Background ‘Intersectional stigma’ is a concept that has emerged to characterize the convergence of multiple stigmatized identities within a person or group, and to address their joint effects on health and wellbeing. While enquiry into the intersections of race, class, and gender serves as the historical and theoretical basis for intersectional stigma, there is little consensus on how best to characterize and analyze intersectional stigma, or on how to design interventions to address this complex phenomenon. The purpose of this paper is to highlight existing intersectional stigma literature, identify gaps in our methods for studying and addressing intersectional stigma, provide examples illustrating promising analytical approaches, and elucidate priorities for future health research. Discussion Evidence from the existing scientific literature, as well as the examples presented here, suggest that people in diverse settings experience intersecting forms of stigma that influence their mental and physical health and corresponding health behaviors. As different stigmas are often correlated and interrelated, the health impact of intersectional stigma is complex, generating a broad range of vulnerabilities and risks. Qualitative, quantitative, and mixed methods approaches are required to reduce the significant knowledge gaps that remain in our understanding of intersectional stigma, shared identity, and their effects on health. Conclusions Stigmatized identities, while often analyzed in isolation, do not exist in a vacuum. Intersecting forms of stigma are a common reality, yet they remain poorly understood. The development of instruments and methods to better characterize the mechanisms and effects of intersectional stigma in relation to various health conditions around the globe is vital. Only then will healthcare providers, public health officials, and advocates be able to design health interventions that capitalize on the positive aspects of shared identity, while reducing the burden of stigma.

We present a conceptual framework that highlights how unique dimensions of individual-level HIV-related stigma (perceived community stigma, experienced stigma, internalized stigma, and anticipated stigma) might differently affect the health of those living with HIV. HIV-related stigma is recognized as a barrier to both HIV prevention and engagement in HIV care, but little is known about the mechanisms through which stigma leads to worse health behaviors or outcomes. Our conceptual framework posits that, in the context of intersectional and structural stigmas, individual-level dimensions of HIV-related stigma operate through interpersonal factors, mental health, psychological resources, and biological stress pathways. A conceptual framework that encompasses recent advances in stigma science can inform future research and interventions aiming to address stigma as a driver of HIV-related health.

Few researchers have attempted to examine the mechanisms through which HIV-related stigma in the community is processed and experienced at an individual level by people living with HIV. We examined how the effects of perceived HIV stigma in the community on health outcomes for people living with HIV are mediated by internalized stigma and anticipated stigma. Participants (N = 203) from an HIV clinic completed self-report measures and their clinical data were obtained from medical records. Results suggested that the association between perceived community stigma and affective, cognitive, and mental health outcomes (self-esteem, depressive symptoms, avoidance coping, self-blame) are mediated by internalized stigma. Furthermore, a serial mediation model suggested that perceived community stigma leads to internalized stigma, which leads to anticipated community stigma, which in turn leads to lower medication adherence. The associations between perceived community stigma and interpersonal outcomes (social support, trust in physicians) were mediated by internalized stigma and anticipated stigma, again in a serial fashion (perceived community stigma leads to internalized stigma, which leads to anticipated stigma, which in turn leads to interpersonal outcomes). These results suggest that perceived HIV-related stigma in the community may cause people living with HIV to internalize stigma and anticipate stigmatizing experiences, resulting in adverse health and psychosocial outcomes—information that can be used to shape interventions.

Background Internalization of HIV-related stigma may inhibit a person’s ability to manage HIV disease through adherence to treatment regimens. Studies, mainly with white men, have suggested an association between internalized stigma and sub-optimal adherence to antiretroviral therapy (ART). However, there is a scarcity of research with women of different racial/ethnic backgrounds and on mediating mechanisms in the association between internalized stigma and ART adherence. Methods The Women’s Interagency HIV Study (WIHS) is a multi-center cohort study. Women living with HIV complete interviewer-administered questionnaires semi-annually. Cross-sectional analyses for the current article included 1168 women on ART for whom data on medication adherence were available from their last study visit between April 2013 and March 2014, when the internalized stigma measure was initially introduced. Results The association between internalized stigma and self-reported sub-optimal ART adherence was significant for those in racial/ethnic minority groups (AOR = 0.69, p = .009, CI [0.52, 0.91]), but not for non-Hispanic whites (AOR = 2.15, p = .19, CI [0.69, 6.73]). Depressive symptoms, loneliness, and low perceived social support mediated the association between internalized stigma and sub-optimal adherence in the whole sample, as well as in the subsample of minority participants. In serial mediation models, internalized stigma predicted less perceived social support (or higher loneliness), which in turn predicted more depressive symptoms, which in turn predicted sub-optimal medication adherence. Conclusions Findings suggest that interconnected psychosocial mechanisms affect ART adherence, and that improvements in adherence may require multi-faceted interventions addressing both mental health and interpersonal factors, especially for minority women.