Kolbo Jerome R, Penman Alan D, Meyer Mary Kay, Speed Nancy M, Molaison Elaine Fontenot, Zhang Lei
The University of Southern Mississippi, Hattiesburg, Miss 39406, USA.
Prev Chronic Dis. 2006 Jul;3(3):A84. Epub 2006 Jun 15.
The purpose of the Child and Youth Prevalence of Overweight Survey was to estimate the prevalence of overweight and at risk for becoming overweight among children in Mississippi (grades 1-8) using height and weight measures instead of self-report and to compare the findings for grades 6 through 8 with data from the Youth Risk Behavior Surveillance System for middle school students (grades 6-8).
Students in randomly selected classes from 37 sampled elementary and middle schools throughout Mississippi participated in the study. School staff were trained to collect height and weight data using a standardized procedure.
Overall, 24.0% of students in grades 1 through 8 were found to be overweight, and another 14.7% were at risk for becoming overweight. With the exception of sixth grade, there was a trend of increasing prevalence of overweight by grade (17.5% in grade 1 compared with 31.3% in grade 8). In the Child and Youth Prevalence of Overweight Survey, 25.2% of students in grades 6 through 8 were found to be overweight, compared with 18.5% in the Youth Risk Behavior Surveillance System.
A high percentage of students in Mississippi are already overweight in first grade, and the prevalence tends to increase by grade. Data collected from middle school students through measured heights and weights in the Child and Youth Prevalence of Overweight Survey were higher than self-reported data from the Youth Risk Behavior Surveillance System. Our data suggest that self-reported data underestimate the prevalence of overweight among middle school students. Efforts to monitor students' body mass index and assess effectiveness of interventions should include all grades and use measured heights and weights rather than self-reports.
儿童与青少年超重患病率调查的目的是，使用身高和体重测量数据而非自我报告数据，估算密西西比州1至8年级儿童超重及有超重风险的患病率，并将6至8年级的调查结果与青少年风险行为监测系统（针对6至8年级中学生）的数据进行比较。
从密西西比州37所抽样小学和中学的随机选取班级中的学生参与了该研究。学校工作人员接受培训，采用标准化程序收集身高和体重数据。
总体而言，1至8年级学生中，24.0%被发现超重，另有14.7%有超重风险。除六年级外，各年级超重患病率呈上升趋势（一年级为17.5%，八年级为31.3%）。在儿童与青少年超重患病率调查中，6至8年级学生中25.2%被发现超重，而青少年风险行为监测系统中的这一比例为18.5%。
密西西比州一年级学生中已有很大比例超重，且患病率往往随年级升高。通过儿童与青少年超重患病率调查中测量身高和体重收集的中学生数据高于青少年风险行为监测系统的自我报告数据。我们的数据表明，自我报告数据低估了中学生超重的患病率。监测学生体重指数及评估干预措施有效性的工作应涵盖所有年级，并使用测量身高和体重数据而非自我报告数据。
