Cost-effectiveness and cost-utility of a Web-based or print-delivered tailored intervention to promote physical activity among adults aged over fifty: an economic evaluation of the Active Plus intervention

Table 3 Incremental cost-effectiveness (ICER) and cost-utility (ICUR) ratios of the Active Plus intervention conditions

	Cost-effectiveness analysis			Cost-utility analysis
	Incremental costs^a,b	Incremental MET-hours/week	ICER^c	Incremental costs^a,b	Incremental QALYs^d	ICUR^c
*Intervention vs. control*
Intervention as a whole	-174	3.8	-46^e	-153	-0.002	101,169^f
PB	-288	5.3	-55^e	-315	-0.008	38,120^f
PE	-464	5.0	-94^e	-434	-0.001	405,892^f
WB	318	3.0	108^h	364	-0.001	440,164^g
WE	-255	1.8	-139^e	-211	0.004	-47,293^e
*Environment vs. basic*
PE vs. PB	-176	-0.3	555^h	-119	0.007	-16,516^e
WE vs. WB	-573	-1.1	514^h	-575	0.005	-108,851^e
*Print vs. Web*
PB vs. WB	-606	2.3	-261^e	-679	-0.007	91,336^f
PE vs. WE	-209	3.1	-67^e	-223	-0.006	40,426^f

C = control group, PB = printed basic intervention, PE = printed environmental intervention, WB = Web-based basic intervention, WE = Web-based environmental intervention.
^aIn Euros; ^bdifferences in incremental costs for the ICER and ICUR occur due to differences in the number of participants for which MET-hours/week and QALYs were available; ^ccalculated according to the formula ICER (or ICUR) = (Costs_i-Costs_c)/(Effect_i-Effect_c); ^dBased on the Dutch algorithm for the EuroQol (EQ-5D-3L) scores; ^edominant; ^fdominant based on WTP = €20,000 (i.e. savings larger than WTP); ^gdominated; ^hpreferred intervention depends on WTP (unknown for PA).

ISSN: 1479-5868