Key Components and Content of Effective Evidence-Based Digital Prevention Programs for Anxiety and Depression in Children and Adolescents: A Systematic Umbrella Review

Anxiety and depression are among the most common mental health problems in children and adolescents, and evidence-based digital programs may help in their prevention. However, existing reviews lack a detailed overview of effective program elements, including structural features and supporting content. This umbrella review synthesizes the main elements of effective, evidence-based digital programs which facilitate the prevention of anxiety and depression in children and adolescents. Based on an analysis of 11 existing reviews that describe 45 programs, key components and content contributing to program effectiveness were identified. These included a focus on modular and linear structure, which means organizing the program in a clear and sequential manner. Additionally, approaches based on cognitive behavioral therapy and gamification to engage and motivate users, were identified as effective components. The findings provide a better understanding of what makes digital programs effective, including considerations for sustainability and content, offering valuable insights for the future development of digital programs concerning the prevention of anxiety and depression in children and adolescents. Critically noted is that the differentiation between prevention and intervention in the program description is not always clear and this could lead to an overestimation of prevention effects.