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目的通过对4所中学和8所小学学生的肥胖状况、家庭基本情况、饮食行为、营养知识和行为认知的调查，了解广州市城区学生肥胖的影响因素。方法采用问卷调查和体格检查结果登录，对数据进行不同性别、年级非条件logistic多元逐步回归分析。结果按“中国学生7－22岁身高标准体重值”评价，男学生肥胖率高于女学生，低年级高于高年级；先后16个因素进入不同数学模型，其中父母亲学历、宵夜、晚餐摄入量、零食对肥胖是危险因素；性别、年级、早餐、吃禽类、不爱吃零食、营养知识得分、行为认知为保护因素。结论中小学生肥胖与父母亲受教育程度、学生本人饮食行为、营养知识掌握和行为认知有关。
OBJECTIVE: To investigate the prevalence of obesity in urban area of Guangzhou and the prevalence of obesity in four primary schools and eight primary school students, family status, diet behavior, nutritional knowledge and behavioral cognition. Methods The questionnaire and physical examination results were used to log in. The data were analyzed by logistic multivariate stepwise logistic regression with different gender and grade. Results According to “Chinese students ’standard height and body weight from 7 to 22 years old”, the obesity rate of male students was higher than that of female students, while that of lower grades was higher than that of senior students. Sixteen factors entered different mathematical models, of which, parents’ education, supper and dinner Intake, snacks are risk factors for obesity; sex, grade, breakfast, eating poultry, not eating snacks, nutritional knowledge scores, behavioral awareness as a protective factor. Conclusions Primary and secondary school students ’obesity is related to their parents’ education level, their own eating behavior, nutritional knowledge and behavior cognition.