title: The association between social network factors and mental health at different life stages.
abstract: Psychosocial factors are important determinants of an individual's health. This study examines the association between health scores and social network factors on mental health across different life stages.
  
  
  
  Data were drawn from the Household Income and Labour Dynamics in Australia survey for adolescents (n = 1739), adults (n = 10,309) and seniors (n = 2287). Hierarchical regression modelling was applied to examine effects within and across age groups. All the variables were derived from the self-completion questionnaire.
  
  
  
  The social network factors were statistically significant predictors of mental health outcomes for all three life stages. For adolescents, the three social network factors were statistically significant with social isolation having the largest impact (β = -.284, p < .001), followed by social connection (β = .084, p < .001) and social trust having a similar effect (β = .073, p < .001). For adults social isolation had the highest impact (β = -.203, p < .001), followed by social connection (β = .110, p < .001) and social trust (β = .087, p < .001).The results for seniors were social isolation (β = -.188, p < .001), social connection (β = .147, p < .001) and social trust (β = .032, p < .05).
  
  
  
  After adding the social network factors, the models improved significantly with social isolation playing the most significant role across all life stages, whereas the other social network factors played a differentiated role depending upon the life stage. These findings have practical implications in the design of mental health interventions across different life stages.
authors.affiliation: Centre for Complex Systems Research, Faculty of Engineering and IT, The University of Sydney, Sydney, NSW, 2006, Australia. andrew.levula@sydney.edu.au.
authors.forename: Andrew
authors.identifier: 0000-0002-7994-5116
authors.initials: A
authors.lastname: Levula
authors.affiliation: Menzies Centre for Policy, School of Public Health, The University of Sydney, Sydney, NSW, 2006, Australia.
authors.forename: Andrew
authors.initials: A
authors.lastname: Wilson
authors.affiliation: Centre for Complex Systems Research, Faculty of Engineering and IT, The University of Sydney, Sydney, NSW, 2006, Australia.
authors.forename: Michael
authors.initials: M
authors.lastname: Harré
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001315:Australia; D005260:Female; D006801:Humans; D008297:Male; D008603:Mental Health; D008875:Middle Aged; D011788:Quality of Life / Q000523:psychology*; D012944:Social Support; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: Emotional status; Life stages; Mental health; Social isolation; Social network