目的 了解小学生零食消费种类与营养状况之间的关系,为开展有针对性的营养教育活动提供依据。方法 采用随机整群抽样方法,对3所小学的426名小学生进行问卷调查和体格测量。结果 常吃“可经常食用”、“适当食用”、“限量食用”3类零食小学生消瘦检出率分别为4.2%、2.5%、1.0%,超重检出率分别为5.6%、9.9%、18.6%,肥胖检出率分别为5.6%、2.9%、11.8%。不同食用零食情况消瘦、正常、超重及肥胖检出率差异有统计学意义(χ²=20.595,P=0.002)。结论 应采取有效措施对小学生加强营养知识的宣传和饮食行为的正确引导。

Objective To investigate the association of snacks consumption with the nutrition status among children in primary school,and to provide basis for their nutrition education. Method A random cluster sample of the children in primary school received the questionnaire survey and physical examination. Results The prevalence of emaciation among children regularly consuming snacks of the "eligible to regular consumption","moderate to consumption" and "restrained to consumption",was 4.2%,2.5%,1.0%,respectively.The prevalence of over-weight in different snacks category groups were 5.6%,9.9%,18.6%,respectively.The prevalence of obesity in different snacks category groups were 5.6%,2.9%,11.8%,respectively.The differences in the check-up rate of emaciation,normal,over-weight and obesity due to different conditions of snack eating behavior were significant(χ²=20.595,P=0.002). Conclusion It is suggested that effective nutrition education activities should be implemented to make the students know more nutritional knowledge and take healthy dietary practices.