GBSG2 | R Documentation |
A data frame containing the observations from the GBSG2 study.
data(GBSG2)
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).
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.
data(GBSG2)
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