Estimation of Causal Effect Measures in the Presence of Measurement Error in Confounders
Di Shu () and
Grace Y. Yi ()
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Di Shu: University of Waterloo
Grace Y. Yi: University of Waterloo
Statistics in Biosciences, 2018, vol. 10, issue 1, No 14, 233-254
Abstract The odds ratio, risk ratio, and the risk difference are important measures for assessing comparative effectiveness of available treatment plans in epidemiological studies. Estimation of these measures, however, is often challenged by the presence of error-contaminated confounders. In this article, by adapting two correction methods for measurement error effects applicable to the noncausal context, we propose valid methods which consistently estimate the causal odds ratio, causal risk ratio, and the causal risk difference for settings with error-prone confounders. Furthermore, we develop a bootstrap-based procedure to construct estimators with improved asymptotic efficiency. Numerical studies are conducted to assess the performance of the proposed methods.
Keywords: Causal effect measures; Causal inference; Comparative effectiveness; Confounding; Measurement error (search for similar items in EconPapers)
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