pensim (version 1.3.6)

beer.survival: Survival data for Beer et al. (2002) lung adenocarcinoma study

Description

Overall survival time for 86 lung adenocarcinoma patients, with 62 of the 86 events being censored.

Usage

data(beer.survival)

Format

A data frame with 86 observations on the following 2 variables.

status

a numeric vector

os

a numeric vector

Examples

data(beer.survival)
library(survival)
surv.obj <- with(beer.survival, Surv(os, status))
surv.obj.rev <- with(beer.survival, Surv(os, 1-status))
survfit(surv.obj.rev~1)  #reverse KM estimate of follow-up time (months)
(my.survfit <- survfit(surv.obj~1))  ##KM estimate of survival
plot(my.survfit, xlab="Time (months)", 
     ylab="KM estimate of overall survival")
legend("bottomright", lty=c(1, 2), pch=-1,
       legend=c("KM estimate", "95 percent confidence interval"))