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Prevalence of retinopathy differs with age at onset of diabetes in a population of patients with Type 1 diabetes
Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Cell biology. Östergötlands Läns Landsting, MKC - Medicin och kirurgicentrum, EMK-endokrin.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Ophthalmology. Östergötlands Läns Landsting, Reconstruction Centre, Department of Ophthalmology UHL/MH.
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2002 (English)In: Diabetic Medicine, ISSN 0742-3071, Vol. 19, no 11, 924-931 p.Article in journal (Refereed) Published
Abstract [en]

Aim. The VISS study (Vascular complications in South-east Sweden) investigates prevalence and incidence of vascular complications in a population with Type 1 diabetes, from a well-defined geographical area and followed from diag-nosis with HbA1c measurement. Method. The study population comprised all 440 patients with Type 1 diabetes onset before the age of 36 years, onset during 1983-1987, and at the time of onset living within the counties of J÷nk÷ping, Kalmar or ╓sterg÷tland. Retinopathy was examined with fundus photography 1994-1995, and classified according to a modified Airlie House protocol. Results. Fundus photographs from 390 patients were evaluated. In 277 (71%) patients no retinopathy was seen. The prevalence of retinopathy increased from 11% among patients < 5 years old at diabetes onset, to 48% among those 15-19 years old at diabetes onset, and then decreased to 30% for patients 30-35 years old at diabetes onset (P for ?2 for linear trend for all ages 0.017, for age at onset 0-19 yearsP = 0.0003), without corresponding differences in duration or HbA1c between patients with different onset age. Patients with HbA1c in the highest quartile (> 8.3% HbA1c) had a relative risk of 2.4 (95% confidence) interval (CI) 1.7-3.2) of having any retinopathy compared with patients with lower HbA1c, and a relative risk of 7.1 (95% CI 3.0-16.7) of having other forms of retinopathy than microaneurysms. Conclusion. In patients with diabetes duration of 6-13 years, the prevalence of retinopathy is clearly related to glycaemic control. Furthermore, the risk of retinopathy varies with different age at onset, independently of differences in duration or glycaemic control.

Place, publisher, year, edition, pages
2002. Vol. 19, no 11, 924-931 p.
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Medical and Health Sciences
URN: urn:nbn:se:liu:diva-24912DOI: 10.1046/j.1464-5491.2002.00839.xLocal ID: 9315OAI: diva2:245235
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2011-01-13

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Arnqvist, HansFinnström, KerstinLudvigsson, Johnny
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Faculty of Health SciencesCell biologyEMK-endokrinOphthalmologyDepartment of Ophthalmology UHL/MHPediatricsBarn
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