广州市城区中学新生家庭在外就餐的影响因素及其与超重肥胖的关联分析

Influencing factors of family eating out and its correlation with overweight and obesity among urban fresh middle school students in Guangzhou City

目的了解广州市城区中学新生家庭在外就餐情况及影响因素,并分析家庭在外就餐与学生超重肥胖的关系。方法 2016年6-11月对广州市城区初一和高一年级的8 806名学生及其家长进行调查,收集家庭在外就餐等资料。应用多因素logistic回归模型分析家庭在外就餐的影响因素及其与学生超重肥胖的关系。基于叉生分析法,评价家庭在外就餐与家庭因素的相乘和相加交互作用。结果广州市初一和高一学生家庭在外就餐大于或等于1次/周者分别占45.79%(2 430/5 307)和38.33%(1 341/3 499)。多因素分析显示,独生子女家庭结构、家庭人均月收入和父母文化程度均与初一和高一学生家庭在外就餐关联。与在外就餐小于1次/周的高一学生比较,家庭在外就餐大于或等于1次/周的高一学生超重肥胖的风险增加38%(调整优势比为1.38,95%可信区间1.14～1.67)。未观察到家庭在外就餐与家庭因素之间存在影响学生肥胖的交互作用。结论广州市城区中学新生家庭在外就餐情况较为普遍。独生子女家庭、家庭收入和父母文化程度可能影响中学新生的家庭在外就餐频次,且家庭在外就餐与高一学生超重肥胖关联。

Objective To understand the situation and the influencing factors of family eating out among fresh middle school students in urban areas of Guangzhou City,and to analyze the association between the family eating out and students′ overweight/obesity. Methods A total of 8 806 students from the grade 1 of junior and senior schools in Guangzhou City and their patriarches were investigated from June to November 2016.The data of family eating out were collected.The multivariate logistic regression model was applied to analyze the influencing factors of family eating out and their association with students′ overweight/obesity.The multiplicative and additive interactions between family eating out and family factors were evaluated based on the bifurcation analysis method. Results The proportions of family eating out ≥1 time per week for first-year junior and first-year senior school students were 45.79%(2 430/5 307) and 38.33%(1 341/3 499), respectively .The multivariate analysis showed that the single -child family structure,household monthly income per capita,and cultural level of students′ parents were correlated with the family eating out in first-year junior and first-year senior school students.Compared with the students of eating out <1 time per week,the risk of overweight/obesity in the first-year senior school students with family eating out ≥1 time per week was significant increased by 38%(adjusted OR was 1.38,95% CI 1.14-1.67).No interaction affecting students′ overweight and obesity was observed between family eating out and family factors. Conclusion Family eating out is common among urban fresh middle school students in Guangzhou City.The single-child family,household income per capita and highest cultural level of students′ parents possibly impact the family eating out frequency among fresh middle school students,moreover family eating out is correlated with the overweight and obesity in the fresh high school students.