The wesdr data frame has 669 rows and 5 columns of data
from an ongoing epidemiological study of a cohort of patients receiving their medical care in an 11-country area in southern Wisconsin.
data(wesdr)This data frame contains the following columns:
num a numeric vector giving IDs for individuals.
dur a numeric vector of duration of at baseline in year.
gly a numeric vector of glycosylated hemoglobin, a measuer of hyperglycemia.
bmi a numeric vecttor of body mass index, weight in \(kg/(height in meter)^2\).
prg a vector of 0 or 1's representing disease progression for each individual.
The progression of diabetic retinopathy was assessed together with a number of medical, demographic, ocular and other covariates and the retinopathy scores.