Gaseous Air Pollution and the Risk for Stroke Admissions: A Case-Crossover Study in Beijing, China
AbstractBackground: 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 μg/m3 increase in the same day conentration of nitrogen dioxide (NO2) and sulfur dioxide (SO2). 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: NO2 and SO2 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. View Full-Text
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Huang, F.; Luo, Y.; Tan, P.; Xu, Q.; Tao, L.; Guo, J.; Zhang, F.; Xie, X.; Guo, X. Gaseous Air Pollution and the Risk for Stroke Admissions: A Case-Crossover Study in Beijing, China. Int. J. Environ. Res. Public Health 2017, 14, 189.
Huang F, Luo Y, Tan P, Xu Q, Tao L, Guo J, Zhang F, Xie X, Guo X. Gaseous Air Pollution and the Risk for Stroke Admissions: A Case-Crossover Study in Beijing, China. International Journal of Environmental Research and Public Health. 2017; 14(2):189.Chicago/Turabian Style
Huang, Fangfang; Luo, Yanxia; Tan, Peng; Xu, Qin; Tao, Lixin; Guo, Jin; Zhang, Feng; Xie, Xueqin; Guo, Xiuhua. 2017. "Gaseous Air Pollution and the Risk for Stroke Admissions: A Case-Crossover Study in Beijing, China." Int. J. Environ. Res. Public Health 14, no. 2: 189.
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