Comparison of body adiposity index (BAI) and air displacement plethysmograph with estimations of % body fat in adults with Down's syndrome

作者：Rossato M^*; Dellagrana R A; de Souza Bezerra E; da Costa R M; dos Santos J O L; Silva D A S; Diefenthaeler F

来源：European Journal of Clinical Nutrition, 2017, 71(11): 1341-1344.

DOI：10.1038/ejcn.2017.18

BACKGROUND/OBJECTIVES: The aim of this study was to verify the agreement between body fat percentage (% BF) values evaluated by air displacement plethysmograph (ADP) and body adiposity index (BAI) in adults with Down's syndrome (DS).
SUBJECTS/METHODS: Forty-five adults with DS volunteered to participate in this study (19 women; age 28.7 +/- 8.5 years and 26 men; age 29.1 +/- 8.8 years). The % BF was measured by ADP (% BFADP) and estimated by anthropometric measures [% BF = (hip circumference/height)1.5 - 18] (% BFBAI). Agreement between methods was evaluated by paired t-test, Pearson's correlation coefficient and Bland-Altman analysis.
RESULTS: Although high correlation coefficients were found between % BFADP and % BFBAI for women (r = 0.78, P < 0.05) and men (r = 0.87, P < 0.05), significant differences were observed between methods for both sexes (38.9 +/- 8.9 vs 42.5 +/- 8.5% for women, and 25.8 +/- 11.3 vs 32.6 +/- 5.4% for men in % BFADP and % BFBAI, respectively). Moreover, Bland-Altman analysis showed that the mean error estimate was +3.6 (95% CI, -7.59 to 14.79) in women and +6.74 (95% CI, -7.25 to 20.72) in men.
CONCLUSIONS: The results indicate that BAI seems to be a limited method to evaluate % BF in women and in men with DS.

• 出版日期2017-11