Tehard B, van Liere M J, Com Nougué C, Clavel-Chapelon F
Institut Gustave Roussy, Villejuif Cedex, France.
J Am Diet Assoc. 2002 Dec;102(12):1779-84. doi: 10.1016/s0002-8223(02)90381-0.
To examine the validity of self-reported values for current anthropometric measurements and factors related to misreporting.
E3N, a prospective cohort study of cancer risk factors, conducted in France and part of the European Prospective Investigation on Cancer. E3N comprises 100,000 women, born between 1925 and 1950, followed with self-administered questionnaires sent every 18 to 24 months starting in 1990.
152 women for the validation study of self-reported anthropometric measurements, and 91,815 women selected to evaluate factors affecting misreporting of body silhouette.
Paired t tests, Pearson and Spearman correlations were applied to evaluate the validity of self-reported measures, and analysis of variance and logistic regression were used to assess the factors influencing misreporting of silhouette.
The correlation coefficients between self- and external measurements were high. All but sitting height (r = 0.56) were more than 0.80, with weight and bust (nipples) measurement correlation coefficients attaining 0.94. The correlation between body mass index (BMI), measured by the technician and the self-reported silhouette, was 0.78. Small height was always associated with misclassification. Specific factors related to a more favorable perception of body silhouette were: being overweight, small height, younger age, and a lower level of education. These women were also more frequently unmarried, more physically active, and had had a slender body shape during adolescence. Results denoting a less favorable perception of body shape were reversed. CONCLUSION/APPLICATIONS: Self-reported measurements (made with or without help) are valid measures in epidemiological studies. Body silhouettes are simple and useful indicators of body mass index. However they should be interpreted with caution in certain instances, especially for overweight subjects.
检验当前人体测量自我报告值的有效性以及与误报相关的因素。
E3N是一项在法国进行的癌症风险因素前瞻性队列研究，也是欧洲癌症前瞻性调查的一部分。E3N包含100,000名出生于1925年至1950年之间的女性，自1990年起每18至24个月通过自我填写问卷进行随访。
152名女性用于自我报告人体测量的验证研究，91,815名女性被选来评估影响身体轮廓误报的因素。
采用配对t检验、Pearson和Spearman相关性分析来评估自我报告测量的有效性，采用方差分析和逻辑回归来评估影响轮廓误报的因素。
自我报告测量值与外部测量值之间的相关系数很高。除坐高（r = 0.56）外，其他所有指标的相关系数均超过0.80，体重和胸围（乳头处）测量的相关系数达到0.94。技术人员测量的体重指数（BMI）与自我报告的身体轮廓之间的相关性为0.78。身高较矮总是与分类错误相关。与对身体轮廓更有利看法相关的特定因素包括：超重、身高较矮、年龄较小和教育程度较低。这些女性也更常未婚、身体活动更多，并且在青春期时身材苗条。表示对体型看法较不利的结果则相反。
结论/应用：自我报告的测量值（无论有无帮助）在流行病学研究中是有效的测量方法。身体轮廓是体重指数简单而有用的指标。然而，在某些情况下应谨慎解释，特别是对于超重受试者。
