Table 1.

Feasibility indicators

Feasibility component	Outcome measure	Criterion for success	Study results
Process
Recruitment rate	Number of Part. recruited	2 part./month/site	1.9 part./month/site
Consent rate	% part. consenting	> 65% of part	93%
Retention rate	% part. completing study	> 85% complete T1	93%
Perceived satisfaction	7-pt Likert scale	> 85% report perceived benefits	100%
Resources
Adherence rate	Attend ≥ 10/12 intervention sessions	> 85% of subjects	100% attended 12 sessions
Session length	Evaluations < 2 h	> 85% of evaluations	100%
Intervention burden	Interventions < 1.15 h	> 85% of sessions	89.3%
Management
Participant processing time	Time initial contact to enrolment	Mean time < 10 days	100%
Treatment
Safety (evaluation)	Adverse events	No adverse event	No adverse event
Safety (intervention)	Adverse events	No adverse event	No adverse event

Part.: Participants