|The effects of ambient temperature on cerebrovascular mortality: an epidemiologic study in four climatic zones in China|
|Zhang, Yanshen1; Li, Shanshan2; Pan, Xiaochuan1; Tong, Shilu3,4; Jaakkola, Jouni J. K.5; Gasparrini, Antonio6; Guo, Yuming2,7; Wang, Sheng1|
|关键词||Cerebrovascular disease Meta-analysis Mortality Temperature Time series analysis|
|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]||HEART-DISEASE MORTALITY ; TIME-SERIES ; COLD SPELLS ; CARDIOVASCULAR MORTALITY ; SEASONAL-VARIATION ; WINTER MORTALITY ; EXCESS MORTALITY ; UNITED-STATES ; HEALTH ; IMPACT|
Background: Little evidence is available about the association between temperature and cerebrovascular mortality in China. This study aims to examine the effects of ambient temperature on cerebrovascular mortality in different climatic zones in China.
Method: We obtained daily data on weather conditions, air pollution and cerebrovascular deaths from five cities (Beijing, Tianjin, Shanghai, Wuhan, and Guangzhou) in China during 2004-2008. We examined city-specific associations between ambient temperature and the cerebrovascular mortality, while adjusting for season, long-term trends, day of the week, relative humidity and air pollution. We examined cold effects using a 1 degrees C decrease in temperature below a city-specific threshold, and hot effects using a 1 degrees C increase in temperature above a city-specific threshold. We used a meta-analysis to summarize the cold and hot effects across the five cities.
Results: Beijing and Tianjin (with low mean temperature) had lower thresholds than Shanghai, Wuhan and Guangzhou (with high mean temperature). In Beijing, Tianjin, Wuhan and Guangzhou cold effects were delayed, while in Shanghai there was no or short induction. Hot effects were acute in all five cities. The cold effects lasted longer than hot effects. The hot effects were followed by mortality displacement. The pooled relative risk associated with a 1 degrees C decrease in temperature below thresholds (cold effect) was 1.037 (95% confidence interval (CI): 1.020, 1.053). The pooled relative risk associated with a 1 degrees C increase in temperature above thresholds (hot effect) was 1.014 (95% CI: 0.979, 1.050).
Conclusion: Cold temperatures are significantly associated with cerebrovascular mortality in China, while hot effect is not significant. People in colder climate cities were sensitive to hot temperatures, while people in warmer climate cities were vulnerable to cold temperature.
|项目编号||30972433 ; GYHY201206027 ; APP1030259|
|资助机构||National Natural Science Foundation of China ; Chinese Meteorological Administration ; Australia National Health and Medical Research Council ; Centre for Air Quality and Health Research and Evaluation ; University of Queensland School of Population Health|
|作者单位||1.Shanghai Key Lab Meteorol & Hlth, Shanghai, Peoples R China|
2.Peking Univ, Sch Publ Hlth, Dept Occupat & Environm Hlth, Beijing 100191, Peoples R China
3.Univ Queensland, Sch Populat Hlth, Dept Epidemiol & Biostat, Brisbane, Qld 4006, Australia
4.Queensland Univ Technol, Sch Publ Hlth, Brisbane, Qld 4001, Australia
5.Queensland Univ Technol, Inst Hlth & Biomed Innovat, Brisbane, Qld 4001, Australia
6.Univ Oulu, Inst Hlth Sci, Ctr Environm & Resp Hlth Res, Oulu, Finland
7.London Sch Hyg & Trop Med, Dept Med Stat, London WC1, England
|Zhang, Yanshen,Li, Shanshan,Pan, Xiaochuan,et al. The effects of ambient temperature on cerebrovascular mortality: an epidemiologic study in four climatic zones in China[J]. ENVIRONMENTAL HEALTH,2014,13.|
|APA||Zhang, Yanshen.,Li, Shanshan.,Pan, Xiaochuan.,Tong, Shilu.,Jaakkola, Jouni J. K..,...&Wang, Sheng.(2014).The effects of ambient temperature on cerebrovascular mortality: an epidemiologic study in four climatic zones in China.ENVIRONMENTAL HEALTH,13.|
|MLA||Zhang, Yanshen,et al."The effects of ambient temperature on cerebrovascular mortality: an epidemiologic study in four climatic zones in China".ENVIRONMENTAL HEALTH 13(2014).|