Spatial-temporal association between fine particulate matter and daily mortality.
Spatial-temporal association between fine particulate matter and daily mortality.
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DOI:
10.1016/j.csda.2008.05.018
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发表时间:
2009-06-15
影响因子:
1.8
通讯作者:
Reich, Brian J.
中科院分区:
文献类型:
--
作者:
Choi, Jungsoon;Fuentes, Montserrat;Reich, Brian J.
Fine particulate matter (PM2.5) is a mixture of pollutants that has been linked to serious health problems, including premature mortality. Since the chemical composition of PM2.5 varies across space and time, the association between PM2.5 and mortality could also change with space and season. In this work we develop and implement a statistical multi-stage Bayesian framework that provides a very broad, flexible approach to studying the spatiotemporal associations between mortality and population exposure to daily PM2.5 mass, while accounting for different sources of uncertainty. In stage 1, we map ambient PM2.5 air concentrations using all available monitoring data (IMPROVE and FRM) and an air quality model (CMAQ) at different spatial and temporal scales. In stage 2, we examine the spatial temporal relationships between the health end-points and the exposures to PM2.5 by introducing a spatial-temporal generalized Poisson regression model. We adjust for time-varying confounders, such as seasonal trends. A common seasonal trends model is to use a fixed number of basis functions to account for these confounders, but the results can be sensitive to the number of basis functions. In this study, the number of the basis functions is treated as an unknown parameter in our Bayesian model and we use a space-time stochastic search variable selection approach. We apply our methods to a data set in North Carolina for the year 2001.
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影响因子:
5.7
作者:
Eilers, PHC;Marx, BD
通讯作者:
Marx, BD
影响因子:
8.3
作者:
DOCKERY, DW;SCHWARTZ, J;SPENGLER, JD
通讯作者:
SPENGLER, JD
影响因子:
2.1
作者:
POPE, CA;DOCKERY, DW;SCHWARTZ, J
通讯作者:
SCHWARTZ, J
DOI:
10.1198/016214502753479266
发表时间:
2002-03-01
影响因子:
3.7
作者:
Dominici, F;Daniels, M;Samet, JM
通讯作者:
Samet, JM
影响因子:
4.4
作者:
Binkowski, FS;Roselle, SJ
通讯作者:
Roselle, SJ