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Association between Obesity and Periodontitis in Korean
Int J Clin Prev Dent 2019;15(1):11-18
Published online March 30, 2019;  https://doi.org/10.15236/ijcpd.2019.15.1.11
© 2019 International Journal of Clinical Preventive Dentistry.

Seon-Ju Sim

Department of Dental Hygiene, Baekseok University, Cheonan, Korea
Correspondence to: Seon-Ju Sim, E-mail: vision1991@bu.ac.kr, https://orcid.org/0000-0002-6360-187X
Received January 3, 2019; Accepted March 25, 2019.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Objective: Obesity is a major public health concern worldwide. Periodontitis is a major oral health problem and was reported to be associated with obesity. So, the present study aimed to examine the association between obesity and periodontitis in Korean.
Methods: The study used data from 2010 to 2015 the Korea National Health and Nutrition Examination Survey. A dependent variable, periodontitis, was decided as community periodontal index 3. Obesity was defined as body mass index (BMI), and independent variables are socioeconomic variables (sex, age, residence, economic status, education levels, and occupation), health-related variables (drinking, smoking, and hypertension, diabetes, stress, physical activity), and oral health-related variables were collected. Multiple logistic regression analysis was used to evaluate the association between obesity and periodontitis.
Results: In males, 26.5% were overweight and 39.1% were obese. In females, 22.8% were overweight and 30.7% were obese. The higher the BMI was, the lower socioeconomic status was. Periodontitis war higher among them with the lower economic level, the lower education, hypertension and diabetes, and stress. Moreover, periodontitis was significantly associated with obesity in multivariate logistic analyses. The odds ratio (OR) (95% confidence interval [CI]) was 1.28 (95% CI, 1.18-1.39) with adjusted for confounders. This OR increased in female (OR [95% CI], 1.39 [1.22-1.56]).
Conclusion: This study demonstrates that obesity is closely associated with oral status, especially with periodontitis in Korean adults. This association was strong in female. Therefore, integrated intervention programs are required to prevent obesity and periodontits for Koreans on a national scale by sex.
Keywords : obesity, periodontitis, social class, Korean, sex
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March 2019, 15 (1)