prostate {npsm}

DES for treatment of prostate cancer.

Description

Under investigation in this clinical trial was the pharmaceutical agent diethylstilbestrol DES; subjects were assigned treatment to 1.0 mg DES (treatment = 2) or to placebo (treatment = 1).

Usage

data(prostate)

Format

A data frame with 38 observations on the following 8 variables.

patient

a numeric vector

treatment

a numeric vector

time

a numeric vector

status

a numeric vector

age

a numeric vector

shb

a numeric vector

size

a numeric vector

index

a numeric vector

Source

http://www.crcpress.com/product/isbn/9781584883258

References

Collett, D. (2003) Modeling survival data in medical research CRC press.

Examples

data(prostate)
boxplot(size~treatment,data=prostate)