heart2: More Stanford Heart Transplant data
Description
This contains the Stanford Heart Transplant data in a different format. The main data set is in (heart
).
Survival of patients on the waiting list for the Stanford heart transplant program. Format
A data frame with 103 observations on the following 8 variables.
times1
- time of transplant/censoring time
delta
- transplant indicator
times2
- time to death since the transplant/censoring time
time
- times1 + times2
status
- censoring indicator: dead=1, alive=0
age
- age-48 years
year
- year of acceptance; in years after 1 Nov 1967
surgery
- prior bypass surgery; 1=yes
References
J Crowley and M Hu (1977), Covariance analysis of heart transplant survival data. Journal of the American Statistical Association, 72, 27-36.