Table 2.

Re-Aim domains and definitions

Domain	Definition for Pisando Fuerte	Measurement
Reach	Number and characteristics of individuals willing to participate in a program.	Number of participants in the program compared to the number of individuals invited to participate. Overall sociodemographic characteristics of participants.
Outcomes	The health outcomes associated with the intervention	Number of falls per person during 6 months post intervention compared to 6 months pre intervention, collected during interviews, and corroborated with the use of tracking calendars that were submitted during the study period. The Timed Up and Go (TUG) [23] and Shortened Fall Behavioral Scale (FaB) scale [24] were used as intermediary outcomes; these were measured at baseline and 6 months post intervention.
Adoption	Characteristics of adopting organizations, and barriers and facilitators to adoption by the organizations.	Content analysis of semi-structured interviews of leaders, coordinators and administrators after the workshops were completed.
Implementation	At the organization level, it refers to the fidelity of delivery of the intervention, time/cost to implement the program.	Fidelity of delivery – Evaluation was performed at sessions 1, 3, and 7, by a trained expert, who used a pre-defined checklist created using the key elements of Stepping On. Time/cost to implement the program according to budgets and hourly invoices submitted by adopting organizations.
	At the individual level, it refers to the use of the intervention by participants	Fidelity of enactment – the degree to which the participants apply the skills learned in their daily life [25]. It was assessed at completion of the program and 6 months post intervention using content analysis of semi-structured interviews of participants and demonstration of exercises. Workshop completion was defined as attending 6 out of 8 sessions.
Maintenance	At the organization level refers to the capacity to keep implementing the program	N/A – Because Pisando Fuerte was only available for research purposes, we could not assess the maintenance of the program.
	At the individual level, refers to the long-term fidelity of enactment of the health behavior of interest.	Maintenance is the degree to which the participants apply the learned skills long-term in their daily life [25]. Measured using content analysis of semi-structured interviews of participants 6 months post completion.