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Wang, Xiaojie; Qian, Zhengmin; Wang, Xiaojie; Hong, Hua; Yang, Yin; Xu, Yanjun; Xu, Xiaojun; Yao, Zhenjiang; Zhang, Lingli; Rolling, Craig A.; Schootman, Mario; Liu, Tao; Xiao, Jianpeng; Li, Xing; Zeng, Weilin; Ma, Wenjun; Lin, Hualiang
Environmental pollution (1987), August 2018, 2018-Aug, 2018-08-00, 20180801, Volume: 239Journal Article
While increasing evidence suggested that PM2.5 is the most harmful fraction of the particle pollutants, the health effects of coarse particles (PM10–2.5) have been inconclusive, especially on cerebrovascular diseases, we thus evaluated the effects of PM10, PM2.5, and PM10–2.5 on stroke mortality in six Chinese subtropical cities using generalized additive models. We also conducted random-effects meta-analyses to estimate the overall effects across the six cities. We found that PM10, PM2.5, and PM10-2.5 were significantly associated with stroke mortality. Each 10 μg/m3 increase of PM10, PM2.5 and PM10-2.5 (lag03) was associated with an increase of 1.88% (95% CI: 1.37%, 2.39%), 3.07% (95% CI: 2.35%, 3.79%), and 5.72% (95% CI: 3.82%, 7.65%) in overall stroke mortality. Using the World Health Organization's guideline as reference concentration, we estimated that 3.21% (95% CI: 1.65%, 3.01%) of stroke mortality (corresponding to 1743 stroke mortalities, 95% CI: 896, 1633) were attributed to PM10, 5.57% (95% CI: 0.50%, 1.23%) stroke mortality (3019, 95% CI: 2286, 3777) were attributed to PM2.5, and 2.02% (95% CI: 1.85%, 3.08%) of stroke mortality (1097, 95% CI: 1005, 1673) could be attributed to PM10-2.5. Our analysis indicates that both PM2.5 and PM10-2.5 are important risk factors of stroke mortality and should be considered in the prevention and control of stroke in the study area. Display omitted •We estimated the association between coarse PM pollution and stroke mortality.•Both fine and coarse particular are associated with stroke mortality.•The effect of PM10-2.5 on stroke is higher than PM2.5.
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