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Activity Number: 61
Type: Contributed
Date/Time: Sunday, August 3, 2008 : 4:00 PM to 5:50 PM
Sponsor: Section on Statistical Computing
Abstract - #301255
Title: Sensitivity Analysis for Observational Studies: The ObsSens Package for R
Author(s): Gregory L. Snow*+
Companies: Intermountain Healthcare
Address: Eigth Avenue and C Street, Salt Lake City, UT, 84143,
Keywords: Sensitivity analysis ; Observational Studies ; R packages
Abstract:

This paper introduces and demonstrates the obsSens package for R. It implements the sensitivity analysis methods for observational studies presented in the paper "Assessing the Sensitivity of Regression Results to Unmeasured Confounders in Observational Studies" by Lin, Psaty, and Kronmal. The package will be demonstrated using data from a study on platelet transfusions in premature babies. The study shows that a practice meant to help the newborns is unlikely to be beneficial and possibly harmful.

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Revised September, 2008