GBSG2 {LongCART} | R Documentation |
German Breast Cancer Study Group 2 (source: TH.data package)
Description
A data frame containing the observations from the GBSG2 study.
Usage
data(GBSG2)
Format
A data frame with 686 observations on the following 10 variables.
horTh
hormonal therapy, a factor with levels
no
yes
age
age in years
menostat
menopausal status, a factor with levels
Pre
Post
tsize
tumor size (in mm)
tgrade
an ordered factor with levels
I
<II
<III
pnodes
number of positive nodes
progrec
progesterone receptor (in fmol).
estrec
estrogen receptor (in fmol).
time
recurrence free survival time (in days).
cens
censoring indicator (0- censored, 1- event).
References
Schumacher M, Bastert G, Bojar H, Huebner K, Olschewski M, Sauerbrei W, Schmoor C, Beyerle C, Neumann RL, Rauschecker HF. Randomized 2 x 2 trial evaluating hormonal treatment and the duration of chemotherapy in node-positive breast cancer patients. German Breast Cancer Study Group. Journal of Clinical Oncology. 1994 Oct;12(10):2086-93.
Examples
data(GBSG2)