Title: Interventions Targeting Social Isolation in Older People: a Systematic Review

The authors report a narrative literature review of 33 intervention studies designed to reduce loneliness and social isolation in older adults. Loneliness and social isolation are related but separable constructs, and the outcomes included in the review are also related but separable. The authors conclude that there is “substantial heterogeneity in the interventions delivered” (p. 2) and that “More, well-conducted studies of the effectiveness of social interventions for alleviating social isolation are needed” (p. 3)