学龄儿童青少年闲暇视屏时间与超重肥胖的相关性  

Sedentary behavior and its association with obesity among school-aged children

作　　者：王楠[1] 吴旭龙[1] 丁子尧 李榴柏[1] 

机构地区：[1]北京大学公共卫生学院妇女与儿童青少年卫生学系,北京大学儿童青少年卫生研究所,北京100191

出　　处：《中国学校卫生》2016年第11期1604-1606,1610,共4页Chinese Journal of School Health

基　　金：2012年北京市教育科学十二·五优先关注课题项目(AAA12011)

摘　　要：目的了解儿童青少年视屏时间现状及其与超重肥胖的关系,为肥胖预防和干预提供科学依据。方法采取随机整群抽样方法,从北京市、湖南省和宁夏回族自治区整群抽取20所县/市城区中、小学校,对入选的4 164名学生计算体质量指数（BMI）,并进行自填式问卷调查。结果学生的平均视屏时间为（108.1±84.6）min/d,工作日和休息日视屏时间分别为（65.9±87.0）min/d、（215.0±130.1）min/d;休息日视屏时间男生[（222.3±132.0）min/d]高于女生[（206.8±127.5）min/d]、中学生[（224.9±132.4）min/d]高于小学生[（194.7±122.8）min/d]、农村学生[（224.8±134.7）min/d]高于城市学生[（211.8±128.4）min/d]（t值分别为3.810,-6.830,-2.652,P值均〈0.05）;工作日视屏时间组间差异均无统计学意义（P值均〉0.05）。控制年龄、性别、家庭经济状况、膳食情况、体力活动等协变量后,Logistic回归分析发现,休息日每天视屏时间超过2 h是儿童青少年超重、肥胖的独立危险因素（OR=1.38,95%CI=1.11~1.72;OR=1.25,95%CI=1.00~1.56）。结论视屏时间过长可能增加儿童青少年超重肥胖的风险。Objective To describe the status of sedentary behavior（ screen time） and explore its association with overweight and obesity among Chinese school-aged children, and to provide scientific references for the prevention and intervention of obesity. Methods A total of 4 164 students were selected from 20 primary and secondary schools in Beijing, Hunan and Ningxia urban and suburban areas by convenience sampling（ class as unit）. Physical examination was carried out to measure students＇ height and weight. Meanwhile, the information of time spent on leisure time sedentary behavior was collected by a self-administered structured questionnaire. Screen time was collected with a frequency of a 30-minute interval; the consumption of food and physical activities were collected by asking questions about frequency. Frequencies and portion size of the consumption of some food groups（ fruits, vegetables, milk, meat, nuts and whole grains） and the usual participation of moderate-to-vigorous physical activity were measured as covariables. By adjusting the covariant including age, gender, social-economic status（ SES）, diet and physical activity behaviors,logistic regression was used to analyze the association of screen time with children＇ s overweight and obesity. Results The average screen time of 4 164 schoolchildren was 108.1± 84.6 min / day and there was a significant difference between weekday（ 65.9±87.0 min / d） and weekend（ 215.0±130.1 min / d）（ P〈0.05）. During weekends, the screen time of boys（ 222.3±132.0 min / d）was longer than that of girls（ 206.8±127.5 min / d）（ P〈0.05）, the screen time of secondary school students（ 224. 9± 132.4 min / d）was longer than that of primary school students（ 194. 7 ± 122. 8 min / d）（ P〈0.05）, and the screen time of students in rural areas（ 224. 8±134. 7 min / d） was longer than that of students in urban areas（ 211.8±128.4 min / d）（ t = 3.810,-6.830,-2.652,P〈0.05）.There are no significant differences of screen

关 键 词：闲暇活动 超重 肥胖症 回归分析 儿童 

分 类 号：R195[医药卫生—卫生统计学] R723.14[医药卫生—卫生事业管理]