Validity of self-reported height and weight and predictors of bias in adolescents
Validity of self-reported height and weight and predictors of bias in adolescents
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DOI：
10.1016/j.jadohealth.2004.07.014
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发表时间：
2005-11-01
影响因子：
7.6
通讯作者：
Moore, L
中科院分区：
文献类型：
--
作者：
Elgar, FJ;Roberts, C;Moore, L
目的：本研究的目的是评估青少年自我报告身高和体重的有效性，使用这些数据筛选超重和肥胖的准确性，以及自我报告身高和体重的偏倚预测因素。方法：采用《学龄儿童健康行为调查》（HBSC）对来自威尔士21所中学I - I年级的418名社区学生的自我报告和测量身高和体重进行评估。参与者还提供了关于节食和身体感知的自我报告数据。结果：自我报告的身高和体重与测量的身高和体重高度相关，但存在平均少报体重的偏差。52公斤导致了对超重和肥胖患病率的低估。根据自我报告数据，13.9%的样本被确定为超重，2.8%被确定为肥胖，但测量数据显示，这一比例分别为18.7%和4.4%。超重和肥胖的参与者在自我报告体重方面比正常/体重不足的参与者表现出更大的偏差和可变性。身体质量指数（BMI）和身体不满预测自我报告体重的偏差。结论：自我报告偏差对超重和肥胖筛查的准确性有显著影响。实际和感知的体型都会导致少报体重。自我报告仍将是一个重要的健康监测工具，但不应仅仅依赖于检测体重问题。对自我报告数据的准确性检查可能会改善对年轻人体重问题的调查。(c) 2005年青少年医学会。版权所有。
Purpose: The purpose of this study was to assess the validity of self-reported height and weight, the accuracy of screening for overweight and obesity using these data, and the predictors of bias in self-reported height and weight in adolescents.Method: The Health Behavior in School-Aged Children (HBSC) survey was used to assess self-reported and measured height and weight in a community sample of 418 students in year I I from 21 secondary schools in Wales. Participants also provided self-report data on dieting and body perception.Results: Self-reported and measured height and weight were highly correlated but a bias of underreporting of body weight by an average of .52 kg contributed to underestimation of the prevalence of overweight and obesity. Based on self-report data, 13.9% of the sample was identified as overweight and 2.8% was identified as obese, but measured data showed rates of 18.7% and 4.4%, respectively. Overweight and obese participants showed greater bias and variability in self-reported weight than normal/underweight participants. Body mass index (BMI) and body dissatisfaction predicted bias in self-reported weight.Conclusion: Self-report bias had significant consequences for the accuracy of a screen for overweight and obesity. Actual and perceived body size each contribute to underreporting body weight. Self-reports will remain an important health surveillance tool but should not be relied on exclusively to detect weight problems. Accuracy checks of self-report data may improve surveys of weight problems in young people. (c) 2005 Society for Adolescent Medicine. All rights reserved.