Wada K, Tamakoshi K, Tsunekawa T, Otsuka R, Zhang H, Murata C, Nagasawa N, Matsushita K, Sugiura K, Yatsuya H, Toyoshima H
Department of Public Health/Health Information Dynamics, Program in Health and Community Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Int J Obes (Lond). 2005 Sep;29(9):1093-9. doi: 10.1038/sj.ijo.0803012.
To assess the validity of self-reported height and weight in a Japanese workplace population, and to examine factors associated with the validity of self-reported weight.
Comparison of self-reported height and weight with independent measurement.
In total, 4253 men and 1148 women aged 35-64 y (mean measured body mass index (BMI): 23.3 kg/m(2) in men, 21.9 kg/m(2) in women) were included in the study.
Self-reported height and weight were obtained by a self-administered questionnaire. Measured height and weight were based on annual health checkups. Sex, age, measured BMI, and the presence of hypertension, diabetes, and hyperlipidemia were examined as potential factors associated with the accuracy of self-reported weight.
Self-reported height and weight were highly correlated with measured height and weight for men and women (Pearson's r for men and women: 0.979 and 0.988 in height, 0.961 and 0.959 in weight, 0.943 and 0.950 in BMI, respectively). For men, mean differences+/-2 s.d. of height and weight were 0.078+/-2.324 cm and -0.034+/-5.012 kg, respectively, and for women 0.029+/-1.652 cm and 0.024+/-4.192 kg, respectively. The prevalence of obesity with BMI > or =25 kg/m(2) based on self-reported data (23.6 and 11.5% for men and women, respectively) was slightly smaller than that based on measured data (24.9 and 12.4%, respectively). Specificity and sensitivity, however, were quite high for both men and women (sensitivity was 85.8 and 85.2%, and specificity was 97.0 and 98.9%, respectively). The subjects with higher measured BMI significantly underestimated their weight compared with those with smaller BMI after adjustments for age in men and women. Furthermore, the presence of diabetes in men and age in women affected self-reported weight. Neither the presence of hypertension nor hyperlipidemia was associated with reporting bias.
The self-reported height and weight were generally reliable in the middle-aged employed Japanese men and women. However, it should be remembered that self-reported weight was biased by actual BMI and affected by age and the presence of diabetes.
评估日本职场人群中自我报告的身高和体重的有效性，并探讨与自我报告体重有效性相关的因素。
将自我报告的身高和体重与独立测量值进行比较。
共有4253名年龄在35 - 64岁的男性和1148名女性纳入研究（男性平均测量体重指数（BMI）：23.3kg/m²，女性为21.9kg/m²）。
通过自填问卷获取自我报告的身高和体重。测量的身高和体重基于年度健康检查。将性别、年龄、测量的BMI以及高血压、糖尿病和高脂血症的存在情况作为与自我报告体重准确性相关的潜在因素进行研究。
男性和女性自我报告的身高和体重与测量的身高和体重高度相关（男性和女性身高的Pearson相关系数r分别为0.979和0.988，体重分别为0.961和0.959，BMI分别为0.943和0.950）。男性身高和体重的平均差异±2标准差分别为0.078±2.324cm和 - 0.034±5.012kg，女性分别为0.029±1.652cm和0.024±4.192kg。基于自我报告数据，BMI≥25kg/m²的肥胖患病率（男性和女性分别为23.6%和11.5%）略低于基于测量数据的患病率（分别为24.9%和12.4%）。然而，男性和女性的特异性和敏感性都相当高（敏感性分别为85.8%和85.2%，特异性分别为97.0%和98.9%）。在对男性和女性的年龄进行调整后，与BMI较小的受试者相比，测量BMI较高的受试者显著低估了他们的体重。此外，男性的糖尿病存在情况和女性的年龄会影响自我报告的体重。高血压和高脂血症的存在均与报告偏差无关。
在日本中年在职男性和女性中，自我报告的身高和体重总体上是可靠的。然而，应记住自我报告的体重受实际BMI的影响，并受年龄和糖尿病存在情况的影响。
