The efficiency of a weighted log-rank test under a percent error misspecification model for the log hazard ratio

D. M. Zucker*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

For comparison of two survival distributions, it is natural to use a weighted log-rank test with weight function given by the log hazard ratio function that is anticipated a priori. This paper investigates the efficiency of this test when the a priori estimate of the log hazard ratio is subject to a specified percentage error. The test is shown to be the maximin efficiency robust test over the class of alternatives in question and a simple expression for the maximin efficiency is established.

Original languageAmerican English
Pages (from-to)893-899
Number of pages7
JournalBiometrics
Volume48
Issue number3
DOIs
StatePublished - 1992

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