Incremental cost-effectiveness of influenza vaccination strategies targeting children and older adults implemented in the Canadian population: no immunization of individuals aged 6–64.

Abbreviations: TIV, trivalent inactivated vaccine; ATIV, adjuvanted trivalent inactivated vaccine.
a2009 Canadian dollars, discounted at 5% annually over a 10-year time horizon.
bQuality-adjusted life years lost, discounted at 5% annual over a 10-year time horizon.
cImmunization of older adults only with ATIV was economically attractive at $1424 per QALY, but the incremental cost-effectiveness ratio of immunizing both older adults and young children with ATIV was <$300 per QALY, indicating “extended dominance”.