延边地区学龄儿童“膳食营养讲堂”干预效果评价

Evaluation on intervention effect of dietary nutrition lecture room among school age children in Yanbian area

目的 针对延边地区学龄儿童实施膳食营养讲堂,分析干预对学龄儿童营养知识、与膳食行为的影响。方法 以分层整群抽样方法选定延边地区两个县的各1所小学4年级的学生,随机分为干预组和对照组,对照组发放营养教材,干预组在对照组的基础上实施为期1个月的膳食营养讲堂干预,干预前、后使用自行设计问卷进行调查并收集资料。结果 干预组的营养知识（t=4.37,P〈0.05）和膳食行为（t=2.27,P〈0.05）在实施膳食营养干预后比对照组均有明显增加。膳食营养干预后,干预组每日摄入奶制品的人数显著多于对照组（χ~2=7.07,P〈0.05）。结论 膳食营养讲堂干预有效提高了学龄儿童的营养知识和膳食行为。

Objective To implement the dietary nutrition lecture room among school age children in Yanbian area and to ana- lyze the influence of the intervention on nutrition knowledge and dietary behaviors in school age children. Methods The pupils of the grade 4 were selected from each one primary school of 2 counties of Yanbian area by the stratified cluster sampling method and randomly divided into the intervention group and control group. Pupils in control group were distributed nutritional materials. On this basis, the intervention group was implemented the 1-month dietary nutrition intervention. The survey was performed before and after intervention by using the self-designed questionnaire. Results The nutritional knowledge and dietary behaviors after imple- menting the dietary nutrition intervention m the intervention group were significantly improved compared with the control group （t= 4, 37, t= 2.27, P〈0.05）. The number of students with＇daily dairy products uptake after dietary nutrition intervention in the in- tervention group was significantly improved compared with the control group（X^2=7.07, P= 0. 009）. Conclusion The intervention of dietary nutrition lecture room can effectively improve the nutrition knowledge and dietary behavior in school-age children.