Bias in height and weight reported by Swedish adolescents and relations to body dissatisfaction: the COMPASS study
Bias in height and weight reported by Swedish adolescents and relations to body dissatisfaction: the COMPASS study
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DOI：
10.1038/sj.ejcn.1602595
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发表时间：
2007-07-01
影响因子：
4.7
通讯作者：
Nordquist, T.
中科院分区：
文献类型：
--
作者：
Rasmussen, F.;Eriksson, M.;Nordquist, T.
目的：为了评估偏差的大小，在自我报告的身高，体重在一个大样本的青少年，特别注意身体不满的可能影响，并评估这种偏差如何可能影响超重和肥胖的估计。设计：横断面研究。设置：未经选择的人口从西南部的部分斯德哥尔摩县，瑞典。主题：2726名男孩和女孩，15岁。方法：通过青少年回答的问卷调查和经过培训的研究护士进行的体格检查收集数据。一个有效的物理外观规模和身体轮廓嵌入到questionnaire.Results：肥胖男孩少报他们的体重（5.2公斤）（95%置信区间（CI）3.7; 6.6）比肥胖女孩（3.8公斤）（95% CI 1.8; 5.8）。自我报告和测量的体重指数（BMI）-类别（肥胖、超重和非超重/肥胖）之间的一致性（通过加权Kappa估计）为0.77（95% CI 0.72; 0.82）（女孩）和0.74（95% CI 0.70; 0.79）（男孩）。对于肥胖女孩和男孩，自我报告的敏感性分别为0.65（95%CI 0.47; 0.79）和0.52（95%CI 0.38; 0.66）。在身体外观量表上得分低的男孩比得分高的男孩更少报告他们的体重和BMI。结论：35%的肥胖女孩和48%的肥胖男孩在自我报告的数据中未被发现。对自己的外表或体型不满意的男孩和女孩比满意的受试者更少报告自己的体重。
Objective: To assess the size of biases in self-reported height, weight in a large sample of adolescents with special attention to possible effects of body dissatisfaction and to assess how such biases may influence estimates of overweight and obesity.Design: Cross-sectional study.Setting: Unselected population from Southwestern parts of Stockholm County, Sweden.Subjects: Two-thousand seven hundred and twenty-six boys and girls, 15 years of age.Methods: Data were collected by a questionnaire answered by adolescents and a physical examination made by trained study nurses. A validated physical appearance scale and body silhouettes were embedded into the questionnaire.Results: Obese boys under-reported their weight (5.2 kg) (95% confidence intervals (CI) 3.7; 6.6) more than obese girls (3.8 kg) (95% CI 1.8; 5.8). Agreement between self-reported and measured body mass index (BMI)-categories ( obese, overweight and non-overweight/obese) as estimated by weighted kappa was 0.77 (95% CI 0.72; 0.82) for girls and 0.74 (95% CI 0.70; 0.79) for boys. For obese girls and boys sensitivity of self-reports were 0.65 (95% CI 0.47; 0.79) and 0.52 (95% CI 0.38; 0.66). Boys with low scores on the physical appearance scale under-reported their weight and BMI more than those with high scores. Boys and girls who wished to be leaner under-reported their weight and BMI more than subjects who were satisfied with their body size (P < 0.05).Conclusion: Thirty-five percent of obese girls and 48% of obese boys would remain undetected from self-reported data. Boys and girls who were dissatisfied with their physical appearance or size under-reported their weight more than satisfied subjects.