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Ozone is associated with cardiopulmonary and stroke emergency hospital visits in Reykjavík, Iceland 2003-2009.
- Source :
-
Environmental health : a global access science source [Environ Health] 2013 Apr 08; Vol. 12, pp. 28. Date of Electronic Publication: 2013 Apr 08. - Publication Year :
- 2013
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Abstract
- Background: Air pollution exposure is associated with hospital admissions and emergency room visits for cardiopulmonary disease and stroke. Iceland's capital area, Reykjavik, has generally low air pollution levels, but traffic and natural sources contribute to pollution levels. The objective of this study was to investigate temporal associations between emergency hospital visits and air pollutants ozone (O3), nitrogen dioxide (NO2), and particulate matter (PM10) in the Icelandic capital area.<br />Methods: We constructed a time series of the daily number of adults who visited the emergency room, or were acutely admitted for stroke or cardiorespiratory causes to Landspitali University Hospital 1 January 2003 - 31 December 2009 from the hospital in-patient register. We used generalized additive models assuming Poisson distribution, to analyze the daily emergency hospital visits as a function of the pollutant levels, and adjusted for meteorological variables, day of week, and time trend with splines.<br />Results: Daily emergency hospital visits increased 3.9% (95% confidence interval (CI) 1.7-6.1%) per interquartile (IQR) change in average O3 the same and two previous days. For females, the increase was 7.8% (95% CI 3.6-12.1) for elderly (70+), the increase was 3.9% (95% CI 0.6-7.3%) per IQR increase of NO2. There were no associations with PM10.<br />Conclusions: We found an increase in daily emergency hospital visits associated with O3, indicating that low-level exposure may trigger cardiopulmonary events or stroke.
- Subjects :
- Adult
Aged
Air Pollutants analysis
Cardiovascular Diseases chemically induced
Comorbidity
Emergency Service, Hospital
Environmental Monitoring
Female
Humans
Iceland epidemiology
Incidence
Male
Middle Aged
Nitrogen Dioxide analysis
Nitrogen Dioxide toxicity
Ozone analysis
Ozone toxicity
Particulate Matter analysis
Particulate Matter toxicity
Poisson Distribution
Respiratory Tract Diseases chemically induced
Seasons
Stroke chemically induced
Stroke epidemiology
Time Factors
Urban Health
Air Pollutants toxicity
Cardiovascular Diseases epidemiology
Environmental Exposure
Hospitalization statistics & numerical data
Respiratory Tract Diseases epidemiology
Subjects
Details
- Language :
- English
- ISSN :
- 1476-069X
- Volume :
- 12
- Database :
- MEDLINE
- Journal :
- Environmental health : a global access science source
- Publication Type :
- Academic Journal
- Accession number :
- 23566138
- Full Text :
- https://doi.org/10.1186/1476-069X-12-28