Remission Times of Leukaemia Patients

SUMMARY:

A data frame from a trial of 42 leukaemia patients. Some were treated with the drug 6-mercaptopurine and the rest are controls. The trial was designed as matched pairs, both withdrawn from the trial when either came out of remission.

DATA DESCRIPTION:

This data frame contains the following columns:

ARGUMENTS:

pair
label for pair
time
remission time in weeks
cens
censoring, 0/1
treat
treatment, control or 6-MP

SOURCE:

Cox, D. R. and Oakes, D. (1984) Analysis of Survival Data. Chapman & Hall, p. 7. Taken from

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

EXAMPLES:

gehan.surv <- survfit(Surv(time, cens) ~ treat, data=gehan,
     conf.type="log-log")
summary(gehan.surv)
survreg(Surv(time, cens) ~ factor(pair) + treat, gehan, dist="exp")
summary(survreg(Surv(time, cens) ~ treat, gehan, dist="exp"))
summary(survreg(Surv(time, cens) ~ treat, gehan))
gehan.cox <- coxph(Surv(time, cens) ~ treat, gehan)
summary(gehan.cox)