The study is grounded in minority stress theory, the influential framework first formalized by Ilan Meyer in 2003. The theory holds that sexual and gender minorities carry a chronic, cumulative burden of stress that the general population does not: distal stressors such as overt discrimination and violence, and proximal stressors such as internalized stigma and self-rejection. Decades of research have linked this burden to stark health disparities. A recent United States national health survey, cited by the authors, found depression rates of 49.0 percent among sexual minorities versus 19.5 percent among heterosexual respondents, and anxiety rates of 44.3 percent versus 16.4 percent. Similar patterns have been documented across Sweden, Italy, and Belgium.

What makes the new study notable is its setting. Most minority stress research comes from North America and Europe, where legal protections for LGBTQ+ people have expanded substantially. Brazil, by contrast, presents a harsher social landscape. Prior work in Rio de Janeiro found that more than 60 percent of SGM participants had experienced institutional discrimination in workplaces or healthcare settings, more than 80 percent reported verbal abuse, and 66 percent screened positive for anxiety symptoms. Understanding how support networks function—or fail to function—in such an environment is a question of urgent practical significance.

The researchers recruited participants online and through community centers, dividing them by gender identity into gender nonconforming (GNC, n=39), transgender (n=44), cisgender men (n=344), and cisgender women (n=140), and by sexual orientation into gay men (n=203), bisexual men (n=136), lesbian women (n=63), and bisexual women (n=77). Each participant completed validated Brazilian versions of three instruments: the DASS-21, measuring stress, anxiety, and depression; the PANAS, measuring positive and negative affect; and the Multidimensional Scale of Perceived Social Support, which separately assesses support from family, friends, and significant others. Confirmatory factor analyses confirmed the online versions reproduced the original factorial structures, with internal consistency values ranging from .78 to .94.

The affective results were striking. Positive affect did not differ significantly across any gender or sexual orientation group—a quiet testament to resilience. Negative affect, however, told a different story. Gender nonconforming individuals reported significantly higher negative affect than cisgender men, and among sexual orientation groups, bisexual men and lesbian women both reported more negative affect than gay men. The authors point to prior evidence that bisexual people face a double stigma, encountering biphobia both from heteronormative society and sometimes from within the LGBTQ+ community itself, where their identities are dismissed as confusion or a phase.

Psychiatric symptoms followed a parallel gradient. Gender nonconforming participants and cisgender women reported the highest levels of stress, anxiety, and depression, with cisgender men consistently reporting the lowest. Among sexual orientation groups, bisexual men, bisexual women, and lesbian women all reported higher stress than gay men, and bisexual and lesbian women reported higher depressive symptoms than both gay and bisexual men. The pattern suggests that people exposed to layered or cumulative stressors—sexism stacked on top of stigma based on sexual orientation—bear the heaviest psychological load.

The correlational analyses revealed one of the study’s most intriguing findings. Experiences of discrimination correlated strongly with negative affect in every group, reaching r=.57 for gender nonconforming individuals and r=.54 for transgender individuals. But the link between discrimination and psychiatric symptoms held only for transgender individuals (correlations of roughly .40 to .43 with stress, anxiety, and depression) and, more modestly, for cisgender men and women. For the GNC group, discrimination predicted emotional distress but not diagnosable symptoms. The authors speculate that in this group, symptoms may be driven by other factors—possibly gender dysphoria or chronic identity invalidation—rather than discrete discriminatory events, though they caution this hypothesis remains untested.

The mediation analyses, the technical heart of the study, tested whether social support buffers the pathway from negative affect to psychiatric symptoms. For cisgender men, the answer was a clear yes: all three sources of support showed significant indirect effects, with family support alone accounting for roughly 5.4 percent of the total effect on stress, 4.9 percent on anxiety, and 6.2 percent on depression. For transgender individuals, family support emerged as the most consistent mediator, explaining approximately 14.1 percent of the total effect on stress, 20.1 percent on anxiety, and 15.2 percent on depression, while support from significant others buffered stress and depression. The authors interpret this in light of Brazil’s extreme structural vulnerability for trans people, which has ranked among the highest in the world for anti-trans violence; in that context, family and significant-other support may function not merely as emotional comfort but as a lifeline to care and survival.

For cisgender women and gender nonconforming individuals, however, no significant mediation appeared. The explanations the authors offer differ sharply between the two groups. For cisgender women, they invoke the cost of caring hypothesis: women’s close, emotionally intense networks expose them to empathic strain and reciprocal caregiving demands that may neutralize the measurable benefit of support, or the generic support measured may simply not match the instrumental help they actually need. For gender nonconforming individuals, the picture is bleaker. This group reported the lowest perceived social support of all—particularly from family and significant others—alongside the highest negative affect. The authors suggest that accumulated minority stressors, including chronic misgendering and identity invalidation rooted in the perceived transgression of binary gender expectations, may simply overwhelm any buffering effect that generically measured support could provide. They also note that the small GNC subgroup size may have limited statistical power to detect an indirect effect.

The study’s limitations are candidly acknowledged: it is cross-sectional, so causality cannot be established; recruitment was online, potentially excluding those without internet access; and intersecting dimensions such as race, income, and education were not directly analyzed despite Brazil’s profound social disparities. Still, the central message lands with force. Social support is not a one-size-fits-all protective factor—its effectiveness is shaped by each group’s specific stressors, relational dynamics, and the degree to which support actually affirms identity. The authors argue that interventions and policies must therefore be tailored and identity-informed, particularly for gender nonconforming and transgender people, rather than assuming that any support is good support. In a country where legal and social recognition of gender diversity remains contested, that distinction could shape who thrives and who suffers.

Subject of Research: Minority stress, social support, and mental health outcomes among gender and sexual minority groups in Brazil

Article Title: Minority Stress and Mental Health Outcomes in Gender and Sexual Diverse Groups in Brazil: Evidence on the Mediating Role of Social Support

Article References: Bravim, V. T., Pereira, C. S., Macedo, V. V. P. C., Ricardo, J., Medeiros, A. M., Nepomuceno, L. H., Bussinger, R. V., & do Nascimento, E. B. (2026). Minority Stress and Mental Health Outcomes in Gender and Sexual Diverse Groups in Brazil: Evidence on the Mediating Role of Social Support. Trends in Psychology. https://doi.org/10.1007/s43076-026-00546-3

Image Credits: AI Generated

DOI: 10.1007/s43076-026-00546-3

Keywords: minority stress, social support, mental health, Brazil, transgender, gender nonconforming, bisexual, discrimination, anxiety, depression, LGBTQ+, mediation analysis