Zhang Sheng, An Ruopeng
School of Sports Journalism and Foreign Studies, Shanghai University of Sport, Shanghai, China.
Department of Kinesiology and Community Health, College of Applied Health Sciences, University of Illinois at Urbana-Champaign, Champaign, IL.
Am J Health Behav. 2018 Mar 1;42(2):3-11. doi: 10.5993/AJHB.42.2.1.
We examined the impact of ambient air pollution on television use among residents in Shanghai, China.
Device-measured daily average duration of television use from January 2014 to December 2016 was obtained from a random sample of 300 households, and was matched to air pollution and weather data. We used an autoregressive moving-average model to estimate the association between air quality index (AQI) and television use.
There was a negative non-linear relationship between air pollution level and television use. Compared to the days when air quality was good (0≤AQI≤50), days with fair air quality (50<AQI≤100), light air pollution (100<AQI≤150), and moderate-to-severe air pollution (AQI>150) were associated with a reduction in daily average television use by 2.9 (p = .002), 4.6 (p < .001), and 1.9 (p = .369) minutes, respectively. Television use decreased with daytime temperature but increased on weekend days, holidays, and rainy days.
Modest but not more severe air pollution was associated with reduced television use. People might mitigate the detrimental impact of air pollution by engaging in other indoor activities and/or sleeping.
我们研究了中国上海地区环境空气污染对居民看电视时长的影响。
从300户家庭的随机样本中获取2014年1月至2016年12月期间通过设备测量的每日平均看电视时长，并将其与空气污染和气象数据进行匹配。我们使用自回归移动平均模型来估计空气质量指数（AQI）与看电视时长之间的关联。
空气污染水平与看电视时长之间存在负向非线性关系。与空气质量良好（0≤AQI≤50）的日子相比，空气质量尚可（50＜AQI≤100）、轻度空气污染（100＜AQI≤150）以及中度至重度空气污染（AQI＞150）的日子里，每日平均看电视时长分别减少了2.9分钟（p = 0.002）、4.6分钟（p ＜ 0.001）和1.9分钟（p = 0.369）。看电视时长随白天温度降低而减少，但在周末、节假日和雨天会增加。
轻度而非更严重的空气污染与看电视时长减少有关。人们可能通过参与其他室内活动和/或睡觉来减轻空气污染的不利影响。
