VA {MASS} | R Documentation |
Veteran's Administration lung cancer trial from Kalbfleisch & Prentice. A data frame.
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? |
The components are:
Kalbfleisch, J.D. and Prentice R.L. (1980) The Statistical Analysis of Failure Time Data.