Cost-Utility Analysis of a Complex Intervention to Reduce School-Based Bullying and Aggression: An Analysis of the Inclusive RCT

ObjectivesBullying and aggression among children young people are key public mental health priorities. In this study, we evaluated the cost-effectiveness of a complex school-based intervention to address these outcomes within large-cluster randomized trial (Inclusive).MethodsForty state secondary schools were randomly allocated (1:1) receive or continue with current practice as controls. Data collected using paper questionnaires completed in classrooms including measures their health-related quality life Childhood Utility Index police National Health Service resource use. Further detailed data on cost delivering intervention. We calculated incremental ratios following intention-to-treat principle multilevel linear regression models that allowed for clustering pupils at school level.ResultsOverall, found was highly cost-effective, cost-per quality-adjusted year thresholds £13 284 £1875 2 years 3 years, respectively. Analysis uncertainty result revealed 65% chance being but after there 90% it cost-effective.ConclusionThis study provides strong evidence prospectively from is cost-effective. Education- health-sector policy makers should consider investment scaling up