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Is stacking intervention components cost-effective? An analysis of the Incredible Years program
E Michael Foster1, Allison E Olchowski, Carolyn H Webster-Stratton
1Department of Maternal and Child Health, School of Public Health, University of North Carolina, Chapel Hill, 27599-7445, USA. emfoster@unc.edu
Journal of the American Academy of Child and Adolescent Psychiatry
|December 1, 2007
Summary
Combining multiple components of the Incredible Years Series program is cost-effective for treating conduct disorder in children. This approach offers better outcomes compared to single-component interventions.
Area of Science:
- Child Psychology
- Behavioral Science
- Health Economics
Background:
- Interventions for conduct disorder are most effective when targeting multiple environments.
- The Incredible Years Series (IYS) offers three distinct program components: child-based, parent training, and teacher-based.
Purpose of the Study:
- To evaluate the cost-effectiveness of using multiple IYS components (stacking) versus single components.
- To determine the economic value of combined intervention strategies for child conduct disorder.
Main Methods:
- Analysis of data from 459 children (ages 3-8) in clinical trials of the IYS.
- Randomization into six conditions receiving one or more of the three IYS components.
- Generation of cost-effectiveness acceptability curves using per-child costs and behavior outcomes.
Main Results:
- Stacking IYS intervention components is likely cost-effective.
- Cost-effectiveness is indicated for willingness to pay above $3,000 per child.
- Combined interventions demonstrated favorable cost-effectiveness compared to single components.
Conclusions:
- Economic data can effectively compare different intervention formats.
- The Incredible Years Series demonstrates that multiple intervention components are a cost-effective strategy.
- Integrated, multi-component interventions offer economic advantages in treating child conduct disorder.
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