• Jafar Hassanzadeh, Mohsen Asadi-Lari, Abdolvahab Baghbanian, Haleh Ghaem, Aziz Kassani, and Abbas Rezaianzadeh.
• Aziz Kassani, Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran, azizkassani@yahoo.com.
• Croat. Med. J. 2016 Feb 1; 57 (1): 58-65.

AimTo explore the association(s) between demographic factors, socioeconomic status (SES), social capital, health-related quality of life (HRQoL), and mental health among residents of Tehran, Iran.MethodsThe pooled data (n=31519) were extracted from a population-based survey Urban Health Equity Assessment and Response Tool-2 (Urban HEART-2) conducted in Tehran in 2011. Mental health, social capital, and HRQoL were assessed using the 28-item General Health Questionnaire (GHQ-28), social capital questionnaire, and Short-Form Health Survey (SF-12), respectively. The study used a multistage sampling method. Social capital, HRQoL, and SES were considered as latent variables. The association between these latent variables, demographic factors, and mental health was determined by structural-equation modeling (SEM).ResultsThe mean age and mental health score were 44.48±15.87 years and 23.33±11.10 (range, 0-84), respectively. The prevalence of mental disorders was 41.76% (95% confidence interval 41.21-42.30). The SEM model showed that age was directly associated with social capital (P=0.016) and mental health (P=0.001). Sex was indirectly related to mental health through social capital (P=0.018). SES, HRQoL, and social capital were associated both directly and indirectly with mental health status.ConclusionThis study suggests that changes in social capital and SES can lead to positive changes in mental health status and that individual and contextual determinants influence HRQoL and mental health.

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