Cancer Epidemiology Branch, National Cancer Center, Goyang-si, Gyeonggi-do, Korea.
J Epidemiol. 2011;21(1):30-6. doi: 10.2188/jea.je20100058. Epub 2010 Oct 9.
Accessible public information on self-reported height and weight is not widely used in studies of obesity, mainly because of the questionable validity of body mass index (BMI) values calculated from these data. To assess the utility of self-reported measurement, we compared self-reported and standard measurements of height and weight in a Korean population that is leaner than Western populations.
A cross-sectional comparison of self-reported and measured height and weight was conducted among a population of participants in a cancer screening program. A total of 557 men and 1010 women aged 30 to 70 years were included in the current analysis.
Self-reported height was higher than measured values in both men and women. Self-reported weight was higher than measured weight in women, but was not different in men. BMI calculated from measured values was higher than BMI derived from self-reported height and weight among men. Younger age was a predictor of accuracy in self-reported height, and higher weight and BMI were predictors of under-reporting of weight. The prevalence of obesity based on self-reported values was lower than the true prevalence of obesity. With respect to classifying individuals as obese, the specificity and sensitivity of BMI calculated from self-reported values were very high for both sexes.
Self-reported height and weight were reasonably valid in this study population.
可获取的关于自我报告的身高和体重的公共信息在肥胖研究中并未得到广泛应用，主要是因为基于这些数据计算的体重指数（BMI）值的有效性值得怀疑。为了评估自我报告测量的实用性，我们比较了在人群中更瘦的韩国人群中自我报告的和标准的身高和体重测量值，该人群比西方人群更瘦。
在癌症筛查计划的参与者人群中进行了自我报告和测量的身高和体重的横断面比较。目前的分析共纳入了 30 至 70 岁的 557 名男性和 1010 名女性。
在男性和女性中，自我报告的身高均高于测量值。在女性中，自我报告的体重高于测量体重，但在男性中则没有差异。与从自我报告的身高和体重计算得出的 BMI 相比，从测量值计算得出的 BMI 在男性中更高。年龄较轻是自我报告身高准确性的预测因素，体重和 BMI 较高是体重报告不足的预测因素。基于自我报告值的肥胖患病率低于肥胖的真实患病率。就将个体分类为肥胖而言，基于自我报告值计算的 BMI 对两性的特异性和敏感性都非常高。
在本研究人群中，自我报告的身高和体重具有相当的有效性。
