Table 2.

Adjusted willingness to pay values and probability of cost-effectiveness

Study	Intervention	WTP per intervention ($)	Estimated WTP per hour ($)		% of time TAP cost-effective
			On duty	Doing things	On duty	Doing things
Chiu et al. [28]	Caregivers asked amount willing to pay in a month to receive nursing home services.	978	4.58	9.57	80	70
Werner et al. [29]	Caregivers asked amount willing to pay in a month for a drug treatment.	225	1.06	2.21	50	50
Wu et al. [30]	Caregivers asked amount willing to pay to stabilize patient over 1 year in both cognition and behavior with a cholinesterase inhibitor treatment.	4224	1.68	3.51	60	60
Wu et al. [30]	Caregivers asked amount willing to pay to stabilize over 1 year in both cognition and behavior with a cholinesterase inhibitor treatment; however, with adverse events.	3788	1.50	3.14	60	60

All studies used contingent valuation methodology.

WTP, willingness-to-pay.