Do retinopathy signs in non-diabetic individuals predict the subsequent risk of diabetes?
- 1 Retinal Vascular Imaging Centre, Centre for Eye Research Australia, University of Melbourne, VIC, Australia
- 2Singapore Eye Research Institute, National University of Singapore, Singapore
- 3Department of Ophthalmology, University of Wisconsin, Madison, WI, USA
- 4Department of Biostatistics, University of North Carolina, Chapel Hill, NC, USA
- Correspondence to: Tien Y Wong MD, PhD, Centre for Eye Research Australia, 32 Gisborne Street, VIC 3002, Australia; twong{at}unimelb.edu.au
- Accepted 2 November 2005
Abstract
Background/aims: Isolated retinopathy signs are common in non-diabetic individuals and have been shown to be associated with impaired glucose metabolism. In a cohort of people without diabetes, the association of these retinopathy signs and subsequent development of diabetes were examined.
Methods: A population based cohort study of 7992 people aged 49–73 years without diabetes was conducted. Retinal photographs of these participants were evaluated for the presence of retinopathy signs according to a standardised protocol. Incident cases of diabetes were identified prospectively.
Results: After a follow up of 3 years, 291 (3.6%) people developed incident diabetes. In the total cohort, retinopathy was not significantly associated with incident diabetes (4.7% v 3.6%, multivariable adjusted odds ratio (OR) 1.1, 95% confidence intervals (CI), 0.7 to 1.9). However, among participants with a positive family history of diabetes, retinopathy was associated with incident diabetes (10.4% v 4.8%, multivariable adjusted OR 2.3, 95% CI, 1.0 to 5.3). Among participants without a family history of diabetes, retinopathy was not associated with incident diabetes
Conclusions: In individuals with a family history of diabetes, retinopathy signs predict subsequent risk of clinical diabetes.
Footnotes
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Competing interests: none declared







