Table 3.

Additional vaccination cost and total incremental cost for switching from TIV to QIV (base case)

Age (years)	Additional vaccination cost (USD)	Total incremental cost: Payor perspective (USD)	Total incremental cost: societal perspective (USD)
≤4	$130,802	$111,336	$111,206
5–19 high-risk	$46,994	$40,933	$40,700
20–49 high-risk	$113,389	$110,110	$107,454
50–59 high-risk	$72,855	$70,584	$69,169
≥60	$365,054	$346,025	$345,138
Total	$729,095	$678,989	$673,667

QIV, quadrivalent influenza vaccine; TIV, trivalent influenza vaccine.