Diabetic Retinopathy and Nephropathy in Type 2 Diabetes: A Case-Control Study

Abstract

Diabetic retinopathy (DR) and nephropathy (DN) are major microvascular complications of type 2 diabetes (T2DM) that significantly contribute to morbidity and mortality. This case-control study aimed to investigate the association between diabetic retinopathy and nephropathy in individuals with type 2 diabetes. The study compared 100 cases with both DR and DN to 100 controls with neither condition. We evaluated clinical parameters, including blood glucose control, blood pressure, duration of diabetes, lipid profiles, and renal function. Results showed a significant correlation between the presence of DR and DN, with patients having both conditions exhibiting worse glycemic control, higher blood pressure, and longer diabetes duration compared to controls. The findings underscore the importance of early screening for both retinopathy and nephropathy in individuals with type 2 diabetes, as these conditions often coexist and may share common risk factors. Moreover, tight glycemic and blood pressure control was found to be crucial in mitigating the development of these complications. This study emphasizes the need for integrated management strategies targeting both retinopathy and nephropathy to reduce the burden of diabetic microvascular complications.

Keywords: Diabetic retinopathy, nephropathy, type 2 diabetes, case-control study, microvascular complications, blood glucose control, hypertension.