File S1 - Differences in Oral Sexual Behaviors by Gender, Age, and Race Explain Observed Differences in Prevalence of Oral Human Papillomavirus Infection

Table S1. Characteristics of the 4256 individuals in NHANES study population contributing data to this analysis. Table S2. Sexual behavior and oral HPV prevalence by age-cohorts. Table S3. Multivariate risk factors associated with ever oral sex, oral HPV infection, when controlling for ever performing oral sex, among 20–69 year olds, and stratified by gender. (DOCX)