Rachel L Winer1, Tarik Gheit2, Qinghua Feng3, Joshua E Stern4, John Lin1, Stephen Cherne5, Massimo Tommasino2. 1. Department of Epidemiology, University of Washington. 2. Department of Pathology, University of Washington. 3. Department of Global Health, University of Washington. 4. Infections and Cancer Biology Group, International Agency for Research on Cancer, World Health Organization, Lyon, France. 5. FIDALAB, Seattle, Washington.
Abstract
BACKGROUND: Little is known about the epidemiology of β and γ human papillomaviruses (HPVs) in oral cavities of healthy women. METHODS: We performed multiplex polymerase chain reaction analysis for detection of 46 β-HPVs and 51 γ-HPVs in stored oral rinse samples from healthy mid-adult women (age, 30-50 years). A total of 407 women were tested for β-HPVs, and 310 were tested for γ-HPVs. We used log-binomial regression to identify determinants of β-HPV and γ-HPV in separate models. Using paired fingernail data from a subset of 184 women, we also evaluated whether fingernail β-HPV detection was associated with concurrent detection of the same type in the oral cavity. RESULTS: Oral HPV prevalence was 20.6% for β-HPV and 10.7% for γ-HPV. In multivariate analysis, oral β-HPV detection was associated with increasing age (adjusted prevalence ratio [aPR] per 5-year difference, 1.37; 95% confidence interval [CI], 1.01-1.86) and a greater lifetime number of oral sex partners (aPR for reporting ≥6 vs 0-5 partners, 2.06; 95% CI, 1.01-4.20). In a separate model, concurrent detection of the same β-HPV type in fingernails was strongly associated with oral β-HPV detection (aPR, 31.44; 95% CI, 19.81-49.49). No significant determinants of γ-HPV detection were identified. CONCLUSIONS: Our results suggest a sexual transmission route for β-HPVs and support the hypothesis that fingers may serve as a source of transmission or autoinoculation of β-HPVs to the oral cavity.
BACKGROUND: Little is known about the epidemiology of β and γ human papillomaviruses (HPVs) in oral cavities of healthy women. METHODS: We performed multiplex polymerase chain reaction analysis for detection of 46 β-HPVs and 51 γ-HPVs in stored oral rinse samples from healthy mid-adult women (age, 30-50 years). A total of 407 women were tested for β-HPVs, and 310 were tested for γ-HPVs. We used log-binomial regression to identify determinants of β-HPV and γ-HPV in separate models. Using paired fingernail data from a subset of 184 women, we also evaluated whether fingernail β-HPV detection was associated with concurrent detection of the same type in the oral cavity. RESULTS: Oral HPV prevalence was 20.6% for β-HPV and 10.7% for γ-HPV. In multivariate analysis, oral β-HPV detection was associated with increasing age (adjusted prevalence ratio [aPR] per 5-year difference, 1.37; 95% confidence interval [CI], 1.01-1.86) and a greater lifetime number of oral sex partners (aPR for reporting ≥6 vs 0-5 partners, 2.06; 95% CI, 1.01-4.20). In a separate model, concurrent detection of the same β-HPV type in fingernails was strongly associated with oral β-HPV detection (aPR, 31.44; 95% CI, 19.81-49.49). No significant determinants of γ-HPV detection were identified. CONCLUSIONS: Our results suggest a sexual transmission route for β-HPVs and support the hypothesis that fingers may serve as a source of transmission or autoinoculation of β-HPVs to the oral cavity.
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