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.