Fig. 1

Flowchart of the identification of subgroups at baseline and post-intervention. ^a Reasons for refusal included insufficient time, no interest, understaffing, already involved in other studies, change in management. ^b Excluded in the subgroup analysis, because the presence and severity of dementia could not be determined. ^c Pre-implementation phase (months 1–2), implementation phase (months 3–8), and consolidation phase (months 9–12)