VETERAN {OSTE}

Data on randomized trial of two treatment procedures for lung cancer.

Description

The data set consist of a total 137 observations on 8 variables. The variables consist of the type of lung cancer treatment i.e 1 (standard) and 2 (test drug), cell Type, Status, that denotes the status of the patient as 1 (dead) or 0 (alive), survival time in days since the treatment, Diag, the time since diagnosis in months, age in years, the Karnofsky score, therapy that denotes any prior therapy 0 (none), 1 (yes).

Usage

data("VETERAN")

Format

A data frame with 137 observations on the following 8 variables.

trt

a numeric vector denoting type of lung cancer treatment i.e 1 (standard) and 2 (test drug).

celltype

a factor with levels squamous, smallcell, adeno and large.

time

a numeric vector denoting survival time in days since the treatment.

status

a numeric vector that denotes the status of the patient as 1 (dead) or 0 (alive).

karno

a numeric vector denoting the Karnofsky score.

diagtime

a numeric vector denoting the time since diagnosis in months.

age

age in years.

prior

a numeric vector denoting prior therapy; 0 (none), 1 (yes).

References

Therneau T (2015). A Package for Survival Analysis in S. version 2.38, <URL: https://CRAN.R-project.org/package=survival>.

Terry M. Therneau and Patricia M. Grambsch (2000). Modeling Survival Data: Extending the Cox Model. Springer, New York. ISBN 0-387-98784-3

Examples

#To load the data
data(VETERAN)
# To see the structure
str(VETERAN) 
#etc.