Fig. 1.

Age-specific prevalence of oncogenic HPV types by histology grade and ethnicity. Any HR HPV – any high risk (HR) HPV infection, regardless of co-infection with other HPV types; Any HPV 16 - HPV 16 infection, regardless of co-infection with other oncogenic HPV types; Any HPV 16 and/or 18 - HPV 16 and/or 18 infection, regardless of co-infection with other oncogenic HPV types; Other HR HPV alone - other high risk HPV infection without co-infection with HPV 16 and/or 18