Can we better understand severe mental illness through the lens of Syndemics?

The social determinants of mental health and disorder: evidence, prevention and recommendations

People exposed to more unfavourable social circumstances are more vulnerable to poor mental health over their life course, in ways that are often determined by structural factors which generate and perpetuate intergenerational cycles of disadvantage and poor health. Addressing these challenges is an imperative matter of social justice. In this paper we provide a roadmap to address the social determinants that cause mental ill health. Relying as far as possible on high-quality evidence, we first map out the literature that supports a causal link between social determinants and later mental health outcomes. Given the breadth of this topic, we focus on the most pervasive social determinants across the life course, and those that are common across major mental disorders. We draw primarily on the available evidence from the Global North, acknowledging that other global contexts will face both similar and unique sets of social determinants that will require equitable attention. Much of our evidence focuses on mental health in groups who are marginalized, and thus often exposed to a multitude of intersecting social risk factors. These groups include refugees, asylum seekers and displaced persons, as well as ethnoracial minoritized groups; lesbian, gay, bisexual, transgender and queer (LGBTQ+) groups; and those living in poverty. We then introduce a preventive framework for conceptualizing the link between social determinants and mental health and disorder, which can guide much needed primary prevention strategies capable of reducing inequalities and improving population mental health. Following this, we provide a review of the evidence concerning candidate preventive strategies to intervene on social determinants of mental health. These interventions fall broadly within the scope of universal, selected and indicated primary prevention strategies, but we also briefly review important secondary and tertiary strategies to promote recovery in those with existing mental disorders. Finally, we provide seven key recommendations, framed around social justice, which constitute a roadmap for action in research, policy and public health. Adoption of these recommendations would provide an opportunity to advance efforts to intervene on modifiable social determinants that affect population mental health.

Social mobility and mental health: A systematic review and meta-analysis

Socioeconomic status (SES) is a robust correlate of mental health, and emerging research indicates that life course trajectories of SES (i.e., social mobility) may be more predictive for health outcomes than point-in-time SES assessments. This paper presents five primary meta-analyses to determine how mental health differs between social mobility groups. We conducted a systematic review of PsycINFO, Web of Science, and PubMed for studies of social mobility and mental health. We used random-effects multilevel meta-analyses to compare mental health problems between individuals who experienced upward mobility, downward mobility, stable high SES, and stable low SES. We included data from 21 studies and 157,763 unique participants yielding 105 effect sizes. Upwardly mobile participants experienced more mental health problems than stable high SES participants (d = 0.11), fewer mental health problems than stable low SES participants (d = -0.24), and fewer mental health problems than downwardly mobile participants (d = -0.17). Downwardly mobile individuals experienced more mental health problems than stable high SES participants (d = 0.26) and fewer mental health problems than stable low SES participants (d = -0.10). Subgroup analyses revealed that the magnitude of effects did not differ by continent of study, type of generational mobility (intergenerational vs. intragenerational), or SES indicator. Meta-regressions with continuous moderators (age, gender, race, study quality) were also non-significant. Taken together, these results indicate that both upwardly and downwardly mobile individuals experience more mental health problems than those who are persistently advantaged, and they both experience fewer mental health problems than those who are persistently disadvantaged. Our findings suggest that while current SES has a stronger association with adult mental health than childhood SES, it is important to also consider the impact of early life and prior generation SES to account for lingering effects of early disadvantage.