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Statistical Methods in Medical Research, Vol. 17, No. 2, 171-189 (2008) DOI: 10.1177/0962280206075525 © 2008 SAGE Publications A Bayesian approach to assess interaction between known risk factors: the risk of lung cancer from exposure to asbestos and smokingSchool of Mathematical Sciences, Queensland University of Technology, Australia, d.wraith{at}qut.edu.au
School of Mathematical Sciences, Queensland University of Technology, Australia We review the literature on the combined effect of asbestos exposure and smoking on lung cancer, and explore a Bayesian approach to assess evidence of interaction. Previous approaches have focussed on separate tests for an additive or multiplicative relation. We extend these approaches by exploring the strength of evidence for either relation using approaches which allow the data to choose between both models. We then compare the different approaches.
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