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学科主题: 公共卫生
题名:
The short-term effect of air pollution on cardiovascular mortality in Tianjin, China: Comparison of time series and case-crossover analyses
作者: Guo, Yuming1; Barnett, Adrian G.1; Zhang, Yanshen2; Tong, Shilu1; Yu, Weiwei1; Pan, Xiaochuan3
关键词: Air pollution ; Cardiovascular mortality ; Case-crossover ; Time series
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
发表日期: 2010-12-15
DOI: 10.1016/j.scitotenv.2010.10.013
卷: 409, 期:2, 页:300-306
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
关键词[WOS]: EMERGENCY-ROOM VISITS ; CARDIAC-ARRHYTHMIA ; HOSPITAL ADMISSION ; DAILY DEATHS ; US CITIES ; PARTICULATE ; DESIGNS ; ASSOCIATION ; TEMPERATURE ; EXPOSURES
英文摘要:

Background: Many studies have illustrated that ambient air pollution negatively impacts on health. However, little evidence is available for the effects of air pollution on cardiovascular mortality (CVM) in Tianjin, China. Also, no study has examined which strata length for the time-stratified case-crossover analysis gives estimates that most closely match the estimates from time series analysis.

Objectives: The purpose of this study was to estimate the effects of air pollutants on CVM in Tianjin. China, and compare time-stratified case-crossover and time series analyses.

Method: A time-stratified case-crossover and generalized additive model (time series) were applied to examine the impact of air pollution on CVM from 2005 to 2007. Four time-stratified case-crossover analyses were used by varying the stratum length (Calendar month, 28, 21 or 14 days). Jackknifing was used to compare the methods. Residual analysis was used to check whether the models fitted well.

Results: Both case-crossover and time series analyses show that air pollutants (PM10, SO2 and NO2) were positively associated with CVM. The estimates from the time-stratified case-crossover varied greatly with changing strata length. The estimates from the time series analyses varied slightly with changing degrees of freedom per year for time. The residuals from the time series analyses had less autocorrelation than those from the case-crossover analyses indicating a better fit.

Conclusion: Air pollution was associated with an increased risk of CVM in Tianjin, China. Time series analyses performed better than the time-stratified case-crossover analyses in terms of residual checking. (C) 2010 Elsevier B.V. All rights reserved.

语种: 英语
所属项目编号: 30972433 ; 553043
项目资助者: National Natural Science Foundation of China ; QUT Postgraduate Research Award (QUTPRA) ; NHMRC
WOS记录号: WOS:000286294300008
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/65016
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.Queensland Univ Technol, Inst Hlth & Biomed Innovat, Sch Publ Hlth, Brisbane, Qld 4059, Australia
2.Chinese Res Inst Environm Sci, Dept Environm Pollut & Hlth, Beijing 100012, Peoples R China
3.Peking Univ, Sch Publ Hlth, Dept Occupat & Environm Hlth, Beijing 100191, Peoples R China

Recommended Citation:
Guo, Yuming,Barnett, Adrian G.,Zhang, Yanshen,et al. The short-term effect of air pollution on cardiovascular mortality in Tianjin, China: Comparison of time series and case-crossover analyses[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2010,409(2):300-306.
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