PMID- 23193204 OWN - NLM STAT- MEDLINE DCOM- 20130904 LR - 20221207 IS - 1935-5548 (Electronic) IS - 0149-5992 (Print) IS - 0149-5992 (Linking) VI - 36 IP - 3 DP - 2013 Mar TI - Assessing progress in retinopathy outcomes in type 1 diabetes: comparing findings from the Wisconsin Diabetes Registry Study and the Wisconsin Epidemiologic Study of Diabetic Retinopathy. PG - 631-7 LID - 10.2337/dc12-0863 [doi] AB - OBJECTIVE: The Wisconsin Diabetes Registry Study (WDRS) cohort consisted of patients diagnosed with type 1 diabetes in the same geographic region as, but 8-34 years later than the Wisconsin Epidemiologic Study of Diabetic Retinopathy (WESDR) cohort, providing a unique opportunity to assess changes in complications. We estimated the current prevalence and severity of diabetic retinopathy at 20 years of diabetes duration, compared these between eras, and evaluated the influence of diabetes management. RESEARCH DESIGN AND METHODS: Twenty-year examinations, including fundus photographs, were completed on 305 WDRS subjects during 2007-2011. A subgroup of the WESDR cohort participated in one of four study visits during 1980-1996, at similar diabetes duration (n = 583). Adjusted ordinal logistic regression with three retinopathy severity categories was used to estimate odds ratios (ORs) of more severe retinopathy with diagnosis during an earlier era. RESULTS: Mean hemoglobin A(1c) (HbA(1c)) was lower in WDRS than in WESDR (8.0% vs. 9.3% [P < 0.001], and 93.4% vs. 21.3% [P < 0.001]) used >/=3 daily insulin injections or an insulin pump. In WDRS, 18% had vision-threatening levels of retinopathy vs. 43% in WESDR. The adjusted OR of more severe retinopathy in the earlier era (OR 3.0 [95% CI 2.2-4.0]) was reduced by including 20-year HbA(1c) in the model (OR 2.2 [1.6-3.0]). CONCLUSIONS: Retinopathy severity at a diabetes duration of 20 years is lower in the more recent era of type 1 diabetes. Updated projections should be used when informing newly diagnosed individuals of prognosis and for health care cost assessments. Current glycemic control explained a limited amount of the difference. FAU - LeCaire, Tamara J AU - LeCaire TJ AD - Department of Population Health Sciences School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA. FAU - Palta, Mari AU - Palta M FAU - Klein, Ronald AU - Klein R FAU - Klein, Barbara E K AU - Klein BE FAU - Cruickshanks, Karen J AU - Cruickshanks KJ LA - eng GR - R01 DK036904/DK/NIDDK NIH HHS/United States GR - R01 EY016379/EY/NEI NIH HHS/United States GR - R01-DK036904/DK/NIDDK NIH HHS/United States GR - R01-EY016379/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20121127 PL - United States TA - Diabetes Care JT - Diabetes care JID - 7805975 RN - 0 (Glycated Hemoglobin A) SB - IM MH - Adult MH - Diabetes Mellitus, Type 1/complications/*epidemiology/metabolism/*pathology MH - Diabetic Retinopathy/*epidemiology/etiology/metabolism/*pathology MH - Female MH - Glycated Hemoglobin/metabolism MH - Humans MH - Male MH - Registries MH - Wisconsin/epidemiology MH - Young Adult PMC - PMC3579344 EDAT- 2012/11/30 06:00 MHDA- 2013/09/05 06:00 PMCR- 2014/03/01 CRDT- 2012/11/30 06:00 PHST- 2012/11/30 06:00 [entrez] PHST- 2012/11/30 06:00 [pubmed] PHST- 2013/09/05 06:00 [medline] PHST- 2014/03/01 00:00 [pmc-release] AID - dc12-0863 [pii] AID - 0863 [pii] AID - 10.2337/dc12-0863 [doi] PST - ppublish SO - Diabetes Care. 2013 Mar;36(3):631-7. doi: 10.2337/dc12-0863. Epub 2012 Nov 27.