体重指数作为伊朗青少年身体脂肪百分比预测和肥胖诊断的一项指标。
Body mass index as a measure of percentage body fat prediction and excess adiposity diagnosis among Iranian adolescents.
作者信息
Ejtahed Hanieh-Sadat, Asghari Golaleh, Mirmiran Parvin, Hosseinpour-Niazi Somayeh, Sherafat-KazemZadeh Roya, Azizi Fereidoun
机构信息
Obesity Research Center, Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran,
Obesity Research Center, Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
出版信息
Arch Iran Med. 2014 Jun;17(6):400-5.
BACKGROUND
Although various anthropometric methods are available for assessing body composition, these have not been compared in Iranian adolescents. The objective of the present study was to compare body mass index (BMI), waist circumference (WC), waist to hip ratio (WHR), waist to height ratio (WHtR) and sum of four skinfolds as predictors of percentage body fat (PBF) and diagnosis of excess adiposity in Iranian adolescents.
METHODS
In this cross-sectional study, all anthropometric measurements were made in133 adolescents (65 boys and 68 girls), aged 10-18 years.PBF was determined using the bioelectrical impedance analysis method. Linear regression and receiver operating characteristic (ROC) analysis were used to analyze the data. Potential covariates including sex, age, and pubertal stage were adjusted.
RESULTS
R(2)adj of models for BMI, WC, WHR, WHtR, and skinfolds were 0.67, 0.56, 0.19, 0.56, and 0.56, respectively (P < 0.001). The AUC value of BMI to differentiate between normal and obese adolescents was 0.92 (P < 0.001). The AUC of BMI was significantly higher than those of WC, WHR, and WHtR (P < 0.05).
CONCLUSIONS
The performance of BMI is better than other anthropometric indices in predicting PBF and diagnosing excess adiposity in Iranian adolescents.
背景
尽管有多种人体测量方法可用于评估身体成分，但尚未在伊朗青少年中对这些方法进行比较。本研究的目的是比较体重指数（BMI）、腰围（WC）、腰臀比（WHR）、腰高比（WHtR）和四处皮褶厚度之和作为伊朗青少年体脂百分比（PBF）预测指标以及诊断肥胖的效能。
方法
在这项横断面研究中，对133名年龄在10至18岁的青少年（65名男孩和68名女孩）进行了所有人体测量。使用生物电阻抗分析法测定PBF。采用线性回归和受试者工作特征（ROC）分析对数据进行分析。对包括性别、年龄和青春期阶段等潜在协变量进行了校正。
结果
BMI、WC、WHR、WHtR和皮褶厚度模型的调整后R²分别为0.67、0.56、0.19、0.56和0.56（P < 0.001）。BMI区分正常和肥胖青少年的AUC值为0.92（P < 0.001）。BMI的AUC显著高于WC、WHR和WHtR（P < 0.05）。
结论
在预测伊朗青少年的PBF和诊断肥胖方面，BMI的表现优于其他人体测量指标。
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