Association between human herpes simplex virus and periodontitis: results from the continuous National Health and Nutrition Examination Survey 2009–2014

Abstract Background Periodontitis is a common chronic oral disease which seriously affects people's quality of life. Although human herpes simplex virus (HSV) is also found in periodontal lesions, the association between HSV infection and periodontitis is unclear. Methods The National Health and Nutrition Examination Survey (NHANES) data for 2009–2010, 2011–2012 and 2013–2014 was combined, and the association between HSV infection and periodontitis in the general population and particular subgroups was investigated through weighted multi-logistic analyses. Results There were 4,733 participants aged 30–50 years old with clinically assessed periodontitis concurrent with HSV infection. In general analysis, after adjusted for covariates, both HSV-1 (OR = 1.09, P