gehan: Remission times of acute leukemia patients - Gehan et al

In SMIR: Companion to Statistical Modelling in R

Description

Data from a clinical trial which compared 6-mercaptopurine (6-MP) to a placebo in the maintenance of remissions in acute leukemia. The remission times in weeks one year after the start of the study were recorded. Participants were paired according to remission status, an aspect not described in Gehan (1965).

Usage

data(gehan)

Format

A dataframe containing 42 obs. of 5 variables:

[1,]	pair	numeric defining pair according to remission status
[2,]	time	numeric time to remission available at the time the trial was stoppped
[3,]	cens	numeric "0" indicating censored ,"1" uncensored
[4,]	treat	factor w/ 2 levels "6-MP", "control"

Note

See Ch. 6 of SMIR

Source

Gehan, E. A. (1965), "A generalized Wilcoxon test for comparing arbitrarily singly-censored samples", Biometrika, 52, 203–233.

SMIR documentation built on May 29, 2017, 10:39 a.m.