Estimating the effects of environmental exposures using a weighted mean of monitoring stations

Barnett, A. G., Clements, A. C. A. and Vaneckova, P. (2012) Estimating the effects of environmental exposures using a weighted mean of monitoring stations. Spatial and Spatio-temporal Epidemiology, 3 3: 225-234. doi:10.1016/j.sste.2012.02.010


Author Barnett, A. G.
Clements, A. C. A.
Vaneckova, P.
Title Estimating the effects of environmental exposures using a weighted mean of monitoring stations
Journal name Spatial and Spatio-temporal Epidemiology   Check publisher's open access policy
ISSN 1877-5845
1877-5853
Publication date 2012-09-01
Sub-type Article (original research)
DOI 10.1016/j.sste.2012.02.010
Volume 3
Issue 3
Start page 225
End page 234
Total pages 10
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2013
Language eng
Abstract The health effects of environmental hazards are often examined using time series of the association between a daily response variable (e.g., death) and a daily level of exposure (e.g., temperature). Exposures are usually the average from a network of stations. This gives each station equal importance, and negates the opportunity for some stations to be better measures of exposure. We used a Bayesian hierarchical model that weighted stations using random variables between zero and one. We compared the weighted estimates to the standard model using data on health outcomes (deaths and hospital admissions) and exposures (air pollution and temperature) in Brisbane, Australia. The improvements in model fit were relatively small, and the estimated health effects of pollution were similar using either the standard or weighted estimates. Spatial weighted exposures would be probably more worthwhile when there is either greater spatial detail in the health outcome, or a greater spatial variation in exposure.
Keyword Air pollution
Spatial analysis
Temperature
Time series
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online: 7 March 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Public Health Publications
 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Tue, 08 Jan 2013, 23:43:09 EST by Geraldine Fitzgerald on behalf of School of Public Health