External Validation of Equations that Use Demographic and Anthropometric Measurements to Predict Percent Body Fat.
External Validation of Equations that Use Demographic and Anthropometric Measurements to Predict Percent Body Fat.
复制标题
使用人口统计和人体测量来预测身体脂肪百分比的方程的外部验证。
DOI：
10.1002/osp4.300
复制
发表时间：
2018
影响因子：
2.2
通讯作者：
Czerwinski,SA
中科院分区：
文献类型：
--
作者：
Reynolds,KR;Stevens,J;Cai,J;Lewis,CE;Choh,AC;Czerwinski,SA
已经发表了许多使用人口统计学和人体测量学预测体脂百分比的公式，但这些公式的外部验证有限。本研究的目的是验证已发表的方程，使用人体测量学预测百分之体脂使用外部data.MethodsData是从内脏脂肪，代谢率，冠心病风险I（Vim I）的研究和费尔斯纵向研究（费尔斯）。Vim I在来自CARDIA研究的受试者亚组中进行，包括28-40岁的黑人和白色成人（n= 392）。Fels由8-88岁的白色受试者组成（n= 1，044）。在这两项研究中，通过双X射线吸收测定法（DXA）评估的体脂百分比与使用Stevens et al.和其他9个已发表的方程计算的结果进行了比较。ResultsIn general，Stevens方程的表现优于其他研究的方程。例如，方程“I”在Vim I女性、Fels成人和Fels青年中，R2估计值分别为0.765、0.757和0.789。在男性中，Vim I的估计值为0.702，Fels成人为0.822，Fels青年为0.905。从9个公布的方程的结果表明，R2高在相应groups.ConclusionsOur的结果表明，几个史蒂文斯方程具有外部效度上级的其他9个公布的方程之间的不同年龄组，性别和种族。
ObjectiveNumerous equation to predict percent body fat using demographics and anthropometrics have been published but external validation of these equations is limited. The objective of this study was to validate published equations that use anthropometrics for prediction of percent body fat using external data.MethodsData were from the Visceral Fat, Metabolic Rate, and Coronary Heart Disease Risk I (VIM I) Study and the Fels Longitudinal Study (Fels). VIM I was conducted in a subset of subjects from the CARDIA study and included black and white adults 28–40 years (n= 392). Fels consisted of white participants 8–88 years (n= 1,044). Percent body fat assessed by dual X‐ray absorptiometry (DXA) in these two studies was compared to results calculated using 13 equations from Stevens et al. and nine other published equations.ResultsIn general, the Stevens equations performed better than equations from other studies. For example, equation “I“ in women in VIM I, Fels adults, and Fels youth, R2estimates were 0.765, 0.757 and 0.789, respectively. In men the estimates were 0.702 in VIM I, 0.822 in Fels adults and 0.905 in Fels youth. None of the results from the nine published equations showed R2this high in corresponding groups.ConclusionsOur results indicate that several of the Stevens equations have external validity superior to that of nine other published equations among varying age groups, genders and races.