Structural interventions for HIV prevention in the United States

Joint modeling HIV and HPV using a new hybrid agent-based network and compartmental simulation technique

Persons living with human immunodeficiency virus (HIV) have a disproportionately higher burden of human papillomavirus infection (HPV)-related cancers. Causal factors include both behavioral and biological. While pharmaceutical and care support interventions help address biological risk of coinfection, as social conditions are common drivers of behaviors, structural interventions are key part of behavioral interventions. Our objective is to develop a joint HIV-HPV model to evaluate the contribution of each factor, to subsequently inform intervention analyses. While compartmental modeling is sufficient for faster spreading HPV, network modeling is suitable for slower spreading HIV. However, using network modeling for jointly modeling HIV and HPV can generate computational complexities given their vastly varying disease epidemiology and disease burden across sub-population groups. We applied a recently developed mixed agent-based compartmental (MAC) simulation technique, which simulates persons with at least one slower spreading disease and their immediate contacts as agents in a network, and all other persons including those with faster spreading diseases in a compartmental model, with an evolving contact network algorithm maintaining the dynamics between the two models. We simulated HIV and HPV in the U.S. among heterosexual female, heterosexual male, and men who have sex with men (men only and men and women) (MSM), sub-populations that mix but have varying HIV burden, and cervical cancer among women. We conducted numerical analyses to evaluate the contribution of behavioral and biological factors to risk of cervical cancer among women with HIV. The model outputs for HIV, HPV, and cervical cancer compared well with surveillance estimates. Model estimates for relative prevalence of HPV (1.67 times) and relative incidence of cervical cancer (3.6 times), among women with HIV compared to women without, were also similar to that reported in observational studies in the literature. The fraction attributed to biological factors ranged from 22-38% for increased HPV prevalence and 80% for increased cervical cancer incidence, the remaining attributed to behavioral. The attribution of both behavioral and biological factors to increased HPV prevalence and cervical cancer incidence suggest the need for behavioral, structural, and pharmaceutical interventions. Validity of model results related to both individual and joint disease metrics serves as proof-of-concept of the MAC simulation technique. Understanding the contribution of behavioral and biological factors of risk helps inform interventions. Future work can expand the model to simulate sexual and care behaviors as functions of social conditions to jointly evaluate behavioral, structural, and pharmaceutical interventions for HIV and cervical cancer prevention.

State same-sex marriage policies and pre-exposure prophylaxis implementation among men who have sex with men in the United States

INTRODUCTION

More than 70% of new HIV diagnoses in the United States were among men who have sex with men (MSM) in 2019. Pre-exposure prophylaxis (PrEP) is a transformative innovation for reducing human immunodeficiency virus (HIV) infections. Structural stigma against sexual minorities, including in the form of state-level policies, may affect PrEP implementation. We evaluated whether lower structural stigma reflected by earlier year of state same-sex marriage legalization was associated with increased male PrEP prescriptions and male PrEP-to-need ratio (PnR), a ratio of PrEP prescriptions to new HIV diagnoses.

METHODS

We used 2012-2019 AIDSVu data on male PrEP prescriptions and male PnR in each US state and year. We used generalized estimating equations to evaluate the relationship between the timing of implementing state same-sex marriage policies and the outcomes of male PrEP prescriptions per 100,000 people and the male PnR. We adjusted for calendar year, Medicaid expansion and the political party of the governor in each state.

RESULTS

State implementation of same-sex marriage policies in earlier, relative to later, periods was associated with increases in the rate of male PrEP prescriptions and in the male PnR. Specifically, implementing state same-sex marriage policies between 2004 and 2011 and between 2012 and 2013 were each associated with greater rates of male PrEP prescriptions relative to implementing same-sex marriage policies between 2014 and 2015. Implementing state same-sex marriage policies between 2004 and 2011 as well as between 2012 and 2013 were both significantly associated with a greater male PnR relative to implementing same-sex marriage policies between 2014 and 2015. By 2019, the difference in male PrEP prescriptions was 137.9 (97.3-175.5) per 100,000 in states that implemented same-sex marriage in 2004-2011 and 27.2 (23.3-30.5) per 100,000 in states that implemented same-sex marriage from 2012 to 2013, relative to states that implemented same-sex marriage in 2014-2015.

CONCLUSIONS

Earlier implementation of state same-sex marriage policies was associated with greater rates of male PrEP prescriptions. Reducing state-level structural stigma may improve HIV prevention among MSM in the United States.

Exploring the Impact of an Integrated Trauma-Informed HIV and Vocational Intervention for Black/African American Women Living with HIV

Given the increased recognition of the role of social determinants of health on the prevalence of HIV in the United States, interventions that incorporate and address social determinants of HIV are essential. In response to the health disparities facing Black/African American women living with HIV, HIV activists and mental health specialists developed an innovative integrated HIV prevention and vocational development intervention, Common Threads, that underscores and addresses key economic and other social determinants of health experienced by Black/African American women within a trauma-informed care (TIC) framework. This research study applied grounded theory methods to conduct a qualitative study of Common Threads based on interviews with 21 women who participated in the Common Threads intervention. Participants shared several critical aspects of program components that reflected the TIC principles, endorsing a safe environment, trust building, and a sense of belonging. These components also encouraged transparency and promoted autonomy. Additionally, participants shared perceived program outcomes, including changes of knowledge and skills in four considering work domains (i.e., medical, psychosocial financial/legal resources, and vocational) that facilitate health and vocational development.

Socio-ecological Barriers to Viral Suppression Among Transgender Women Living with HIV in San Francisco and Los Angeles, California

Troubling disparities in viral suppression persist among transgender (trans) women living with HIV in the US. We utilized baseline data from a randomized controlled trial of a behavioral intervention among trans women living with HIV in San Francisco and Los Angeles, to identify the socio-ecological correlates of biologically confirmed viral suppression (< 200 HIV-1 RNA copies/mL). Among 253 participants, the mean age was 43 (SD = 11), 46% identified as Black or African American and 35% were virally non-suppressed. In adjusted Poisson regression models, the following barriers to viral suppression were identified: injection drug use [adjusted risk ratio (aRR) 0.78, 95% CI 0.65-0.93, Z = - 2.64, p = 0.008], methamphetamine use (aRR 0.65, 95% CI 0.51-0.83, Z = - 3.45, p = 0.001), amphetamine use (aRR 0.62, 95% CI 0.44-0.87, Z = - 2.75, p = 0.006), homelessness (aRR 0.79, 95% CI 0.63-0.98, Z = - 2.06, p = 0.039), and sex work (aRR 0.60, 95% CI 0.41-0.86, Z = - 2.77, p = 0.009). These findings underscore the importance of interventions that address the socio-ecological barriers to viral suppression among trans women in urban settings.

Sociocultural and structural influences on HIV Pre-Exposure Prophylaxis (PrEP) Engagement and Uptake among African American Young adults

BACKGROUND

Pre-exposure prophylaxis (PrEP) demonstrates effectiveness in decreasing new cases of HIV. However, few African Americans use PrEP, despite being disproportionately impacted by HIV. Understanding the influence of sociocultural and structural factors on PrEP use among multiple priority groups of African Americans, including but not limited to men who have sex with men, may improve PrEP engagement and uptake. The social ecological model (SEM) as a framework guided the understanding of how these factors operate on multiple levels to influence PrEP use among this population.

METHODS

This study derived data from the Afya PrEP study consisting of eleven focus groups (N = 63) with 18-29-year-old African American sexual and gender minority and heterosexual individuals at heightened behavioral vulnerability to HIV. We employed constructivist grounded theory processes to inductively analyze the data. A pooled kappa score of 0.90 indicated excellent inter-rater agreement.

RESULTS

Factors impacting PrEP engagement among African American young adults included: (1) Community/social network influences; (2) medical mistrust; (3) stigma; (4) PrEP availability and accessibility, which had two sub-categories: (a) cost and (b) where to obtain PrEP; and (5) PrEP engagement strategies, which had two sub-categories: (a) current AIDS service organizations' PrEP engagement practices and (b) recommended future PrEP engagement strategies. Categories one through three represent sociocultural factors, and categories four and five represent structural factors that influence perceptions and attitudes of African American young adults regarding PrEP.

CONCLUSION

Our study highlights sociocultural and structural factors that act as barriers and facilitators to PrEP engagement. The SEM guided the understanding of how these factors operated on multiple levels. One of the sociocultural factors, community/social network influences operated at the interpersonal level of the SEM; the other two, stigma and medical mistrust, operated at the community level. The structural factors (PrEP availability, accessibility, and engagement strategies) operated at the institutional/organizational level. Thus, multi-level interventions are warranted to improve PrEP engagement among various African American young adult priority groups.

Mapping Community-Engaged Implementation Strategies with Transgender Scientists, Stakeholders, and Trans-Led Community Organizations

PURPOSE OF REVIEW

Pre-exposure prophylaxis (PrEP) represents one of the most effective methods of prevention for HIV, but remains inequitable, leaving many transgender and nonbinary (trans) individuals unable to benefit from this resource. Deploying community-engaged PrEP implementation strategies for trans populations will be crucial for ending the HIV epidemic.

RECENT FINDINGS

While most PrEP studies have progressed in addressing pertinent research questions about gender-affirming care and PrEP at the biomedical and clinical levels, research on how to best implement gender-affirming PrEP systems at the social, community, and structural levels remains outstanding. The science of community-engaged implementation to build gender-affirming PrEP systems must be more fully developed. Most published PrEP studies with trans people report on outcomes rather than processes, leaving out important lessons learned about how to design, integrate, and implement PrEP in tandem with gender-affirming care. The expertise of trans scientists, stakeholders, and trans-led community organizations is essential to building gender-affirming PrEP systems.

Using Network Analysis to Assess the Effects of Trauma, Psychosocial, and Socioeconomic Factors on Health Outcomes Among Black Women Living with HIV

Black women living with HIV (BWLWH) face intersectional adversities impacting their wellbeing. This study utilized network analysis to assess the associations among adversities linked to racism, sexism, HIV stigma, and socioeconomic status (income, housing, education) and determine which adversities predict mental health outcomes, HIV viral load, and medication adherence more consistently among BWLWH. 119 BWLWH aged 18 years or older completed self-report measures on sociodemographics, adversity factors, and mental health outcomes. Viral load count was obtained through blood draws, and medication adherence was measured via Wisepill adherence monitoring device. Multiple regression analysis was used to assess if the more central factors in the network also predicted health outcomes more consistently than the less central factors. The four most central factors in the network were income, housing, gendered racial microaggression (GRM) frequency, and GRM appraisal. Multiple regression analysis revealed that GRM frequency, GRM appraisal, and the number of traumas contributed uniquely and were positively associated with both depressive symptoms and posttraumatic stress disorder symptoms. HIV-related discrimination contributed uniquely and was positively associated with HIV viral load.

Utilizing Soccer for Delivery of HIV and Substance Use Prevention for Young South African Men: 6-Month Outcomes of a Cluster Randomized Controlled Trial

Young men in South Africa face the intersecting epidemics of HIV, substance use and endemic poverty. We tested the effectiveness of a behavioral intervention using soccer training to reduce the cluster of risks associated with HIV and substance use. This cluster randomized controlled trial was conducted with men aged 18-29 years old in 27 neighborhoods in the townships of Cape Town, South Africa. Neighborhoods were randomized to receive for 6 months either: (1) Soccer League (SL; n = 18 neighborhoods, n = 778 men) who attended soccer three times weekly (72 sessions; 94% uptake, 45.5% weekly attendance rate), combined with an HIV/substance use, cognitive-behavioral intervention; or (2) a Control Condition (CC; n = 9; 415 men) who received educational materials and referrals at 3 month intervals. The primary outcome was the number of significant changes in a cluster of outcomes including HIV-related risks, substance abuse, employment/income, mental health, violence, and community engagement. There was only one significant difference on the rapid diagnostic tests for mandrax at 6 months, an insufficient number of changes to indicate a successful intervention. A group-based behavioral intervention was ineffective in addressing multiple risk behaviors among at-risk young men, similar to the findings of several recent soccer-related interventions. Early adulthood may be too late to alter well-established patterns of risk behaviors.Clinical Trial Registration This trial was prospectively registered on 24 November 2014 with ClinicalTrials.gov NCT02358226.

Brief Report: Physician Reimbursement and Retention in HIV Care: Racial Disparities in the US South

BACKGROUND

Retention in HIV care remains a national challenge. Addressing structural barriers to care may improve retention. We examined the association between physician reimbursement and retention in HIV care, including racial differences.

METHODS

We integrated person-level administrative claims (Medicaid Analytic eXtract, 2008-2012), state Medicaid-to-Medicare physician fee ratios (Urban Institute, 2008, 2012), and county characteristics for 15 Southern states plus District of Columbia. The fee ratio is a standardized measure of physician reimbursement capturing Medicaid relative to Medicare physician reimbursement across states. Generalized estimating equations assessed the association between the fee ratio and retention (≥2 care markers ≥90 days apart in a calendar year). Stratified analyses assessed racial differences. We varied definitions of retention, subsamples, and definitions of the fee ratio, including the fee ratio at parity.

RESULTS

The sample included 55,237 adult Medicaid enrollees with HIV (179,002 enrollee years). Enrollees were retained in HIV care for 76.6% of their enrollment years, with retention lower among non-Hispanic Black (76.1%) versus non-Hispanic White enrollees (81.3%, P < 0.001). A 10-percentage point increase in physician reimbursement was associated with 4% increased odds of retention (adjusted odds ratio 1.04, 95% confidence interval: 1.01 to 1.07). In stratified analyses, the positive, significant association occurred among non-Hispanic Black (1.08, 1.05-1.12) but not non-Hispanic White enrollees (0.87, 0.74-1.02). Findings were robust across sensitivity analyses. When the fee ratio reached parity, predicted retention increased significantly overall and for non-Hispanic Black enrollees.

CONCLUSION

Higher physician reimbursement may improve retention in HIV care, particularly among non-Hispanic Black individuals, and could be a mechanism to promote health equity.

Modelo multinível na identificação de fatores de risco comportamentais e estruturais ao HIV: revisão integrativa

RESUMO Objetivos: investigar estudos que adotaram o modelo de análise multinível na identificação de fatores de risco comportamentais e estruturais, que estão associados a infecção pelo HIV. Métodos: revisão integrativa da literatura com estudos disponíveis na íntegra, obtidos nas bases EMBASE, CINAHL, Pubmed e Scopus, cujos descritores selecionados foram os termos constantes: “HIV”, “multilevel analysis”, “behavior”. Resultados: a pesquisa resultou em 236 artigos. Destes, dez artigos compuseram a amostra. Desvantagem econômica, características de vizinhança, instabilidade habitacional, encarceramento, sexo transacional, múltiplos parceiros, abuso de substâncias e idade da primeira relação sexual foram classificados como fatores de risco estruturais e comportamentais ao HIV. Redução da desvantagem socioeconômica, fornecimento de estabilidade habitacional e uso de preservativos foram associados a fatores de proteção à exposição ao HIV. Conclusões: com a aplicabilidade do modelo multinível nos estudos de investigação de fatores de risco, foi possível identificar os elementos estruturais e comportamentais de risco ao HIV.

A new mixed agent-based network and compartmental simulation framework for joint modeling of related infectious diseases- application to sexually transmitted infections

Background

A model that jointly simulates infectious diseases with common modes of transmission can serve as a decision-analytic tool to identify optimal intervention combinations for overall disease prevention. In the United States, sexually transmitted infections (STIs) are a huge economic burden, with a large fraction of the burden attributed to HIV. Data also show interactions between HIV and other sexually transmitted infections (STIs), such as higher risk of acquisition and progression of co-infections among persons with HIV compared to persons without. However, given the wide range in prevalence and incidence burdens of STIs, current compartmental or agent-based network simulation methods alone are insufficient or computationally burdensome for joint disease modeling. Further, causal factors for higher risk of coinfection could be both behavioral (i.e., compounding effects of individual behaviors, network structures, and care behaviors) and biological (i.e., presence of one disease can biologically increase the risk of another). However, the data on the fraction attributed to each are limited.

Methods

We present a new mixed agent-based compartmental (MAC) framework for jointly modeling STIs. It uses a combination of a new agent-based evolving network modeling (ABENM) technique for lower-prevalence diseases and compartmental modeling for higher-prevalence diseases. As a demonstration, we applied MAC to simulate lower-prevalence HIV in the United States and a higher-prevalence hypothetical Disease 2, using a range of transmission and progression rates to generate burdens replicative of the wide range of STIs. We simulated sexual transmissions among heterosexual males, heterosexual females, and men who have sex with men (men only and men and women). Setting the biological risk of co-infection to zero, we conducted numerical analyses to evaluate the influence of behavioral factors alone on disease dynamics.

Results

The contribution of behavioral factors to risk of coinfection was sensitive to disease burden, care access, and population heterogeneity and mixing. The contribution of behavioral factors was generally lower than observed risk of coinfections for the range of hypothetical prevalence studied here, suggesting potential role of biological factors, that should be investigated further specific to an STI.

Conclusions

The purpose of this study is to present a new simulation technique for jointly modeling infectious diseases that have common modes of transmission but varying epidemiological features. The numerical analysis serves as proof-of-concept for the application to STIs. Interactions between diseases are influenced by behavioral factors, are sensitive to care access and population features, and are likely exacerbated by biological factors. Social and economic conditions are among key drivers of behaviors that increase STI transmission, and thus, structural interventions are a key part of behavioral interventions. Joint modeling of diseases helps comprehensively simulate behavioral and biological factors of disease interactions to evaluate the true impact of common structural interventions on overall disease prevention. The new simulation framework is especially suited to simulate behavior as a function of social determinants, and further, to identify optimal combinations of common structural and disease-specific interventions.

Multilevel model in the identification of behavioral and structural risk factors for HIV: integrative review

OBJECTIVES

to investigate studies that adopted the multilevel analysis model to identify behavioral and structural risk factors associated with HIV infection.

METHODS

an integrative review of the literature with studies available in full, obtained from EMBASE, CINAHL, Pubmed, and Scopus, whose selected descriptors were the indexed terms: "HIV", "multilevel analysis" and "behavior".

RESULTS

the search resulted in 236 studies. Out of these, ten studies comprised the sample. Economic disadvantage, neighborhood characteristics, housing instability, incarceration, transactional sex, multiple partners, substance abuse, and age at first intercourse were classified as structural and behavioral risk factors for HIV. Reduced socioeconomic disadvantage, provision of housing stability, and condom use were associated with protective factors for HIV exposure.

CONCLUSIONS

by applying the multilevel model in risk factor research studies, it was possible to identify the structural and behavioral elements of HIV risk.

Structural Barriers to HIV Prevention and Services: Perspectives of African American Women in Low-Income Communities

BACKGROUND

African American women are at a disproportionate HIV risk compared with other U.S. women. Studies show that complex structural and social determinants, rather than individual behaviors, place African American women at greater risk of HIV infection; however, little is known about women's views of what puts them at risk.

AIMS

This study sought to comprehend the perceptions of African American women living in low-income housing regarding the factors that influence both their personal sexual health behaviors and use of HIV prevention services.

METHODS

We conducted seven focus groups with 48 African American women from 10 public housing communities in a small city in the southeastern United States. We analyzed the focus group transcripts using thematic data analysis to identify salient themes and points of interest related to the study aim.

RESULTS

Women identified factors related to the health care system (trustworthiness of the health care system), the external environment (racism, classism, patriarchal structures, and violence/crime), as well as predisposing (health beliefs, stigma, and gender norms), enabling (agency to negotiate gendered power), and need (perceived HIV risk and perceptions of partner characteristics) features of individuals in the population.

CONCLUSION

African American women living in public housing are especially vulnerable to HIV infection due to intersectional discrimination based on racism, classism, gender power dynamics, and community conditions. Our findings confirm the need to develop HIV intervention programming addressing intersectional identities of those making up the communities they plan to address, and being informed by those living in the communities they plan to act on.

HIV and Mental Health Services in the US South: A Meso Analysis

The US South is disproportionately impacted by HIV. Social, cultural, economic, and political characteristics of the South shape access to mental health services leaving adverse impacts on health and wellness outcomes among People Living with HIV. The aim of this paper was to: (a) identify meso factors (at individual, organizational and community-level manifestations) which impact mental health services among People living with HIV in the South of those factors and (b) pose community-articulated recommendation and strategies. Through qualitative interviews with People Living with HIV and service providers, this study found that the meso factors of restricted funding and compounding stigma shaped mental health services in the South. Given the disproportionate rate of HIV, lack of mental health care, and landscape of socio-political factors unique to the region, attention to intervenable meso factors and community-based strategies are needed to enhance mental health services and respond to the HIV epidemic in the US South.

Implementing pre-exposure prophylaxis for HIV prevention in women: the role of the obstetrician-gynecologist

Pre-exposure prophylaxis is a powerful HIV prevention tool that can reduce the risk of acquiring HIV by >90% from unprotected sex and >70% from injection drug use. The peripartum period is a time of heightened HIV risk, which underscores the need for HIV prevention counseling and the provision of biomedical interventions in all stages of a woman's reproductive life. It is important that women receive nonjudgmental care, have access to discussions of HIV risk, and are provided with pre-exposure prophylaxis counseling from their women's health practitioners. Obstetrician-gynecologists and other women's health providers are uniquely positioned to identify women who would benefit from pre-exposure prophylaxis and provide it in trusted clinical settings.

Moving toward equity: fostering transdisciplinary research between the social and behavioral sciences and implementation science to end the HIV epidemic

PURPOSE OF REVIEW

Since the beginning of the HIV epidemic, social and behavioral scientists have developed interventions to stem the spread of the virus. The dissemination of these interventions has traditionally been a lengthy process; however, implementation science (IS) offers a route toward hastening delivery of effective interventions. A transdisciplinary approach, wherein IS informs and is informed by social and behavioral sciences (SBS) as well as community participation, offers a strategy for more efficiently moving toward health equity and ending the HIV epidemic.

RECENT FINDINGS

There has been considerable growth in HIV research utilizing IS theories, methods and frameworks. Many of these studies have been multi or interdisciplinary in nature, demonstrating the ways that IS and SBS can strengthen one another. We also find areas for continued progress toward transdisciplinarity.

SUMMARY

We review literature from 2020 to 2021, exploring the ways IS and SBS have been used in tandem to develop, evaluate and disseminate HIV interventions. We highlight the interplay between disciplines and make a case for moving toward transdisciplinarity, which would yield new, integrated frameworks that can improve prevention and treatment efforts, moving us closer to achieving health equity.

‘We have goals but [it is difficult]’. Barriers to antiretroviral therapy adherence among women using alcohol and other drugs living with HIV in South Africa

Background

Methods

Results

Conclusion

Patient or Public Contribution

Emerging Zoonotic Infections, Social Processes and Their Measurement and Enhanced Surveillance to Improve Zoonotic Epidemic Responses: A "Big Events" Perspective

Zoonotic epidemics and pandemics have become frequent. From HIV/AIDS through COVID-19, they demonstrate that pandemics are social processes as well as health occurrences. The roots of these pandemics lie in changes in the socioeconomic interface between humanity and non-human host species that facilitate interspecies transmission. The degree to which zoonoses spread has been increased by the greater speed and extent of modern transportation and trade. Pre-existing sociopolitical and economic structures and conflicts in societies also affect pathogen propagation. As an epidemic develops, it can itself become a social and political factor, and change and interact with pre-existing sociobehavioral norms and institutional structures. This paper uses a "Big Events" approach to frame these processes. Based on this framework, we discuss how social readiness surveys implemented both before and during an outbreak might help public health predict how overall systems might react to an epidemic and/or to disease control measures, and thus might inform interventions to mitigate potential adverse outcomes or possibly preventing outbreaks from developing into epidemics. We conclude by considering what "pathways measures", in addition to those we and others have already developed, might usefully be developed and validated to assist outbreak and epidemic disease responses.

Peer- and community-led responses to HIV: A scoping review

INTRODUCTION

In June 2021, United Nations (UN) Member States committed to ambitious targets for scaling up community-led responses by 2025 toward meeting the goals of ending the AIDS epidemic by 2030. These targets build on UN Member States 2016 commitments to ensure that 30% of HIV testing and treatment programmes are community-led by 2030. At its current pace, the world is not likely to meet these nor other global HIV targets, as evidenced by current epidemiologic trends. The COVID-19 pandemic threatens to further slow momentum made to date. The purpose of this paper is to review available evidence on the comparative advantages of community-led HIV responses that can better inform policy making towards getting the world back on track.

METHODS

We conducted a scoping review to gather available evidence on peer- and community-led HIV responses. Using UNAIDS' definition of 'community-led' and following PRISMA guidelines, we searched peer-reviewed literature published from January 1982 through September 2020. We limited our search to articles reporting findings from randomized controlled trials as well as from quasi-experimental, prospective, pre/post-test evaluation, and cross-sectional study designs. The overall goals of this scoping review were to gather available evidence on community-led responses and their impact on HIV outcomes, and to identify key concepts that can be used to quickly inform policy, practice, and research.

FINDINGS

Our initial search yielded 279 records. After screening for relevance and conducting cross-validation, 48 articles were selected. Most studies took place in the global south (n = 27) and a third (n = 17) involved youth. Sixty-five percent of articles (n = 31) described the comparative advantage of peer- and community-led direct services, e.g., prevention and education (n = 23) testing, care, and treatment programs (n = 8). We identified more than 40 beneficial outcomes linked to a range of peer- and community-led HIV activities. They include improved HIV-related knowledge, attitudes, intentions, self-efficacy, risk behaviours, risk appraisals, health literacy, adherence, and viral suppression. Ten studies reported improvements in HIV service access, quality, linkage, utilization, and retention resulting from peer- or community-led programs or initiatives. Three studies reported structural level changes, including positive influences on clinic wait times, treatment stockouts, service coverage, and exclusionary practices.

CONCLUSIONS AND RECOMMENDATIONS

Findings from our scoping review underscore the comparative advantage of peer- and community-led HIV responses. Specifically, the evidence from the published literature leads us to recommend, where possible, that prevention programs, especially those intended for people living with and disproportionately affected by HIV, be peer- and community-led. In addition, treatment services should strive to integrate specific peer- and community-led components informed by differentiated care models. Future research is needed and should focus on generating additional quantitative evidence on cost effectiveness and on the synergistic effects of bundling two or more peer- and community-led interventions.

Structural Interventions for HIV Prevention and Care Among US Men Who Have Sex with Men: A Systematic Review of Evidence, Gaps, and Future Priorities

The preponderance of HIV interventions have been behavioral, targeting individual, dyadic, or group dynamics. However, structural-level interventions are required to decrease HIV transmission and increase engagement in care, especially for men who have sex with men (MSM), particularly Black and Latinx MSM. A systematic literature review was conducted to assess the current state of structural interventions; only two studies detailing structural interventions related to HIV for Black and Latinx MSM in the US were identified. An additional 91 studies which discussed structural-level barriers to optimal HIV outcomes among MSM, yet which did not directly evaluate a structural intervention, were also identified. While this paucity of findings was discouraging, it was not unexpected. Results of the systematic review were used to inform guidelines for the implementation and evaluation of structural interventions to address HIV among MSM in the U.S. These include deploying specific interventions for multiply marginalized individuals, prioritizing the deconstruction of structural stigma, and expanding the capacity of researchers to evaluate “natural” policy-level structural interventions through a standardization of methods for rapid evaluative response, and through universal application of sex, sexual orientation, and gender identity demographic measures.

Messaging matters: achieving equity in the HIV response through public health communication

Public health messages shape how the world understands the HIV epidemic. Considerable inequalities remain in HIV care continuum indicators by subpopulation and geography (eg, highest infection and mortality burden among men who have sex with men and people who live in sub-Saharan Africa). Health equity-focused approaches are necessary in this next decade to close gaps in the HIV epidemic. Between 1981 and 1989, HIV messages triggered fear and victim blaming, and highlighted behaviours of a few marginalised groups as deviant. Between 1990 and 1999, messages signalled that HIV was a growing challenge for the world and required multisector approaches that addressed structural drivers of inequality. Between 2000 and 2009, messages highlighted universal testing, while advances in HIV testing made these messages easier for individuals to respond to than in previous decades. Currently, messages signal that ending HIV is possible, people can live productive lives with HIV, and transmission to people without HIV can be eliminated. Public health messaging about the HIV epidemic has evolved substantially over the past 40 years. Future HIV messaging should be driven by health equity principles that include an increased representation of key populations in message design and dissemination, transparency of funding, and communicating any impact that campaigns have had on closing health inequalities.

Missed Opportunities for HIV Prevention in Perinatal Care Settings in the United States

Universal opt-out HIV screening in pregnancy is an essential intervention toward eliminating perinatal HIV transmission in the US. However, it fails to identify pregnant people who are HIV negative at the time of testing but are at ongoing risk for HIV acquisition. Those of us involved in caring for women living with HIV are acutely aware of the many diagnoses of HIV that might have been prevented if only a partner had been tested for HIV or preexposure prophylaxis (PrEP) had been offered to a patient. This perspective article will review current recommendations and evidence-based interventions to evaluate missed opportunities for HIV prevention in US perinatal care settings. We identified three barriers to implementation of HIV prevention strategies during pregnancy and breastfeeding: (1) HIV risk for women is underestimated and poorly defined in clinical practice; (2) Partner testing is challenging and implementation studies in the US are lacking; and (3) PrEP remains underutilized. In March 2020, the National Perinatal HIV Hotline convened a group of clinicians and researchers specializing in perinatal HIV care to a case-based discussion of missed opportunities in perinatal HIV prevention. From our review of the literature via PubMed search as well as expert opinions gathered in this discussion, we make recommendations for addressing these barriers.

A Review of the State of the Science of HIV and Stigma: Context, Conceptualization, Measurement, Interventions, Gaps, and Future Priorities

ABSTRACT

Stigma is a fundamental cause of health inequities. As such, stigma is a major barrier to HIV prevention, care, and treatment. This review will examine the concept of stigma, explicating the mechanisms of action of HIV-related stigma while also examining intersectional stigma and structural stigma. Instruments to measure HIV-related stigma and its mechanisms of action, as well as stigma enacted and experienced by HIV health care providers, will also be reviewed. This article will conclude with a review of stigma interventions, gaps in the literature, and priorities for future HIV, intersectional, and structural stigma research.

A Review of Recent HIV Prevention Interventions and Future Considerations for Nursing Science

ABSTRACT

As our knowledge of HIV evolved over the decades, so have the approaches taken to prevent its transmission. Public health scholars and practitioners have engaged in four key strategies for HIV prevention: behavioral-, technological-, biomedical-, and structural/community-level interventions. We reviewed recent literature in these areas to provide an overview of current advances in HIV prevention science in the United States. Building on classical approaches, current HIV prevention models leverage intimate partners, families, social media, emerging technologies, medication therapy, and policy modifications to effect change. Although much progress has been made, additional work is needed to achieve the national goal of ending the HIV epidemic by 2030. Nurses are in a prime position to advance HIV prevention science in partnership with transdisciplinary experts from other fields (e.g., psychology, informatics, and social work). Future considerations for nursing science include leveraging transdisciplinary collaborations and consider social and structural challenges for individual-level interventions.

Topical microbicides for preventing sexually transmitted infections

BACKGROUND

This is a updated version of our Cochrane Review published in Issue 6, 2012. Sexually-transmitted infections (STIs) continue to rise worldwide, imposing an enormous morbidity and mortality burden. Effective prevention strategies, including microbicides, are needed to achieve the goals of the World Heath Organization (WHO) global strategy for the prevention and control of these infections.

OBJECTIVES

To determine the effectiveness and safety of topical microbicides for preventing acquisition of STIs, including HIV.

SEARCH METHODS

We undertook a comprehensive search of the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase, LILACS, CLIB, Web of Science, ClinicalTrials.gov, WHO International Clinical Trials Registry Platform, and reference lists of relevant articles up to August 2020. In addition, we contacted relevant organisations and experts.

SELECTION CRITERIA

We included randomised controlled trials of vaginal microbicides compared to placebo (except for nonoxynol-9 because it is covered in related Cochrane Reviews). Eligible participants were sexually-active non-pregnant, WSM and MSM, who had no laboratory confirmed STIs.

DATA COLLECTION AND ANALYSIS

Two review authors independently screened and selected studies, extracted data, and assessed risks of bias in duplicate, resolving differences by consensus. We conducted a fixed-effect meta-analysis, stratified by type of microbicide, and assessed the certainty of the evidence using the GRADE approach.

MAIN RESULTS

We included eight trials from the earlier version of the review and four new trials, i.e. a total of 12 trials with 32,464 participants (all WSM). We did not find any eligible study that enrolled MSM or reported fungal STI as an outcome. We have no study awaiting assessment. All 12 trials were conducted in sub-Saharan Africa, with one having a study site in the USA, and another having a site in India. Vaginal microbicides tested were BufferGel and PRO 2000 (1 trial, 3101 women), Carraguard (1 trial, 6202 women), cellulose sulphate (2 trials, 3069 women), dapivirine (2 trials, 4588 women), PRO 2000 (1 trial, 9385 women), C31G (SAVVY) (2 trials, 4295 women), and tenofovir (3 trials, 4958 women). All microbicides were compared to placebo and all trials had low risk of bias. Dapivirine probably reduces the risk of acquiring HIV infection: risk ratio (RR) 0.71, (95% confidence interval (CI) 0.57 to 0.89, I² = 0%, 2 trials, 4588 women; moderate-certainty evidence). The other microbicides may result in little to no difference in the risk of acquiring HIV (low-certainty evidence); including tenofovir (RR 0.83, 95% CI 0.68 to 1.02, cellulose sulphate (RR 1.20, 95% CI 0.74 to 1.95, BufferGel (RR 1.05, 95% CI 0.73 to 1.52), Carraguard (RR 0.89, 95% CI 0.71 to 1.11), PRO 2000 (RR 0.93, 95% CI 0.77 to 1.14), and SAVVY (RR 1.38, 95% CI 0.79 to 2.41). Existing evidence suggests that cellulose sulphate (RR 0.99, 95% CI 0.37 to 2.62, 1 trial, 1425 women), and PRO 2000 (RR 0.95, 95% CI 0.73 to 1.23) may result in little to no difference in the risk of getting herpes simplex virus type 2 infection (low-certainty evidence). Two studies reported data on tenofovir's effect on this virus. One suggested that tenofovir may reduce the risk (RR 0.55, 95% CI 0.36 to 0.82; 224 participants) while the other did not find evidence of an effect (RR 0.94, 95% CI 0.85 to 1.03; 1003 participants). We have not reported the pooled result because of substantial heterogeneity of effect between the two studies (l² = 85%). The evidence also suggests that dapivirine (RR 1.70, 95% CI 0.63 to 4.59), tenofovir (RR 1.27, 95% CI 0.58 to 2.78), cellulose sulphate (RR 0.69, 95% CI 0.26 to 1.81), and (Carraguard (RR 1.07, 95% CI 0.75 to 1.52) may have little or no effect on the risk of acquiring syphilis (low-certainty evidence). In addition, dapivirine (RR 0.97, 95% CI 0.89 to 1.07), tenofovir (RR 0.90, 95% CI 0.71 to 1.13), cellulose sulphate (RR 0.70, 95% CI 0.49 to 0.99), BufferGel (RR 0.97, 95% CI 0.65 to 1.45), Carraguard (RR 0.96, 95% CI 0.83 to 1.12), and PRO 2000 (RR 1.01, 95% CI 0.84 to 1.22) may result in little to no difference in the risk of acquiring chlamydia infection (low-certainty evidence). The evidence also suggests that current topical microbicides may not have an effect on the risk of acquiring gonorrhoea, condyloma acuminatum, trichomoniasis, or human papillomavirus infection (low-certainty evidence). Microbicide use in the 12 trials, compared to placebo, did not lead to any difference in adverse event rates. No study reported on acceptability of the intervention.  AUTHORS' CONCLUSIONS: Current evidence shows that vaginal dapivirine microbicide probably reduces HIV acquisition in women who have sex with men. Other types of vaginal microbicides have not shown evidence of an effect on acquisition of STIs, including HIV. Further research should continue on the development and testing of new microbicides.

Correlates of Casual Sex Amidst Vulnerability to HIV Among ACB Heterosexual Men in Ottawa and Windsor, Ontario Canada

Heterosexual exposure is the second highest means of HIV transmission; and African, Caribbean, and Black (ACB) men face greater risks. Black men can reduce the disproportionately high HIV prevalence in their communities by changing their socially misconstrued masculine role. We analysed factors predisposing heterosexual ACB men to risky sexual behaviour, particularly multiple casual sex partnerships in Ottawa and Windsor, Ontario, Canada. We employed quantitative datasets from a broader mixed methods study within hierarchical logistic regression model to determine the association between psychosocial factors and casual sex partnerships. The model controlled for city level clustering effect and sociodemographic factors. Precisely 55.0% (n = 52) of men in Windsor and 70.2% (n = 99) in Ottawa had one or more casual sex partners within the past year. Some of them (Windsor, 32.1% [n = 18], and Ottawa, 34.3% [n = 36]) used condom always. HIV knowledge (OR = 0.80, p < 0.01, CI = 0.67/0.95) and pro-Black community attitudes (OR = 0.72, p < 0.05, CI = 0.56/0.94) decreased the odds of casual sex partnerships, while traditional masculinity scores (OR = 1.21, p < 0.05, CI = 1.01/1.46) increased it. The behavioural factors jointly predicted casual sex more than sociodemographic variables and city of residence. We conclude that heterosexual ACB men are predisposed to casual sex partnerships at differing magnitude across cities, and this may constitute a risk factor for HIV exposure. Hence, propagation of HIV knowledge, community attitudes and reconstruction of masculine ideology among ACB men, with due attention to geopolitical differences in city of residence, are recommended.

Improve the Quality of Life Related to HIV and the Black Community: HIV and AIDS Inequity in the Black Community: Proximal Solutions to Distal Determinants

This literature review describes the historical impact of HIV and AIDS among Black populations in United States (US), as well as the misalignment between root causes of HIV-related inequities and HIV prevention efforts. Specifically, we describe how distal factors (including structural racism) contribute to the disproportionate rates of HIV infection within Black communities. Further, we highlight consequences of focusing primarily on proximal determinants of acquiring HIV. Finally, we share some brief conclusions and recommendations to help move towards eliminating HIV and AIDS inequities among Black populations.

Socio-Structural and Neighborhood Predictors of Incident Criminal Justice Involvement in a Population-Based Cohort of Young Black MSM and Transgender Women

Black men who have sex with men (MSM) and transgender women are disproportionately affected by criminal justice involvement (CJI) and HIV. This study recruited 618 young Black MSM and transgender women in Chicago, IL, using respondent-driven sampling between 2013 and 2014. Random effects logistic regression evaluated predictors of incident CJI over 18 months of follow-up. Controlling for respondent age, gender and sexual identity, spirituality (aOR 0.56, 95% CI 0.33-0.96), and presence of a mother figure (aOR 0.41, 95% CI 0.19-0.89) were protective against CJI. Economic hardship (financial or residential instability vs. neither aOR 2.23, 95% CI 1.10-4.51), two or more past episodes of CJI vs. none (aOR 2.66, 95% CI 1.40-5.66), and substance use (marijuana use vs. none aOR 2.79, 95% CI 1.23-6.34; other drug use vs. none aOR 4.49, 95% CI 1.66-12.16) were associated with CJI during follow-up. Research to identify and leverage resilience factors that can buffer the effects of socioeconomic marginalization may increase the effectiveness of interventions to address the socio-structural factors that increase the risk for CJI among Black MSM and transgender women. Given the intersection of incarceration, HIV and other STIs, and socio-structural stressors, criminal justice settings are important venues for interventions to reduce health inequities in these populations.

Structural Barriers to Women's Sustained Engagement in HIV Care in Southern California

Since the introduction of antiretroviral therapy, the number of women living with HIV (WLHIV) continues to increase. Despite the decrease in HIV diagnosis among women in California, less than half of WLHIV are retained in HIV care. Structural barriers put women at increased risk for delayed HIV diagnosis, delayed entry into HIV care, and poorer treatment outcomes. The objective of this qualitative analysis is to identify how structural barriers negatively impact women's sustained engagement in HIV care in Southern California. WLHIV accessing local HIV support services participated in a qualitative study by completing a semi-structured interview and brief survey between January and April 2015 (n = 30). Poverty, unemployment, housing instability, and needs for transportation emerged as the dominant structural barriers for women when discussing their challenges with sustained engagement in HIV care. System-level interventions that decrease these noted barriers may help improve HIV care continuum for women living in Southern California.

Work2Prevent, an Employment Intervention Program as HIV Prevention for Young Men Who Have Sex With Men and Transgender Youth of Color (Phase 3): Protocol for a Single-Arm Community-Based Trial to Assess Feasibility and Acceptability in a Real-World Setting

BACKGROUND

In the United States, young cisgender men who have sex with men (YMSM), young transgender women (YTW), and gender nonconforming (GNC) youth face elevated rates of HIV infection. However, racial and ethnic disparities in adolescent HIV infection cannot be attributed to individual-level factors alone and are situated within larger social and structural contexts that marginalize and predispose sexual and gender minority youth of color to HIV. Addressing broader ecological factors that drive transmission requires interventions that focus on the distal drivers of HIV infection, including violence exposure, housing, food insecurity, educational attainment, and employment. Given the ways that economic instability may make YMSM, YTW, and GNC youth of color vulnerable to HIV exposure, this study focuses on employment as an HIV prevention intervention. More specifically, the intervention, called Work2Prevent (W2P), targets economic stability through job readiness and employment as a means of preventing behaviors and factors associated with adolescent and young adult HIV, such as transactional sex work and homelessness. The intervention was adapted from iFOUR, an evidence-based employment program for HIV-positive adults in phase 1 of this study, and pilot tested in a university-based setting in phase 2.

OBJECTIVE

This paper aims to describe the protocol for the community-based test phase of W2P. The purpose of this phase was to pilot test a tailored, theoretically informed employment intervention program among YMSM, YTW, and GNC youth of color within a lesbian, gay, bisexual, transgender, and queer (LGBTQ) community setting.

METHODS

The employment intervention was pilot tested using a single-arm pretest-posttest trial design implemented among a sample of vulnerable YMSM, YTW, and GNC youth of color using services within a community-based LGBTQ center. Assessments will examine intervention feasibility, acceptability, and preliminary estimates of efficacy.

RESULTS

Phase 3 of W2P research activities began in May 2019 and was completed in December 2019. Overall, 41 participants were enrolled in the community-based pilot.

CONCLUSIONS

This study will assess intervention feasibility and acceptability in the target populations and determine preliminary efficacy of the intervention to increase employment and reduce vulnerability to HIV when implemented in a community-based setting serving LGBTQ youth of color. Testing the intervention in a community setting is an opportunity to evaluate how recruitment, retention, and other outcomes are impacted by delivery in a venue akin to where this intervention could eventually be used by nonresearchers. If W2P demonstrates feasibility and acceptability, a larger multisite trial implemented in multiple community settings serving YMSM, YTW, and GNC youth of color is planned.

TRIAL REGISTRATION

ClinicalTrials.gov NCT03313310; https://clinicaltrials.gov/ct2/show/NCT03313310.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/18051.

The Association Between the Social Determinants of Health and HIV Control in Miami-Dade County ZIP Codes, 2017

BACKGROUND

There were 28,055 people living with HIV (PLWH) in Miami-Dade County (MDC) in 2017; 40.1% was either out of care or was not virally suppressed (uncontrolled HIV). The purpose of this study was to determine the association between the social determinants of health (SDOH) and the number of persons with uncontrolled HIV in MDC.

SETTING

This cross-sectional study included PLWH 15 and older with uncontrolled HIV in MDC, 2017. Data on PLWH's viral load, age, gender, mode of HIV transmission, and race/ethnicity were aggregated to the ZIP code level. All five SDOH per HealthyPeople 2020 were represented: economic stability, education, social and community context, health and healthcare, and neighborhood and built environment.

METHODS

Descriptive analyses on all study variables and a principal component analysis on the SDOH variables were performed. To account for overdispersion, multivariate negative binomial regressions were run while controlling for confounders and testing for significant interactions.

RESULTS

The results of the regression analysis indicated that an increase in Factor 1 (economic stability, education, and health and healthcare determinants) was associated with a statistically significant increase in the number of PLWH with uncontrolled HIV. Additionally, we found a significant interaction between Factor 1 and White race. Among persons of low socioeconomic status, White race is associated with a reduction in PLWH with uncontrolled HIV.

CONCLUSIONS

These results suggest that reducing poverty and increasing education and rates of health insurance should result in significant reductions in PLWH with uncontrolled HIV. These results have the potential to influence future policy, interventions for retention, adherence, and continuity of care to improve suppression rates in MDC.

An Employment Intervention Program (Work2Prevent) for Young Men Who Have Sex With Men and Transgender Youth of Color (Phase 1): Protocol for Determining Essential Intervention Components Using Qualitative Interviews and Focus Groups

BACKGROUND

HIV continues to have a disparate impact on young cisgender men who have sex with men (YMSM), young trans women (YTW), and gender-nonconforming (GNC) youth who are assigned male at birth. Outcomes are generally worse among youth of color. Experiences of discrimination and marginalization often limit educational attainment and may even more directly limit access to gainful employment. Though seemingly distal, these experiences influence young people's proximity to HIV risk by limiting their access to health care and potentially moving them toward sex work as a means of income as well as increased substance use. Work2Prevent (W2P) aims to achieve economic stability through employment as a structural-level intervention for preventing adolescent and young adult HIV infection. The study will pilot-test an effective, theoretically driven employment program (increased individual income and independence [iFOUR]), for HIV-positive adults, and adapt it to the needs of black and Latinx YMSM, YTW, and GNC youth aged 16 to 24 years who are vulnerable to HIV exposure.

OBJECTIVE

This paper aimed to describe the protocol for the exploratory phase of W2P. The purpose of this phase was to determine the essential components needed for a structural-level employment intervention aimed at increasing job-seeking self-efficacy and career readiness among black and Latinx YMSM, YTW, and GNC youth aged 16 to 24 years.

METHODS

The exploratory phase of the W2P study consisted of in-depth interviews and focus groups with members of the target community as well as brief interviews with lesbian, gay, bisexual, transgender, and queer (LGBTQ)-inclusive employers. The study team will conduct in-depth interviews with up to 12 YMSM and 12 YTW and GNC youth, up to 10 focus groups with a maximum of 40 YMSM and 40 YTW and GNC youth, and up to 40 brief interviews with LGBTQ-inclusive employers. Participants will be recruited through a community-based recruiter, passive recruitment in community spaces and on social media, and active recruitment by research staff in community spaces serving LGBTQ youth.

RESULTS

In-depth interviews were conducted with 21 participants, and 7 focus groups were conducted with 46 participants in total. In addition, 19 brief interviews with LGBTQ-inclusive employers were conducted. The analysis of the data is underway.

CONCLUSIONS

Preliminary findings from the formative phase of the study will be used to inform the tailoring and refinement of the iFOUR adult-based intervention into the youth-focused W2P intervention curriculum. Perspectives from YMSM, YTW, GNC youth, and LGBTQ-inclusive employers offer a multidimensional view of the barriers and facilitators to adolescent and young adult LGBTQ employment. This information is critical to the development of a culturally appropriate and relevant youth-focused intervention.

TRIAL REGISTRATION

ClinicalTrials.gov NCT03313310; https://clinicaltrials.gov/ct2/show/NCT03313310.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/16384.

A Systematic Review and Meta-Analysis of Combination Behavioral Interventions Co-Targeting Psychosocial Syndemics and HIV-Related Health Behaviors for Sexual Minority Men

In the U.S., sexual minority men (SMM) are disproportionately affected by HIV. Interventions are needed to increase HIV prevention and treatment behaviors, especially among syndemically exposed SMM. In recent years, researchers have created and tested combination behavioral interventions co-targeting syndemics and HIV-related health behaviors. We evaluated that literature via systematic review and meta-analysis, identifying 44 trials targeting mental health symptoms, alcohol use, and drug use, as well as sexual risk behavior, antiretroviral adherence, and healthcare engagement. For the randomized controlled trials, we computed between-group, pre-post effect sizes and tested them via random-effects models. Results supported the efficacy of combined interventions with significant, small, positive effects for improving mental health and reducing substance use (d = .20, CIs: 0.12, .29), and reducing sexual risk behavior and improving antiretroviral adherence (d = .16, CIs: .03, .30). Stratification analyses indicate that longer (9+ sessions) and individual (vs. group) interventions resulted in stronger effects on syndemic but not health behavior outcomes. Intervention developers should attend to intervention intensity and format. More evidence is needed about the importance of additional factors, such as novel intervention targets and cultural tailoring, as well as broadening the focus to multi-level interventions to address both interpersonal and structural mechanisms of change.

Structures of Sexuality: Sexual Stigma, Disclosure, and HIV Risk with Primary Female Partners Among Behaviorally Bisexual Black Men

HIV continues to disproportionately impact bisexual Black men, as well as their female partners, in the U.S. There is a need to better understand how stigma and disclosure affect sexual risk for men and their female partners. This article describes the relationship between sexual stigma and HIV risk with primary female partners among a sample of 121 behaviorally bisexual Black men of mixed HIV status in the San Francisco Bay Area. Multivariate analyses tested to see if each of three stigma measures (bisexual stigma, internalized homophobia, difficulty with bisexual identity) would have any effect on participants' condom use. Quantitative analyses found that sexual stigma increased men's sexual risk through inhibiting disclosure of their sexual activity with men to their female partners. Men who reported higher levels of bisexual stigma and internalized homophobia reported that it was harder to disclose having sex with men to their primary female partner, which was significantly related to lower levels of condom use. Stigma reduction HIV prevention interventions are needed that address bisexual stigma experienced by Black men. HIV prevention interventions, including stigma reduction programs, must target both men and women to effectively reduce bisexual stigma and address the structural and relationship contexts of HIV.

Effectiveness of a Viral Load Suppression Intervention for Highly Vulnerable People Living with HIV

We examine the effect of the Undetectables Intervention (UI) on viral loads among socially vulnerable HIV-positive clients. The UI utilized a toolkit that included financial incentives, graphic novels, and community-based case management services. A pre-post repeated measures analysis (n = 502) through 4 years examined longitudinal effects of the intervention. Logistic models regressed social determinants on viral loads. Finally, in-depth qualitative interviews (n = 30) examined how UI shaped adherence. The proportion of virally suppressed time-points increased 15% (from 67 to 82% pre to post-enrollment, p < 0.0001). The proportion of the sample virally suppressed at all time-points increased by 23% (from 39 to 62% pre to post-enrollment, p < 0.0001). African Americans and the homeless were the most likely to be unsuppressed at baseline, but, along with substance users, benefitted the most from UI. The intervention shaped adherence through two pathways, by: (1) establishing worth around adherence, and (2) increasing motivation to become suppressed, and maintain adherence.

Stigma, gay men and biomedical prevention: the challenges and opportunities of a rapidly changing HIV prevention landscape

Improvements in biomedical technologies, combined with changing social attitudes to sexual minorities, provide new opportunities for HIV prevention among gay and other men who have sex with men (GMSM). The potential of these new biomedical technologies (biotechnologies) to reduce HIV transmission and the impact of HIV among GMSM will depend, in part, on the degree to which they challenge prejudicial attitudes, practices and stigma directed against gay men and people living with HIV (PLHIV). At the structural level, stigma regarding gay men and HIV can influence the scale-up of new biotechnologies and negatively affect GMSM's access to and use of these technologies. At the personal level, stigma can affect individual gay men's sense of value and confidence as they negotiate serodiscordant relationships or access services. This paper argues that maximising the benefits of new biomedical technologies depends on reducing stigma directed at sexual minorities and people living with HIV and promoting positive social changes towards and within GMSM communities. HIV research, policy and programs will need to invest in: (1) responding to structural and institutional stigma; (2) health promotion and health services that recognise and work to address the impact of stigma on GMSM's incorporation of new HIV prevention biotechnologies; (3) enhanced mobilisation and participation of GMSM and PLHIV in new approaches to HIV prevention; and (4) expanded approaches to research and evaluation in stigma reduction and its relationship with HIV prevention. The HIV response must become bolder in resourcing, designing and evaluating programs that interact with and influence stigma at multiple levels, including structural-level stigma.

The Longitudinal Association between Perceived Powerlessness and Sexual Risk Behaviors among Urban Youth: Mediating and Moderating Effects

A distal psychosocial factor, perceived powerlessness, has been found to predict various sexual risk behaviors among youth, yet no studies have assessed mediators or moderators in this relationship. Using a demographically diverse, longitudinal sample of urban youth (N = 257), this study assessed whether the need for sexual validation mediates the relationship between perceived powerlessness and sexual risk behaviors and to assess whether this mediated pathway is moderated by socioeconomic status and gender. The mean age of the participants was 21 years old (range: 15-24) and the majority of the sample identified as Black (65%) and female (62%). The results of structural equation modeling showed that the need for sexual validation mediated perceived powerlessness and condomless sex at last sex among Black youth. The need for sexual validation mediated perceived powerlessness and concurrent sexual partnerships among White youth and depended on levels of socioeconomic status. Sexual risk behavior interventions should provide youth with increased opportunities that encourage feelings of validation from other personal achievements in addition to sex while simultaneously addressing the structural conditions that drive young people to feel powerless.

Applying core theory and spatial analysis to identify hepatitis C virus infection "core areas" in British Columbia, Canada

"Core areas" of transmission for bacterial sexually transmitted infections have been identified. However, it is unclear whether core areas apply to viral infections, such as hepatitis C virus (HCV). We used geographic mapping and spatial analysis to identify distinct core areas of HCV infection in British Columbia (BC) using the BC Hepatitis Testers Cohort (BC-HTC), 1990-2013. The BC-HTC includes all BC residents tested for HCV (~1.5 million; 1990-2013). Core HCV infection areas were identified spatially and temporally for five time periods (1990-1993, 1994-1998, 1999-2003, 2004-2008 and 2009-2013) through thematic mapping, Kernel Density Estimation, Hotspot analysis and cluster analysis at the Census dissemination area level in ArcGIS and SatScan. HCV infection core areas were consistently identified. HCV core areas expanded from the downtown of major cities in different regions of BC (Metro Vancouver, Vancouver Island, and Northern BC; 1990-1998), to smaller cities in Metro Vancouver and Interior BC (2000 onwards). Statistically significant clusters, or hotspots, were also observed for downtown Vancouver, Northern BC (Prince George) and Vancouver Island from 1990 to 2008 with expansion to other urban areas in Metro Vancouver from 1990-2013. Statistically significant clusters persisted after adjustment for injection drug use, number of HCV tests, age, sex, material and social deprivation. Persistence of areas with high HCV diagnoses rates in Vancouver and Prince George supports the theory of core areas of HCV transmission. Identification of core areas can inform prevention, care and treatment programme interventions and evaluate their impact over time.

Reframing masculinity: structural vulnerability and HIV among black men who have sex with men and women

This paper calls for a critical reframing of masculinity as an intersectional construct in the HIV epidemic and in public health. In-depth qualitative interviews were conducted with a sample of 56 Black men who have sex with men and women in the San Francisco Bay Area. Men described their sexual identities and practices via complex narratives of masculinity that drew on subordinated and resourceful adaptations to the structural effects of racism, economic marginalisation and homophobia. By focusing on men whose experience of masculinity operates outside fixed identity categories, the paper draws attention to the intersectionality that is, by necessity, constitutive of men's lived experiences. Findings suggest the value of an integrative framework for understanding Black masculinities as processes and practices simultaneously informed by structural inequalities (racism, economic marginalisation and/or homophobia, in particular) and cultural meanings of gender. By utilising an intersectional approach, public health and sociology can better understand the concurrent resilience and vulnerability of masculinities, while building an interdisciplinary understanding of the symbolic role of Black masculinities in the USA, as well as a means by which to promote health and well-being in and through these gendered contexts.

Trends in Geographic Rates of HIV Diagnoses Among Black Females in the United States, 2010-2015

BACKGROUND

HIV diagnoses among females in the United States declined 22% from 2010 to 2015, including a 27% decline in diagnoses among black females. Despite this progress, disparities persist. Black females accounted for 60% of new HIV diagnoses among females in 2015. Geographic disparities also exist. This article describes geographic differences in HIV diagnoses among black females in the United States, from 2010 to 2015.

MATERIALS AND METHODS

We examined HIV surveillance data from 2010 to 2015 to determine in which geographic areas decreases or increases in HIV diagnoses occurred. We used data from the National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention's (NCHHSTP) AtlasPlus to calculate percent changes in HIV diagnosis rates by geographic region for black females ≥13 years of age.

RESULTS

The number of new HIV diagnoses declined 27% among black females from 2010 to 2015. The highest rates of HIV diagnosis per 100,000 population of black females, from 2010 to 2015, were in the Northeast and the South. In 2015, five of the eight states reporting the highest rates of HIV diagnosis (i.e., the highest quartile) were in the South.

CONCLUSIONS

HIV diagnosis rates decreased nationally among black females, but the decreases were not uniform within regions or across the United States. Some states experienced increases, and black females in the South and Northeast remain disproportionately affected. Additional research is needed to ascertain factors associated with the increases to continue progress toward reducing HIV-related disparities among females in the United States.

The Threat and Response to Infectious Diseases (Revised)

The threat from microorganisms is complex, and the approaches for reducing the challenges the world is facing are also multifaceted, but a combination approach including several simple steps can make a difference and reduce morbidity and mortality and the economic cost of fighting infectious diseases. This paper discusses the continually evolving infectious disease landscape, contributing factors in the rise of the threat, reasons for optimism, and the policies, technologies, actions, and institutions that might be harnessed to further reduce the dangers introduced by pathogens. It builds upon and updates the work of other authors that have recognized the dangers of emerging and re-emerging pathogens and have explored and documented potential solutions.

Prevalence and Associations of Illicit Drug and Polydrug Use in People Living with HIV in Vienna

We aimed to determine the prevalence of drug and polydrug use in people living with HIV in Austria for the first time for which a two center cross-sectional study was performed. Participants were recruited from consecutive patients during their regularly scheduled visits. In total 438 participants were included in the analysis. For this study we used paper-pencil and online-based questionnaires. The prevalence of illicit drug use was 60.5%; with cannabis use at 31.5%, nitrates at 31.5%, sildenafil/tadalafil at 24% and cocaine at 14%, being the most used substances. Use of more than one substance (polydrug) in drug users was 69.4% or 42.0% in the total study population. Younger age, male gender, and living in an urban area were associated with drug use. Moreover, drug use during clubbing and sex, HIV therapy non-adherence and younger age were associated with polydrug use. Drug users reported condomless sex in 42.4% and performing sexual acts they would not do sober in 44.1%. Results indicate a high prevalence of illicit drug use in PLWHIV in Austria. New research focusing on illicit drug use in PLWHIV should focus on the use of substances during sex and surrounding practices.

Black Mothers Living With HIV Picture the Social Determinants of Health

The purpose of our study was to explore the social determinants of health for Black mothers living with HIV in the southeastern region of the United States. In this exploratory study, we used qualitative methods of in-depth interviewing and photo elicitation at three time points to provide a comprehensive examination of the meaning that the constructs held for participants (n = 18). The social determinants of health, identified primarily as positive health determinants by the participants, included social support, religion, animal companions, and the physical environment. The social determinants of health identified as mixed determinants, having both positive and negative qualities, were transportation and housing. Each of these social determinants is presented with definitions and exemplars. Additionally, aspects of each determinant of health that may be meaningfully addressed through process and structural level interventions are explored.

Exploring transgender legal name change as a potential structural intervention for mitigating social determinants of health among transgender women of color

The purpose of this exploratory study was to examine the effects of legal name change on socioeconomic factors, general and transgender-related healthcare access and utilization, and transgender-related victimization in a sample of young transgender women (transwomen) of color. A cross-sectional group comparison approach was used to assess the potential effects of legal name change. A convenience sample of young transwomen enrolled in a no-cost legal name change clinic were recruited to complete a 30-minute interviewer-guided telephone survey including sociodemographic and socioeconomic factors, health and well-being, health care utilization, transgender transition-related health care, and transgender-related victimization. Sixty-five transgender women of color (37 = pre-name change group; 28 = post-name change group) completed the survey. Results indicated that the transwomen in the post-name change group were significantly older than the pre-name change group. In age-adjusted analyses, the post-name change group was significantly more likely to have a higher monthly income and stable housing than the pre-name change group. No significant differences were observed for general healthcare utilization; however, a significantly greater percentage of transwomen in the pre-name change group reported postponing medical care due to their gender identity. In addition, a significantly larger proportion of transwomen in the pre-name change group reported using non-prescribed hormones injected by friends and experiencing verbal harassment by family and friends compared to transwomen in the post-name change group. Findings suggest that legal name change may be an important structural intervention for low-income transwomen of color, providing increased socioeconomic stability and improved access to primary and transition-related health care.

HIV Prevention Among Transgender Populations: Knowledge Gaps and Evidence for Action

PURPOSE OF REVIEW

The purpose of this review is to summarize the available evidence-based HIV prevention interventions tailored for transgender people.

RECENT FINDINGS

A limited number of evidence-based HIV prevention interventions have been tested with transgender populations. Most existing interventions target behavior change among transgender women, with only one HIV prevention program evaluated for transgender men. Studies addressing biomedical interventions for transgender women are ongoing. Few interventions address social and structural barriers to HIV prevention, such as stigma, discrimination, and poverty. Evidence-based multi-level interventions that address the structural, biomedical, and behavioral risks for HIV among transgender populations, including transgender men, are needed to address disparities in HIV prevalence. Future research should address not only pre-exposure prophylaxis uptake and condom use but also structural barriers that limit access to these prevention strategies.