The impact of social networks and social support on mental disorders and mortality

INTRODUCTION: There is conflicting evidence regarding the role of social support networks in health and wellbeing and more research is needed to address the lack of information. The objective of this project is to categorize key indicators of social support and social networks, and further to determine the impact of such indicators on mental disorder and mortality. METHODS: This project will include three research articles: paper I is a review of the literature which involves an investigation into the evidence on associations between social support networks and depression in the general population (systematic literature review). Paper II is an original research paper that involves an examination of how social network integration predicts all-cause mortality among older adults in six Latin-American countries, India, and China (prospective analysis). Finally, paper III is an original research paper involving an investigation into relationship quality (positive and negative aspects of social support) and social networks with depression, anxiety and suicidal ideation in a nationally representative sample of older Irish adults in intimate relationships (cross-sectional analysis). RESULTS: I) A number of key indicators of social support and social networks were identified to be associated with depression. Generally, studies have found protective effects of perceived social support and large, diverse social networks against depression in the general population. II) For older adults in developing countries, survival time is significantly reduced in individuals embedded in restricted social networks. III) For older Irish adults in intimate relationships, we found that worse relationship quality with the spouse is positively associated with depression, anxiety, and suicidal ideation, and that restricted social network integration is positively associated with depression. CONCLUSION: A number of recommendations have been made for future research in order to make a more comprehensive assessment of the role of social support ...