Fig. 4From: Association between human herpes simplex virus and periodontitis: results from the continuous National Health and Nutrition Examination Survey 2009–2014Association between HSV1 negative and HSV2 positive infection and periodontitis among subgroups of participants. Age, sex, race, educat0ion, marital status, PIR, smoking status, alcohol consumption, physical activity, BMI, diabetes, vitamin E intake, white blood cell count, and total serum cholesterol were adjusted except for the stratified factorBack to article page