Bivariate versus univariate ordinal categorical data with reference to an ophthalmologic study
Bivariate versus univariate ordinal categorical data with reference to an ophthalmologic study
The Wisconsin Epidemiologic Study of Diabetic Retinopathy is a population-based epidemiological study carried out in Southern Wisconsin during the 1980s. The resulting data were analysed by different statisticians and ophthalmologists during the last two decades. Most of the analyses were carried out on the baseline data, although there were two …