Lima GV, Alarcón SR

Language: Spanish
References: 18
Page: 96-100
PDF size: 465.62 Kb.

ABSTRACT

Background. Although diabetic retinopathy (DR), whose prevalence in Mexican population ranges from 15 to 21%, causes visual impairment in the geriatric patient, its reported prevalence in diabetics diagnosed during geriatric age is 14%. Aim. To identify whether DR prevalence was lower in diabetics diagnosed during geriatric age, than in non-geriatric population. Methods. DR prevalence was retrospectively compared among type 2 diabetics younger than 60 years (group 1), and in diabetics diagnosed after the age of 60 (group 2), using χ², odds ratio (OR) and 95% confidence intervals (CI). Patients were paired for diabetes duration and arterial hypertension history. Results. 442 patients were evaluated; diabetes duration ranked from less than one year to 20 years (mean 4.8), 232 (52.5%) had arterial hypertension history and 60 (13.6%) DR. In group 1 (age 40-59 years, mean 50.2) 38 patients had DR (17.2%); in group 2 (age 61-97 years, mean 71.9) 22 had it (9.95%). There was a statistical difference between groups (p = 0.003, OR 0.53, 95% CI 0.29-0.97). Discussion. DR prevalence was lower than expected. In group 2, DR prevalence was lower than that described in patients with diabetes diagnosed after the age of 60 years (z =1.73, p › 0.05) and almost a half of that in group 1. Although a protective effect is suggested, it would be convenient to identify prospectively whether this difference is consistent and clinical.

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