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Article
April 1984

The Wisconsin Epidemiologic Study of Diabetic RetinopathyIII. Prevalence and Risk of Diabetic Retinopathy When Age at Diagnosis Is 30 or More Years

Author Affiliations

From the Departments of Ophthalmology (Drs R. Klein, B. Klein, and Davis and Mr Moss) and Statistics (Dr DeMets), University of Wisconsin Medical School, Madison.

Arch Ophthalmol. 1984;102(4):527-532. doi:10.1001/archopht.1984.01040030405011
Abstract

• In a population-based study in southern Wisconsin, 1,370 patients given diagnoses of diabetes at age 30 years or older were examined using standard protocols to determine the prevalence and severity of diabetic retinopathy and associated risk variables. The prevalence of diabetic retinopathy varied from 28.8% in persons who had diabetes for less than five years to 77.8% in persons who had diabetes for 15 or more years. The rate of proliferative diabetic retinopathy varied from 2.0% in persons who had diabetes for less than five years to 15.5% in persons who had diabetes for 15 or more years. By using the Cox regression model, the severity of retinopathy was found to be related to longer duration of diabetes, younger age at diagnosis, higher glycosylated hemoglobin levels, higher systolic BP, use of insulin, presence of proteinuria, and small body mass.

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