Jansen W, van de Looij-Jansen P M, Ferreira I, de Wilde E J, Brug J
Municipal Health Service for Rotterdam area, Erasmus Medical Centre, Rotterdam, The Netherlands.
Ann Nutr Metab. 2006;50(4):339-46. doi: 10.1159/000094297. Epub 2006 Jun 28.
BACKGROUND/AIMS: Monitoring overweight prevalence and its trends in Dutch youth is frequently based on self-reported data. The validity of self-reported data especially in young adolescents is not sufficiently known. The purpose of this study is to study the validity of self-reported height and weight in 12- to 13-year-olds, to identify sociodemographic correlates and to explore whether correction factors can be developed to estimate the prevalence of overweight in youth.
5,525 12- to 13-year-old pupils in the Rotterdam area filled in a confidential questionnaire on health topics, including their height and weight. In a sub-sample of 499 pupils both self-reported and measured height and weight were available.
Self-reported data led to a considerable underestimation of Body Mass Index and consequently the prevalence of overweight. Underestimation was higher in pupils who regarded themselves as more fat, were of non-Dutch origin and in lower education levels.
Self-reported height and weight appeared to be inappropriate to estimate the overweight prevalence in 12- to 13-year-olds, unless the figures were adjusted. Using adjusted self-reported BMI on an individual level is questionable. Actual measurements of height and weight are necessary to draw up valid correction formulas in new samples.
背景/目的：荷兰青少年超重患病率及其趋势的监测通常基于自我报告的数据。自我报告数据的有效性，尤其是在青少年中的有效性，尚未得到充分了解。本研究的目的是研究12至13岁青少年自我报告的身高和体重的有效性，确定社会人口统计学相关因素，并探讨是否可以制定校正因子来估计青少年超重的患病率。
鹿特丹地区5525名12至13岁的学生填写了一份关于健康主题的保密问卷，包括他们的身高和体重。在499名学生的子样本中，既有自我报告的身高和体重，也有测量的身高和体重。
自我报告的数据导致对体重指数以及超重患病率的严重低估。那些认为自己更胖、非荷兰裔以及教育水平较低的学生中，低估情况更为严重。
自我报告的身高和体重似乎不适用于估计12至13岁青少年的超重患病率，除非对数据进行调整。在个体层面使用调整后的自我报告体重指数存在疑问。要在新样本中制定有效的校正公式，实际测量身高和体重是必要的。
