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WR (version 1.0)

gbc: A subset of the German Breast Cancer study data

Description

These are a subset of the German Breast Cancer study data.

Usage

gbc

Arguments

Format

A data frame with 985 rows and 12 variables:

id

subject IDs

time

event times (months)

status

event status; 0:censoring, 1:death, 2:cancer recurrence

hormone

treatment indicator: 1=Hormone therapy; 2=standard therapy

age

age at diagnosis (years)

menopause

menopausal Status; 1=No; 2=Yes

size

tumor size

grade

tumor grade, 1-3

nodes

number of nodes involved

prog_recp

number of progesterone receptors

estrg_recp

number of estrogen receptors

References

Sauerbrei, W., Royston, P., Bojar, H., Schmoor, C. and Schumacher, M. (1999). Modelling the effects of standard prognostic factors in node-positive breast cancer. German Breast Cancer Study Group (GBSG). British Journal of Cancer, 79, 1752<U+2013>1760.

Hosmer, D.W. and Lemeshow, S. and May, S. (2008) Applied Survival Analysis: Regression Modeling of Time to Event Data: Second Edition, John Wiley and Sons Inc., New York, NY