|Temperature, traffic-related air pollution, and heart rate variability in a panel of healthy adults|
|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|
|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|
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.
|项目编号||2006BAI19B06 ; 81072267 ; 2012AA062804|
|资助机构||National Key Technologies R& ; 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|
|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
|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.|
|APA||Wu, Shaowei.,Deng, Furong.,Liu, Youcheng.,Shima, Masayuki.,Niu, Jie.,...&Guo, Xinbiao.(2013).Temperature, traffic-related air pollution, and heart rate variability in a panel of healthy adults.ENVIRONMENTAL RESEARCH,120,82-89.|
|MLA||Wu, Shaowei,et al."Temperature, traffic-related air pollution, and heart rate variability in a panel of healthy adults".ENVIRONMENTAL RESEARCH 120(2013):82-89.|