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Randomized Controlled Trial
. 2013 Mar 14;15(3):e57.
doi: 10.2196/jmir.2059.

Cost-effectiveness and cost-utility of Internet-based computer tailoring for smoking cessation

Eline Suzanne Smit  1 , Silvia M A A Evers, Hein de Vries, Ciska Hoving
Affiliations
Randomized Controlled Trial

Cost-effectiveness and cost-utility of Internet-based computer tailoring for smoking cessation

Eline Suzanne Smit et al. J Med Internet Res. .

Abstract

Background: Although effective smoking cessation interventions exist, information is limited about their cost-effectiveness and cost-utility.

Objective: To assess the cost-effectiveness and cost-utility of an Internet-based multiple computer-tailored smoking cessation program and tailored counseling by practice nurses working in Dutch general practices compared with an Internet-based multiple computer-tailored program only and care as usual.

Methods: The economic evaluation was embedded in a randomized controlled trial, for which 91 practice nurses recruited 414 eligible smokers. Smokers were randomized to receive multiple tailoring and counseling (n=163), multiple tailoring only (n=132), or usual care (n=119). Self-reported cost and quality of life were assessed during a 12-month follow-up period. Prolonged abstinence and 24-hour and 7-day point prevalence abstinence were assessed at 12-month follow-up. The trial-based economic evaluation was conducted from a societal perspective. Uncertainty was accounted for by bootstrapping (1000 times) and sensitivity analyses.

Results: No significant differences were found between the intervention arms with regard to baseline characteristics or effects on abstinence, quality of life, and addiction level. However, participants in the multiple tailoring and counseling group reported significantly more annual health care-related costs than participants in the usual care group. Cost-effectiveness analysis, using prolonged abstinence as the outcome measure, showed that the mere multiple computer-tailored program had the highest probability of being cost-effective. Compared with usual care, in this group €5100 had to be paid for each additional abstinent participant. With regard to cost-utility analyses, using quality of life as the outcome measure, usual care was probably most efficient.

Conclusions: To our knowledge, this was the first study to determine the cost-effectiveness and cost-utility of an Internet-based smoking cessation program with and without counseling by a practice nurse. Although the Internet-based multiple computer-tailored program seemed to be the most cost-effective treatment, the cost-utility was probably highest for care as usual. However, to ease the interpretation of cost-effectiveness results, future research should aim at identifying an acceptable cutoff point for the willingness to pay per abstinent participant.

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Conflict of interest statement

Conflicts of Interest: Hein de Vries is scientific director of Vision2Health, a company that licenses evidence-based innovative computer-tailored health communication tools.

Figures

Figure 1
Figure 1
Overview of the intervention elements received by the 3 groups.
Figure 2
Figure 2
Cost-effectiveness acceptability curve for the 3 treatments studied: MTC, MT, and UC.
Figure 3
Figure 3
Cost-utility acceptability curve for the 3 treatments studied: MTC, MT, and UC.
See this image and copyright information in PMC

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