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Activity Number: 36
Type: Contributed
Date/Time: Sunday, August 9, 2015 : 2:00 PM to 3:50 PM
Sponsor: Biometrics Section
Abstract #315193 View Presentation
Title: An Improved Two-Stage Procedure to Compare Two or More Hazard Curves
Author(s): Zhongxue Chen* and Hanwen Huang and Peihua Qiu
Companies: Indiana University - Bloomington and University of Georgia and University of Florida
Keywords: Bonferroni correction ; crossing ; Fisher test ; hazard rate ; survival data
Abstract:

Qiu and Sheng has proposed a powerful and robust two-stage procedure to compare two hazard rate functions. In this paper we improve their method by using the Fisher test to combine the asymptotically independent p-values obtained from the two stages of their procedure. In addition, we extend the procedure to situations with multiple hazard rate functions. Our comprehensive simulation study shows that the proposed method has a good performance in terms of controlling the type I error rate and of detecting power. Two real data applications are considered for illustrating the use of the new method.


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

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