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Dive into the research topics where M. Reuel Friedman is active.

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Featured researches published by M. Reuel Friedman.


The Lancet | 2015

Male sex workers: practices, contexts, and vulnerabilities for HIV acquisition and transmission

Stefan Baral; M. Reuel Friedman; Scott Geibel; Kevin Rebe; Borche Bozhinov; Daouda Diouf; Keith Sabin; Claire E. Holland; Roy Chan; Carlos F. Caceres

Male sex workers who sell or exchange sex for money or goods encompass a very diverse population across and within countries worldwide. Information characterising their practices, contexts where they live, and their needs is limited, because these individuals are generally included as a subset of larger studies focused on gay men and other men who have sex with men (MSM) or even female sex workers. Male sex workers, irrespective of their sexual orientation, mostly offer sex to men and rarely identify as sex workers, using local or international terms instead. Growing evidence indicates a sustained or increasing burden of HIV among some male sex workers within the context of the slowing global HIV pandemic. Several synergistic facilitators could be potentiating HIV acquisition and transmission among male sex workers, including biological, behavioural, and structural determinants. Criminalisation and intersectional stigmas of same-sex practices, commercial sex, and HIV all augment risk for HIV and sexually transmitted infections among male sex workers and reduce the likelihood of these people accessing essential services. These contexts, taken together with complex sexual networks among male sex workers, define this group as a key population underserved by current HIV prevention, treatment, and care services. Dedicated efforts are needed to make those services available for the sake of both public health and human rights. Evidence-based and human rights-affirming services dedicated specifically to male sex workers are needed to improve health outcomes for these men and the people within their sexual networks.


PLOS ONE | 2014

HIV Infection and Sexual Risk among Men Who Have Sex with Men and Women (MSMW): A Systematic Review and Meta-Analysis

M. Reuel Friedman; Chongyi Wei; Mary Lou Klem; Anthony J. Silvestre; Nina Markovic; Ron Stall

Objectives To estimate the number of men who have sex with men and women who are HIV-positive in the United States, and to compare HIV prevalence rates between men who have sex with men and women, men who have sex with men only, and men who have sex with women exclusively. Methods Following PRISMA guidelines, we conducted a systematic review and meta-analysis of reports referencing HIV prevalence and men who have sex with men and women. We searched PubMed and Ovid PsycINFO for peer-reviewed, U.S.-based articles reporting on HIV prevalence among men who have sex with men and women. We conducted event rate, effect size, moderation and sensitivity analyses. Results We estimate that 1.0% of U.S. males are bisexually-behaving, and that 121,800 bisexually-behaving men are HIV-positive. Men who have sex with men and women are less than half as likely to be HIV-positive as men who have sex with men only (16.9% vs. 33.3%; OR = 0.41, 95% CI: 0.31, 0.54), but more than five times as likely to be HIV-positive as men who have sex with women exclusively (18.3% vs. 3.5%; OR = 5.71, 95% CI: 3.47, 9.39). They are less likely to engage in unprotected receptive anal intercourse than men who have sex with men only (15.9% vs. 35.0%; OR = 0.36, 95% CI: 0.28, 0.46). Men who have sex with men and women in samples with high racial/ethnic minority proportions had significantly higher HIV prevalence than their counterparts in low racial/ethnic minority samples. Conclusions This represents the first meta-analysis of HIV prevalence in the U.S. between men who have sex with men and women and men who have sex with men only. Data collection, research, and HIV prevention and care delivery specifically tailored to men who have sex with men and women are necessary to better quantify and ameliorate this population’s HIV burden.


AIDS | 2015

Effects of syndemics on HIV viral load and medication adherence in the multicentre AIDS cohort study.

M. Reuel Friedman; Ron Stall; Anthony J. Silvestre; Chongyi Wei; Steve Shoptaw; Amy L. Herrick; Pamela J. Surkan; Linda A. Teplin; Michael Plankey

Objectives:The objective of this study is to determine associations between intertwining epidemics (syndemics) and HIV medication adherence and viral load levels among HIV-positive MSM and to test whether adherence mediates the relationship between syndemics and viral load. Design:We analysed participant data collected between 2003 and 2009 from the Multicenter AIDS Cohort Study, a prospective HIV/AIDS cohort study in four U.S. cities. Methods:We conducted longitudinal analyses (repeated measures mixed models) to assess whether differences in viral load levels, undetectable viral load and self-reported HIV medication adherence were associated with count of syndemic conditions (substance use, depression symptoms and sexual risk behaviour, range 0–3), adjusting for race/ethnicity, age and income. Mediation analyses were conducted using structural equation modelling and the SAS %mediate macro. Results:Syndemics count was associated with higher viral loads (P < 0.0001) and lower adherence (P < 0.0001). Increased counts of concomitant syndemics were associated with viral load (P < 0.01), detectable viral load (P < 0.05) and adherence (P < 0.001). Black MSM experienced worse outcomes across domains than white MSM (P < 0.0001) and experienced higher overall rates of syndemics (P < 0.01). Adherence significantly mediated the relationship between syndemics and viral load, accounting for an estimated 32.3% of the effect (P < 0.05). Conclusion:Effectively lowering viral load levels among MSM has implications for both HIV/AIDS prevention and care. Our findings suggest that integrating substance use interventions, mental healthcare and sexual risk prevention into standard HIV care may be necessary to optimize treatment and Treatment as Prevention (TasP) models.


Journal of Acquired Immune Deficiency Syndromes | 2014

Stuck in the middle: longitudinal HIV-related health disparities among men who have sex with men and women.

M. Reuel Friedman; Ron Stall; Anthony J. Silvestre; Brian Mustanski; Steve Shoptaw; Pamela J. Surkan; Charles R. Rinaldo; Michael Plankey

Introduction:Men who have sex with men and women (MSMW) have been shown in cross-sectional studies to suffer HIV-related health disparities above and beyond those found among men who have sex with men only (MSMO). We conducted a secondary data analysis over a 7-year time frame of participants in the Multicenter AIDS Cohort Study, a long-standing prospective cohort study, to examine whether MSMW had persistently higher rates of depression symptoms, polydrug use, and (among HIV-positive men who have sex with men) HIV viral load levels compared with MSMO. Methods:Men were behaviorally defined as bisexual if they reported sexual activity with at least 1 male and 1 female partner between study waves 38 and 50. We used generalized mixed modeling with repeated measures to test differences in CES-D score, polydrug use, and viral load between sexually active MSMO (n = 1514) and MSMW (n = 111), adjusting for age, income, race/ethnicity, and recent seroconversion. Results:MSMW were significantly more likely than MSMO to have higher CES-D scores, polydrug use, and viral load levels (all P < 0.01). Outcome trajectories did not differ significantly over time between these groups. Black and Hispanic HIV-positive MSMW had higher viral load levels relative to white HIV-positive MSMW (P < 0.01). Discussion:Compared with MSMO, MSMW in the Multicenter AIDS Cohort Study suffer from profound and persistent HIV-related health disparities across biological, behavioral, and psychosocial domains. Further qualitative and quantitative research contextualizing the pathways underlying these disparities is recommended for intervention development targeting MSMW at risk for HIV acquisition and transmission.


Aids Care-psychological and Socio-medical Aspects of Aids\/hiv | 2017

Someone to count on: social support as an effect modifier of viral load suppression in a prospective cohort study

M. Reuel Friedman; Robert W. S. Coulter; Anthony J. Silvestre; Ron Stall; Linda A. Teplin; Steve Shoptaw; Pamela J. Surkan; Michael Plankey

ABSTRACT Though functional social support has been shown to serve as a protective factor for HIV viral load suppression in other populations, scant research has examined this relationship among men who have sex with men (MSM) in the United States. We assessed characteristics of social support, effects of social support on HIV viral load, and moderation by social support of the relationship between psychosocial indicators of a synergistic epidemic (syndemic) and HIV viral load. We analyzed longitudinal data from HIV-positive MSM using antiretroviral therapy who were enrolled in the Multicenter AIDS Cohort Study between 2002 and 2009 (n = 712). First, we conducted reliability assessments of a one-item social support measure. Then, we conducted a series of generalized longitudinal mixed models to assess our research questions. Moderation was assessed using an interaction term. A three-level (low/medium/high) social support variable demonstrated high reliability (intraclass correlation coefficients  = 0.72; 95% CI: 0.70, 0.75). Black and Hispanic MSM reported lower social support than their White counterparts (p < .0001). Recent sero-conversion was associated with higher social support (p < .05). Higher numbers of concomitant syndemic indicators (depression, polysubstance use, and condomless anal sex) were associated with lower social support (p < .0001). Medium and high social support levels were associated with greater viral load suppression and lower viral load means (p < .0001). Social support moderated the relationships between syndemic and HIV viral load (p < .05). HIV-positive MSM, particularly those of color, may benefit greatly from interventions that can successfully boost functional social support. Creating strengths-based interventions may also have particularly high impact among HIV-positive MSM with the highest psychosocial burdens.


American Journal of Public Health | 2016

Sexual-orientation differences in Positive Youth Development: the mediational role of bullying victimization

Robert W. S. Coulter; Amy L. Herrick; M. Reuel Friedman; Ron Stall

OBJECTIVES To examine sexual-orientation differences in positive youth development, and how bullying victimization mediated these differences in a sample of adolescents. METHODS In 2007 to 2008, positive youth development was measured in 1870 adolescents from US schools and after-school programs in 45 states by using the validated Five Cs model of competence, confidence, connection, character, and caring/compassion. Sexual-minority youths (6.8%) reported having same- or both-gender sexual attractions. Nonattracted youths (4.2%) reported having no sexual attractions. RESULTS Compared with sexual-minority youths, heterosexual and nonattracted youths had lower odds of being a victim of bullying. Heterosexual and nonattracted youths also had higher average scores in competence, confidence, and connection, but these associations between sexual orientation and positive youth development scores were partly attributable to lack of bullying victimization. CONCLUSIONS Designing, implementing, and evaluating interventions that reduce bullying can give sexual-minority youths access to several building blocks of health and well-being.


Archive | 2016

The Role of Syndemic in Explaining Health Disparities Among Bisexual Men: A Blueprint for a Theoretically Informed Perspective

M. Reuel Friedman; Brian Dodge

Although studies have documented dramatic health disparities among bisexual men and women, relative to their exclusively homosexual and heterosexual counterparts, research on potential explanatory factors underlying these differences in health outcomes has lagged. In an attempt to frame future research on health among bisexual individuals, this review will interpret previous research on health and risk disparities among bisexual men, using the lens of Syndemic Theory. We review findings from studies on a wide range of health concerns (including adverse childhood events, psychosocial conditions, sexual risk behavior, incidence and prevalence of HIV and other sexually transmitted infections (STIs), and health behavior following an HIV diagnosis) in an attempt to provide theoretically-informed perspectives from which to further study health disparities among bisexual men and women in more nuanced ways. Though there is emerging research on syndemic disparities among bisexual women, this review centers on bisexual men due to the deeper vein of HIV-related research in this population.


Harm Reduction Journal | 2017

Harm reduction principles for healthcare settings

Mary Hawk; Robert W. S. Coulter; James E. Egan; Stuart Fisk; M. Reuel Friedman; Monique Tula; Suzanne Kinsky

BackgroundHarm reduction refers to interventions aimed at reducing the negative effects of health behaviors without necessarily extinguishing the problematic health behaviors completely. The vast majority of the harm reduction literature focuses on the harms of drug use and on specific harm reduction strategies, such as syringe exchange, rather than on the harm reduction philosophy as a whole. Given that a harm reduction approach can address other risk behaviors that often occur alongside drug use and that harm reduction principles have been applied to harms such as sex work, eating disorders, and tobacco use, a natural evolution of the harm reduction philosophy is to extend it to other health risk behaviors and to a broader healthcare audience.MethodsBuilding on the extant literature, we used data from in-depth qualitative interviews with 23 patients and 17 staff members from an HIV clinic in the USA to describe harm reduction principles for use in healthcare settings.ResultsWe defined six principles of harm reduction and generalized them for use in healthcare settings with patients beyond those who use illicit substances. The principles include humanism, pragmatism, individualism, autonomy, incrementalism, and accountability without termination. For each of these principles, we present a definition, a description of how healthcare providers can deliver interventions informed by the principle, and examples of how each principle may be applied in the healthcare setting.ConclusionThis paper is one of the firsts to provide a comprehensive set of principles for universal harm reduction as a conceptual approach for healthcare provision. Applying harm reduction principles in healthcare settings may improve clinical care outcomes given that the quality of the provider-patient relationship is known to impact health outcomes and treatment adherence. Harm reduction can be a universal precaution applied to all individuals regardless of their disclosure of negative health behaviors, given that health behaviors are not binary or linear but operate along a continuum based on a variety of individual and social determinants.


Aids and Behavior | 2016

Overview of the University of Pittsburgh/amfAR Training Program in HIV Prevention Research for MSM and Male-to-Female Transgender Populations in Low- and Middle-Income Countries

Ron Stall; James E. Egan; Suzanne Kinsky; Robert W. S. Coulter; M. Reuel Friedman; Derrick D. Matthews; Kent Klindera; Michael Cowing

Gay men, other men who have sex with men and transgender (GMT) populations suffer a disproportionate burden of HIV disease around the globe, which is directly attributable to the virulently homophobic environments in which many GMT people live. In addition to the direct effects of homophobia on GMT individuals, the ongoing marginalization of GMT people has meant that there is limited social capital on which effective HIV prevention and care programs can be built in many low- and middle-income countries (LMIC). Thus, meaningful responses meant to address the dire situation of GMT populations in LMIC settings must include a combination of bold and innovative approaches if efforts to end the epidemic are to have any chance of making a real difference. The HIV Scholars Program at the University of Pittsburgh’s Center for LGBT Health Research is a prime example of a creative and dynamic approach to raising the expertise needed within GMT populations to respond to the global HIV/AIDS pandemic.


Sexually Transmitted Infections | 2018

High HIV incidence among young black men who have sex with men: constructing a retrospective cohort from a community health programme

M. Reuel Friedman; Nayck Feliz; Jess Netto; Brian J. Adams; Derrick D. Matthews; Ron Stall; Ken S Ho; Sarah Krier; Anthony J. Silvestre

Objectives We sought to calculate HIV incidence in a retrospective cohort of young (13–29 years old) black men who have sex with men (YBMSM) accessing repeated HIV-antibody testing in a mid-size city in the USA. Methods We aggregated site-specific HIV-antibody testing results from the projects inception among YBMSM who received an initial negative result and accessed at least one additional HIV-antibody test. From these data, we assessed number of seroconversions and person-years and calculated HIV incidence using a mid-P exact test to estimate 95% CIs. Results Five seroconversions were documented over 42.3 person-years (the mean age at first onsite test: 19.7 years), resulting in an HIV incidence rate of 11.8% (95% CI 4.3% to 26.2%). The mean age at seroconversion was 20.4 (±3.0) years. Conclusions Even in mid-size cities with low HIV prevalence rates in the general population, HIV incidence among YBMSM may be high. Community-based HIV-antibody testing organisations serving YBMSM should be encouraged and trained to track repeated HIV testing and calculate HIV incidence rates. Increased resources should be deployed to develop and encourage regular HIV testing in community health sites serving YBMSM.

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Ron Stall

University of Pittsburgh

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James E. Egan

University of Pittsburgh

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Amy L. Herrick

University of Pittsburgh

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Lisa A. Eaton

University of Connecticut

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Steve Shoptaw

University of California

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