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Activity Number: 232
Type: Topic Contributed
Date/Time: Monday, August 1, 2016 : 2:00 PM to 3:50 PM
Sponsor: Biometrics Section
Abstract #318851 View Presentation
Title: Sharp Sensitivity Bounds for Mediation Under Unmeasured Mediator-Outcome Confounding
Author(s): Peng Ding*
Companies: University of California at Berkeley
Keywords: Bounding factor ; Causal inference ; Collider ; Natural direct effect ; Natural indirect effect

It is often of interest to decompose a total effect of an exposure into the component that acts on the outcome through some mediator and the component that acts independently through other pathways. Said another way, we are interested in the direct and indirect effects of the exposure on the outcome. Even if the exposure is randomly assigned, it is often infeasible to randomize the mediator, leaving the mediator-outcome confounding not fully controlled. We develop a sensitivity analysis technique that can bound the direct and indirect effects without parametric assumptions about the unmeasured mediator-outcome confounding.

Authors who are presenting talks have a * after their name.

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