Cost-Effectiveness of a Training Intervention for Adolescents with ADHD.

Objective: The aim of this study was to examine the costs and cost-effectiveness of a school-based training intervention delivered at varying levels of intensity with adolescents with attention-deficit/hyperactivity disorder (ADHD). Costs were examined in relation to post-treatment and 6-month follow-up effects of the Challenging Horizons Program (CHP), a training intervention for adolescents with ADHD.Method: A total of 326 middle-school students (71% male; 77% White) with ADHD were randomized to an after-school version of the CHP (CHP-AS), a less-intensive mentoring version (CHP-M), or routine community care. Detailed time logs were maintained throughout the study and were used to estimate costs associated with each condition. Student grade point average (GPA) and parent-rated ADHD symptoms and organization skills were collected at post-treatment and 6-month follow-up.Results: The cost analysis revealed that CHP-AS was more costly per student than CHP-M, both in terms of overall costs and direct expenses to the school. However, CHP-AS was less costly per hour of intervention provided to the youth than CHP-M. Incremental cost-effectiveness ratios revealed that CHP-M may be the more cost-effective option for post-treatment effects, yet CHP-AS may be the more cost-effective option in the long term for sustained gains in organization skills and GPA.Conclusions: This study provides stakeholders important information to make decisions regarding allocation of finite monetary resources to meet their prioritized goals.