| Objective: To evaluate the correlation between diabetic retinopathy (DR) and periodontal disease in patients with type-2 diabetes mellitus(T2DM). Methods: 79 inpatients with T2DM from September 2009 to February 2010 were enlisted. All selected samples were examined for the presence of DR and periodontal disease, and clinical data were collected including age, gender, diabetes duration, treatment, glycosylated hemoglobinA1c(HbA1c), history of smoking, urinary albumin excretion rate(UAER), history of high blood pressure. SPSS version 16.0 was used for data entry and analysis. Theχ2 test, t-test and logistic regression were performed. Results: Thirty-seven (47.44%) patients showed DR and thirty-five (44.87%) patients suffered from periodontal disease. The frequency of DR in patients with periodontal disease (22cases, 62.86%) was significantly greater than in patients without periodontal disease (15cases, 34.88%) (χ2= 6.055, P=0.014). Diabetic retinopathy (DR) showed a statistically significant association with periodontal disease (P=0.021,OR=4.742, 95%CI=1.268-17.730) and diabetes duration(P=0.000,OR=15.266, 95%CI=4.025-57.905). Conclusion: Our study further surports that periodontal disease might be used as a sign of diabetic retinopathy, and the patients with periodontal disease are more likely to have suffered from diabetic retinopathy. |