Devin Petersen, Brigham Young University
Social and Behavioral Sciences
A previous meta-analysis conducted by Holt-Lunstad, Smith, and Layton (2010) indicates that social relationships have an inverse association with risk for mortality. The more friends and family that surround any particular person, the smaller their risk of mortality and the longer they live. Unfortunately, not everyone has a rich social network to draw on. The purpose of the current meta-analysis is to inquire as to whether certain social interventions might be utilized to prolong life expectancy and whether some social interventions result in better outcomes than others. We searched a number of major databases including Medline, Psycinfo, CINAHL, Medic, Social Work Abstracts, Family and Society Studies Worldwide, Alt Health Watch, and Google Scholar using specific search strings to search for articles with social intervention mortality data. Articles were excluded if they did not contain mortality or social support, if the social support was not implemented, if mortality and social support were not compared, or if they contained suicide/violent death data. Review/qualitative studies were excluded, as were studies with non-human subjects, and articles not in English, Spanish, Portuguese, or French. Several smaller meta-analyses that we have come across suggest that social interventions do not significantly increase survival time. However, these studies on average draw from under 10 studies, our meta-analysis analyzes of 50 articles. Our preliminary findings suggest that there is substantial variability in findings across studies. Although the overall average indicated a mild benefit from the social support interventions (OR = 1.44, p < .01), the heterogeneity of effect sizes was substantial. Under some circumstances the intervention actually was associated with increased rates of mortality, even though on average, odds of survival increased 44% relative to control groups. This meta-analytic review provides support for the general use of social intervention groups.