• Carol Quintana, Juan Pablo Márquez, María Kappes, María Teresa Silva, and Jessica Navarro.
• Facultad de Ciencias para el cuidado de la Salud, Universidad San Sebastián, Puerto Montt, Chile.
• Rev Med Chil. 2023 Feb 1; 151 (1): 7147-14.

BackgroundDiabetic retinopathy (DR) is an important cause of decreased visual acuity, whose prevalence has increased between 1990 and 2020. In Chile the prevalence of diabetic retinopathy was estimated at 24.8%.AimTo assess the prevalence of DR in a southern Chilean city.Material And MethodsFrom a database of diabetic patients attending primary health care centers at Puerto Montt, Chile, 196 patients with DR and 392 patients without DR, matched by age and presence of chronic complications, were chosen for this case-control study.ResultsThe prevalence of DR in the database of diabetic patients was 33.3%. glycated hemoglobin, the frequency insulin use, systolic blood pressure, HDL cholesterol, microalbuminuria, and proteinuria were significantly worse in cases. A multivariate analysis showed that retinopathy is much more likely to occur when the variables insulin use, neuropathy, and microalbuminuria concur.ConclusionsDR was associated with worse metabolic parameters and the presence of neuropathy in this case control study.

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