Diabetic retinopathy (DR) is one of the microvascular complication in diabetes mellitus (DM). Glycosylated hemoglobin (HbA1c) is an indicator that reflects the percentage of blood glucose tied to hemoglobin for the past three months. This study aims to determine if a high level of HbA1c increases the prevalence of proliferative diabetic retinopathy. Cross-sectional study. The participants were DM patients who were diagnosed with PDR and NPDR for the first time and HbA1c level was checked in the laboratory. Of the 74 participants, 37 participants were PDR, and 37 participants were NPDR. The ratio of prevalence (PR) was 3.87, with Confident of Interval (CI 95%): 1.96-7.67 and p < 0.001. Multivariate analysis shows Odd Ratio (OR) of HbA1c is 18.319 (5.334-62.919) and p < 0.001. High level of HbA1c as a risk factor of high prevalence of PDR.
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