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Activity Number:
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5
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Type:
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Invited
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Date/Time:
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Sunday, July 29, 2007 : 2:00 PM to 3:50 PM
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Sponsor:
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WNAR
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| Abstract - #308094 |
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Title:
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Reassessing the Relationship Between Ozone and Short-Term Mortality in U.S. Urban Communities
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Author(s):
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Richard L. Smith*+ and Baowei Xu and Allen S. Lefohn and Paul Switzer
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Companies:
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The University of North Carolina at Chapel Hill and The University of North Carolina at Chapel Hill and A.S.L. & Associates and Stanford University
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Address:
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Department of Statistics and Operations Research, Chapel Hill, NC, 27599-3260,
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Keywords:
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Air pollution and mortality ; Hierarchical models ; Nonlinear regression ; Time series analysis
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Abstract:
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In this paper we re-analyze data collected in connection with the National Morbidity, Mortality and Air Pollution Study that have led to estimates of the relationship between ozone and short-term mortality, with the intention of examining the sensitivity of the results with respect to a number of methodological features. Among the features we examine are (a) sensitivity of the results to the selection of lags for meteorological and air pollution variables, including backwards in time analysis; (b) nonlinear models for the ozone-mortality relationship; (c) alternative approaches to distributed lags; (d) alternative approaches to hierarchical models for combining data from different cities.
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