ulcer: Recurrence of an ulcer

In collett: Datasets from "Modelling Survival Data in Medical Research" by Collett

Recurrence of an ulcer

Description

A double-blind trial comparing two treatments for ulcers. Data from Belgium.

Usage

ulcer

Format

A data frame with 43 rows and 6 variables:

patient

integer patient id

age

integer age at the end of the trial in years

duration

integer duration of verified disease (1: <5 years, 2: >=5 years

treatment

integer treatment arm (1=A,2=B)

time

integer time since last visit (months)

result

integer result of the last visit (1=no ulcer detected, 2=ulcer detected)

Details

See Collett (2023)

collett documentation built on April 3, 2025, 5:53 p.m.