Body fat reference curves for children
Body fat reference curves for children
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DOI：
10.1038/sj.ijo.0803232
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发表时间：
2006-04-01
影响因子：
4.9
通讯作者：
Prentice, AM
中科院分区：
文献类型：
--
作者：
McCarthy, HD;Cole, TJ;Prentice, AM
目的：为了完善儿童肥胖症的诊断，通过创建新的性别特异性百分位数曲线的体脂和基础上的一个简单的和负担得起的方法，可以广泛采用在临床实践和surveillance.Design：体脂测定生物阻抗在1985年5-18岁的白人儿童在英格兰南部的学校。结果：新的体脂曲线反映了男孩和女孩之间肥胖发展的已知差异。在青春期之前，曲线在性别上是相似的，但随后明显不同，男性的体脂比例下降，女性的体脂比例继续增加。这些性别差异并没有被现有的基于体重指数的曲线所揭示。我们提出的图表中，截止定义区域的“脂肪不足”，“正常”，“肥胖”和“肥胖”设置在第2，第85和第95百分位数。这些已被设计为产生类似比例的超重/肥胖和肥胖儿童的IOTF身体质量指数cutoffs.Conclusions：肥胖，超重的组成部分，导致病理学，直接评估代表了一个显着的进步，身体质量指数。我们的新图表将由儿童生长基金会出版，用于身体脂肪的临床监测，沿着将个人测量值转换为Z分数的软件。
Objective: To refine the diagnosis of childhood obesity by creating new sex-specific centile curves for body fat and to base these references on a simple and affordable method that could be widely adopted in clinical practice and surveys.Design: Body fat was measured by bio-impedance in 1985 Caucasian children aged 5-18 years from schools in Southern England. Smoothed centile charts were derived using the LMS method.Results: The new body fat curves reflect the known differences in the development of adiposity between boys and girls. The curves are similar by sex until puberty but then diverge markedly, with males proportionately decreasing body fat and females continuing to gain. These sex differences are not revealed by existing curves based on body mass index. We present charts in which cutoffs to define regions of 'underfat', 'normal', 'overfat' and 'obese' are set at the 2nd, 85th and 95th centiles. These have been designed to yield similar proportions of overweight/overfat and obese children to the IOTF body mass index cutoffs.Conclusions: Direct assessment of adiposity, the component of overweight that leads to pathology, represents a significant advance over body mass index. Our new charts will be published by the Child Growth Foundation for clinical monitoring of body fat, along with the software to convert individual measurements to Z-scores.