Estimation of Short-Term Effects of Air Pollution on Stroke Hospital Admissions in Wuhan, China. e61168

Background and Objective High concentrations of air pollutants have been linked to increased incidence of stroke in North America and Europe but not yet assessed in mainland China. The aim of this study is to evaluate the association between stroke hospitalization and short-term elevation of air pol...

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Bibliographic Details
Published in:PloS one 2013-04, Vol.8 (4)
Main Authors: Xiang, Hao, Mertz, Kristen J, Arena, Vincent C, Brink, Luann L, Xu, Xiaohui, Bi, Yongyi, Talbott, Evelyn O
Format: Article
Language:English
Subjects:
Air pollution
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Summary:Background and Objective High concentrations of air pollutants have been linked to increased incidence of stroke in North America and Europe but not yet assessed in mainland China. The aim of this study is to evaluate the association between stroke hospitalization and short-term elevation of air pollutants in Wuhan, China. Methods Daily mean NO sub(2), SO sub(2) and PM sub(10) levels, temperature and humidity were obtained from 2006 through 2008. Data on stroke hospitalizations (ICD 10: I60-I69) at four hospitals in Wuhan were obtained for the same period. A time-stratified case-crossover design was performed by season (April-September and October-March) to assess effects of pollutants on stroke hospital admissions. Results Pollution levels were higher in October-March with averages of 136.1 mu g/m super(3) for PM sub(10), 63.6 mu g/m super(3) for NO sub(2) and 71.0 mu g/m super(3) for SO sub(2) than in April-September when averages were 102.0 mu g/m super(3), 41.7 mu g/m super(3) and 41.7 mu g/m super(3), respectively (p
ISSN:1932-6203
DOI:10.1371/journal.pone.0061168