Weighted Lin-Wang Tests for Crossing Hazards. (30th March 2014)

• Record Type: Journal Article
• Authors: Koziol, James A.; Jia, Zhenyu
• Other Names: Xia Xiao-Qin Academic Editor.
• Is Part Of: Computational and mathematical methods in medicine. Volume 2014(2014)
• Publication Date: 2014-03-30
• Subjects: Medicine -- Computer simulation -- Periodicals; Medicine -- Mathematical models -- Periodicals; 610.11
• DOI: 10.1155/2014/643457
• Languages: English
• ISSNs: 1748-670X

Abstract

Abstract : Lin and Wang have introduced a quadratic version of the logrank test, appropriate for situations in which the underlying survival distributions may cross. In this note, we generalize the Lin-Wang procedure to incorporate weights and investigate the performance of Lin and Wang's test and weighted versions in various scenarios. We find that weighting does increase statistical power in certain situations; however, none of the procedures was dominant under every scenario.