成年网民互联网使用与体质量指数相关性研究

Correlation between internet use and body mass index amongadult netizens

目的 探讨成年网民互联网使用行为与体质量指数(body mass index, BMI)的相关性,为改善人群超重肥胖提供参考依据。方法 利用中国家庭追踪调查(China Family Panel Studies,CFPS) 2020年调查数据,对成年网民互联网使用行为及BMI情况进行描述性分析,并应用多元分层回归探讨成年网民互联网使用行为与BMI的相关性。结果 共调查成年网民13 585名,BMI为(23.21±3.50) kg/m^(2),是否网上购物、是否玩网络游戏、是否看短视频、是否网络学习的成年网民BMI差异有统计学意义(t=67.631、132.461、239.453、65.794,P<0.05)。多元分层回归结果显示,玩网络游戏、看短视频、移动设备上网时长与成年网民BMI增长成正相关(β=0.036、0.034、0.033,t=4.083、4.098、3.592,P<0.05);进行网络学习与网民BMI增长成负相关(β=-0.026,t=-2.961,P<0.05)。结论 成年网民互联网使用与BMI存在相关性,互联网使用行为通过影响成年网民的生活方式而间接影响网民的BMI。

Objective To explore the correlation between adult Internet users’Internet use behavior and their body mass index(BMI),so as to provide evidence for controlling overweight and obesity in the population.Methods Using the survey data of China Family Panel Studies(CFPS)in 2020,the Internet use behavior and BMI of adult netizens were described.Multiple stratified regression was applied to explore the correlation between Internet use behavior and BMI within this population.Results A total of 13585 adult Internet users were surveyed,whose mean BMI was(23.21±3.50)kg/m2.The BMI level was statistically significantly different between adult netizen groups by online shopping behavior(yes versus no),by online game-playing(yes versus),by short video-watching(yes versus no),and by studying online(yes versus no)(t=67.631,132.461,239.453,65.794,P<0.05).Multiple stratified regression showed that playing online games,watching short videos and the length of time spent online using mobile devices were positively correlated with the growth of adult Internet users’BMI(β=0.036,0.034,0.033,t=4.083,4.098,3.592,P<0.05),while studying online was negatively correlated with the growth of adult netizens’BMI(β=−0.026,t=−2.961,P<0.05).Conclusions There is a correlation between adult Internet users'Internet use behavior and body mass index,in that Internet use behavior influences adult netizens’lifestyle,thereby indirectly affecting their BMI.