gbsg

The <code>gbsg</code> data set contains patient records from a 1984-1989 trial 
conducted by the German Breast Cancer Study Group (GBSG) of 720 patients
with node positive breast cancer; it retains the 686 patients with 
complete data for the prognostic variables.

datasets

survival

Contains the core survival analysis routines, including
definition of Surv objects,
Kaplan-Meier and Aalen-Johansen (multi-state) curves, Cox models,
and parametric accelerated failure time models.

Terry Therneau

Survival Analysis

Thomas Lumley

Atkinson Elizabeth

Crowson Cynthia

gbsg function

A data set with 686 observations and 11 variables.<dl class="dl-horizontal">
 <dt><code>pid</code></dt><dd>patient identifier</dd>
 <dt><code>age</code></dt><dd>age, years</dd>
 <dt><code>meno</code></dt><dd>menopausal status (0= premenopausal, 1= postmenopausal)</dd>
 <dt><code>size</code></dt><dd>tumor size, mm</dd>
 <dt><code>grade</code></dt><dd>tumor grade</dd>
 <dt><code>nodes</code></dt><dd>number of positive lymph nodes</dd>
 <dt><code>pgr</code></dt><dd>progesterone receptors (fmol/l)</dd>
 <dt><code>er</code></dt><dd>estrogen receptors (fmol/l)</dd>
 <dt><code>hormon</code></dt><dd>hormonal therapy, 0= no, 1= yes</dd>
 <dt><code>rfstime</code></dt><dd>recurrence free survival time; days to first of reccurence, death or last follow-up</dd>
 <dt><code>status</code></dt><dd>0= alive without recurrence, 1= recurrence or
death</dd>
</dl>

Format

Breast cancer data sets used in Royston and Altman (2013) — gbsg

A data set with 686 observations and 11 variables.<dl class='dl-horizontal'>
 <dt><code>pid</code></dt><dd>patient identifier</dd>
 <dt><code>age</code></dt><dd>age, years</dd>
 <dt><code>meno</code></dt><dd>menopausal status (0= premenopausal, 1= postmenopausal)</dd>
 <dt><code>size</code></dt><dd>tumor size, mm</dd>
 <dt><code>grade</code></dt><dd>tumor grade</dd>
 <dt><code>nodes</code></dt><dd>number of positive lymph nodes</dd>
 <dt><code>pgr</code></dt><dd>progesterone receptors (fmol/l)</dd>
 <dt><code>er</code></dt><dd>estrogen receptors (fmol/l)</dd>
 <dt><code>hormon</code></dt><dd>hormonal therapy, 0= no, 1= yes</dd>
 <dt><code>rfstime</code></dt><dd>recurrence free survival time; days to first of reccurence, death or last follow-up</dd>
 <dt><code>status</code></dt><dd>0= alive without recurrence, 1= recurrence or
death</dd>
</dl>

gbsg: Breast cancer data sets used in Royston and Altman (2013)

Description

Usage

Arguments

Format

Details

References

See Also