Age-adjusted incidence rates and rate ratios of potentially HPV-associated and non HPV-associated HNC by sex and race/ethnicitya, 1995–2005.

HNC: head and neck cancer; HPV: human papillomavirus; 95% CI: 95% Confidence Interval; NH: Non-Hispanic.Rates are per 100,000 and age-adjusted to the 2000 U.S. Standard Population (19 age groups – Census P25-1130).Confidence intervals (Tiwari model) are 95% for rates and ratios.*The rate is significantly different than the rate for Non-Hispanic Whites (paAny cases with an ‘Unknown’ or ‘Other’ race were not included in the analysis.