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Protective Effects of Ambient Ozone on Incidence and Outcomes of Ischemic Stroke in Changzhou, China: A Time-Series Study

Author

Listed:
  • Yongquan Yu

    (Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
    These authors contributed equally to this work.)

  • Huibin Dong

    (Department of Chronic Disease Control and Prevention, Changzhou Center for Disease Control and Prevention, 203 Taishan Road, Changzhou 213022, China
    These authors contributed equally to this work.)

  • Shen Yao

    (Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China)

  • Minghui Ji

    (Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China)

  • Xingjuan Yao

    (Department of Chronic Disease Control and Prevention, Changzhou Center for Disease Control and Prevention, 203 Taishan Road, Changzhou 213022, China)

  • Zhan Zhang

    (Department of Hygiene Analysis and Detection, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China)

Abstract

The potential beneficial effect of ozone (O 3 ) on stroke had been identified experimentally and clinically, but these effects remain controversial in population-based studies. This study aimed to explore the epidemiological association between O 3 and risk of ischemic stroke. Ischemic stroke related health data and air pollution data were obtained from the Center for Disease Control and Prevention and Environmental Monitoring Center in Changzhou between 2015 and 2016, respectively. The associations between the short-term exposure to O 3 and daily ischemic stroke onsets and deaths were examined based on time-series generalized additive Poisson model. During the study period, daily ischemic stroke onsets and deaths decreased 0.340% (95% confidence interval (CI) −0.559% to −0.120%) and 0.697% (95% CI −1.103% to −0.290%) with an interquartile range (IQR) (41.1 µg/m 3 ) increase in levels of ambient O 3 , respectively. The protective effects of O 3 were more significant in men and elders and in the cool season than those in women and young people and in the warm season, respectively. The negative association was independent of PM 2.5 , PM 10 , SO 2 , NO 2 or CO exposure. Acute O 3 exposure was associated with decreased risk of ischemic stroke. These findings will help provide new insights into the relationship between ischemic stroke and ambient O 3 concentrations.

Suggested Citation

  • Yongquan Yu & Huibin Dong & Shen Yao & Minghui Ji & Xingjuan Yao & Zhan Zhang, 2017. "Protective Effects of Ambient Ozone on Incidence and Outcomes of Ischemic Stroke in Changzhou, China: A Time-Series Study," IJERPH, MDPI, vol. 14(12), pages 1-10, December.
  • Handle: RePEc:gam:jijerp:v:14:y:2017:i:12:p:1610-:d:123712
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    References listed on IDEAS

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    1. Pi Guo & Yulin Wang & Wenru Feng & Jiagang Wu & Chuanxi Fu & Hai Deng & Jun Huang & Li Wang & Murui Zheng & Huazhang Liu, 2017. "Ambient Air Pollution and Risk for Ischemic Stroke: A Short-Term Exposure Assessment in South China," IJERPH, MDPI, vol. 14(9), pages 1-11, September.
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    Cited by:

    1. Zesheng Chen & Bin Wang & Yanlin Hu & Lan Dai & Yangming Liu & Jing Wang & Xueqin Cao & Yiming Wu & Ting Zhou & Xiuqing Cui & Tingming Shi, 2022. "Short-Term Effects of Low-Level Ambient Air NO 2 on the Risk of Incident Stroke in Enshi City, China," IJERPH, MDPI, vol. 19(11), pages 1-13, May.

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