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A method comparison study to validate a novel parameter of obesity, the body adiposity index, in chinese subjects
Author(s) -
Lam Benjamin Chih Chiang,
Lim Su Chi,
Wong Michael Tack Keong,
Shum Eugene,
Ho Ching Yun,
Bosco Jerome Iral Ezhll,
Chen Cynthia,
Koh Gerald Choon Huat
Publication year - 2013
Publication title -
obesity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.438
H-Index - 199
eISSN - 1930-739X
pISSN - 1930-7381
DOI - 10.1002/oby.20504
Subject(s) - waist , medicine , circumference , body mass index , chinese population , body adiposity index , obesity , population , body fat percentage , dual energy , waist–hip ratio , body volume index , endocrinology , classification of obesity , fat mass , mathematics , bone mineral , osteoporosis , biology , biochemistry , geometry , environmental health , genotype , gene
Objective A recently developed parameter, the body adiposity index (BAI)—a composite index based on hip circumference and height—estimates the percentage (%) body adiposity indirectly. The BAI was compared with dual energy X‐ray absorptiometer (DEXA)‐derived % adiposity to validate the BAI in the local Chinese population. Design and Methods 105 Chinese were recruited and % adiposity estimated by BAI was compared with that derived from DEXA using the Bland Altman plot. A correlation study comparing the BAI with body mass index (BMI) was also done. Results BAI underestimated DEXA‐derived % adiposity by a mean of 5.77% with 95% limits of agreement of ±8.4%. When stratified by gender, BMI correlated with DEXA‐derived % adiposity better than BAI ( r  = 0.81 vs. 0.74 for males, P  = 0.088, and r  = 0.87 vs. 0.82 for females, P  = 0.087). Hip circumference and waist circumference also correlated better with the BMI than BAI ( r  = 0.94 vs. 0.71 for hip circumference, P  < 0.001, and r  = 0.93 vs. 0.50 for waist circumference, P  < 0.001, respectively). Conclusions The BAI underestimates DEXA‐derived % adiposity in a Chinese population in Singapore and is unlikely to be a better overall index of adiposity than the established BMI.

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