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Am J Manag Care. 2010 Apr 1;16(4):e98-104.

Economic evaluation of an Internet-based weight management program.

Author information

1
Department of Pharmacy Practice and Administration, University of Missouri, Kansas City, 64106, USA. rassur@umkc.edu

Abstract

OBJECTIVE:

To determine whether a behavioral Internet treatment (BIT) program for weight management is a viable, cost-effective option compared with usual care (UC) in a diverse sample of overweight (average body mass index = 29 kg/m2), healthy adults (mean age = 34 years) serving in the US Air Force.

STUDY DESIGN:

Two-group parallel randomized controlled trial.

METHODS:

Participants were randomly assigned into 2 groups: UC (n = 215) and UC plus BIT (n = 227). Baseline and 6-month assessments were included in the analyses. Primary outcome measures (changes in body weight, percent body fat, and waist circumference) and secondary outcome measures (Weight Efficacy Lifestyle [WEL] questionnaire) were included in an incremental cost-effectiveness analysis (ICEA) model. Costs were computed using the perspective of an agency wanting to replicate the intervention. Sensitivity analyses were performed to measure the robustness of models.

RESULTS:

Overall cost for BIT intervention was $11,178.40, or $49.24 per BIT participant. Total staff-time cost was $14.03 per BIT participant. Intervention cost was $25.92 per kilogram of weight loss and $28.96 per centimeter of waist-circumference loss. The cost was $37.88 for each additional point gained on the WEL subscale, where increasing scores indicate increased confidence in managing social pressures to eat.

CONCLUSIONS:

The BIT program is a cost-effective choice for weight management. It may cost more initially, but it results in long-term cost savings. Such cost-effective, Internet-based behavioral interventions for weight management could provide a valuable tool for preventive care aimed at improving individual and societal health.

PMID:
20370312
[Indexed for MEDLINE]
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