Incremental cost-effectiveness ratios of including pre-adolescent boys in the childhood vaccination program compared to vaccination of pre-adolescent girls only.

a

Assumes a cost per dose of $75, exclusive of the administration cost (≈$14 per dose).

b

Compared to no vaccination.

c

Compared to girls-only vaccination.

d

Includes female cervical, vulvar, vaginal, anal and oropharyngeal cancers,

e

Includes male anal, oropharyngeal and penile cancers,

f

Includes cervical, vulvar, vaginal, anal, oropharyngeal and penile cancers related to HPV-16, -18, and genital warts and recurrent respiratory papillomatosis related to HPV-6, -11.