title: Evaluation of the body adiposity index in a Caucasian population: the Hordaland health study.
abstract: In this study, we compared the relationships of body mass index (BMI) and body adiposity index (BAI) with body fat percentage (BF%) in a Caucasian, European population. BF% was measured by dual-energy x-ray absorptiometry in a population-based cross-sectional study of 5,193 middle-aged (47-49 years) and elderly (71-74 years) men and women from the Hordaland Health Study in western Norway from 1997 to 1999. In the total population, the correlation between BAI and BF% was stronger (r = 0.78) than the correlation between BMI and BF% (r = 0.56) with similar results in the middle-aged and elderly groups. However, in men and women separately, BMI was a better correlate of BF% (for men, r = 0.76; for women, r = 0.81) than was BAI (for men, r = 0.57; for women, r = 0.72). BMI was also a better correlate of BF% than was BAI assessed by partial correlations adjusted for sex (for BMI-BF%, r = 0.79; for BAI-BF%, r = 0.67). Bland-Altman plots and BF%-stratified analyses showed that BAI tended to overestimate BF% in lean subjects and to underestimate it in those with higher proportions of body fat, but that it predicted BF% well for those whose BMI was in a normal range. At the individual level and in population studies adjusted for sex, BMI outperforms BAI as a predictor of BF%.
authors: Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Postbox 1046 Blindern, 0317 Oslo, Norway. kathrine.vinknes@medisin.uio.no
authors: Kathrine J
authors: KJ
authors: Vinknes
authors: Amany K
authors: AK
authors: Elshorbagy
authors: Christian A
authors: CA
authors: Drevon
authors: Clara G
authors: CG
authors: Gjesdal
authors: Grethe S
authors: GS
authors: Tell
authors: Ottar
authors: O
authors: Nygård
authors: Stein E
authors: SE
authors: Vollset
authors: Helga
authors: H
authors: Refsum
mesh_terms: D015502:Absorptiometry, Photon; D050154:Adiposity / Q000208:ethnology*; D000368:Aged; D015992:Body Mass Index; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009664:Norway; D011237:Predictive Value of Tests; D044465:White People / Q000706:statistics & numerical data*