应用广义估计方程评估儿童肥胖综合干预效果

摘要

目的 评估儿童肥胖综合干预项目在控制儿童超重/肥胖及改善儿童肥胖相关知识-态度-行为的效果,为制定儿童肥胖干预措施提供依据.方法 通过整群随机对照实验设计并采用广义估计方程模型对儿童肥胖相关重复测量数据进行统计分析.结果 实验组965人,对照组895人.实验组的学生从正常体重发展为超重/肥胖的风险是对照组学生的0.824倍,即干预措施降低了17.6％成为超重/肥胖的风险(P=0.031).此外,实验组学生肥胖相关知识正确率的均值提高一个单位的可能性是对照组学生的1.044倍(P=0.001);实验组学生肥胖相关正确态度率的均值提高一个单位的可能性是对照组学生的1.023倍(P=0.001);实验组学生肥胖相关行为的均值提高一个单位的可能性是对照组学生的1.522倍(P=0.046).结论 基于知识-态度-行为模式建立的针对儿童肥胖的干预措施可有效降低正常体重儿童发展为超重/肥胖的风险,并在改善儿童肥胖相关知识-态度-行为方面呈现一定的效果.%Objective To evaluate the effect of child obesity intervention comprehensive program on the improvement of overweight,obese control and knowledge-attitude-practice.Methods The study design was under cluster-randomized controlled trial,with 965 children in the intervention and 895 children in the control groups.Repeated measurement data on child obesity was analyzed through Generalized Estimating Equation models.Results The risk of becoming overweight or obesity in the intervention group was 0.824 times more than children in the control group,showing a reduction of 17.6％ the risk of being overweight or obese (P=0.031).In addition,the possibility of increasing one unit of correct rate on obesity related knowledge,children in the intervention group children was 1.044 times (P=0.001) than in the control group.On the mean obesity related correct attitude rate,it was 1.023 times (P=0.001) in the intervention group of the control group.Regarding the possibility of increasing one unit om the mean obesity related behavior score,children in the intervention group was 1.522 times (P=0.001) than those in the control group (P=0.046).Conclusion The comprehensive child obesity intervention program could effectively reduce the risk of developing overweight or obeseity and improving the obesity related knowledge,attitude and behavior in children.