Key points:

• Digital health interventions: Definition, scope, examples.
• Engagement: Definition, importance, complexity.
• Measurement challenges: Multidimensional data, variability, arbitrary definitions.
• Mental health focus: Apps, virtual reality, stigma reduction, barriers to care.
• Cluster analysis: Grouping users, multidimensional engagement measures, case studies.
• Comparison to marketing: Engagement metrics, optimization, dynamic updates.
• Risks and opportunities: Growing field, need for early research, potential harm.
• Role of statisticians: Methodology, decentralized trials, PROs, future research.
• Call to action: Explore the field, learn, engage with associations.

Digital health interventions are transforming healthcare, offering exciting opportunities and posing new challenges for statisticians and researchers alike. From defining engagement to tackling complex data with innovative methods, this field has much to explore.

I hope this episode inspires you to dive deeper into this growing area and consider how you can contribute to its evolution. If you found this discussion valuable, I encourage you to listen to the full episode and share it with your friends and colleagues who might benefit from these insights.