Veteran's Administration lung cancer trial.

Description

Veteran's Administration lung cancer trial from Kalbfleisch & Prentice.

Format

A data frame with columns:

stime

survival or follow-up time in days.

status

dead or censored.

treat

standard or test

age

patient's age in years

Karn

Karnofsky score of patient's performance on a scale of 0 to 100.

diag.time

times since diagnosis in months at entry to trial.

cell

one of four cell types.

prior

prior therapy?

Source

Kalbfleisch, J.D. and Prentice R.L. (1980) The Statistical Analysis of Failure Time Data.