Abstract
宋月萍,胡曦元,龙修琛.免费营养午餐政策对农村青少年超重的影响——基于中国教育追踪调查初中队列数据[J].Chinese journal of Epidemiology,2022,43(6):885-891
免费营养午餐政策对农村青少年超重的影响——基于中国教育追踪调查初中队列数据
Influence of free nutrition lunch policy on overweight of rural adolescents: Based on China Education Panel Survey Junior High School Cohort data
Received:October 25, 2021  
DOI:10.3760/cma.j.cn112338-20211025-00821
KeyWord: 超重  免费营养午餐政策  农村  青少年
English Key Word: Overweight  Free nutrition lunch policy  Rural area  Adolescent
FundProject:中国人民大学公共健康与疾病预防控制跨学科交叉重大创新平台(2021PDPC)
Author NameAffiliationE-mail
Song Yueping School of Sociology and Population Studies, Renmin University of China, Beijing 100872, China
Institute of Health Sciences, Renmin University of China, Beijing 100872, China
Population Development Studies Center, Renmin University of China, Beijing 100872, China 
songyueping@ruc.edu.cn 
Hu Xiyuan Institute of Population Research, Peking University, Beijing 100871, China  
Long Xiuchen School of Sociology and Population Studies, Renmin University of China, Beijing 100872, China  
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Abstract:
      目的 分析免费营养午餐政策对农村青少年超重的影响。方法 基于2013-2016年中国教育追踪调查4期数据,以农村初中生为研究对象,利用logistic模型分析免费营养午餐政策对农村青少年超重的影响,最终纳入3 453名研究对象。结果 对于农业户口学生而言,初一开始接受免费午餐的青少年在初二和初中毕业后一年时发生超重的风险比不享有的青少年分别低35.8%(P<0.05)及31.6%(P<0.05),初二开始接受免费午餐的青少年在初三和初中毕业后一年时发生超重的风险比不享有的青少年分别低36.7%(P<0.05)及29.9%(P<0.05),而初三接受免费午餐的青少年其在初中毕业后一年时发生超重的风险与不享有的青少年相比,差异无统计学意义。相较于女生,男生更能从中受益。结论 总体而言免费营养午餐在较长期内都有助于降低学生超重可能性,且这一影响具有累积效应。这说明免费营养午餐政策对于促进青少年健康是行之有效的。
English Abstract:
      Objective To analyze the influence of the free nutritious lunch policy on the risk of overweight in rural adolescents in China. Methods Based on the data of China Education Panel Survey Junior High School Cohortfrom 2013 to 2016, this paper analyzes the influence of the policy on overweight risk in adolescents in rural China with logistic model, and a total of 3 453 rural teenagers were included. Results Adolescents who received free lunch in the first year of junior high school had a 35.8% (P<0.05) and 31.6% (P<0.05) lower risk of being overweight in the second year and one year after junior high school graduation than those who didn't. Also, adolescents who received free lunch in the second year of junior high school had a 36.7% (P<0.05) and 29.9% (P<0.05) lower risk of being overweight in the third grade and one year after graduation than those who didn't. There was no statistically significant difference in the risk of being overweight one year after the graduation between adolescents who received free lunch in third year and those who didn't. And boys benefited more from this policy than girls. Conclusions The free nutrition lunch policy has long term effect to reduce the likelihood of being overweight for adolescents, and the impact has a cumulative effect. This suggests that the free nutrition lunch policy is effective in promoting health of adolescents in terms of overweight.
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