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目的了解北京市中学生视屏时间现状及其影响因素,为制订切实有效的干预措施提供参考依据。方法采用横断面研究的方法,于2013年9—10月随机从北京市城区、近郊区、远郊区中各抽取2个区,每区随机抽取2所高中、2所初中,共对6个区24所学校1 126人进行问卷调查。结果被调查中学生调查前1周平均视屏时间为(1.44±1.50)h/d,视屏时间过长比例为20.5%。其中男生平均视屏时间为(1.60±1.73)h/d,高于女性(1.37±1.23)h/d(P<0.05),男性视屏时间过长率为23.2%,高于女生18.9%(P<0.05)。Logistic回归分析发现,和父母交流少(OR=1.975)、习惯使用网络交流(OR=1.258)、在网络上更被认同(OR=1.218)、习惯上网搜索答案(OR=1.293)是视屏时间长的危险因素;自感被同学理解(OR=0.824)、父母限制视屏时间(OR=0.791)为视屏时间长的保护因素(P值均<0.05)。结论电子屏幕设备在中学生中使用较多。中学生视屏时间受到社会支持水平影响,减少视屏时间需要家庭、学校多方面共同参与。
Objective To understand the status of middle school students’ screen time in Beijing and its influential factors, and to provide a reference for making effective interventions. Methods By means of cross-sectional study, from September to October in 2013, two districts were randomly selected from each of urban area, suburban area and suburban area in Beijing. Two high schools and two junior high schools were randomly selected in each district. A total of 6 districts A total of 1,126 students from 24 schools conducted a questionnaire survey. Results The average viewing time of middle school students before the survey was (1.44 ± 1.50) h / d and the viewing time was 20.5%. Among them, the average viewing time of boys was (1.60 ± 1.73) h / d, higher than that of females (1.37 ± 1.23) h / d (P <0.05) 0.05). Logistic regression analysis showed that there was less communication with parents (OR = 1.975), habitual use of internet communication (OR = 1.258) and more recognition on the internet (OR = 1.218) (OR = 0.824). Parental limit screen time (OR = 0.791) was a long-term protection factor (all P <0.05). Conclusion Electronic screen devices are used more often by middle school students. The secondary school students’ screen time is affected by the level of social support. Reducing the screen time requires the participation of families and schools in many aspects.