摘要：
目的 了解北京市成年居民的业余屏幕时间及其人群分布特征;方法 根据2014年北京市成人慢性病及危险因素监测中看电视时间、使用电脑时间和使用手机时间的相关数据,分析北京市成年居民业余屏幕时间的长短、构成和人群分布特征;结果 北京市成年居民业余屏幕时间标化后中位数是210 min,P25和P75分别为120 min和300 min;总业余屏幕时间占总业余时间的91.32％.业余屏幕时间中看电视时间的标化后中位数是90 min,使用电脑时间的标化后中位数是30 min,使用手机时间的标化后中位数是60 min,总看电视时间、总使用电脑时间和总使用手机时间分别占总业余屏幕时间的41.19％、25.76％和33.05％.男性(190 min)、18 ～44年龄组(240 min)、城区(210 min)、大学及以上(240 min)、未婚(270 min)和京籍(190 min)人群的业余屏幕时间较高.无论男女看电视时间所占比例都是最高(男性43.57％,女性46.24％);在年龄组方面,看电视时间所占比例随年龄增加而增大,使用电脑和手机的时间则随年龄增加而减少;在城郊方面,无论城区还是郊区,都是看电视时间所占比例最高(城区42.89％,郊区48.43％);在文化程度方面,随着文化程度的提高,看电视时间所占比例逐渐下降,而使用电脑和使用手机时间所占比例则逐渐上升;在婚姻状况方面,未婚人群使用手机时间所占比例最高(43.03％),在婚/同居和离异/丧偶/分居人群则是看电视时间所占比例最高(分别为49.10％和59.92％).结论 北京市成年人业余屏幕时间长,占总业余时间的比重大;不同人群业余屏幕时间分布差异较大.%Objective To explore the spare screen time and its distribution characteristics among adult residents in Beijing.Methods Data of leisure time on watching TV,using computer,and using smart phone from 2014 Beijing adult chronic diseases and risk factors surveillance were analyzed.Spare time length of screen,composition and characteristics of population distribution among adult residents in Beijing were described.Results The standardized median of adult residents spare screen time was 210 minutes,as well as its P25 and P75 were 120 minutes and 300 minutes,respectively.Total spare screen time was accounted for 91.32％ of total spare time.The standardized median of TV screen time,computer time,and smart phone time were 90 minutes,30 minutes and 60 minutes separately.Sum of TV screen time,computer time,and smart phone time were accounted for 41.19％,25.76％ and 33.05％ of total spare screen time,respectively.Spare screen time in male (190 minutes),group aged 18-44 years old (240 minutes),urban residents (210 minutes),group with college educated and over (240 minutes),unmarried (270 minutes) and local residents (190 minutes) were longer than others.The proportions of TV screen time in men and women were the highest (male 43.57％,female 46.24％).In terms of age group,the proportions of TV screen time were increased with the increasing of age,while the proportions of time on using computers and mobile phones were decreased with the increasing of age.As to different region,the highest proportions of spare time were watching TV both in urban and suburb (42.89％ in urban,48.43％ in suburb).As to educated level,the proportions of TV time were gradually declined with the raise of educational level,while the proportion of time on using computers and cell phones were rising.In terms of marital status,the highest proportion was using mobile phone (43.03％) in unmarried people,while the highest proportions in marriage and divorced/widowed/separated population were TV time (49.10％ and 59.92％,respectively).Conclusion The spare screen time of adult residents in Beijing is long,and it accounts for the major ratio of total spare time.The different distribution of spare screen tinein various characteristic groups isdistinct.
