Learn R Programming

gsscopu (version 0.9-3)

DiaRet: Diabetic Retinopathy

Description

Time to blindness of 197 diabetic retinopathy patients who received a laser treatment in one eye.

Usage

data(DiaRet)

Arguments

Format

A data frame containing 197 observations on the following variables.
id
Patient ID.
time1
Follow-up time of left eye.
time2
Follow-up time of right eye.
status1
Censoring indicator of left eye.
status2
Censoring indicator of right eye.
trt1
Treatment indicator of left eye.
trt2
Treatment indicator of right eye.
type
Type of diabetes.
age
Age of patient at diagnosis.
time.t
Follow-up time of treated eye.
time.u
Follow-up time of untreated eye.
status.t
Censoring indicator of treated eye.

Source

This is reformatted from the data frame diabetes in the R package timereg by Thomas H. Scheike.

References

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