Table 2.

Risks of cancers.

	Non-HPV			HPV
	Pm	Event	Incidence rate†	Pm	Event	Incidence rate†	Crude HR	Adjusted HR
Female breast cancer	45,020,697	1,762	46.97 (44.82-49.21)	22,388,511	2,046	109.67 (105.01-114.52)	2.336(2.192-2.490)	2.271(2.129-2.421)
Head and neck cancer	89,136,676	1,064	14.32 (13.49-15.21)	44,357,317	808	21.86 (20.40-23.42)	1.527(1.393-1.673)	1.595(1.453-1.749)
Cervical cancer	45,020,697	712	18.98 (17.63-20.42)	22,388,511	777	41.65 (38.82-44.68)	2.195(1.983-2.430)	2.225(2.008-2.464)

Pm, person-months.

† Crude incidence rate, per 100000 person-years.