R: The Diabetic Retinopathy Data

diabetes {timereg} | R Documentation

## The Diabetic Retinopathy Data

### Description

The data was colleceted to test a laser treatment for delaying blindness in patients with dibetic retinopathy. The subset of 197 patiens given in Huster et al. (1989) is used.

### Format

This data frame contains the following columns:

id

  a numeric vector. Patient code.

agedx

  a numeric vector. Age of patient at diagnosis.

time

  a numeric vector. Survival time: time to blindness or censoring.

status

  a numeric vector code. Survival status. 1: blindness, 0: censored.

trteye

  a numeric vector code. Random eye selected for treatment. 1: left eye 2: right eye.

treat

  a numeric vector. 1: treatment 0: untreated.

adult

  a numeric vector code. 1: younger than 20, 2: older than 20.

### Source

Huster W.J. and Brookmeyer, R. and Self. S. (1989) MOdelling paired survival data with covariates, Biometrics 45, 145-56.

### Examples

    data(diabetes)
    names(diabetes)

[Package timereg version 1.9.4 Index]