Xu Ying, Yan Weili, Cheung Yin Bun
Center for Quantitative Medicine, Duke-National University of Singapore Graduate Medical School , College Road , Singapore .
Ann Hum Biol. 2015 Jan;42(1):70-5. doi: 10.3109/03014460.2014.903998. Epub 2014 Apr 15.
"A Body Shape Index" (ABSI) is a recently proposed index that standardizes waist circumference for body mass index (BMI) and height using the scaling exponents 2/3 and 1/2, respectively, estimated from adults. Incidentally, waist-to-height ratio has been suggested as an indicator of cardiometabolic risk in adolescents.
This study aims to estimate the scaling exponents for standardizing waist circumference for BMI and height in Chinese adolescents and to estimate and compare the ability of various body shape indices in predicting cardiometabolic risk in adolescents.
Participants aged 10-17 years in the 2009 China Health and Nutrition Survey were analysed.
The appropriate scaling exponents for standardizing waist circumference for BMI and height in this adolescent sample were 0.45 and 0.55, respectively. A new ABSI-adolescents was defined accordingly. Ignoring the age dependence in the scaling exponents would lead to confounded associations. The ABSI-adolescents and the waist-to-height ratio were more associated with glycated haemoglobin and pre-diabetes, but not blood pressure, than the BMI was.
The scaling exponent for standardizing waist circumference for BMI is age-dependent. Indices based on waist circumference adjusted for BMI are more associated with glycated haemoglobin than BMI in adolescents.
“身体形状指数”（ABSI）是最近提出的一种指数，它分别使用从成年人中估算出的2/3和1/2的缩放指数，将腰围按体重指数（BMI）和身高进行标准化。顺便提一下，腰高比已被提议作为青少年心脏代谢风险的一个指标。
本研究旨在估算中国青少年中用于将腰围按BMI和身高进行标准化的缩放指数，并估算和比较各种身体形状指数预测青少年心脏代谢风险的能力。
对2009年中国健康与营养调查中10至17岁的参与者进行了分析。
在这个青少年样本中，用于将腰围按BMI和身高进行标准化的合适缩放指数分别为0.45和0.55。据此定义了一个新的青少年ABSI。忽略缩放指数中的年龄依赖性会导致混淆的关联。与BMI相比，青少年ABSI和腰高比与糖化血红蛋白和糖尿病前期的关联更强，但与血压无关。
将腰围按BMI进行标准化的缩放指数取决于年龄。在青少年中，基于经BMI调整的腰围的指数与糖化血红蛋白的关联比BMI更强。
