Division of Health and Nutrition Examination Surveys, Division of Nutrition and Physical Activity and Obesity, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Obesity (Silver Spring). 2013 Jan;21(1):E64-70. doi: 10.1002/oby.20054.
A recent, cross-sectional analysis of adults found that the hip circumference divided by height(1.5) minus 18 (the body adiposity index, BAI) was strongly correlated (r = 0.79) with percent body fat determined by dual energy X-ray absorptiometry. The BAI was proposed as a more accurate index of body fatness than BMI. We examined whether BAI was more strongly related, than was BMI and waist circumference, to skinfold thicknesses and levels of various risk factors for coronary heart disease.
Cross-sectional analyses of adults (n = 14,263 for skinfold thickness; n=6291 for fasting lipid levels) in the National Health and Nutrition Examination Survey (NHANES) III, 1988-1994.
As compared with BMI and waist circumference, we found that BAI was less strongly associated with the skinfold sum and with risk factor levels. For example, correlations with the skinfold sum were r = 0.79 (BMI) vs. r = 0.70 (BAI) among men, and r = 0.86 (BMI) vs. r = 0.79 (BAI) among women; p < 0.001 for the difference between each pair of correlations. An overall index of the 7 risk factors was also more strongly associated with BMI and waist circumference than BAI in analyses stratified by sex, race-ethnicity and age. Multivariable analyses indicated that if BMI was known, BAI provided little additional information on risk factor levels.
Based on the observed associations with risk factor levels and skinfold thicknesses, we conclude that BAI is unlikely to be a better index of adiposity than BMI.
最近，一项对成年人的横断面分析发现，腰围除以身高(1.5)减去 18（身体脂肪指数，BAI）与双能 X 射线吸收法测定的体脂百分比呈强相关(r = 0.79)。BAI 被提议作为一种比 BMI 更准确的体脂指数。我们研究了 BAI 是否比 BMI 和腰围与皮褶厚度和各种冠心病风险因素的水平更密切相关。
对 1988-1994 年国家健康和营养检查调查(NHANES III)中成年人(n = 14263 例皮褶厚度；n = 6291 例空腹血脂水平)进行了横断面分析。
与 BMI 和腰围相比，我们发现 BAI 与皮褶厚度和风险因素水平的相关性较弱。例如，与皮褶厚度总和的相关性在男性中为 r = 0.79(BMI)与 r = 0.70(BAI)，在女性中为 r = 0.86(BMI)与 r = 0.79(BAI)；p<0.001 为每对相关系数之间的差异。在按性别、种族和年龄分层的分析中，7 种风险因素的综合指数与 BMI 和腰围的相关性也强于 BAI。多变量分析表明，如果已知 BMI，则 BAI 对风险因素水平的提供的信息很少。
根据与风险因素水平和皮褶厚度的观察相关性，我们得出结论，BAI 不太可能是比 BMI 更好的肥胖指数。
