Table 1. Definition of RE-AIM Domains Along the Study Intervention.

RE-AIM domain	Definition in In-HospiTOOL implementation evaluation
Reach	Proportion of hospitals that agreed to participate as an intervention hospital during the study 7 of 10 invited hospitals agreed to participate Designation of ≥1 physician, 1 nurse, and 1 social worker as local team leaders in each hospital Team leaders were instructed in procedural details of the study, received training on how to perform structured interprofessional team-based bedside rounding using the tool, and then disseminated this information among their colleagues Training of team leaders was accomplished through onsite visits or phone conferences at least every month To guarantee a standardized education of the local staff, we provided a teaching video to all study sites, where the appropriate usage of the tool meticulously described (BZP,24 2018)
Effectiveness	Primary and secondary (balancing) outcomes Primary (hospital length of stay) Secondary (30-day all-cause hospital readmission, all-cause in-hospital mortality, facility discharge)
Adoption	Extent to which caregivers actually adopted the intervention in the study (showed compliance with the intervention) The implementation and progress of using the tool (frequency of tool use) were closely monitored by local team leaders
Implementation	Extent to which the intervention is implemented as intended, including implementation barriers and facilitators All team leaders continuously coached medical ward staff during the intervention period and provided real-time feedback to them to standardize the process and diminish individual variability during ward rounds In addition to the assessment of frequency in tool use, a close monitoring by team leaders allowed intervention to improve alignment with the key principles and study goals, if appropriate The local social work leader rounded with the care team to detect postacute care demands early
Maintenance	Extent to which the intervention is intended to be sustained over time and become institutionalized Meetings with stakeholder and providing support in programmatic incorporation of the tool along EMR

Abbreviations: In-HospiTOOL, Integrative Hospital Treatment in Older Patients to Benchmark and Improve Outcome and Length of Stay; EMR, electronic medical records; RE-AIM, Reach, Effectiveness, Adoption, Implementation, Maintenance.