prostate: Data from a prostate cancer trial in Byer & Green (1980)

In cifmodeling: Visualization and Polytomous Modeling of Survival and Competing Risks

Data from a prostate cancer trial in Byer & Green (1980)

Description

Anonymized data from a randomized clinical trial of prostate cancer published in Byer & Green (1980).

Usage

data(prostate)

Format

A data frame with 502 observations and 18 variables, including:

dtime

Follow-up time in months.

status

Event status ("alive", "dead - prostatic ca", "dead - other ca", "dead - heart or vascular", "dead - cerebrovascular").

rx

Treatment assignment to diethylstilbestrol (DES) or a placebo.

age

Age at baseline (years).

wt

Weight in pounds.

pf

Performance status.

hx

History of cardiovascular disease.

sbp

Systolic blood pressure.

dbp

Diastolic blood pressure.

ekg

Electrocardiogram category.

hg

Hemoglobin level.

sz

Size of the primary tumor.

sg

Stage/grade of disease.

ap

Serum acid phosphatase.

bm

Bone metastases indicator.

stage

Clinical stage.

sdate

Start date.

patno

Patient number.

Details

The dataset records follow-up for cause of death together with treatment assignment and baseline characteristics. It is used in the package documentation to illustrate stratified cumulative incidence analyses.

Source

Byer, D. P. & Green, S. B. (1980), 'Prognostic variables for survival in a randomized comparison of treatments for prostatic cancer', Bulletin du Cancer 67, 477-488

Examples

data(prostate)
head(prostate)

cifmodeling documentation built on Nov. 11, 2026, 9:06 a.m.