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Estimation of Short-Term Effects of Air Pollution on Stroke Hospital Admissions in Southern Sweden.

Oudin, Anna LU ; Strömberg, Ulf LU ; Jakobsson, Kristina LU ; Stroh, Emilie LU orcid and Björk, Jonas LU (2010) In Neuroepidemiology 34(3). p.131-142
Abstract
Background: Short-term exposure to high levels of air pollution can increase stroke risk. In this study we investigated the short-term effects of air pollution on hospital admissions for stroke in a setting where pollutant levels are rather low. We also addressed methodological issues in evaluating the short-term effects of air pollution. Methods: Daily admissions of ischemic (n = 11,267) and hemorrhagic (n = 1,681) stroke were obtained from a Swedish quality register for stroke, Riks-Stroke. We used two types of exposure data: (1) daily measured background levels of ozone, temperature and particles with a diameter <10 mum (PM(10)) and (2) modeled levels of a mixture of NO and NO(2) (NO(x)) at the residential address of each individual.... (More)
Background: Short-term exposure to high levels of air pollution can increase stroke risk. In this study we investigated the short-term effects of air pollution on hospital admissions for stroke in a setting where pollutant levels are rather low. We also addressed methodological issues in evaluating the short-term effects of air pollution. Methods: Daily admissions of ischemic (n = 11,267) and hemorrhagic (n = 1,681) stroke were obtained from a Swedish quality register for stroke, Riks-Stroke. We used two types of exposure data: (1) daily measured background levels of ozone, temperature and particles with a diameter <10 mum (PM(10)) and (2) modeled levels of a mixture of NO and NO(2) (NO(x)) at the residential address of each individual. Results: We estimated a 13% (95% confidence interval, 4-22%) increased risk for hospital admissions for ischemic stroke for levels of PM(10) above 30 mug/m(3) compared to <15 mug/m(3), whereas temperature above 16 degrees C decreased the risk. No consistent associations were found for hemorrhagic stroke or for ischemic stroke and ozone or NO(x). Conclusion: Particulate air pollution and temperature seemed to be associated with ischemic stroke hospital admissions. Individual exposure modeling facilitates a detailed exposure assessment but may also be more prone to misclassification errors. The time series and case crossover approaches yielded similar effect estimates. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Neuroepidemiology
volume
34
issue
3
pages
131 - 142
publisher
Karger
external identifiers
  • wos:000274315000001
  • pmid:20068360
  • scopus:73649101773
ISSN
1423-0208
DOI
10.1159/000274807
language
English
LU publication?
yes
id
d589e55c-dd0b-40a6-983c-7ff3f727e46d (old id 1541143)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/20068360?dopt=Abstract
date added to LUP
2016-04-04 08:41:23
date last changed
2023-10-17 19:56:36
@article{d589e55c-dd0b-40a6-983c-7ff3f727e46d,
  abstract     = {{Background: Short-term exposure to high levels of air pollution can increase stroke risk. In this study we investigated the short-term effects of air pollution on hospital admissions for stroke in a setting where pollutant levels are rather low. We also addressed methodological issues in evaluating the short-term effects of air pollution. Methods: Daily admissions of ischemic (n = 11,267) and hemorrhagic (n = 1,681) stroke were obtained from a Swedish quality register for stroke, Riks-Stroke. We used two types of exposure data: (1) daily measured background levels of ozone, temperature and particles with a diameter &lt;10 mum (PM(10)) and (2) modeled levels of a mixture of NO and NO(2) (NO(x)) at the residential address of each individual. Results: We estimated a 13% (95% confidence interval, 4-22%) increased risk for hospital admissions for ischemic stroke for levels of PM(10) above 30 mug/m(3) compared to &lt;15 mug/m(3), whereas temperature above 16 degrees C decreased the risk. No consistent associations were found for hemorrhagic stroke or for ischemic stroke and ozone or NO(x). Conclusion: Particulate air pollution and temperature seemed to be associated with ischemic stroke hospital admissions. Individual exposure modeling facilitates a detailed exposure assessment but may also be more prone to misclassification errors. The time series and case crossover approaches yielded similar effect estimates.}},
  author       = {{Oudin, Anna and Strömberg, Ulf and Jakobsson, Kristina and Stroh, Emilie and Björk, Jonas}},
  issn         = {{1423-0208}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{131--142}},
  publisher    = {{Karger}},
  series       = {{Neuroepidemiology}},
  title        = {{Estimation of Short-Term Effects of Air Pollution on Stroke Hospital Admissions in Southern Sweden.}},
  url          = {{http://dx.doi.org/10.1159/000274807}},
  doi          = {{10.1159/000274807}},
  volume       = {{34}},
  year         = {{2010}},
}