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Validity of body adiposity index in predicting body fat in Brazilians adults
Author(s) -
Segheto Wellington,
Coelho France Araújo,
Cristina Guimarães da Silva Danielle,
Hallal Pedro Curi,
Marins João Carlos Bouzas,
Ribeiro Andreia Queiroz,
Pessoa Milene Cristine,
Morais Sílvia Helena O.,
Longo Giana Zarbato
Publication year - 2016
Publication title -
american journal of human biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.559
H-Index - 81
eISSN - 1520-6300
pISSN - 1042-0533
DOI - 10.1002/ajhb.22901
Subject(s) - bioelectrical impedance analysis , waist , body adiposity index , medicine , body mass index , body fat percentage , anthropometry , classification of obesity , hum , circumference , fat mass , bland–altman plot , waist to height ratio , demography , limits of agreement , nuclear medicine , mathematics , art , geometry , sociology , performance art , art history
Objectives 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.