Social isolation and loneliness among older people: issues and future challenges in community and residential settings.

Although often associated with older age, loneliness and social isolation are not well understood in terms of their prevalence, risk and protective factors. Evidence suggests that only a minority of community-dwelling older people are "severely" lonely or isolated, however a number of factors need to be considered to fully understand the extent and significance of the problem. Community-based studies have identified a variety of risk factors for loneliness/isolation including widowhood, no (surviving) children, living alone, deteriorating health, and life events (eg, loss and bereavement). Having a confidant has been identified as a protective factor for loneliness. However, evidence is often unclear or inconclusive, especially within residential settings. We identified the need to conduct more residential care-focused research; the importance of addressing a variety of methodological concerns; and the need for practitioners to develop intervention programs that are appropriately targeted, evidence-based and evaluated.