Body mass index and retinopathy in type 1 diabetic patients

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Aim . To investigate whether body mass index (BMI) independently or in correlation with other risk factors is associated with diabetic retinopathy (DR) progression. Methods. The study included 176 patients with type 1 diabetes divided into three groups according to DR status: group 1 (no retinopathy; n=86 ), group 2 (mild/moderate nonproliferative DR; n=33 ), and group 3 (severe/very severe NPDR or proliferative DR; n=57 ). Results . A significant deterioration of HbA 1 c, an increase in total cholesterol, systolic, diastolic blood pressure, and diabetic nephropathy with the progression of retinopathy were found. DR progression was correlated with diabetes duration, HbA 1 c, hypertension, total cholesterol, and the presence of nephropathy. In patients without nephropathy, statistical analyses showed that progression of retinopathy increased significantly with higher BMI (gr. 1: 24.03 ± 3.52, gr. 2: 25.36 ± 3.44, gr. 3: 26.93 ± 3.24; P<0.01 ). A positive correlation between BMI and a significant deterioration of HbA 1 c, an increase in cholesterol, triglycerides, and hypertension was observed. Conclusion . BMI in correlation with HbA 1 c, cholesterol, and hypertension appears to be associated with the progression of DR in type 1 diabetic patients without nephropathy. However, additional studies are required to investigate the pathogenic role of obesity and weight loss in retinal diabetic complications particularly relating to nephropathy.




Kaštelan, S., Salopek Rabatić, J., Tomić, M., Gverović Antunica, A., Ljubić, S., Kaštelan, H., … Orešković, D. (2014). Body mass index and retinopathy in type 1 diabetic patients. International Journal of Endocrinology, 2014.

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