COHORT: In 2017 and 2018, we engaged with adult citizen scientists across the life course to test various aspects of the Platform, from citizen engagement and compliance strategies to real-time assessments and interventions. The big data collected included both qualitative and quantitative components as well as mobile sensor-based data that captured behaviours and outcomes in real-time.

PROCESS: We developed a deep understanding of evidence-based approaches that apply to various adult cohorts (18-35; 36-65; >65) in terms of recruitment, retention, continuous engagement, and data management, and sovereignty, which are critical factors for the success of digital health innovations.