Evaluation of an association between long sleep duration and periodontal disease among men and women using nationally representative data.

OBJECTIVE: To assess the association between long sleep duration and periodontal disease among men and women using nationally representative data.

METHODS: In this study, we performed a cross-sectional analysis and used multivariable logistic regression analysis models. We analysed data from 2012 through 2014 from the Korean National Health and Nutrition Examination Survey. The analysis in this study was confined to a total of 14,675 respondents over 19 years of age. We used a community periodontal index code greater than or equal to 3 to define periodontitis.

RESULTS: The tendency of periodontitis increased with longer sleep duration in women. Compared with women who slept 5hours or less, women with a sleep duration of 6 to 8hours and 9hours or more had higher odds of periodontitis at 1.29 (95% confidence interval [95%CI]: 1.06-1.56) and 1.45 (95%CI: 1.07-1.96), respectively, after adjustment for age, smoking, drinking, exercise, frequency of tooth brushing, self-reported oral status, body mass index, diabetes mellitus, hypertension, white blood cell count, income, and education. A significant relationship between sleep duration and periodontitis was not found in men.

CONCLUSION: Our findings suggest that long sleep duration was associated with periodontitis, after adjusting for potential confounding factors, among Korean women, especially in premenopausal women.