“…The aim of such programs is to prevent loss of autonomy and worsening of disability by initiating the care process before older people express explicit demand (Huss, Stuck, Rubenstein, Egger, & Clough-Gorr, 2008; Liebel, Friedman, Watson, & Powers, 2009; Stuck, Egger, Hammer, Minder, & Beck, 2002). However, evaluations of the effectiveness of proactive home visit programs in systematic literature reviews and meta-analyses yield inconsistent results: Some individual studies report positive effects on patient outcomes such as functional status, mental health, and perceived social support, whereas others find no results at all (Elkan et al, 2001; Hoogendijk, 2016; Huss et al, 2008; Marek & Baker, 2006; Markle-Reid et al, 2006; Stuck et al, 2002). So far, this inconsistency remains poorly understood: Differences in study design, program characteristics, target populations, and context complicate the investigation of what program components contribute to a change in outcomes (Huss et al, 2008; Liebel et al, 2009; Markle-Reid et al, 2006).…”