Cost-effectiveness of tailored print communication, telephone motivational interviewing, and a combination of the two: results of an economic evaluation alongside the Vitalum randomized controlled trial

Table 5 Incremental cost-effectiveness ratios (ICER) of Vitalum groups

Outcome	Group	Costs (euros)	Improvement in outcome	Difference with next less costly group		ICER
				Costs	Outcomes
Difference in total number of guidelines met	control	0	0.26	0	0.00
	TPC	57	0.62	57	0.36	160
	combined	80	0.50	23	-0.12	Dominated by control and TPC
	TMI	107	0.40	27	-0.10	Dominated by control and TPC
Quality-Adjusted Life-Years experienced over 73 weeks	control	0	1.07	0	0.00
	TPC	57	1.09	57	0.02	2,867
	combined	80	1.08	23	-0.01	Dominated by control and TPC
	TMI	107	1.08	27	0.01	Dominated by extended dominance

Note ICER = incremental cost-effectiveness ratio (difference in costs divided by difference in effects of two groups); TPC = tailored print communication; TMI = telephone motivational interviewing; combined = combination of TPC and TMI.

ISSN: 1479-5868