Gaseous Air Pollution and the Risk for Stroke Admissions: A Case-Crossover Study in Beijing, China

Fangfang Huang, Yanxia Luo, Peng Tan, Qin Xu, Lixin Tao, Jin Guo, Feng Zhang, Xueqin Xie and Xiuhua Guo
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Fangfang Huang: School of Public Health, Capital Medical University, Beijing 100069, China
Yanxia Luo: School of Public Health, Capital Medical University, Beijing 100069, China
Peng Tan: Beijing Public Health Information Center, Beijing 100050, China
Qin Xu: School of Public Health, Capital Medical University, Beijing 100069, China
Lixin Tao: School of Public Health, Capital Medical University, Beijing 100069, China
Jin Guo: School of Public Health, Capital Medical University, Beijing 100069, China
Feng Zhang: School of Public Health, Capital Medical University, Beijing 100069, China
Xueqin Xie: Beijing Public Health Information Center, Beijing 100050, China
Xiuhua Guo: School of Public Health, Capital Medical University, Beijing 100069, China

IJERPH, 2017, vol. 14, issue 2, 1-14

Abstract: Background: Though increasing evidence supports association between gaseous air pollution and stroke, it remains unclear whether the effects differ in season, sex and age. The aim of this study was to examine the associations of gaseous air pollution with stroke admissions in Beijing, 2013–2014 in different subgroups. Methods: Case-crossover design and conditional logistic regression were used to perform the analyses. We examined the exposure-response relationship between air pollution and stroke. Stratified analyses were performed in different seasons, sex, and age groups. Results: There were 147,624 stroke admissions during the study period. In the whole study period, percent changes of stroke admissions were 0.82% (95% CI: 0.52% to 1.13%) and 0.73% (95% CI: 0.44% to 1.03%) per 10 ?g/m 3 increase in the same day conentration of nitrogen dioxide (NO 2 ) and sulfur dioxide (SO 2 ). The positive associations were higher in warm seasons and with patients >65 years ( p < 0.05). Contrary effects of carbon monoxide (CO) and ozone on stroke admissions were observed in different seasons. Conclusions: NO 2 and SO 2 were positively associated with stroke admissions, with stronger effects in warm seasons and with patients >65 years. The associations of CO and ozone with stroke admissions differed across seasons.

Keywords: stroke; air pollution; hospital admission; exposure-response relationship (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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