“…Studies on prevalence of depression in the elderly population have produced conflicting results with respect to context of daily living (Okwumabua et al, 1997;Kim et al, 2002;Wang, 2004;Montagnier et al, 2006;Probst et al, 2006;Friedman et al, 2007;Bergdahl et al, 2007). Some studies indicated higher prevalence of depression in urban areas than in rural areas (Paykel et al, 2003;Friedman et al, 2007); one hypothesis that may account for this result is that the social relationships, defined by their structural (social networks) and functional features (social support and conflict), of elderly persons living in rural areas and small cities differ from those of elderly persons living in metropolitan regions.…”