Table 2 Potential solutions to the challenges of engagement in digital mental health interventions identified by the consensus meeting

From: Engagement and attrition in digital mental health: current challenges and potential solutions

Theme 1 – definitions and terminology

a) Standardisation of reporting of engagement in DHI research studies.

 • The group did not achieve consensus on the exact definitions of each engagement term, but agreed on core concepts

 • Engagement is a complex term encompassing usage and adherence, but also cognitive, affective and motivational components

 • Agreed guidance needs to be developed, standardised and implemented by all studies

 • More than one engagement statistic should be reported (including both objective and subjective measures)

 • Transparent reporting of raw data is needed to allow direct comparisons

b) Assessment of the appropriate ‘dose’ of an intervention, to maximise engagement and outcomes.

 • Short or ultra-short interventions may be appropriate in some cases

 • The target dose needs to be assessed for each intervention

Theme 2 - demonstrating efficacy (outcomes) and cost effectiveness of effective engagement

a) Research studies need to be theory driven.

b) Research studies should actively report engagement and outcomes.

 • Design trials to determine engagement, efficacy/outcomes and their facilitators

 • It is key to measure both patient-reported outcomes and experiences (PROMS and PREMS) as well as standard outcome measures

 • More research is needed on the links between engagement and outcomes, including dose relationships and potential (bio)markers for optimal engagement and response.

Theme 3 – user involvement and user centred design

a) Improve standards of user involvement in DHI research studies, with more precise reporting.

 • Standardised guidance

 • Co-production and human-centred co-design

 • User involvement and engagement

b) Investigate the mechanisms of engagement to identify the essential elements.

 • Identifying the relative contribution of different engagement strategies

 • Maximising theory driven work in trustworthiness and engagement

c) Measure and report the potential harms of engagement.

d) Include clinicians and the wider workforce as users.