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Air pollution is associated with primary health care visits for asthma in Sweden: a case-crossover design with a distributed lag non-linear model
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine. Laboratory Medicine, Occupational and Environmental Medicine, Lund University, Lund, Sweden.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine.
2016 (English)In: Spatial and Spatio-temporal Epidemiology, ISSN 1877-5845, E-ISSN 1877-5853, Vol. 17, 37-44 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Air pollution can increase the symptoms of asthma and has an acute effect on the number of emergency room visits and hospital admissions because of asthma, but little is known about the effect of air pollution on the number of primary health care (PHC) visits for asthma.

OBJECTIVE: To investigate the association between air pollution and the number of PHC visits for asthma in Scania, southern Sweden.

METHODS: Data on daily PHC visits for asthma were obtained from a regional healthcare database in Scania, which covers approximately half a million people. Air pollution data from 2005 to 2010 were obtained from six urban background stations. We used a case-crossover study design and a distributed lag non-linear model in the analysis.

RESULTS: The air pollution levels were generally within the EU air quality guidelines. The mean number of daily PHC visits for asthma was 34. The number of PHC visits increased by 5% (95% confidence interval (CI): 3.91-6.25%) with every 10µg m(-3) increase in daily mean NO2 lag (0-15), suggesting that daily air pollution levels are associated with PHC visits for asthma.

CONCLUSION: Even though the air quality in Scania between 2005 and 2010 was within EU's guidelines, the number of PHC visits for asthma increased with increasing levels of air pollution. This suggests that as well as increasing hospital and emergency room visits, air pollution increases the burden on PHC due to milder symptoms of asthma

Place, publisher, year, edition, pages
2016. Vol. 17, 37-44 p.
Keyword [en]
Asthma, Primary Health Care, Air pollution
National Category
Environmental Health and Occupational Health
Identifiers
URN: urn:nbn:se:umu:diva-121527DOI: 10.1016/j.sste.2016.04.010PubMedID: 27246271OAI: oai:DiVA.org:umu-121527DiVA: diva2:933077
Available from: 2016-06-03 Created: 2016-06-03 Last updated: 2016-12-15Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
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  • de-DE
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