Partial results from a trial of laser coagulation for the treatment of diabetic retinopathy.
A data frame with 394 observations on the following 9 variables.
subject id
laser type: xenon or argon
age at diagnosis
a factor with levels of left right
treatment: 0 = no treatment, 1= laser
risk group of 6-12
time to event or last follow-up
status of 0= censored or 1 = visual loss
References
Huster, Brookmeyer and Self, Biometrics, 1989.
American Journal of Ophthalmology, 1976, 81:4, pp 383-396
Use the following R code to directly access this dataset in R.
