Impact of ambient fine particulate matter air pollution on health behaviors: a longitudinal study of university students in Beijing, China
Impact of ambient fine particulate matter air pollution on health behaviors: a longitudinal study of university students in Beijing, China
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DOI：
10.1016/j.puhe.2018.02.007
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发表时间：
2018-06-01
期刊：
影响因子：
5.2
通讯作者：
Yu, H.
中科院分区：
文献类型：
--
作者：
An, R.;Yu, H.
目的：空气质量差已成为中国的一个国家公共卫生问题。本研究探讨了北京市大气细颗粒物（PM2.5）污染对大学生健康行为的影响。研究设计：前瞻性队列研究。2012-2015年期间，清华大学对12,000名新入学的学生进行了多次健康调查。进行线性个体固定效应回归，以估计环境PM2.5浓度对调查参与者健康行为的影响，调整各种随时间变化的个体特征和环境措施。研究发现，环境PM2.5浓度与上周步行、剧烈体育活动和久坐行为所花费的时间呈负相关，但与调查参与者的夜间/白天睡眠时间呈正相关。环境PM2.5浓度增加一个标准差（36.5 mg/m3）与每周步行总分钟数减少7.3（95%置信区间[CI] = 5.3-9.4），每周剧烈体力活动的总分钟数减少10.1（95% CI = 8.5-11.7），每日平均久坐时间减少0.06（95% CI = 0.02-0.10），但夜间/白天睡眠的日平均小时数增加1.07结论：PM2.5空气污染与大学生体力活动水平呈负相关，与睡眠时间呈正相关。未来的研究有必要在中国其他城市和大学复制研究结果，迫切需要政策干预来降低中国城市地区的空气污染水平。(C)2018年皇家公共卫生学会。由爱思唯尔有限公司出版。保留所有权利。
Objectives: Poor air quality has become a national public health concern in China. This study examines the impact of ambient fine particulate matter (PM2.5) air pollution on health behaviors among college students in Beijing, China. Study design: Prospective cohort study.Methods: Health surveys were repeatedly administered among 12,000 newly admitted students at Tsinghua University during 2012-2015 over their freshman year. Linear individual fixed-effect regressions were performed to estimate the impacts of ambient PM2.5 concentration on health behaviors among survey participants, adjusting for various time-variant individual characteristics and environmental measures.Results: Ambient PM2.5 concentration was found to be negatively associated with time spent on walking, vigorous physical activity and sedentary behavior in the last week, but positively associated with time spent on nighttime/daytime sleep among survey participants. An increase in the ambient PM2.5 concentration by one standard deviation (36.5 mg/m(3)) was associated with a reduction in weekly total minutes of walking by 7.3 (95% confidence interval [CI] = 5.3-9.4), a reduction in weekly total minutes of vigorous physical activity by 10.1 (95% CI = 8.5-11.7), a reduction in daily average hours of sedentary behavior by 0.06 (95% CI = 0.02-0.10) but an increase in daily average hours of nighttime/daytime sleep by 1.07 (95% CI = 1.04-1.11).Conclusions: Ambient PM2.5 air pollution was inversely associated with physical activity level but positively associated with sleep duration among college students. Future studies are warranted to replicate study findings in other Chinese cities and universities, and policy interventions are urgently called to reduce air pollution level in China's urban areas. (C) 2018 The Royal Society for Public Health. Published by Elsevier Ltd. All rights reserved.