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Abstract

Title: Sensitivity analysis for trend tests: application to the risk of radiation exposure.
Author: Yu B, Gastwirth JL
Journal: Biostatistics 6(2):201-209
Year: 2005
Month: April

Abstract: Trend tests are used to assess the relationship between multiple level treatment X and binary response R. In observational studies, however, there may be a confounder U that is associated with treatment X and causally related to response R. When the data for the confounder U are not observed, an approach for assessing the sensitivity of test results to U is provided. Its use is illustrated by examining data from a study of mutation rate after the Chernobyl accident.