bc: Breast cancer survival data
Description
Survival times of 686 patients with primary node positive breast
cancer.format
A data frame with 686 rows.
rll{
censrec (numeric) 1=dead, 0=censored
rectime (numeric) Time of death or censoring in days
group (numeric) Prognostic group:
"Good","Medium" or "Poor",
from a regression model developed by
Sauerbrei and Royston (1999).
}source
German Breast Cancer Study Group, 1984-1989. Used as a reference
dataset for the spline-based survival model of Royston and Parmar
(2002), implemented here in flexsurvspline. Originally
provided with the stpm (Royston 2001, 2004) and stpm2
(Lambert 2009, 2010) Stata modules.References
Royston, P. and Parmar, M. (2002). Flexible parametric
proportional-hazards and proportional-odds models for censored survival
data, with application to prognostic modelling and estimation of
treatment effects. Statistics in Medicine 21(1):2175-2197.
Sauerbrei, W. and Royston, P. (1999). Building multivariable prognostic
and diagnostic models: transformation of the predictors using
fractional polynomials. Journal of the Royal Statistical Society,
Series A 162:71-94.