The validity of obesity based on self-reported weight and height:: Implications for population studies
The validity of obesity based on self-reported weight and height:: Implications for population studies
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DOI：
10.1038/oby.2007.536
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发表时间：
2007-01-01
期刊：
影响因子：
6.9
通讯作者：
Lindblad, Ulf
中科院分区：
文献类型：
--
作者：
Nyholm, Maria;Gullberg, Bo;Lindblad, Ulf
目的：验证成年人群中关于体重和身高的自我报告信息，并寻找一种有用的算法来评估基于自我报告信息的肥胖患病率。研究方法和程序：这是一项由1703名参与者(男860名，女843名，年龄30-75岁)于2001年至2003年在瑞典瓦拉社区进行的横断面调查。将自我报告的体重、身高和相应的BMI与测量数据进行比较。肥胖定义为测量的BMI=30 kg/m(2)。结果：男性测量体重与自我报告体重的平均差异为1.6 kg(95%可信区间为1.4；1.8)，女性为1.8 kg(1.6；2.0)(测量值较高)，身高男性为-0.3 cm(-0.5；-0.2)，女性为-0.4 cm(-0.5；-0.2)(测量值较低)。年龄和体型是男性和女性错误报告身高、体重和BMI的重要因素。156名男性(19%)和184名女性(25%)肥胖(测量)，114名男性(14%)和153名女性(20%)的自我报告数据。对于自我报告的数据，肥胖的敏感度男性为70%，女性为82%，当校正后的自我报告数据和年龄调整后，它分别上升到81%和90%，而特异度从两性的99%下降到男性的97%和女性的98%。讨论：如果使用调整了预测错误报告的变量的算法，可以更准确地估计基于自我报告的BMI的肥胖率。
Objective: To validate self-reported information on weight and height in an adult population and to find a useful algorithm to assess the prevalence of obesity based on self-reported information.Research Methods and Procedures: This was a crosssectional survey consisting of 1703 participants (860 men and 843 women, 30 to 75 years old) conducted in the community of Vara, Sweden, from 2001 to 2003. Self-reported weight, height, and corresponding BMI were compared with measured data. Obesity was defined as measured BMI >= 30 kg/m(2). Information on education, self-rated health, smoking habits, and physical activity during leisure time was collected by a self-administered questionnaire.Results: Mean differences between measured and self-reported weight were 1.6 kg (95% confidence interval, 1.4; 1.8) in men and 1.8 kg (1.6; 2.0) in women (measured higher), whereas corresponding differences in height were -0.3 cm (-0.5; -0.2) in men and -0.4 cm (-0.5; -0.2) in women (measured lower). Age and body size were important factors for misreporting height, weight, and BMI in both men and women. Obesity (measured) was found in 156 men (19%) and 184 women (25%) and with self-reported data in 114 men (14%) and 153 women (20%). For self-reported data, the sensitivity of obesity was 70% in men and 82% in women, and when adjusted for corrected self-reported data and age, it increased to 81 % and 90%, whereas the specificity decreased from 99% in both sexes to 97% in men and 98% in women.Discussion: The prevalence of obesity based on self-reported BMI can be estimated more accurately when using an algorithm adjusted for variables that are predictive for misreporting.