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Objectives. To examine linear and nonlinear associations between psychosocial syndemic factors and HIV risk and engagement in HIV prevention care among sexual and gender minority (SGM) youths. Methods. Between February and October 2022, we recruited 17 578 SGM youths aged 13 to 18 years in the United States for an online survey. We examined the relationship of syndemics (i.e., binge drinking, drug use, sexual victimization, and anti–lesbian, gay, bisexual, and transgender discrimination) with sexual behaviors (i.e., sexual initiation, condomless anal or vaginal sex, and number of sexual partners) and HIV prevention care (i.e., HIV testing, preexposure prophylaxis awareness and utilization) using regression. Results. Psychosocial syndemic burden (number of syndemic factors reported) was linearly and cubically associated with engagement in sexual behaviors. Psychosocial syndemic burden was linearly associated with higher HIV testing and preexposure prophylaxis awareness and cubically associated with higher preexposure prophylaxis utilization. Conclusions. Our findings are evidence of synergism across psychosocial syndemic factors regarding HIV risk and engagement in HIV prevention care among SGM youths in the United States. Public Health Implications. Multicomponent interventions may help reduce HIV risk and promote access to HIV prevention services among SGM individuals aged 13 to 18 years. (Am J Public Health. 2024;114(9):892–902. https://doi.org/10.2105/AJPH.2024.307753) [ABSTRACT FROM AUTHOR]

Studies conducted early in the COVID-19 pandemic - before vaccines were widely available - indicated that drug use may have declined among sexual minority men (SMM). This study evaluated drug use trends in the second year of the pandemic. Cross-sectional responses from cisgender SMM living in the US and recruited online (n = 15,897) were grouped for analyses: Time 1: 3/1/2021-5/30/2021; Time 2: 6/1/2021-8/31/2021; Time 3: 9/1/2021-11/30/2021; and Time 4: 12/1 2021-2/28/2022. Results of multivariable models indicated that illicit drug use (excluding cannabis) increased at Times 2 (OR = 1.249, p <.001), 3 (OR = 1.668, p <.001), and 4 (OR = 1.674, p <.001) compared to Time 1. In contrast, cannabis use was relatively stable over time. Rates did not differ significantly among Times 1, 2, and 4. While rates of COVID-19 vaccination increased over time, illicit drug use was negatively associated with the odds of vaccination (OR = 0.361, p <.001). These findings highlight the need for ongoing attention to the risks drug use poses among SMM. Illicit drug use - a long-standing health disparity among SMM - increased significantly across the second year of the pandemic. Because they are less likely to be vaccinated, SMM who use illicit drugs may be at greater risk of COVID-19 infection or complications. [ABSTRACT FROM AUTHOR]

Background: Syndemic models have been used in previous studies exploring HIV-related outcomes; however, these models do not fully consider intersecting psychosocial (e.g., substance use, depressive symptoms) and structural factors (unstable housing, concentrated housing vacancy) that influence the lived experiences of women. Therefore, there is a need to explore the syndemic effects of psychosocial and structural factors on HIV risk behaviors to better explain the multilevel factors shaping HIV disparities among black women. Methods: This analysis uses baseline data (May 2009–August 2010) from non-Hispanic black women enrolled in the HIV Prevention Trials Network 064 Women's Seroincidence Study (HPTN 064) and the American Community Survey 5-year estimates from 2007 to 2011. Three parameterizations of syndemic factors were applied in this analysis a cumulative syndemic index, three syndemic groups reflecting the level of influence (psychosocial syndemic group, participant-level structural syndemic group, and a neighborhood-level structural syndemic group), and syndemic factor groups. Clustered mixed effects log-binomial analyses measured the relationship of each syndemic parameterization on HIV risk behaviors in 1,347 black women enrolled in HPTN 064. Results: A higher syndemic score was significantly associated with increased prevalence of unknown HIV status of the last male sex partner (adjusted prevalence ratio (aPR) = 1.07, 95% confidence interval or CI 1.04–1.10), involvement in exchange sex (aPR = 1.17, 95% CI: 1.14–1.20), and multiple sex partners (aPR = 1.07, 95% CI: 1.06–1.09) in the last 6 months. A dose–response relationship was observed between the number of syndemic groups and HIV risk behaviors, therefore, being in multiple syndemic groups was significantly associated with increased prevalence of reporting HIV risk behaviors compared with being in one syndemic group. In addition, being in all three syndemic groups was associated with increased prevalence of unknown HIV status of the last male sex partner (aPR = 1.67, 95% CI: 1.43–1.95) and multiple sex partners (aPR = 1.53, 95% CI: 1.36–1.72). Conclusions: Findings highlight syndemic factors influence the lived experiences of black women. [ABSTRACT FROM AUTHOR]

Substance abuse (SA), depression, and type 2 diabetes (DM2) often co-occur among people living with HIV (PLHIV). Guided by a syndemic framework, this cross-sectional retrospective study examined the cumulative and interaction effects of SA, depression, and DM2 on retention in HIV care (RIC) among 621 PLHIV receiving medical care in central Pennsylvania. We performed logistic regression analysis to test the associations between SA, depression, and DM2 and RIC. To test the "syndemic" model, we assessed additive and multiplicative interactions. In an unadjusted model, a dose-response pattern between the syndemic index (total number of health conditions) and RIC was detected (OR for 1 syndemic factor vs. none: 1.01, 95% CI: 0.69–1.47; 2 syndemic factors: 1.59, 0.89–2.84; 3 syndemic factors: 1.62, 0.44–5.94), but no group reached statistical significance. Interactions on both additive and multiplicative scales were not significant, demonstrating no syndemic effect of SA, depression, and DM2 on RIC among our study sample. Our findings highlight that comorbid conditions may, in some populations, facilitate RIC rather than act as barriers, which may be due to higher levels of engagement with medical care. [ABSTRACT FROM AUTHOR]

We sought to characterize overdose and non-overdose mortality among PLWH amidst the illicit drug toxicity crisis in British Columbia, Canada. A population-based analysis of PLWH (age ≥19) in British Columbia accessing healthcare from April 1996 to March 2017 was conducted using data from the Seek and Treat for Optimal Prevention of HIV/AIDS (STOP HIV/AIDS) cohort linkage. Underlying causes of deaths were stratified into overdose and non-overdose causes. We compared (bivariate analysis) health-related characteristics and prescription history between PLWH died of overdose and non-overdose causes between April 2009 and March 2017. Among 9,180 PLWH, we observed 962 deaths (142 [14.7%] overdoses; 820 [85.2%] other causes). Compared to those who died from other causes, those who died of overdose were significantly younger (median age [Q, Q3]: 46 years [42, 52] vs. 54 years [48, 63]); had an indication of chronic pain (35.9% vs. 27.1%) and hepatitis C virus (64.8% vs. 50.4%), but fewer experienced hospitalization in the year before death. PLWH who died were most likely to be prescribed with opioids (>50%) and least likely with opioid agonist therapy (<10%) in a year before death. These findings highlight the syndemic of substance use, HCV, and chronic pain, and how the crisis is unqiuely impacting females and younger people. [ABSTRACT FROM AUTHOR]

Synergistic associations between social inequities and HIV vulnerabilities – known as a syndemic – are understudied with youth in humanitarian settings. We explored refugee youths' HIV prevention needs in Bidi Bidi Refugee Settlement, Uganda. This multi-methods study involved 6 focus groups and 12 in-depth individual interviews (IDI) with refugee youth (n = 60) aged 16–24, and IDI with refugee elders (n = 8) and healthcare providers (n = 8). We then conducted cross-sectional surveys with refugee youth (16–24 years) (n = 115) to assess: poverty, recent sexual and gender-based violence (SGBV), and condom engagement motivation (CEM) (wanting to learn about condoms for HIV prevention). Multivariable logistic regression was used to estimate adjusted odds ratios for associations between poverty and SGBV with CEM. Qualitative narratives revealed poverty and trauma elevated substance use, and these converged to exacerbate SGBV. SGBV and transactional sex increased HIV vulnerabilities. Among survey participants, poverty and recent SGBV were associated with reduced odds of CEM. The interaction between poverty and recent SGBV was significant: the predicted probability of CEM among youth who experienced both poverty and SGBV was almost half than among youth who experienced poverty alone, SGBV alone, or neither. Findings signal the confluence of poverty, violence, and substance use elevate refugee youth HIV vulnerabilities. [ABSTRACT FROM AUTHOR]

Considering advances in HIV prevention and treatment, jurisdictional efforts to end the HIV/AIDS epidemic, and reduced stigma towards people living with HIV infection and mental health conditions, the authors systematically reviewed studies published between 2016 and 2021 and identified 45 studies that met the eligibility criteria. The review found that stigma towards mental health conditions still acts as a barrier to accessing HIV treatment, which impacts treatment outcomes. Additionally, social determinants of health, such as housing instability and poverty, appear to impact mental health and, therefore, HIV-related outcomes. The review also highlighted the mutually reinforcing effects of HIV, mental health, and substance use conditions, providing valuable insights into the syndemic effects of these co-occurring conditions. Overall, the review highlights the need to address stigma and social determinants of health in HIV prevention and treatment efforts and to integrate mental health services into HIV care to improve outcomes for people living with both HIV and mental health conditions. [ABSTRACT FROM AUTHOR]

Mental health and substance use epidemics interact to create psychosocial syndemics, accelerating poor health outcomes. Using latent class and latent transition analyses, we identified psychosocial syndemic phenotypes and their longitudinal transition pathways among sexual minority men (SMM) in the Multicenter AIDS Cohort Study (MACS, n = 3,384, mean age 44, 29% non-Hispanic Black, 51% with HIV). Self-reported depressive symptoms and substance use indices (i.e., smoking, hazardous drinking, marijuana, stimulant, and popper use) at the index visit, 3-year and 6-year follow-up were used to model psychosocial syndemics. Four latent classes were identified: "poly-behavioral" (19.4%), "smoking and depression" (21.7%), "illicit drug use" (13.8%), and "no conditions" (45.1%). Across all classes, over 80% of SMM remained in that same class over the follow-ups. SMM who experienced certain psychosocial clusters (e.g., illicit drug use) were less likely to transition to a less complex class. These people could benefit from targeted public health intervention and greater access to treatment resources. [ABSTRACT FROM AUTHOR]

Aims: Clique percolation, one of the joint community detection algorithms in network science, is a novel and efficient approach to detecting overlapping communities in real networks. The current study illustrated how clique percolation can help to identify overlapping communities within the complex networks underlying health disparities, particularly highlighting nodes with strong associations with more than one community. Design: A cross‐sectional study. Methods: The study used a dataset on Latinx populations (N = 1654; mean age = 43.3 years; 53.1% women) as an example to demonstrate the role of such overlapping nodes in the network of syndemic conditions and their common risk factors. Syndemic conditions in the network included HIV risk, substance abuse (smoking, heavy alcohol consumption and marijuana use) and poor mental health. Moreover, the risk factors encompassed individual (education and income) and sociostructural (adverse childhood experiences [ACEs] and access to services) factors. The network was estimated using the R‐package bootnet. Clique percolation was conducted on the estimated network using the R‐package CliquePercolation. Results: A total of three communities were detected, with HIV risk and poor mental health not being assigned to any community. In general, Community 1 was comprised of ACE categories, Community 2 included education, income and access to services and Community 3 included other syndemic conditions. Of note, two nodes were assigned to two communities: 'household dysfunction' to Communities 1 and 2 and 'smoking' to Communities 2 and 3. Conclusion: Household dysfunction might be the key connector, among other ACEs, to individual and structural barriers. Such barriers further exposed Latinx individuals to risky behaviours, especially smoking, which further linked to marijuana use and heavy alcohol consumption. Impact: Clique percolation facilitated our understanding of the complex systems of factors shaping health disparities. The overlapping nodes are promising intervention targets for reducing health disparities in this historically marginalized population. Patient or Public Contribution: No patient or public contribution. [ABSTRACT FROM AUTHOR]

The syndemic theoretical framework has been used in health disparities research to explain several co-occurring epidemics, particularly in populations facing disparate health conditions. A prominent example of this is seen in Singer's Substance Abuse, Violence and HIV/AIDS (SAVA) syndemic theory. However, even though numerous studies support some of the theoretical underpinnings of the SAVA syndemic, the empirical applications of the theory remain methodologically underdeveloped. The current review was guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Review (PRISMA-ScR), to present the state of the science of methodologies examining SAVA constructs using the syndemic framework. Seven bibliographic databases were searched with no language or date restrictions. Studies were synthesized by author, year of publication, study location, total sample size, study population, SAVA outcomes, analytic method of SAVA measurement, intervention type, level of influence, disease interaction and concentration, main findings of the study, and possible future areas of research. Our search yielded a total of 967 articles, and 123 were included in the review. Methodologic and statistical innovation is needed to elevate the impact of syndemic theory for elucidating the synergistic effects of determinants leading to health disparities. [ABSTRACT FROM AUTHOR]

Adolescents are at particular risk for multiple violence experiences and substance use behaviors. The extent to which the two clusters of experiences correlate with each other remains unclear. The purpose of this study is to assess the co-occurrence and mutual impact of violence experiences and substance use behaviors in adolescents using structural equation modeling (SEM) based on syndemic theory. This study utilized data collected by 2019 Youth Risk Behavior Survey from a nationally representative sample (N = 13,677). Bivariate associations and correlations between four forms of violence experiences (weapon threats, sexual violence, dating violence, and bullying) and three types of substance use behaviors (e-cigarette smoking, alcohol drinking, and marijuana use) were examined. Two SEM models were built to measure the correlation between the two clusters of variables. The results showed that 36.8% of adolescents experienced at least one form of violence in the past year (22.0% one form, 8.9% two forms, and 5.9% three or more forms) and 42.4% reported one or more types of substance use in the past month (16.3% one type, 14.0% two types, and 12.1% three types). Youths with multiple violence experiences were three to four times more likely to report substance use, and those using three types of substances were two to six times more likely to report violence victimization. All examined associations and correlations between violence experiences and substance use behaviors were statistically significant. In the final SEM model, the four violence variables indicated a syndemic factor and the three substance use variables indicated another syndemic factor. The two syndemic factors were positively correlated (β =.43, p <.05), with 19% of variance being explained by each other. Findings in this study highlight the needs for comprehensive prevention efforts to address the co-occurring and mutually reinforced situation between violence experiences and substance use behaviors in the youth population. Targeted intervention programs and mental health services are needed for adolescents with multiple violence experiences and concurrent substance use behaviors. [ABSTRACT FROM AUTHOR]

The syndemics theory seeks to understand the effect of multiple synergic problems in promoting poor health outcomes. To disentangle which and how syndemic conditions affect the quality of life (QoL) may be important to improve well-being of people living with HIV/AIDS (PLWHA). This study evaluates the association between syndemic conditions and QoL among PLWHA. We performed a secondary analysis using data obtained between 2014 and 2017 among PLWHA under care in Rio de Janeiro, Brazil. The outcomes were the six QoL domains (physical, psychological, level of independence, social relationships, environmental, and spirituality) measured through the World Health Organization Quality of Life in HIV infection scale, abbreviated version (WHOQOL-HIV-BREF). The independent variables were demographic and clinical characteristics, syndemic conditions (binge drinking, compulsive sexual behavior, polysubstance use, intimate partner violence, and depression), and syndemics (two or more syndemic conditions simultaneously). Bivariate analysis (t-test and ANOVA) and linear regressions were performed for each quality-of-life domain. The analytical sample comprised 1530 participants, mostly male at birth (64%) and with median age of 43 years. The syndemic conditions most frequently observed were binge drinking (56%), IPV (13%), and depression (9%). Both individual syndemic conditions and syndemics were associated with worse QoL. In the multivariate analysis, positive screening for depression was associated with worse QoL in all domains. Polysubstance users presented worse QoL at social and environmental domains. Intimate partner violence was associated with worse QoL at environment domain while binge drinking was associated with worse scores in the physical domain. The presence of syndemics increased the likelihood of worse scores in the psychological, social, and environment domains. Our study expands the understanding of QoL in PLWHA, as it considers a holistic/integral, multifactorial, and synergistic approach to the determinants of QoL. Seeking strategies that target syndemics may be important to improve patient-centered outcomes in health. Abbreviations: HIV/AIDS: human immunodeficiency virus/acquired immunodeficiency syndrome WHO: World Health Organization QoL: quality of life HRQoL: health-related quality of life PLWHA: people living with HIV/AIDS cART: combined antiretroviral therapy IPV: intimate partner violence INI/FIOCRUZ: Evandro Chagas National Institute of Infectious Diseases Oswaldo Cruz Foundation SRH: self-rated health VL: viral load CD4: CD4 cell count NIAAA: National Institute on Alcohol Abuse and Alcoholism CSB compulsive sexual behavior WHO-ASSIST: alcohol smoking and substance involvement screening test developed by the World Health Organization PHQ-2: Patient Health Questionnaire-2 [ABSTRACT FROM AUTHOR]

Background: The process of immigration and subsequent adaptation can expose Latinx immigrants to chronic and compounding challenges (i.e., acculturative stress), but little is known about how resilience factors and these stressors interact to influence syndemic conditions, intertwined epidemics that disproportionally affect historically marginalized communities. Objectives: The purpose of this study was to describe the influence of acculturative stress and resilience on the syndemic factor underlying substance abuse, intimate partner violence, HIV risk, and mental conditions. Methods: Baseline cross-sectional data from a community-engaged, longitudinal study of 391 adult (ages 18–44 years) Latinx immigrants in North Carolina were obtained using standardized measures available in English and Spanish. Structural equation modeling tested the syndemic model, and random forest variable importance identified the most influential types of acculturative stressors and resilience factors, including their interactions, on the syndemic factor. Results: Results indicated that a single syndemic factor explained variations in heavy drinking, drug use, intimate partner violence, depression, and anxiety and fit the data well. Age, being a woman, acculturative stress, acculturation to the United States, and emotional support were significantly related to the syndemic factor. The relationship between acculturative stress and the syndemic factor was buffered by ethnic pride, coping, enculturation, social support, and individual resilience. The most influential acculturative stressors were marital, family, and occupation/economic stress. Discussion: Findings from this study underscore the importance of considering the co-occurrence of behavioral and mental health conditions among Latinx immigrants. Health promotion programs for Latinx immigrants should address acculturative stress and bolster ethnic pride, social support, and coping as sources of resilience. [ABSTRACT FROM AUTHOR]

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Background: Adolescent gay/bisexual men exhibit the highest prevalence of undiagnosed HIV infections. Ascertaining antecedents of behaviorally acquired HIV infections among adolescent gay/bisexual men can be challenging; however, these challenges can be overcome through the utilization of secondary data, such as the Youth Risk Behavior Survey. Objective: Syndemics theory suggests that HIV infections are not a singular phenomenon; instead, many infections occur at the intersection of syndemic factors, such as substance use, violence, and mental health. Our objective is to describe and synthesize research methods of secondary data analyses that examine syndemic factors in relation to HIV risk behavior outcomes among subsamples of adolescent gay/bisexual men. Methods: Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, PubMed, Cumulative Index to Nursing and Allied Health Literature, and PsycInfo were systematically searched. Inclusion criteria were (a) peer-reviewed Youth Risk Behavior Survey secondary data analyses conducted in the United States after 1991, (b) subsamples with adolescent gay/bisexual men, (c) one or more syndemic factor(s), and (d) one or more HIV risk behavior outcome(s). We used the National Institutes of Health Quality Assessment Tools for quality appraisal. Results: Of 1,036 citations retrieved, nine studies met inclusion criteria. Results included using logistic regression analysis and data from 2015 to 2017 in six studies and underpinnings with minority stress theory in four studies. Eight studies omitted race/ethnicity in subsamples and six grouped lesbians with adolescent gay/bisexual men. Seven studies examined substance use, six examined violence, and five examined mental health. Condom use and number of partners were the most studied HIV risk behavior outcomes in four studies, whereas intercourse in the last 3 months was an outcome in only one study. Protective factors were not present. Conclusion: Limitations found the need to highlight better inclusion of race/ethnicity and sexual orientation. Adding contemporary survey items is also necessary, such as nonbinary sex and gender identity, access to HIV prevention (condoms, HIV testing, and preexposure prophylaxis), and experiences with stigma, to elucidate risk behaviors among populations disproportionately affected by HIV infections, including Blacks/African Americans and Hispanics/Latinos. [ABSTRACT FROM AUTHOR]

Background: 'Syndemic' refers to socially produced, intertwined, and co-occurring epidemics. Syndemic theory is increasingly used to understand the population-level relationships between sexual health (including HIV) and mental health (including problematic substance use) epidemics. Syndemic-informed clinical interventions are rare.Methods: We therefore asked 22 sexual health practitioners from six sexual health clinics in British Columbia, Canada to define the word 'syndemic' and then asked how the theory related to their clinical practice.Results: Responses to syndemic theory ranged widely, with some practitioners providing nuanced and clinically informed definitions, others expressing a vague familiarity with the term, and others still having no prior knowledge of it. Where practitioners acknowledged the relevance of syndemic theory to their practice, they articulated specific ways in which syndemics create moral distress, that is, feeling that the most ethical course of action is different from what they are mandated to do. While some practitioners routinely used open-ended questions to understand the social and economic contexts of patients' sexual health needs, they described an uneasiness at potentially having surfaced concerns that could not be addressed in the sexual health clinic. Many observed persistent social, mental health, and substance use-related needs among their patients, but were unable to find feasible solutions to these issues.Conclusions: We therefore propose that interventions are needed to support sexual health practitioners in addressing psychosocial health needs that extend beyond their scope of practice, thereby reducing 'syndemic moral distress'. [ABSTRACT FROM AUTHOR]

Pandemics do not exist in isolation and COVID-19 is no exception. We argue that existing health crises, notably substance use disorder (SUD), developed syndemic relationships with COVID-19 that produced compounding deleterious effects. Combining Merrill Singer’s theory of syndemics and assemblage theory, we analyze the combinatory impact of overdose and COVID-19 within a localized context. We focus on Sandusky, Ohio, where we combine police reports, in-depth interviews with area residents, and ethnographic data to compare conditions before and after the emergence of COVID-19. We find dramatic shifts in relevant local contexts due to COVID-19, inhibiting existing systems of law and public policy aimed at overdose prevention and SUD treatment. Further, our findings provide evidence of complications in the COVID-19 response originating from the overdose epidemic. [ABSTRACT FROM AUTHOR]

We explored associations between multisystemic resilience and anxious-depressed symptoms in Black families experiencing maternal syndemics (i.e., co-occurring epidemics of substance abuse, violence, HIV/AIDS), using a sequential explanatory study design. Hierarchical regression was used to analyze data from 171 Black youth (57% girls; Mage=12.13, SD = 2.90). Girls (β=-0.17, p = .02) with higher inter/intrapersonal skills (β = − 0.28, p = .004) and more open familial communication (β = − 0.40, p < .001) reported fewer anxious-depressed symptoms, F(12, 147) = 5.68; p < .001, Adj R2 = 26.1%. Qualitative results from a subsample of 10 Black youth-mother dyads explored inter/intrapersonal factors (i.e., emotion regulation strategies, goal setting, persistence and perseverance, problem-solving skills) and open communication factors (i.e., comfortable environment to talk, solving problems, processing feelings, showing affection, benefiting from open communication) that support Black youth resilience. Findings highlight key resilience factors that could be bolstered in future interventions to reduce anxious-depressed symptoms among Black youth exposed to maternal syndemics. [ABSTRACT FROM AUTHOR]

Despite some improvement in lowering HIV incidence, HIV-related challenges, such as intimate partner violence (IPV), remain unacceptably high among women in South Africa. For decades, researchers and activists have pointed to the complex and intertwined reality of the substance abuse, violence and AIDS (SAVA) syndemic that endangers women. However, more recent systematic review/meta-analysis evidence points to inconclusive association between IPV and alcohol use. Furthermore, much of the evidence is often non-population-based that focuses on the co-occurrence rather than synergistic SAVA interaction. In this study, using the latest data from the South Africa Demographic and Health Survey (SA-DHS), we identified geographic synergistic clustering of IPV associated with HIV and substance abuse in South Africa as a measure of population-level interactions among these factors. The SA-DHS is a nationally representative sample that includes wide-ranging data on health, social challenges and household geo-locations of 5,874 women who participated in the domestic violence module. First, geographical IPV, harmful alcohol use (as the substance abuse measure available in SA-DHS) and HIV clusters were identified using the Kulldorff spatial scan statistic in SaTScan. Second, synergistic interactions related to recent IPV (i.e. recent physical, sexual, emotional violence during the last 12 months) with harmful alcohol use and HIV challenge were measured using RERI [Relative excess risk due to interaction], AP [attributable proportion] and S [Synergy index]. In our results, we spatially identified geographical physical IPV syndemic interactions in parts of the Eastern Cape/Free State Provinces (RERI = 4.42 [95% CI: 2.34–6.51], AP = 0.56 [95% CI: 0.44–0.68], S = 2.77 [95% CI: 2.01–3.84], but not in other forms of IPV. Although IPV, based on decade old concept of SAVA syndemic, was less common/widespread than expected from the national scale population-based data, we identified population-level physical violence syndemic occurring in South Africa. Our study highlights the need to prioritize public health response targeting vulnerable populations residing in these high-risk areas of syndemic mechanisms linking these synergistic epidemics that women face in South Africa. [ABSTRACT FROM AUTHOR]

Syndemic theory hypothesises that observed clusters of diseases are the result of harmful social conditions. Critiques of syndemics present the theory as ambiguous and lacking empirical evidence. Syndemics are evidenced through qualitative assessments drawing on observations, epidemiology, and biomedical evidence to explain bio-bio and bio-social interactions. Quantitative syndemic studies commonly apply a summative approach, whereby the outcome is a result of the cumulative effect of the individual elements. More recently, quantitative studies apply analyses to assess mechanical interactions among conditions. This paper applies a synergy factor analysis to measure synergy – the enhancement of the effect of one element on the effect of the others. Data from the canonical quantitative syndemic analysis study was reanalysed to assess synergy among the elements of the SAVA syndemic (substance ab/use, violence, HIV/AIDS). Contrary to original study findings, which applied a summative approach, no synergy was measured. Synergistic interactions were confirmed among a subset of the study population; the effects of substance ab/use and violence on HIV were more than two times greater in White MSM than the predicted joint effect (SF = 2·32, 95%CI 1·02–5·11, p = 0·044), indicating synergy. Synergy factor analysis presents an accessible tool to measure syndemic interactions and facilitate timely global health responses. [ABSTRACT FROM AUTHOR]

Background. This case series describes an evolving relationship between the opioid crisis and climate change. As the climate continues to warm, patients with opioid use disorders will be at heightened risk for complications and even death. Little has been written on the specific intersection of heat-related illness and opioid use. Objectives. This paper highlights a particular vulnerability among people with opioid use disorder to encourage further research and inform care practices among community and health care providers. Discussion. The opioid crisis and climate change have the potential to interact synergistically to contribute to excess burden of death and disease. Socioeconomic marginalization places people with opioid use disorder at greater risk for death and injury due to inadequate access to air conditioning. Conclusion. Providers should consider co-occurrence of heatrelated illness in accidental overdoses. Harm-reduction initiatives could include education regarding the risks of use during heatwaves. [ABSTRACT FROM AUTHOR]

Objective: A syndemic of violence exposure, substance misuse, and mental health problems (i.e., depression, anxiety, posttraumatic stress disorder) is associated with increased unprotected anal sex and number of sexual partners in young men who have sex with men (YMSM). However, few studies have examined multiple forms of violence—including childhood abuse, intimate partner violence, and community violence—and identified which factors are significant predictors of HIV risk for YMSM when controlling for all other factors. Accordingly, this study examined the additive and independent influence of different forms of violence, substance misuse, and mental health problems associated with sexual risk behaviors in YMSM who used HIV prevention services. Method: A convenience sample of 168 (97 Black or multiethnic Black, 71 white) YMSM ages 18–34 completed computer-assisted personal interviews assessing syndemic factors and HIV risk behaviors. We conducted Spearman correlations and negative binomial regressions to describe syndemic relationships and identify the significant independent predictors of HIV risk. Results: A syndemic of violence exposure, substance use, and mental health problems was observed in the sample. Also, participants with depression, drug abuse in the clinical range, and polydrug use reported significantly higher frequencies of sexual risk behaviors. Violence exposure did not uniquely predict sexual risk. Conclusions: Depression, drug abuse, and polydrug use should be targets for HIV prevention among YMSM using HIV prevention services. [ABSTRACT FROM AUTHOR]

BackgroundStudies have found that gay, bisexual, and other men who have sex with men (GBM) have higher rates of mental health conditions and substance use than heterosexual men, but are limited by issues of representativeness.ObjectivesTo determine the prevalence and correlates of mental health disorders among GBM in Metro Vancouver, Canada.MethodsFrom 2012 to 2014, the Momentum Health Study recruited GBM (≥16 years) via respondent-driven sampling (RDS) to estimate population parameters. Computer-assisted self-interviews (CASI) collected demographic, psychosocial, and behavioral information, while nurse-administered structured interviews asked about mental health diagnoses and treatment. Multivariate logistic regression using manual backward selection was used to identify covariates for any lifetime doctor diagnosed: (1) alcohol/substance use disorder and (2) any other mental health disorder.ResultsOf 719 participants, 17.4% reported a substance use disorder and 35.2% reported any other mental health disorder; 24.0% of all GBM were currently receiving treatment. A lifetime substance use disorder diagnosis was negatively associated with being a student (AOR = 0.52, 95% CI [confidence interval]: 0.27-0.99) and an annual income ≥$30,000 CAD (AOR = 0.38, 95% CI: 0.21-0.67) and positively associated with HIV-positive serostatus (AOR = 2.54, 95% CI: 1.63-3.96), recent crystal methamphetamine use (AOR = 2.73, 95% CI: 1.69-4.40) and recent heroin use (AOR = 5.59, 95% CI: 2.39-13.12). Any other lifetime mental health disorder diagnosis was negatively associated with self-identifying as Latin American (AOR = 0.25, 95% CI: 0.08-0.81), being a refugee or visa holder (AOR = 0.18, 95% CI: 0.05-0.65), and living outside Vancouver (AOR = 0.52, 95% CI: 0.33-0.82), and positively associated with abnormal anxiety symptomology scores (AOR = 3.05, 95% CI: 2.06-4.51).ConclusionsMental health conditions and substance use, which have important implications for clinical and public health practice, were highly prevalent and co-occurring.

Depression and substance use are significant obstacles to effective HIV care. Using data derived from a randomized controlled trial of persons with HIV who are homeless or marginally housed, this study assesses the utility of antidepressant treatment among persons with HIV, depression, and active substance use. Participants were diagnosed with depressive disorders and randomly assigned to receive directly observed therapy with fluoxetine or a referral to community mental health treatment. Assessments, conducted at baseline and every 3 months over a 9-month period, included the Hamilton Rating Scale for Depression, the Beck Depression Inventory II, and self-report of alcohol, crack, cocaine, heroin, or methamphetamine use in the past 90 days. To investigate the effect of antidepressant treatment in the setting of active substance use, the authors fit mixed-effects linear regression models to estimate the effect of directly observed fluoxetine on depressive symptom severity after stratifying by any alcohol use or any illicit drug use. To investigate whether alcohol use or illicit drug use moderated the antidepressant treatment response, the authors examined the interaction terms. The effect of directly observed fluoxetine treatment on depression symptom severity was statistically significant irrespective of alcohol use status. When stratified by illicit drug use status, the effect of directly observed fluoxetine treatment on depression symptom severity was statistically significant only among persons who did not use illicit drugs. The interaction terms were not statistically significant. This study found a benefit of antidepressant treatment in persons with HIV, depression, and alcohol use. In addition, this study found no evidence that either alcohol use or illicit drug use moderates the antidepressant treatment response. Altogether, these findings support the use of antidepressant medication in this population. The public health impact of research in this area is significant given the known adverse effects of depression on HIV-related health outcomes. ClinicalTrials.gov Identifier: NCT00338767.

Purpose: The role of rehabilitation counseling in addressing major public health issues is an emerging area in the field. Despite higher rates of disease burden among currently or formerly incarcerated people, the syndemic effects of incarceration has received little attention. This article outlines how to think of incarceration from a syndemic perspective. Method: The authors of this article draw upon syndemic theory to 1) describe the social determinants of health that lead to a greater risk of incarceration of people with substance use disorders (SUD), mental illness (MI), and infectious diseases (ID), 2) describe the syndemic impact of incarceration leading to more significant levels of disability for these populations, and 3) discuss implications for rehabilitation counseling professionals. Results: This article highlights that incarceration may interact synergistically in various syndemics, having an exacerbated health and economic effects on individuals who are/were incarcerated, their families, and communities. Conclusions: By employing stigma reduction strategies, advocating for prevention and treatment services, and addressing social determinants of health, rehabilitation counseling professionals have a substantial role to play in mitigating the syndemic impact of incarceration on people with SUD, MI, and ID. [ABSTRACT FROM AUTHOR]

Introduction: The rate of infectious syphilis continues to increase among females in British Columbia (BC) and Canada, raising concerns of increased incidence of congenital syphilis. We characterized syphilis cases among females in BC to identify opportunities to prevent syphilis and optimize its care.Methods: All cases of infectious syphilis diagnosed in BC between March 13, 2018 and December 31, 2020 and reported as female gender were reviewed. Demographics, risk factors and concurrent conditions were collected from a provincial surveillance system. Subgroup analyses comparing cases with and without housing instability, substance use, mental illness and a recent sexually transmitted infection (STI) were conducted to understand differences between these subgroups. Statistical associations were calculated using chi-square or t-tests.Results: There were 226 reported cases of female infectious syphilis in BC during this period: 38 (16.8%) in 2018; 74 (32.7%) in 2019; and 114 (50.4%) in 2020. Mean age was 32 years (range 15-75 years). Of those who reported concurrent conditions, most cases had experiences with housing instability (71.1%), substance use (68.2%) and mental illness (83.9%), while 42.9% had a recent STI. Cases who reported housing instability or substance use were significantly more likely to have experiences with a recent STI, street involvement, transactional sex, mental illness and income assistance (all p<0.01).Conclusion: Our findings highlight the importance of fostering an enabling environment for syphilis care. Concurrent services to support individuals with syphilis as well as housing instability, substance use and mental illness, may help prevent syphilis and improve wellbeing. [ABSTRACT FROM AUTHOR]

Latino immigrants are disproportionately impacted by substance use, HIV/AIDS, domestic violence, and mental health (SAVAME). The burden of these syndemic conditions is influenced by limited access to health and social services to prevent and treat these conditions. The syndemic nature of these factors necessitates an integrated, coordinated approach to address them simultaneously. We analyzed characteristics of Latino-serving organizations in Philadelphia, PA, that provide SAVAME-related health and/or social services, and their interorganizational collaborations to meet the needs of Philadelphia's Latino communities. We surveyed Latino-serving organizations (N=43) identified through existing resource directories and key informants. Network analyses identified patterns and density of collaborative ties (i.e., referrals, administrative, or planning/advocacy) across organizations and characterized these ties by type of service. Density (expressed as percent of all possible ties) revealed a higher referral rate (40%) than administrative (29%) or planning (26%) coordination. Network sociograms display clusters of providers by geography. Examination of bonding (within-group) ties revealed comparable perceptions of high value among both South/Center Philadelphia (57%) and in North Philadelphia providers (56%), but bridging (between-group) ties suggest lower levels of high-value perceptions (24%). No evident clustering by type of service based on syndemic factor was observed. Density of bridging across types of providers was highest for referrals (38%) followed by planning (23%) and administrative coordination (20%). Interventions to promote collaboration between providers should focus on facilitating administrative and planning collaborations that leverage existing capacity of the network. Given the syndemic nature of these conditions, greater collaboration between providers of complementing SAVAME services is imperative. [ABSTRACT FROM AUTHOR]

The contribution of gender identity, neighborhood characteristics, contextual norms, and socio-political factors to the biopsychosocial health of non-heteronormative persons in low- and middle-income countries (LMICs) is understudied. Using syndemic theory, we conducted two focus groups (FGs) of 16 non-heteronormative individuals in Haiti's urban Cité Soleil neighborhood. Eight individuals participated in each FG. ATLAS.ti facilitated thematic content analysis of transcripts. Results indicate that disparity conditions in Cité Soleil (extreme poverty, gang violence, easy access of weapons by criminals, lack of law enforcement, and a 3.6% Human Immunodeficiency Virus [HIV] rate) facilitate a syndemic of substance abuse and non-partner sexual violence. These interact adversely with gender expression, transphobia, transmisogyny, cissexism, lack of confidential HIV testing, and hostilities from religious groups to increase participants' risks of coercive non-partner sexual violence by groups of inebriated men. Injuries from sexual violence, limited access to confidential HIV testing, and inaccurate HIV knowledge heighten HIV risk and anxiety. Haiti's negative human rights record, 2.2% HIV prevalence, and cultural norms that devalue women are syndemic pathways that perpetuate or worsen disparity conditions and health risks, particularly for trans women. It is a moral, ethical, public health, and social justice mandate to address HIV prevention and mental health promotion for Haitian trans women. [ABSTRACT FROM AUTHOR]

Psychosocial syndemic conditions have received more attention regarding their deleterious effects on HIV acquisition risk than for their potential impact on HIV treatment and viral suppression. To examine syndemic conditions' impact on the HIV care continuum, we analyzed data collected from people living with HIV (N = 14,261) receiving care through The Centers for AIDS Research Network of Integrated Clinical Systems at seven sites from 2007 to 2017 who provided patient-reported outcomes ∼4–6 months apart. Syndemic condition count (depression, anxiety, substance use, and hazardous drinking), sexual risk group, and time in care were modeled to predict antiretroviral therapy (ART) adherence and viral suppression (HIV RNA <400 copies/mL) using multilevel logistic regression. Comparing patients with each other, odds of ART adherence were 61.6% lower per between-patient syndemic condition [adjusted odds ratio (AOR) = 0.384; 95% confidence interval (CI), 0.362–0.408]; comparing patients with themselves, odds of ART adherence were 36.4% lower per within-patient syndemic condition (AOR = 0.636 95% CI, 0.606–0.667). Odds of viral suppression were 29.3% lower per between-patient syndemic condition (AOR = 0.707; 95% CI, 0.644–0.778) and 27.7% lower per within-patient syndemic condition (AOR = 0.723; 95% CI, 0.671–0.780). Controlling for the effects of adherence (AOR = 5.522; 95% CI, 4.67–6.53), each additional clinic visit was associated with 1.296 times higher odds of viral suppression (AOR = 1.296; 95% CI, 1.22–1.38), but syndemic conditions were not significant. Deploying effective interventions within clinics to identify and treat syndemic conditions and bolster ART adherence and continued engagement in care can help control the HIV epidemic, even within academic medical settings in the era of increasingly potent ART. [ABSTRACT FROM AUTHOR]

Background: Food insecurity and intimate partner violence (IPV) are associated with suboptimal HIV prevention and treatment outcomes, yet limited research has explored how food insecurity and IPV intersect to influence HIV-related behaviors. To fill this gap, we conducted a qualitative study with women living with or at risk for HIV in the United States. Methods: We conducted 24 in-depth interviews with women enrolled in the San Francisco and Atlanta sites of the Women's Interagency HIV study (WIHS). Participants were purposively sampled so half were living with HIV and all reported food insecurity and IPV in the past year. Semi-structured interviews explored experiences with food insecurity and IPV, how these experiences might be related and influence HIV risk and treatment behaviors. Analysis was guided by an inductive-deductive approach. Results: A predominant theme centered on how food insecurity and IPV co-occur with poor mental health and substance use to influence HIV-related behaviors. Women described how intersecting experiences of food insecurity and IPV negatively affected their mental health, with many indicating using substances to "feel no pain". Substance use, in turn, was described to perpetuate food insecurity, IPV, and poor mental health in a vicious cycle, ultimately facilitating HIV risk behaviors and preventing HIV treatment adherence. Conclusions: Food insecurity, IPV, poor mental health and substance use intersect and negatively influence HIV prevention and treatment behaviors. Findings offer preliminary evidence of a syndemic that goes beyond the more widely studied "SAVA" (substance use, AIDS, and violence) syndemic, drawing attention to additional constructs of mental health and food insecurity. Quantitative research must further characterize the extent and size of this syndemic. Policies that address the social and structural drivers of this syndemic, including multi-level and trauma-informed approaches, should be implemented and evaluated to assess their impact on this syndemic and its negative health effects. [ABSTRACT FROM AUTHOR]

The syndemic conditions of low education, childhood maltreatment, depression, HIV, alcohol and cocaine use, and obesity have been established as independent risk factors for cardiovascular risk, but research examining the association between syndemic conditions and cardiovascular risk in high-risk populations is lacking. A total of N = 503 participants underwent an ultrasound of the carotid artery to assess for atherosclerotic plaque. Participants, HIV-infected (n = 202) and HIV-uninfected (n = 301) with and without a history of cocaine use, were a mean age of 36.13 years (SD = 9.51); 50% were male, and 62% were African-American. Each syndemic condition was associated with 8% greater odds of atherosclerotic plaque (OR = 1.08), 9% greater odds of systolic blood pressure (OR = 1.09), and 10% greater odds of diastolic blood pressure (OR = 1.10). Multilevel research, interventions, and public policy initiatives are needed to activate stakeholders at each level to maximize their impact at a community level among populations with high rates of syndemic conditions. [ABSTRACT FROM AUTHOR]

Background: Sexual minority men (SMM) and transgender women (TW) are more likely to smoke cigarettes than heterosexual and cisgender peers, which may exacerbate existing disparities in mental and psychosocial health and substance use.Purpose: As few existing studies have examined the confluence of these factors, we sought to examine tobacco use in a diverse sample of SMM and TW and describe its relationship with other substance use and health.Methods: Data were drawn from a study of syndemic conditions among SMM and TW, which included measures assessing tobacco use, substance use, and mental, psychosocial, and general health.Results: A majority of the racially/ethnically and socioeconomically diverse sample (n = 665) reported ever smoking a cigarette, and more than half of them were current smokers. Current smoking was associated with more frequent recent substance use and poorer mental, psychosocial, and general health. In multivariable analyses, current smoking was predicted by more frequent substance use and more severe anxiety, when adjusting for demographic, substance use, and health factors.Conclusions: A syndemic approach to health conditions such as substance use, mental health, and psychosocial burden dictates a framework of interrelation and mutual exacerbation. In doing so, we found that current cigarette use was associated with more frequent alcohol and marijuana use and more severe anxiety, suggesting a confluence of cigarette smoking, other substance use, and mental health burden. We recommend a holistic approach to treating tobacco use in sexual and gender minority populations that addresses both substance use and the myriad psychosocial burdens that sexual and gender minority communities experience. [ABSTRACT FROM AUTHOR]

Adolescent males who have sex with males (AMSM) are at increased risk of HIV/STI acquisition compared to other adolescents, making sexual risk behaviors in this population a priority public health focus. AMSM experience more victimization (including sexual/partner violence), depression, and substance abuse than their heterosexual counterparts; these may form a syndemic associated with risky sexual behavior. We pooled data from the 2015 and 2017 Youth Risk Behavior Survey, restricted to male students who reported a previous male sexual partner (n = 448). Latent profile analysis was used to identify syndemic profiles, with log-binomial and cumulative complementary log-log models used to test associations with substance use at last intercourse, condomless sex at last intercourse, and the number of sexual partners. Nearly all measures of victimization, depression, and substance use had bivariate associations with greater substance use during sex and more sexual partners. We identified three profiles of AMSM: The profile (n = 55) with the greatest risk factors (evident of a syndemic) had substantially higher prevalence of substance use during sex (aPR = 4.74, 95% CI 3.02, 7.43) and more sexual partners (aPR = 2.45, 95% CI 1.39, 4.31) than the profile with the lowest risk factors (n = 326) after adjusting for confounders. This profile was not associated with condomless sex. We identified a syndemic characterized by victimization, depression, and substance use associated with risky sexual behaviors in a nationally representative sample of AMSM. Comprehensive sexual risk reduction interventions incorporating mental health and substance use are critically important in this population. [ABSTRACT FROM AUTHOR]

This study employs a strengths-based approach to explore associations of ethnic identity and community cohesion with substance use among Black women experiencing adversity. Black women (N = 107; Mage = 34.2, SD = 7.7) completed interviews about their sociodemographics, HIV status, intimate partner violence exposure, ethnic identity, community connectedness, and substance use. Hierarchical linear regression analysis was used to examine associations of ethnic identity and community cohesion with substance use, accounting for age and socioeconomic status. The overall model was significant, with greater ethnic identity (β = −.25, p <.01) and more community cohesion (β = −.29, p <.01) associated with lower substance use. Findings highlight the value of contextual factors in substance use prevention among Black women. [ABSTRACT FROM AUTHOR]

Objectives: Mothers in lower social locations are particularly vulnerable to the syndemic conditions of substance abuse, violence, and HIV/AIDS (SAVA), yet few studies have examined the impact of upstream socioeconomic inequities as salient determinants of syndemic conditions in their lives. The purpose of this study was to investigate the influence of Temporary Assistance for Needy Families (TANF) receipt, TANF sanctions, and economic hardship (EH) on SAVA syndemic conditions that included indicators of substance use, HIV risk‐taking behaviors, and intimate partner violence among mothers over time. Methods: Using data from the Fragile Families and Child Wellbeing Study (n = 4,898), we investigated the longitudinal measurement invariance of a proposed measure of syndemic conditions among mothers over five waves and performed path analysis to investigate the relationships between TANF use, TANF sanctions, and EH with syndemic conditions. Results: Analyses revealed the presence of SAVA syndemic conditions and EH predicted increased SAVA in subsequent waves. Relationships between reported race of the mother and the sanctioning of TANF benefits and increased SAVA were also noted. Conclusions: This study has implications regarding race, welfare policy and sanctioning practices, and the socioeconomic determinants of health that drive syndemic conditions among mothers in the United States. [ABSTRACT FROM AUTHOR]

Little is known about how interacting psychosocial problems may influence sexual behaviour among men having sex with men taking Pre-exposure prophylaxis (PrEP). This study assessed (1) the prevalence of depression, recreational drug-use and sexual risk behaviour; (2) changes in these psychosocial conditions over time; and (3) the interaction of drug use and depression with sexual risk behaviour. We analysed data of the Belgian Be-PrEP-ared cohort study (N = 200). We assessed depression using the PHQ-9, recreational drug use and receptive condomless anal intercourse (rCAI) with anonymous partners. Frequencies of psychosocial problems were compared at baseline, 9 and 18 months follow-up (FU). Bivariate associations between depression and drug-use behaviour, and their interaction with rCAI with anonymous sexual partners using was examined using linear regression. Receptive CAI increased from 41% at baseline to 53% at M18 (p = 0.038). At baseline, we found an interaction effect of poly-drug use and depression, potentiating rCAI with anonymous partners. Participants reporting poly-drug use associated with depression were significant more likely to report this type of sexual risk behaviour than those who did not report this association (p = 0.030). The high level of intertwined psychosocial problems call for multi-level interventions for those PrEP users experiencing a syndemic burden. [ABSTRACT FROM AUTHOR]

Female sex workers (FSWs) experience syndemic factors (e.g., polydrug use, hazardous alcohol consumption, client-perpetrated violence, depression, and sexually transmitted infections) that often heighten vulnerability to HIV and limit healthcare utilization. We hypothesized that syndemic factors will limit FSWs' uptake of pre-exposure prophylaxis (PrEP). From 2016 to 2017, 295 HIV-negative FSWs were enrolled in a behavioral HIV prevention trial in Tijuana and Ciudad Juarez, Mexico, underwent STI testing, and completed surveys on syndemic factors and perceived barriers to PrEP use. Syndemic scores (0–5) were calculated by summing syndemic factors. Latent class analysis (LCA) was used to identify homogeneous classes with respect to perceived barriers to PrEP use. We identified four classes: (1) perceived healthcare access barriers (8.3%), (2) perceived financial barriers (18.7%), (3) high level of perceived barriers (19.9%), and (4) low level of perceived barriers (53.0%) to PrEP use. Those experiencing three (adjusted odds ratio [aOR] = 3.63, 95% confidence interval [CI] = 1.24–10.67) and four or five (aOR = 6.30, 95% CI = 1.70–23.35) syndemic factors had a higher odds of membership in the class characterized by a high level of perceived barriers than in the class characterized by a low level of perceived barriers. Addressing syndemic factors may maximize PrEP's impact among FSWs along Mexico's northern border. [ABSTRACT FROM AUTHOR]

Background: Although studies consistently find that syndemic indicators are additively associated with increased HIV/STI risk behavior (e.g., condomless anal sex; CAS) among men who have sex with men (MSM), information is lacking about how syndemic indicators are associated with each other. Young Latino MSM are one of the most at-risk groups for acquiring HIV in the U.S. Understanding the associations of syndemic indicators with each other and with CAS may improve understanding of how to enhance sexual and behavioral health in this population. Method: Network analysis using the graphical LASSO (glasso) algorithm was employed to explore associations between CAS and syndemic indicators among 139 young Latino MSM. Structural and psychosocial syndemic indicators were assessed via self-report. CAS was defined as the number of partners in the past 3 months with whom one engaged in CAS. Results: Results of the network analysis suggested the variables with the highest centrality were unstable housing, prison history, childhood sexual abuse, and CAS. Specific significant associations included links between CAS and alcohol use (b = 0.40), childhood sexual abuse and unstable housing (b = − 0.75), alcohol use and childhood sexual abuse (b = 0.40), and substance use and intimate partner violence (b = 0.43). Conclusion: This pattern of interconnectedness demonstrates the potential for network analysis to examine nuanced interrelationships of syndemic indicators. The specific associations in this sample raise the question whether a primary focus of interventions should address the more central syndemic indicators for this population, such as alcohol use and unstable housing, and whether this would, via downstream effects, affect other aspects of behavioral health in this population. [ABSTRACT FROM AUTHOR]

Adverse perinatal outcomes are a significant contributor to neonatal and infant deaths. Mental illness, substance use disorders, and interpersonal trauma are often prevalent within obstetrical populations. Previous literature has documented the individual associations between these psychosocial factors and adverse perinatal outcomes. The co-occurrence of these three psychosocial factors might represent a syndemic among pregnant women, although they have not been described as such in the literature. Analysis of the interrelatedness and aggregate effect of these factors may allow for a more effective screening process that may reduce adverse perinatal outcomes. The objective of this article is to examine whether psychosocial factors (mental illness, substance use disorders, and interpersonal trauma) were independently and synergistically associated with adverse perinatal outcomes. This is a retrospective cohort study of 1,656 pregnant women at a single institution. Perinatal outcome and psychosocial data were abstracted from each participant's electronic medical record. Univariate and bivariate analyses, and multiple logistic regression were performed. Mean age was 27.5 (SD = 6.2) years. The majority was Black (60.6%) and single (58%). Psychosocial factors were reported in 35% of women. The incidence of adverse perinatal outcomes increased with greater number of psychosocial factors: 21.2% if no psychosocial factor, 27.0% if one psychosocial factor, 27.4% if two, and 35.3% if all three (for trend, p =.01). Women who reported all three psychosocial factors had twice the odds of adverse perinatal outcomes (adjusted odds ratio = 2.04, 95% confidence interval = [1.09, 3.81], p =.03) compared with those who reported none. Our data suggest there is a synergistic relationship between the psychosocial factors that is associated with increased adverse perinatal outcomes. A validated screening tool is needed to stratify patient's risk of adverse perinatal outcomes based on psychosocial factors. Such screening could lead to tailored interventions that could decrease adverse perinatal outcomes. [ABSTRACT FROM AUTHOR]

The interaction between the cumulative effect of psychosocial and structural factors (i.e. syndemic effect) and social networks among young Black transgender women and men who have sex with men (YBTM) remains understudied. A representative cohort of 16–29 year-old YBTM (n = 618) was assessed for syndemic factors [i.e. substance use; community violence; depression; poverty; justice system involvement (JSI)], social network characteristics, condomless anal sex (CAS), group sex (GS), and HIV-infection. The syndemic index significantly increased the odds of CAS, GS, and HIV-infection, and these effects were moderated by network characteristics. Network JSI buffered the effect on CAS, romantic network members buffered the effect on GS, and network age and proportion of family network members buffered the effect on HIV-infection. The proportion of friend network members augmented the effect on GS and HIV-infection. Future research to prevent HIV among YBTM should consider social network approaches that target both structural and psychosocial syndemic factors. [ABSTRACT FROM AUTHOR]

Background: The present study aims to (1) identify classes of psychosocial syndemics among adolescents in the U.S. based on psychological factors, such as depression and suicidal ideation, and social factors, such as binge drinking, alcohol use, and drug use; (2) identify correlates of psychosocial syndemics; and (3) examine the independent associations between psychosocial syndemic factors and sexual risk practices. Method: We used latent class analysis and a sample of 14,762 U.S. high school students who participated in the 2017 Youth Risk Behavior Surveillance System to examine youth population profiles based on shared characteristics of syndemics. Adjusting for sociodemographic factors, we conducted logistic regression to explore the connections between psychosocial syndemic factors and three sexual risk practices, namely, early initiation of sexual intercourse, condom use, and sex with multiple partners. Results: The study results indicate that three classes of risk exist among the sample: substance misuse (class 1, n = 3872, 26.2%), normative (class 2, n = 8791, 59.6%), and mental health problems (class 3, n = 2099, 14.2%). Class membership of psychosocial syndemics was significantly different by gender, age group, and race. The odds of initiating sexual intercourse before age 13 were positively associated with participants belonging in the substance misuse class and the mental health problem class. The odds of using condoms during the last sexual intercourse for currently sexually active adolescents were lower for participants classified in the substance misuse class. The likelihood of reporting having sex with four or more partners in a lifetime was higher among participants belonging to the substance misuse class. Conclusion: The study advances our understanding of the heterogeneity of class membership associated with psychosocial syndemic risk factors among adolescents and extends our understanding of syndemics in the area of adolescent health. Thus, practitioners and policymakers can design multicomponent and multilevel school-based HIV/STI prevention programs that meet the needs of adolescents. [ABSTRACT FROM AUTHOR]

Using data from a randomized controlled trial of 319 women mainly recruited from a Municipal Drug Court System in St. Louis, MO, this study evaluates substance use, victimization, and HIV/AIDS risk behaviors over time. The results indicated that, for all participants, the likelihood of victimization, using drugs, and meeting the criteria for HIV/AIDS risk decreased by 46% by the eight-month follow-up; however, results did not differ significantly by intervention group. Women who were sexually abused as a child, had 4+ arrests, or believed they had sexual and drug-using behaviors that need changing at baseline were more likely to experience these issues over time. [ABSTRACT FROM AUTHOR]

This article reviews research investigating the synergistic interaction of opioid-related morbidity and mortality with other social, psychiatric, and biological conditions, to describe how and why it is syndemic. Opioid-related overdose syndemics are driven by commercial interests, emerging in communities facing social and economic disadvantage, and interacting with a range of other health conditions. We included articles that empirically investigated an opioid-related syndemic, discussed syndemic co-factors associated with opioid use, or framed opioid consumption conceptually in relation to syndemics. Most articles were conducted in and first authored by investigators from North America. These articles were published in journals focused on general public health (n = 20), drug use and addiction (n = 18), and infectious disease or HIV (n = 15). Most original research articles (n = 60) employed quantitative methods. Unlike scholarship from other disciplines, specifically the controversial "Deaths of Despair" (DoD) framework, most research on opioid-related overdose syndemics fails to fully articulate the macro-structural drivers of localized disease clustering. Instead, the syndemics scholarship emphasizes the clinical manifestations of opioid and substance use, illustrating a problem in translation at the heart of syndemic theory. Moreover, syndemics scholarship on opioid impacts remains largely disconnected from the wider DoD discourse, which represents a missed opportunity for equity-oriented research. Re -directing attention to the sociopolitical forces that shape opioid-related overdose syndemics is necessary to prevent future commercially-driven health crises and repair lives harmed by these deadly syndemics. [ABSTRACT FROM AUTHOR]

We tested the applicability of syndemic theory to men who have sex with men (MSM) in Taiwan. Of 200 MSM (mean age = 27.1 years) surveyed, the majority (54%) experienced at least one syndemic burden due to problem drug use, intimate partner violence, or HIV stigma. In multivariable analysis, MSM with one or more syndemic burdens had greater than threefold higher odds of being HIV-positive. The impact of co-occurring psychosocial health conditions on HIV infection among MSM in Taiwan indicates the importance of identifying and engaging HIV-positive MSM in effective treatment, and implementing interventions more broadly to decrease syndemic burden. [ABSTRACT FROM AUTHOR]

Syndemic theory seeks to understand the interactions and clustering of disease and social conditions and explain racial disparities in HIV. Traditionally applied to HIV risk, this study characterizes the syndemic challenges of engagement in care among Black men living with HIV and provides insight into potential HIV treatment interventions to retain vulnerable individuals in care. Interviews were conducted with 23 HIV-positive men who were either out-of-care or nonadherent to antiretroviral therapy (ART). Interviews were audio recorded, transcribed verbatim, and coded using MAXQDA qualitative software. Researchers analyzed data using thematic content analysis to identify syndemic factors associated with disengagement in care or suboptimal ART adherence among Black men. Analyses revealed the syndemic nature of four themes: intersectional stigma, depression, substance use, and poverty. Findings from this study offer numerous opportunities for intervention including social and structural-level interventions to address syndemic processes and the influence of stigma and poverty on engagement in care. [ABSTRACT FROM AUTHOR]

Background: Concurrent psychosocial problems may synergistically increase the risk of HIV infection (syndemics), representing a challenge for prevention. We aimed to evaluate the prevalence and associated factors of syndemics among men who have sex with men (MSM) and transgender women (TGW) enrolled in the Brazilian pre-exposure prophylaxis demonstration study (PrEP Brasil Study).Methods: Secondary cross-sectional analysis of the PrEP Brasil Study was performed. Of 450 HIV-seronegative MSM/TGW enrolled in the PrEP Brasil Study- conducted at Rio de Janeiro and São Paulo, Brazil- 421 participants with complete data were included in the present analysis. Syndemics was defined as occurrence of ≥2 of the following conditions: polysubstance (≥2) use, binge drinking, positive depression screen, compulsive sexual behavior, and intimate partner violence (IPV).Results: The prevalence of recent polysubstance use was 22.8%, binge drinking 51.1%, positive depression screening 5.2%, compulsive sexual behavior 7.1%, and IPV 7.3%. Syndemics prevalence was 24.2%, and associated factors were younger age (adjusted Odds Ratio (aOR) 0.95, 95% Confidence Interval (95% CI) 0.92-0.98 per year increase), TGW vs. MSM (aOR 3.09, 95% CI: 1.2-8.0), some college education or more vs. less than college (aOR 2.49, 95% CI: 1.31-4.75), and multiple male sexual partners in prior 3 months (aOR 1.69, 95% CI: 0.92-3.14).Conclusion: Given the high prevalence of syndemics, particularly of polysubstance use and binge drinking, PrEP delivery offers an opportunity to diagnose and intervene in mental and social well-being. [ABSTRACT FROM AUTHOR]

Purpose: Although strong evidence documents the elevated prevalence of both substance use and mental health problems among sexual minorities (i.e., gay, lesbian, and bisexuals), relatively less research has examined whether risk of the co-occurrence of these factors is elevated among sexual minorities compared to heterosexuals. The object of this study was to (1) explore sexual orientation-based differences in substance use, psychological distress, and their co-occurrence in a representative sample in Sweden, and (2) examine if greater exposure to stressors, such as discrimination, victimization/threats, and social isolation, could explain these potential disparities and their co-occurrence.Methods: Data come from the cross-sectional Swedish National Public Health Survey, which collected random samples of individuals (16-84 years of age) annually from 2008 to 2015, with an overall response rate of 49.7% (n = 79,568 individuals; 1673 self-identified as lesbian, gay, or bisexual). Population-level sexual orientation differences in substance use (i.e., alcohol, tobacco, and cannabis) and psychological distress were examined.Results: Our findings showed significantly elevated prevalence of high-risk alcohol use, cannabis use, and daily tobacco smoking, among sexual minorities compared to heterosexuals. These substantial disparities in substance use more often co-occurred with psychological distress among sexual minorities than among heterosexuals. The elevated risk of co-occurring psychological distress and substance use was most notable among gay men relative to heterosexual men (adjusted odds ratio [AOR] = 2.65, CI 1.98, 3.55), and bisexual women relative to heterosexual women (AOR = 3.01, CI 2.43, 3.72). Multiple mediation analyses showed that experiences of discrimination, victimization, and social isolation partially explained the sexual orientation disparity in these co-occurring problems.Conclusions: This study adds to a growing body of research showing that sexual minorities experience multiple threats to optimal health and points toward future interventions that address the shared sources of these overlapping health threats in stigma-related stress. [ABSTRACT FROM AUTHOR]

Syndemic theory posits that epidemics of multiple physical and psychosocial problems co-occur among disadvantaged groups due to adverse social conditions. Although sexual minority populations are often stigmatized and vulnerable to multiple health problems, the syndemic perspective has been underutilized in understanding chronic disease. To assess the potential utility of this perspective in understanding the management of co-occurring HIV and Type 2 diabetes, we used linear regression to examine glycemic control (A1c) among men who have sex with men (MSM) with both HIV and Type 2 diabetes (n = 88). Bivariable linear regression explored potential syndemic correlates of inadequate glycemic control. Compared to those with adequate glycemic control (A1c ≤ 7.5 %), more men with inadequate glycemic control (A1c > 7.5 %) had hypertension (70 vs. 46 %, p = 0.034), high triglycerides (93 vs. 61 %, p = 0.002), depression (67 vs. 39 %, p = 0.018), current substance abuse (15 vs. 2 %, p = 0.014), and detectable levels of HIV (i.e., viral load ≥75 copies per ml blood; 30 vs. 10 %, p = 0.019). In multivariable regression controlling for age, the factors that were independently associated with higher A1c were high triglycerides, substance use, and detectable HIV viral load, suggesting that chronic disease management among MSM is complex and challenging for patients and providers. Findings also suggest that syndemic theory can be a clarifying lens for understanding chronic disease management among sexual minority stigmatized populations. Interventions targeting single conditions may be inadequate when multiple conditions co-occur; thus, research using a syndemic framework may be helpful in identifying intervention strategies that target multiple co-occurring conditions. [ABSTRACT FROM AUTHOR]