gbsg {mfp2}

Breast cancer dataset used in the Royston and Sauerbrei (2008) book.

Description

Breast cancer dataset used in the Royston and Sauerbrei (2008) book.

Usage

data(gbsg)

Format

A dataset with 686 observations and 11 variables.

id

Patient identifier.

age

Age in years.

meno

Menopausal status (0 = premeno, 1 = postmeno).

size

Tumor size (mm).

grade

Tumor grade.

nodes

Number of positive lymph nodes.

enodes

exp(-0.12*nodes).

pgr

Progesterone receptor status.

er

Estrogen receptor status.

hormon

Tamoxifen treatment.

rectime

Time (days) to death or cancer recurrence.

censrec

Censoring (0 = censored, 1 = event).