Bekkers Marga B M, Brunekreef Bert, Scholtens Salome, Kerkhof Marjan, Smit Henriëtte A, Wijga Alet H
Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.
Int J Pediatr Obes. 2011 Jun;6(2-2):e78-86. doi: 10.3109/17477166.2010.490266. Epub 2010 Oct 1.
Most epidemiological, questionnaire-based studies collect data on body weight and height but not on waist circumference (WC), although WC is suggested to be clinically more relevant. It is unknown whether valid WC data of school-aged children can be obtained by questionnaires. In this study the agreement between parental reported and measured WC in 8-year-old children was investigated and compared with the agreement between parental reported and measured body mass index (BMI).
Data on body weight, height, and WC of 1 292 8-year-old Dutch children were collected by a medical examination and a questionnaire. Mean differences, correlations and misclassification based on parental reported values were calculated.
Mean differences between parental reported and measured values were small. Pearson correlation coefficient for measured and reported WC was 0.83 compared with 0.90 for measured and reported BMI. Parents of children with a high BMI tended to underreport their child's WC and body weight. A total of 22.7% of overweight children were misclassified as being normal weight based on reported WC compared with measured WC. For BMI this applied to 23.7% of children.
Parental reported waist circumference corresponded well with measured values, indicating that reported waist circumference can be used to study associations between waist circumference and risk factors or health outcomes.
大多数基于问卷调查的流行病学研究收集体重和身高数据，但不收集腰围（WC）数据，尽管腰围在临床上被认为更具相关性。目前尚不清楚通过问卷调查能否获得学龄儿童有效的腰围数据。在本研究中，对8岁儿童家长报告的腰围与测量的腰围之间的一致性进行了调查，并与家长报告的体重指数（BMI）与测量的BMI之间的一致性进行了比较。
通过医学检查和问卷调查收集了1292名8岁荷兰儿童的体重、身高和腰围数据。计算了基于家长报告值的平均差异、相关性和错误分类情况。
家长报告值与测量值之间的平均差异较小。测量的腰围与报告的腰围之间的Pearson相关系数为0.83，而测量的BMI与报告的BMI之间的相关系数为0.90。BMI较高的儿童家长往往少报孩子的腰围和体重。根据报告的腰围与测量的腰围相比，共有22.7%的超重儿童被误分类为正常体重。对于BMI，这一比例适用于23.7%的儿童。
家长报告的腰围与测量值吻合良好，表明报告的腰围可用于研究腰围与危险因素或健康结局之间的关联。
