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Details

Autor(en) / Beteiligte
Titel
Using spatio-temporal modeling for exposure assessment in an investigation of fine particulate air pollution and cardiovascular mortality
Ist Teil von
  • Environmental research, 2016-11, Vol.151 (C), p.564-572
Ort / Verlag
Netherlands: Elsevier Inc
Erscheinungsjahr
2016
Quelle
MEDLINE
Beschreibungen/Notizen
  • U.S. urban air quality has improved dramatically over the past decades. We evaluated acute effects of fine particulate matter (PM2.5) on cardiovascular (CVD) mortality among residents of Allegheny County in SW Pennsylvania (1999–2011) using spatio-temporal modeling of air pollutants (AP) to reduce misclassification error in exposure assessment. Spatio-temporal kriging of daily PM2.5 and ozone (O3) was used to produce daily exposure estimates at the residence ZIP code. Time-stratified case-crossover analysis was conducted to examine short-term effects of PM2.5 on CVD mortality, adjusting for O3 and apparent mean temperature. We studied both single and distributed lags for days 0–5. All CVD mortality and subcategories of ischemic heart disease (IHD), acute myocardial infarction, cerebrovascular disease, peripheral vascular disease (PVD), heart failure and cardiac arrhythmia were examined. A total of 62,135 deaths were identified. We found significant associations of PM2.5 with IHD and PVD mortality at lag day 5: (2.1% (95% CI, 0.2–4.1%) and (7.6%, 95% CI, 0.05–15.7%) per 10µg/m3 increase of PM2.5 in single lag models and for IHD in distributed lag models. There were no statistically significant associations with PM2.5 for any of the other outcomes. The application of finer scale geographically resolved AP exposures made it possible to study acute effects of PM2.5 on CVD mortality in a large metropolitan area. Our study results demonstrated the continued presence of a dose response relationship of increased risk of CVD mortality within this lower range of PM2.5 exposure. •A case-crossover study of PM2.5 and CVD mortality was conducted for 1999–2011.•We used spatio-temporal modeling to better estimate the exposure of air pollutants.•Lag day 5 had increased risk for PM2.5 for IHD and PVD mortality.•PM2.5 had the largest impact on IHD among the people who died at home.•The association between PM2.5 and PVD was strongest among men and in cold season.
Sprache
Englisch
Identifikatoren
ISSN: 0013-9351
eISSN: 1096-0953
DOI: 10.1016/j.envres.2016.08.024
Titel-ID: cdi_osti_scitechconnect_1550722

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