• Eun-Kyong Kim, Sohee Kang, and Eun Young Park.
• Department of Dental Hygiene, College of Science and Technology, Kyungpook National University, Sangju, South Korea.
• Medicine (Baltimore). 2022 Nov 25; 101 (47): e31729e31729.

AbstractThe association between periodontitis and diabetes have been assessed by many cross-sectional studies, in which controlling confounding factors is important. Propensity score matching (PSM) may help address this issue. Therefore, we evaluated this relationship in a (PSM) analysis of individuals representing the general Korean population. Periodontitis was significantly associated with diabetes before PSM (odds ratio [OR] = 1.53; 95 % confidence interval (CI) = 1.31-1.80) and after PSM (OR = 1.52; 95 % CI = 1.28-1.80). This study showed the association between periodontitis and diabetes using PSM, suggesting that periodontitis may be positively related with diabetes. We included 9508 adults who were aged ≥ 19 years from the Korea National Health and Nutrition Examination Survey VII (2016-2018) and performed logistic regression analyses before and after PSM. The PSM was based on periodontal disease (yes or no) using a 1:1 match ratio and included 5858 individuals (2929 per group). Confounding variables, such as age, sex, marital status, occupation, education, income, smoking and drinking habits, obesity, hypertension, hypercholesterolemia, and hypertriglyceridemia, were matched and adjusted in the logistic regression analysis.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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