The design was a prospective observational cohort design which was separated in two phases (in terms of recruitment of participants):
Phase 1: PRISMA-7 and ER², where only the assessment component was performed over a period of 3 months.
Phase 2: PRISMA-7 and ER², where both components (i.e.; assessment and recommendations) were performed over a period of 3 months.
Participants were patients aged 65 years and over, whose visit to the JGH ED was unplanned. For both tools (ER² and PRISMA-7) assessed patient results were compared to a reference group of elderly patients admitted to the ER, for whom neither assessment was completed. The analysis of their medical chart, following discharge, allowed researchers to closely follow the various steps of their stay at the JGH. The medical charts were also taken into account to ensure the respect of the study’s inclusion criteria.