Name:

Description:

A trial of laser coagulation as a treatment to delay diabetic retinopathy.

Variables:

A data frame with 394 observations on the following 10 variables.

id

numeric subject id

laser

type of laser used: xenon argon

eye

which eye was treated: right left

age

age at diagnosis of diabetes

type

type of diabetes: juvenile adult, (diagnosis before age 20)

trt

0 = control eye, 1 = treated eye

futime

time to loss of vision or last follow-up

status

0 = censored, 1 = loss of vision in this eye

risk

a risk score for the eye. This high risk subset is defined as a score of 6 or greater in at least one eye.

Link To Google Sheets:

Rows:

Columns:

Files:

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References/Notes/Attributions:

References

W. J. Huster, R. Brookmeyer and S. G. Self (1989). Modelling paired survival data with covariates, Biometrics 45:145-156.

A. L. Blair, D. R. Hadden, J. A. Weaver, D. B. Archer, P. B. Johnston and C. J. Maguire (1976). The 5-year prognosis for vision in diabetes, American Journal of Ophthalmology, 81:383-396.

R Dataset Upload:

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