Banach Alayna, Wade Terrance J, Cairney John, Hay John A, Faught Brent E, O'Leary Deborah D
Department of Community Health Sciences, Brock University, St. Catharines, ON.
Can J Public Health. 2007 Jul-Aug;98(4):251-3. doi: 10.1007/BF03405397.
There is mounting evidence that the prevalence of overweight and obesity in children is reaching epidemic proportions in North America. We compared parent-report vs. measured BMI overweight and obesity prevalence estimates among 9 year olds using the 1996 NLSCY reports published by Willms et al. (2003) and anthropometric measurements from a regional population of public school children.
Body mass index (BMI) was calculated for 1,497 9-year-old children (males N = 734; females N = 763) from 75 public schools in the Niagara Region of Ontario, Canada. BMI from the 1996 NLSCY was based on parental reports of height and weight of 879 nine year olds. To define overweight and obese children, we used internationally accepted age- and gender-specific cut-offs as defined by Cole et al. (2000).
The NLSCY overweight prevalence estimates of boys and girls may overestimate overweight boys and girls by 17% and 10%, respectively. Measured obesity prevalence estimates were similar to parent-reports.
Our results suggest that parental reports of height and weight may inflate prevalence estimates of overweight children, but appear reasonably accurate for estimating obesity. Since prevalence of overweight and obesity are often combined to form a global estimate, reliance on parent-reported height and weight may overstate the magnitude of the problem.
越来越多的证据表明，北美儿童超重和肥胖的患病率正达到流行程度。我们使用威尔姆斯等人（2003年）发表的1996年全国纵向儿童和青年调查（NLSCY）报告以及来自当地公立学校儿童群体的人体测量数据，比较了9岁儿童中家长报告的与测量得到的体重指数（BMI）超重和肥胖患病率估计值。
计算了来自加拿大安大略省尼亚加拉地区75所公立学校的1497名9岁儿童（男性n = 734；女性n = 763）的体重指数（BMI）。1996年全国纵向儿童和青年调查（NLSCY）中的BMI是基于879名9岁儿童家长报告的身高和体重得出的。为了定义超重和肥胖儿童，我们采用了科尔等人（2000年）定义的国际公认的年龄和性别特异性临界值。
全国纵向儿童和青年调查（NLSCY）中超重患病率估计值可能分别高估超重男孩和女孩17%和10%。测量得到的肥胖患病率估计值与家长报告的相似。
我们的结果表明，家长报告的身高和体重可能会夸大超重儿童的患病率估计值，但在估计肥胖方面似乎相当准确。由于超重和肥胖的患病率通常合并起来形成一个总体估计值，依赖家长报告的身高和体重可能会高估问题的严重程度。
