Indicators of retention in remote digital health studies

Indicators of retention in remote digital health studies: a cross-study evaluation of 100,000 participants.
npj Digital Medicine 3, 21 (2020). 17 February 2020 https://doi.org/10.1038/s41746-020-0224-8

• Analysis of findings regarding recruitment and retention from eight remote digital health studies conducted between 2014–2019 provided individual-level study-app usage data from more than 100,000 participants. 
• Factors which were significantly associated with increase in participant retention time, including (i) referral by a clinician to the study (ii) compensation for participation; (iii) having the clinical condition of interest in the study; and (iv) older age.