESULTS
  There was a strong correlation between BAI and BMI (r = 0.84 in men and r = 0.86 in women, P < .001), waist circumference (r = 0.77 in men and r = 0.75 in women, P < .001) percent fat by skinfold thicknesses (r = 0.71 in men and r = 0.71 in women, P < .001) and by DXA (r = 0.72 in men and r = 0.78 in women, P < .001). The Bland-Altman approach showed an overestimation of BAI in males and an underestimation in women using DXA as the reference method. The agreement between BAI and DXA through the Kaplan-Meier analysis was 41%.
  
  
  CONCLUSIONS
  It was found that BAI does not replace other measurements of body fat, but compared with more complex methods can be an alternative for estimating the body fat in the absence of these methods.
authors: Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil.
authors: Wellington
authors: W
authors: Segheto
authors: Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil.
authors: France Araújo
authors: FA
authors: Coelho
authors: Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil.
authors: Danielle
authors: D
authors: Cristina Guimarães da Silva
authors: Department of Gymnastics and Health, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, 96020-220, Brazil.
authors: Pedro Curi
authors: PC
authors: Hallal
authors: Department of Physical Education and Sports, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil.
authors: João Carlos Bouzas
authors: JC
authors: Marins
authors: Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil.
authors: Andreia Queiroz
authors: AQ
authors: Ribeiro
authors: Department of Nutrition, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, 30130-100, Brazil.
authors: Milene Cristine
authors: MC
authors: Pessoa
authors: Department of Nutrition, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, 30130-100, Brazil.
authors: Sílvia Helena O
authors: SH
authors: Morais
authors: Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-000, Brazil.
authors: Giana Zarbato
authors: GZ
authors: Longo
mesh_terms: D015502:Absorptiometry, Photon / Q000379:methods*; D000273:Adipose Tissue / Q000378:metabolism*; D050154:Adiposity; D000328:Adult; D000886:Anthropometry / Q000379:methods*; D001823:Body Composition; D001938:Brazil; D017097:Electric Impedance; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012885:Skinfold Thickness; D055815:Young Adult
keywords: adults; body adiposity index; obesity