The association between periodontitis and dyslipidemia based on the fourth Korea National Health and Nutrition Examination Survey

Aims The aim of this study was to examine whether dyslipidemia is associated with periodontitis in a representative sample of Korean adults who were involved in the Fourth Korea National Health and Nutrition Examination Survey (KNHANES). Materials and Methods A total of 18,210 subjects over 19years of age who participated in KNHANES were examined. Dyslipidemia is defined according to the definition proposed by the Korean Society of Lipidology and Atherosclerosis. The periodontal status of the patients was assessed by the Community Periodontal Index (CPI). Multivariate logistic regression analysis was carried out and adjusted for socio-demographics, oral health behaviours and status and general health behaviour. All analyses considered a complex sampling design, and multivariate analysis was also performed in the subgroups (age, gender and current smoking status). Results Multivariate logistic regression analysis revealed significant associations between dyslipidemia except pre-hypercholesterolemia and periodontitis. In the subgroup analysis, periodontitis was significantly associated with hypo-HDL-cholesterolemia and had a potential association with hyper- triglycerides (TG) in subjects younger than 40years. The adjusted ORs were greater in the present smoker group than the non-smoker group. Conclusions Dyslipidemia except pre-hypercholesterolemia is associated with periodontitis.