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学科主题: 公共卫生
题名:
Temperature, traffic-related air pollution, and heart rate variability in a panel of healthy adults
作者: Wu, Shaowei1; Deng, Furong1; Liu, Youcheng2; Shima, Masayuki3; Niu, Jie4; Huang, Qinsheng4; Guo, Xinbiao1
关键词: Air pollution ; Cardiac autonomic function ; Cardiovascular disease ; Heart rate variability ; Temperature
刊名: ENVIRONMENTAL RESEARCH
发表日期: 2013
DOI: 10.1016/j.envres.2012.08.008
卷: 120, 页:82-89
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Environmental Sciences ; Public, Environmental & Occupational Health
研究领域[WOS]: Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
关键词[WOS]: ELDERLY SUBJECTS ; BLOOD-PRESSURE ; AMBIENT-TEMPERATURE ; FINE PARTICULATE ; MORTALITY ; EXPOSURE ; DISEASE ; INFLAMMATION ; ASSOCIATION ; POPULATION
英文摘要:

Background: Both ambient temperature and air pollution have been associated with alterations in cardiac autonomic function, but the responsive patterns associated with temperature exposure and the interactive effects of temperature and air pollution remain largely unclear.

Objectives: We investigated the associations between personal temperature exposure and cardiac autonomic function as reflected by heart rate variability (HRV) in a panel of 14 healthy taxi drivers in the context of traffic-related air pollution.

Methods: We collected real-time data on study subjects′ in-car exposures to temperature and traffic-related air pollutants including particulate matter with an aerodynamic diameter <= 2.5 mu m (PM2.5) and carbon monoxide (CO) and HRV indices during work time (8:30-21:00) on 48 sampling days in the warm season (May-September) and cold season (October-March). We applied mixed-effects models and loess models adjusting for potential confounders to examine the associations between temperature and HRV indices.

Results: We found nonlinear relationships between temperature and HRV indices in both the warm and cold seasons. Linear regression stratified by temperature levels showed that increasing temperature levels were associated with declines in standard deviation of normal-to-normal intervals over different temperature strata and increases in low-frequency power and low-frequency:high-frequency ratio in higher temperature range (> 25 degrees C). PM2.5 and CO modified these associations to various extents.

Conclusions: Temperature was associated with alterations in cardiac autonomic function in healthy adults in the context of traffic-related air pollution. (c) 2012 Elsevier Inc. All rights reserved.

语种: 英语
所属项目编号: 2006BAI19B06 ; 81072267 ; 2012AA062804
项目资助者: National Key Technologies R&amp ; D Program of China ; National Natural Science Foundation of China ; National High Technology Research and Development Program of China ; Academic Award for Excellent Doctoral Candidates of the Ministry of Education of the People&prime ; s Republic of China
WOS记录号: WOS:000313606400011
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/64361
Appears in Collections:北京大学公共卫生学院_期刊论文

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作者单位: 1.Peking Univ, Sch Publ Hlth, Dept Occupat & Environm Hlth Sci, Beijing 100191, Peoples R China
2.Univ N Texas Hlth Sci Ctr, Dept Environm & Occupat Hlth Sci, Sch Publ Hlth, Ft Worth, TX USA
3.Hyogo Coll Med, Dept Publ Hlth, Kobe, Hyogo, Japan
4.Peking Univ, Hosp 3, Beijing 100191, Peoples R China

Recommended Citation:
Wu, Shaowei,Deng, Furong,Liu, Youcheng,et al. Temperature, traffic-related air pollution, and heart rate variability in a panel of healthy adults[J]. ENVIRONMENTAL RESEARCH,2013,120:82-89.
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