TY - JOUR
T1 - The association between PM2.5 exposure and neurological disorders
T2 - A systematic review and meta-analysis
AU - Fu, Pengfei
AU - Guo, Xinbiao
AU - Cheung, Felix Man Ho
AU - YUNG, Kin Lam
N1 - Funding Information:
This research was supported by the HKBU Interdisciplinary Research Clusters Matching Scheme ( RC-IRCs/17-18/05 ).
PY - 2019/3/10
Y1 - 2019/3/10
N2 - Background: Recent systematic review and meta-analyses have tried to identify an association between PM 2.5 exposure and stroke, but few could find a conclusive and comprehensive evidence. Moreover, the associations between PM 2.5 , neurodegenerative diseases and neurodevelopmental disorders have never been reviewed. We aimed to assess the effects of PM 2.5 exposure on stroke, dementia, Alzheimer's disease, autism spectrum disorder (ASD), Parkinson's disease, and mild cognitive impairment (MCI). Methods: We searched PubMed and CNKI databases for articles published until June 2018. Studies were eligible for analysis if they were human studies and provided risk estimates with 95% CI. We screened 1645 articles and identified 80 eligible studies covering 26 countries across all continents except Antarctica. Risks of incidence and mortality were extracted and stratified by types of neurological disorders, PM 2.5 concentration and duration of PM 2.5 exposure. Results: We found significant association between PM 2.5 exposure and stroke, dementia, Alzheimer's disease, ASD, Parkinson's disease. The risks of ischemic and hemorrhagic stroke were higher than that of stroke in general, and that hemorrhagic stroke had by far the highest mortality. The risk of stroke for heavily polluted countries was significantly higher than that of lightly polluted countries. Short- and long-term PM 2.5 exposure was associated with increased risks of stroke (short-term odds ratio 1.01 [per 10 μg/m 3 increase in PM 2.5 concentrations], 95% CI 1.01–1.02; long-term 1.14, 95% CI 1.08–1.21) and mortality (short-term 1.02, 95% CI 1.01–1.04; long-term 1.15, 95% CI 1.07–1.24) of stroke. Long-term PM 2.5 exposure was associated with increased risks of dementia (1.16, 95% CI 1.07–1.26), Alzheimer's disease (3.26, 95% 0.84–12.74), ASD (1.68, 95% CI 1.20–2.34), and Parkinson's disease (1.34, 95% CI 1.04–1.73). Conclusions: There is a strong association between PM 2.5 exposure and neurological disorders. National governments should exert greater efforts to improve air quality given its health implications.
AB - Background: Recent systematic review and meta-analyses have tried to identify an association between PM 2.5 exposure and stroke, but few could find a conclusive and comprehensive evidence. Moreover, the associations between PM 2.5 , neurodegenerative diseases and neurodevelopmental disorders have never been reviewed. We aimed to assess the effects of PM 2.5 exposure on stroke, dementia, Alzheimer's disease, autism spectrum disorder (ASD), Parkinson's disease, and mild cognitive impairment (MCI). Methods: We searched PubMed and CNKI databases for articles published until June 2018. Studies were eligible for analysis if they were human studies and provided risk estimates with 95% CI. We screened 1645 articles and identified 80 eligible studies covering 26 countries across all continents except Antarctica. Risks of incidence and mortality were extracted and stratified by types of neurological disorders, PM 2.5 concentration and duration of PM 2.5 exposure. Results: We found significant association between PM 2.5 exposure and stroke, dementia, Alzheimer's disease, ASD, Parkinson's disease. The risks of ischemic and hemorrhagic stroke were higher than that of stroke in general, and that hemorrhagic stroke had by far the highest mortality. The risk of stroke for heavily polluted countries was significantly higher than that of lightly polluted countries. Short- and long-term PM 2.5 exposure was associated with increased risks of stroke (short-term odds ratio 1.01 [per 10 μg/m 3 increase in PM 2.5 concentrations], 95% CI 1.01–1.02; long-term 1.14, 95% CI 1.08–1.21) and mortality (short-term 1.02, 95% CI 1.01–1.04; long-term 1.15, 95% CI 1.07–1.24) of stroke. Long-term PM 2.5 exposure was associated with increased risks of dementia (1.16, 95% CI 1.07–1.26), Alzheimer's disease (3.26, 95% 0.84–12.74), ASD (1.68, 95% CI 1.20–2.34), and Parkinson's disease (1.34, 95% CI 1.04–1.73). Conclusions: There is a strong association between PM 2.5 exposure and neurological disorders. National governments should exert greater efforts to improve air quality given its health implications.
KW - Air pollution
KW - Meta-analysis
KW - Neurological disorders
KW - PM
UR - http://www.scopus.com/inward/record.url?scp=85057276077&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2018.11.218
DO - 10.1016/j.scitotenv.2018.11.218
M3 - Review article
C2 - 30577116
AN - SCOPUS:85057276077
SN - 0048-9697
VL - 655
SP - 1240
EP - 1248
JO - Science of the Total Environment
JF - Science of the Total Environment
ER -
