Association between survival time and ordinal covariates

Chap T Le, P. M. Grambsch, T. A. Louis

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

An application of the method of rank correlation is proposed for testing independence between a censored survival time and an ordinal covariate. The test statistic counts the number of concordances minus the number of discordances at each time with event(s) and adds across times; it is expressible as a score statistic within the proportional hazards framework. The proposed test includes as a special case, a generalization of Jonekheere's test against ordered alternatives and as applied to the analysis of categorical data, it can be seen as a generalization of the Mantel- Haenszel procedure.

Original languageEnglish (US)
Pages (from-to)213-219
Number of pages7
JournalBiometrics
Volume50
Issue number1
DOIs
StatePublished - Jan 1 1994

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