Table 6.

Description of activities during sustainability phase

Activity	Objective	Target (ED, staff, patients, patient advisors)	Measurement tool and method	Outcome of interest
1. Assessing scalability of SurgeCon	To identify the extent to which the intervention can be maintained and carried out in other ED departments	ED	RE-AIM scoring and CFIR instrument	Scalable SurgeCon platform
2. Measuring the cost of implementing the intervention	To measure the cost of maintaining the intervention (e.g. system updates, staff training, etc.) and maintaining the restructured ED and its patient-centered environment	ED	Economic analysis	Cost of implementation
3. Assessing feasibility of maintaining SurgeCon	To identify the issues raised and their relevance to maintaining the intervention	ED	RE-AIM scoring instrument, champion observation, and site coordinator report	Making changes or resolving challenges as a result of intervention
4. Conducting patient-reported experiences, patient satisfaction telephone interviews, and semi-structured patient interview	To consult with patients, get feedback from them, study their lived-experiences	ED patients	Patient-reported experiences and patient satisfaction survey and semi-structured patient interview guide	Develop strategies to overcome the challenges of patient satisfaction
5. Conducting interviews about barriers and enablers to institutionalization	To study organizational climate of ED after the intervention implementation	ED staff	Semi-structured interview	Resolving potential contextual barriers to successful maintenance