Self-reported weight and height - Implications for obesity research

被引:217
|
作者
Nawaz, H
Chan, W
Abdulrahman, M
Larson, D
Katz, DL
机构
[1] Yal Griffin Prevent Res Ctr, Derby, CT 06418 USA
[2] Yale Univ, Sch Med, New Haven, CT USA
关键词
body mass index; body weight changes; weight perception; weight loss;
D O I
10.1016/S0749-3797(01)00293-8
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
Background: Self-reported weight and height are under- and over-reported, respectively, in epidemiologic studies. This tendency, which may adversely affect study operations, has not been evaluated among subjects being enrolled into a weight-loss program. Methods: Self-reported weight, height, and body mass index (BMI) were compared to measured values in 91 overweight or obese (BMI>27.3) women being enrolled into a randomized, controlled trial of two behavioral interventions for weight loss. The effects of demographic factors, baseline weight, baseline height, and baseline BMI on weight and height reporting were assessed. Results: There was a significant difference between measured and reported weight (mean difference= -3.75 lb, p=0.0001) and height (mean difference= +0.35 in., p=0.0007). The mean difference between measured and reported BMI was -1.14 kg/m(2) (p=0.0001). Unemployed, retired? or disabled women were more likely to under-report their BMI than employed women (p=0.001). Six percent of subjects who were initially considered eligible for the study on the basis of the self-report were eventually excluded from the study because they did not meet the inclusion criterion for BMI. Conclusions: Obese women who seek weight-loss assistance tend to under-report their weight and over-report their height, suggesting that self-reported data are likely to be inaccurate. Misreporting is apparently influenced by employment and disability and has the potential to complicate recruitment of subjects for research studies.
引用
收藏
页码:294 / 298
页数:5
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