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목적 : To investigate the relationship between the number of teeth and diabetic retinopathy among Korean population.
방법 : This was a retrospective analysis using data of total 45,811 individuals who participated in the Korea National Health and Nutrition Examination Survey (KNHANES) 2008-2012. Among these, 2593 (5.7%) participants were identified as having type 2 diabetes mellitus. After excluding participants without ophthalmic evaluation or other variables, 2078 (80%) participants were included. Demographic factors including dental status were analyzed and compared between participants with and without diabetic retinopathy.
결과 : Among the 2078 participants, 358 (17.2%) had diabetic retinopathy. Participants with fewer teeth were more likely to have diabetic retinopathy (p<0.001). Multivariate analysis showed that participants with <20 teeth had an 8.7-fold risk of having vision-threatening diabetic retinopathy when compared to participants with ≥28 teeth (95% confidence interval: 2.69-28.3) after adjusting for age, sex, body mass index, smoking, drinking, exercise, hypertension, diabetes duration, and glycated hemoglobin level.
결론 : The number of teeth was found to be an independent risk factor for diabetic retinopathy. Thus, a comprehensive approach of dentists and ophthalmologists is needed to minimize the complications of diabetes. Whether the teeth number reflects microvascular changes of the retina among diabetic patients warrants further investigation.
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