RESUMO
The HIV epidemic continues to expand in Russia, with suboptimal levels of care uptake. This qualitative study aimed to characterize social capital resources and lived stigma experiences, coping, and disclosure among care-nonadherent men who have sex with men (MSM) living with HIV in Russia. Twenty-five HIV-positive MSM - recruited online - completed in-depth interviews over Zoom, with data analyzed using MAXQDA software. Stigma was more likely to be encountered in interactions with persons with whom social ties were weaker such as medical providers and relatives, particularly males. Close friends - often other HIV-positive MSM and female relatives - were the most supportive and least stigmatizing. Similar persons were most often considered for HIV serostatus disclosure. Coping strategies to reduce the impact of stigma included ignoring stigmatizing experiences, seeking support from members of one's social circle, minimizing contact with stigmatizing persons, seeking new relationships with persons who are also HIV-positive, proactively reducing stigma through involvement in advocacy roles, and correcting myths and educating others about HIV infection. These findings underscore the need for interventions to assist HIV-positive MSM in building accepting social capital resources to reduce the impact of stigma and to build support within their social networks, often with other HIV-positive MSM.
Assuntos
Adaptação Psicológica , Infecções por HIV , Homossexualidade Masculina , Pesquisa Qualitativa , Capital Social , Estigma Social , Humanos , Masculino , Federação Russa , Adulto , Infecções por HIV/psicologia , Homossexualidade Masculina/psicologia , Pessoa de Meia-Idade , Apoio Social , Revelação da Verdade , Adulto Jovem , Entrevistas como Assunto , Feminino , Soropositividade para HIV/psicologia , Minorias Sexuais e de Gênero/psicologia , Autorrevelação , Capacidades de EnfrentamentoRESUMO
Black sexual minority men who have sex with men (MSM) in the United States are at disparate risk for contracting HIV infection, but pre-exposure prophylaxis (PrEP) use is suboptimal. Social network methods were used to recruit a community sample of racial minority MSM and transgender women (TGW) in two Midwestern US cities. 250 PrEP-eligible (HIV-negative) participants completed measures assessing current and intended PrEP use; demographic characteristics; PrEP knowledge, attitudes, norms, stigma, and self-efficacy; and structural barriers to PrEP. Multivariate analyses established predictors of current and intended PrEP use. Only 12% of participants reported currently using PrEP, which was associated with greater PrEP knowledge and not having a main partner, with trends for greater PrEP use by younger participants and those with partners living with HIV. Among participants not currently on PrEP, strength of PrEP use intentions was associated with higher PrEP knowledge, PrEP descriptive social norms, and PrEP use self-efficacy. This study is among few to directly compare Black who have adopted PrEP with those who have not. Its findings underscore the potential benefits of employing social network approaches for strengthening PrEP use peer norms, increasing PrEP knowledge and self-efficacy, and optimizing PrEP uptake among racial minority MSM and TGW.
Assuntos
Negro ou Afro-Americano , Infecções por HIV , Conhecimentos, Atitudes e Prática em Saúde , Homossexualidade Masculina , Profilaxia Pré-Exposição , Pessoas Transgênero , Humanos , Masculino , Profilaxia Pré-Exposição/estatística & dados numéricos , Adulto , Pessoas Transgênero/estatística & dados numéricos , Pessoas Transgênero/psicologia , Homossexualidade Masculina/estatística & dados numéricos , Homossexualidade Masculina/psicologia , Homossexualidade Masculina/etnologia , Infecções por HIV/prevenção & controle , Infecções por HIV/etnologia , Negro ou Afro-Americano/estatística & dados numéricos , Negro ou Afro-Americano/psicologia , Feminino , Meio-Oeste dos Estados Unidos , Pessoa de Meia-Idade , Adulto Jovem , Fármacos Anti-HIV/uso terapêutico , Estigma Social , Minorias Sexuais e de Gênero/estatística & dados numéricos , Minorias Sexuais e de Gênero/psicologia , Parceiros Sexuais/psicologia , Adolescente , AutoeficáciaRESUMO
Half of HIV-positive persons in Russia are on antiretroviral therapy (ART), and only 27% are virally suppressed. A feasibility pilot intervention to mobilize social capital resources for HIV care support was conducted in St. Petersburg. Out-of-care or ART-nonadherent HIV-positive persons (n = 24) attended a five-session intervention to increase access social capital resources (i.e., family, friends, or providers) to mobilize supports for entering care, initiating care, and adhering to ART. HIV care indicators were assessed at baseline, an immediate followup (FU-1), and 6-month followup (FU-2) points. At FU-1, participants more frequently discussed their care experiences with others, verifying the intervention's mechanism of action. Participants increased in scales of medication taking adherence (p = 0.002, FU-1; p = 0.011, FU-2), self-efficacy (p = 0.042; FU-1), and outcome expectancies (p = 0.016, FU-2). Among persons not on ART, HIV Medication Readiness scale scores increased at FU-1 (p = 0.032) but became attenuated at FU-2. Participants tended to more frequently keep care appointments (79%, baseline to 90%, FU-1, p = 0.077); to have undetectable viral load (54%, baseline to 74%, FU-2; p = 0.063); and to have fewer past-month days with delayed or incomplete medication doses (7.8, baseline to 4.2, FU-1; p = 0.084). This novel social capital intervention is promising for improving HIV care-related outcomes and warrants a full-scale evaluation.
Assuntos
Infecções por HIV/tratamento farmacológico , Infecções por HIV/psicologia , Adesão à Medicação/psicologia , Autoeficácia , Capital Social , Rede Social , Adulto , Feminino , Infecções por HIV/epidemiologia , Recursos em Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Federação Russa/epidemiologia , Apoio Social , Carga ViralRESUMO
In the U.S., HIV incidence is highest among Black men who have sex with men (MSM) but PrEP uptake is low, in part due to lack of normative support for using PrEP. This research pilot tested a social network-level intervention designed to increase PrEP use willingness, interest, and peer supports among Black MSM in Milwaukee. Five community social networks (n = 40 participants) of racial minority MSM were assessed at baseline with measures of PrEP knowledge, interest, attitudes, and action taking. Persons most interconnected with others in each network attended an intervention that provided training to increase knowledge about PrEPbenefits, address PrEP concerns, endorse PrEP use as a symbol of pride and health, and deliver these messages to others in their social networks. All network members were re-administered the same measures at 3-month followup. Significant increases over time were found in network members' PrEP knowledge, attitudes, norm perceptions, self-efficacy, and willingness to use PrEP. Participants more often talked with friends about HIV and with their health care providers about PrEP. The percentage of participants who reported using PrEP increased from 3% to 11%. Larger-scale evaluations of this intervention model are needed.
Assuntos
Fármacos Anti-HIV/administração & dosagem , Negro ou Afro-Americano/psicologia , Infecções por HIV/prevenção & controle , Conhecimentos, Atitudes e Prática em Saúde , Homossexualidade Masculina/psicologia , Aceitação pelo Paciente de Cuidados de Saúde , Profilaxia Pré-Exposição/métodos , Rede Social , Adulto , Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Homossexualidade Masculina/etnologia , Humanos , Masculino , Grupo Associado , Sexo Seguro , Wisconsin/epidemiologiaRESUMO
Over 1 million HIV infections have been diagnosed in Russia, and HIV care uptake and viral suppression are very low. 241 HIV-positive individuals in St. Petersburg were enrolled through social networks, provided blood for viral load testing, and completed measures of medication-taking adherence, readiness, and self-efficacy; psychosocial well-being; and substance use. Outcomes included attending an HIV care appointment in the past 6 months, >90% ART adherence, and undetectable viral load. 26% of participants had no recent care appointment, 18% had suboptimal adherence, and 56% had detectable viral load. Alcohol use consistently predicted all adverse health outcomes. Having no recent care visit was additionally associated with being single and greater past-month drug injection frequency. Poor adherence was additionally predicted by lower medication-taking self-efficacy and lower anxiety. Detectable viral load was additionally related to younger age. Comprehensive interventions to improve HIV care in Russia must address substance abuse, anxiety, and medication-taking self-efficacy.
Assuntos
Antirretrovirais/uso terapêutico , Ansiedade/complicações , Continuidade da Assistência ao Paciente , Infecções por HIV/tratamento farmacológico , Adesão à Medicação , Retenção nos Cuidados , Transtornos Relacionados ao Uso de Substâncias/complicações , Carga Viral/efeitos dos fármacos , Adulto , Ansiedade/psicologia , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Assunção de Riscos , Federação Russa/epidemiologia , Autoeficácia , Transtornos Relacionados ao Uso de Substâncias/psicologiaRESUMO
This study examined social and health-related correlates of AIDS conspiracy theories among 464 African American men who have sex with men (MSM). Exploratory factor analysis revealed two subscales within the AIDS conspiracy beliefs scale: medical mistrust and AIDS genocidal beliefs. Multiple regression analyses revealed medical mistrust and AIDS genocidal beliefs were both associated negative condom use attitudes and higher levels of internalized homonegativity. Medical mistrust was also associated with lower knowledge of HIV risk reduction strategies. Finally, we conducted bivariate regressions to examine the subsample of participants who reported being HIV-positive and currently taking HIV antiretroviral therapy (ART) to test associations between sexual behavior and HIV treatment and AIDS conspiracy theories. Among this subsample, medical mistrust was associated with having a detectable viral load and not disclosing HIV-status to all partners in the previous 3 months. Collectively, these findings have implications for HIV prevention and treatment for African American MSM.
Assuntos
Negro ou Afro-Americano/psicologia , Cultura , Infecções por HIV/etnologia , Conhecimentos, Atitudes e Prática em Saúde , Homossexualidade Masculina/psicologia , Confiança , Adulto , Negro ou Afro-Americano/etnologia , Fármacos Anti-HIV/administração & dosagem , Antirretrovirais/uso terapêutico , Atitude Frente a Saúde , Preservativos/estatística & dados numéricos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/psicologia , Homossexualidade Masculina/etnologia , Humanos , Masculino , Pessoa de Meia-Idade , Assunção de Riscos , Comportamento Sexual , Parceiros Sexuais , Estados UnidosRESUMO
OBJECTIVES: We examined correlates of condomless anal intercourse with nonmain sexual partners among African American men who have sex with men (MSM). METHODS: We recruited social networks composed of 445 Black MSM from 2012 to 2014 in Milwaukee, Wisconsin; Cleveland, Ohio; and Miami Beach, Florida. Participants reported past-3-month sexual behavior, substance use, and background, psychosocial, and HIV-related characteristics. RESULTS: Condomless anal intercourse outside main concordant partnerships, reported by 34.4% of MSM, was less likely in the case of no alcohol and marijuana use in the past 30 days, and higher risk-reduction behavioral intentions. High frequency of condomless anal intercourse acts with nonmain partners was associated with high gay community participation, weak risk-reduction intentions, safer sex not being perceived as a peer norm, low condom-use self-efficacy, and longer time since most recent HIV testing. CONCLUSIONS: Condomless anal intercourse with nonmain partners among Black MSM was primarily associated with gay community participation, alcohol and marijuana use, and risk-reduction behavioral intentions.
Assuntos
Preservativos/estatística & dados numéricos , Infecções por HIV/etnologia , Conhecimentos, Atitudes e Prática em Saúde/etnologia , Homossexualidade Masculina/psicologia , Transtornos Relacionados ao Uso de Substâncias/etnologia , Adolescente , Adulto , Negro ou Afro-Americano/psicologia , Negro ou Afro-Americano/estatística & dados numéricos , Comorbidade , Florida , Infecções por HIV/transmissão , Homossexualidade Masculina/etnologia , Homossexualidade Masculina/estatística & dados numéricos , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Ohio , Grupo Associado , Assunção de Riscos , Autoeficácia , Normas Sociais , Wisconsin , Adulto JovemRESUMO
Russia has a large HIV epidemic, but medical care engagement is low. Eighty HIV-positive persons in St. Petersburg completed in-depth interviews to identify barriers and facilitators of medical HIV care engagement. The most commonly-reported barriers involved difficulties accessing care providers, dissatisfaction with the quality of services, and negative attitudes of provider staff. Other barriers included not having illness symptoms, life stresses, low value placed on health, internalized stigma and wanting to hide one's HIV status, fears of learning about one's true health status, and substance abuse. Care facilitators were feeling responsible for one's health and one's family, care-related support from other HIV-positive persons, and the onset of health decline and fear of death. Substance use remission facilitated care engagement, as did good communication from providers and trust in one's doctor. Interventions are needed in Russia to address HIV care infrastructural barriers and integrate HIV, substance abuse, care, and psychosocial services.
Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Estigma Social , Transtornos Relacionados ao Uso de Substâncias/complicações , Adolescente , Adulto , Continuidade da Assistência ao Paciente/estatística & dados numéricos , Feminino , Infecções por HIV/psicologia , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Nível de Saúde , Humanos , Entrevistas como Assunto , Masculino , Adesão à Medicação/estatística & dados numéricos , Pessoa de Meia-Idade , Pesquisa Qualitativa , Federação Russa/epidemiologia , Apoio Social , Transtornos Relacionados ao Uso de Substâncias/psicologiaRESUMO
Black men who have sex with men (MSM) bear a disproportionate burden of human immunodeficiency (HIV) incidence in the United States. Little research has focused on the associations between social media use and sexual behavior among Black MSM. 205 Black MSM completed measures assessing social media use and sexual behaviors. Men spent an average of 34 h per week on social media sites. 53 % arranged sexual hookups online in the previous 3 months, and did so a mean of 10 times. Overall, users of social media and men who arranged sexual hookups online engaged in more risky behaviors than non-users and men who did not arrange sexual hookups online. However, partner-level data indicated that men engaged in fewer risky behaviors with partners met online compared to partners met in other ways such as at bars or through friends. Social media-based interventions designed to decrease HIV transmission among racial minority MSM are needed.
Assuntos
Homossexualidade Masculina/etnologia , Assunção de Riscos , Mídias Sociais/estatística & dados numéricos , Rede Social , Sexo sem Proteção/estatística & dados numéricos , População Urbana , Adolescente , Adulto , Negro ou Afro-Americano/psicologia , Negro ou Afro-Americano/estatística & dados numéricos , População Negra/psicologia , População Negra/estatística & dados numéricos , Florida , Infecções por HIV/prevenção & controle , Homossexualidade Masculina/estatística & dados numéricos , Humanos , Masculino , Ohio , Fatores de Risco , Comportamento Sexual , Parceiros Sexuais , Fatores Socioeconômicos , WisconsinRESUMO
Worldwide, men who have sex with men (MSM) remain one of the most HIV-vulnerable community populations. A global public health priority is developing new methods of reaching MSM, understanding HIV transmission patterns, and intervening to reduce their risk. Increased attention is being given to the role that MSM networks play in HIV epidemiology. This review of MSM network research studies demonstrates that: (1) Members of the same social network often share similar norms, attitudes, and HIV risk behavior levels; (2) Network interventions are feasible and powerful for reducing unprotected sex and potentially for increasing HIV testing uptake; (3) HIV vulnerability among African American MSM increases when an individual enters a high-risk sexual network characterized by high density and racial homogeneity; and (4) Networks are primary sources of social support for MSM, particularly for those living with HIV, with greater support predicting higher care uptake and adherence.
Assuntos
Infecções por HIV/transmissão , Homossexualidade Masculina , Comportamento Social , Atitude Frente a Saúde , Infecções por HIV/psicologia , Humanos , Relações Interpessoais , Masculino , Assunção de Riscos , Apoio SocialRESUMO
African American men who have sex with men (MSM) in the United States bear a disproportionate burden of HIV infection and disease incidence. 178 Black MSM provided detailed situational information concerning their most recent act of anal intercourse (AI) with a male partner including condom use, partner characteristics, serostatus disclosure, and substance use. Participants completed scales assessing AIDS-related as well as broader contextual domains. Most recent AI acts occurred with same-race partners outside of main relationships. Over one-third of AI acts were unprotected, and almost half of the unprotected acts were not between known HIV-concordant partners. Nearly half of men reported substance use before sex. In a multiple regression analysis, unprotected AI with a partner not known to be concordant was predicted by low risk reduction intentions and indicators of a casual relationship. The findings highlight issues and partner contexts associated with risk for contracting HIV infection among Black MSM.
Assuntos
Negro ou Afro-Americano/estatística & dados numéricos , Conhecimentos, Atitudes e Prática em Saúde , Homossexualidade Masculina/etnologia , Assunção de Riscos , Comportamento Sexual/etnologia , Parceiros Sexuais , Sorodiagnóstico da AIDS , Adulto , Pesquisa Participativa Baseada na Comunidade , Preservativos/estatística & dados numéricos , Florida/epidemiologia , Infecções por HIV/epidemiologia , Infecções por HIV/etnologia , Infecções por HIV/prevenção & controle , Humanos , Masculino , Ohio/epidemiologia , Comportamento Sexual/estatística & dados numéricos , Fatores Socioeconômicos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Inquéritos e Questionários , Sexo sem Proteção/etnologia , Sexo sem Proteção/estatística & dados numéricosRESUMO
African American men who have sex with men (AAMSM) are disproportionately burdened by new and existing HIV infections. In spite of this, few HIV prevention interventions have been developed that meet the specific needs of AAMSM and that are culturally appropriate and build on strengths and resources. In this paper, we examine constructed families, including those who belong to houses and those who do not, from a three city sample of 196 AAMSM. Results show that the majority of AAMSM who belong to constructed families do not participate in houses or balls. Both house and non-house affiliated constructed families are important sources of social support among AAMSM. Participants reported limited success in spreading HIV messages at ball events, but talk about HIV within their constructed families. Social network approaches to HIV prevention may capitalize on existing social ties within constructed families to promote safer sexual behaviors.
Assuntos
Negro ou Afro-Americano/psicologia , Características da Família , Infecções por HIV/prevenção & controle , Homossexualidade Masculina/psicologia , Adolescente , Adulto , Negro ou Afro-Americano/estatística & dados numéricos , Feminino , Infecções por HIV/etiologia , Infecções por HIV/psicologia , Humanos , Entrevistas como Assunto , Masculino , Pessoa de Meia-Idade , Estados Unidos , Adulto JovemRESUMO
COVID-19 has disproportionately burdened impoverished minority communities. This study recruited an age- and gender-diverse community sample of 541 Black adults in a United States Midwestern city with large racial health disparities, with the aim of examining factors associated with COVID-19 vaccination. All participants completed measures assessing their COVID-19 vaccination status (unvaccinated, received primary vaccination, or received primary plus booster vaccination) as well as demographic characteristics, socioeconomic factors, health and health system factors, and health behavior theory constructs related to vaccination. In this predominantly low-income sample, 55% of participants had received primary COVID-19 vaccination and 31% of the sample had received a booster dose. Multiple regression analyses established that having primary vaccination was significantly predicted by older age, political identification as Democrat, education beyond high school, barriers to accessing health care, as well as higher trust of vaccine benefits, less preference for natural immunity, stronger social norms favoring vaccination, and perceiving higher levels of collective responsibility. Surprisingly, higher global medical mistrust and difficulty with healthcare access were associated with vaccination. The model explained 76% of the variance in primary COVID-19 vaccination. Having received a COVID-19 booster was predicted by older age, previous COVID-19 infection, higher trust in vaccine benefits, and fewer worries about unforeseen future effects of vaccination. Study findings identified factors associated with COVID-19 vaccine uptake in racial minority communities, and support the benefits of interventions that harness social network supports for vaccination, address community vaccine concerns, and appeal to collective responsibility to promote vaccine uptake.
Assuntos
Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Síndrome da Imunodeficiência Adquirida/prevenção & controle , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Homossexualidade Masculina , Minorias Sexuais e de Gênero , Síndrome da Imunodeficiência Adquirida/epidemiologia , Europa (Continente)/epidemiologia , Europa Oriental/epidemiologia , Infecções por HIV/epidemiologia , Humanos , Masculino , Prevalência , Abuso de Substâncias por Via Intravenosa , U.R.S.S./epidemiologiaRESUMO
This study examined psychosocial and health needs of persons living with HIV (PLWH) in Russia. The study combined baseline datasets from two social network samples of PLWH in St. Petersburg (N = 872). Samples were recruited between 2014 and 2018 by enrolling a PLWH seed who was either out-of-care or treatment nonadherent as well as network members surrounding each seed, assessing each participant's HIV care, transmission risk, substance use, and mental health characteristics. Almost one-quarter of participants said they were never offered antiretroviral therapy (ART), and-among those offered ART-one-quarter refused or discontinued therapy and 45% were <95% ART-adherent. Almost half of participants had detectable viral load, and many reported continued condomless intercourse with potentially nonconcordant serostatus partners or needle sharing. Over 46% of participants had elevated scores on measures of depression, hopelessness, state anxiety, or poor social support. Study findings illustrate unmet needs of PLWH in Russia.
Assuntos
Infecções por HIV , Transtornos Relacionados ao Uso de Substâncias , Infecções por HIV/prevenção & controle , Humanos , Uso Comum de Agulhas e Seringas , Assunção de Riscos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/psicologia , Carga ViralRESUMO
Coronavirus disease 2019 (COVID-19) created life-disrupting stressors that disproportionately burden disadvantaged communities with devastating impacts that extend far beyond the burden of the disease itself, including joblessness, housing and food insecurity, educational system upheavals, isolation due to disrupted relationships, worsened mental health and substance use and violence. Socially interconnected community members are resources whose efforts can be mobilised to improve COVID-19 coping within their social networks. This research examined the feasibility, acceptability, and reach of a social media-based peer influencer intervention for COVID-19 coping. Over a 9-month period in 2020, the project enrolled 1253 social influencers in Milwaukee-primarily ethnic and racial minorities-who regularly received and passed along messages to members of their social networks that provided advice about COVID-19 pandemic coping, economic survival, health protection, mental health, family needs, social justice and other impacts. Messages were shared by influencers with others over social media and also text messages, phone calls and conversations. Facebook social media tracking metrics objectively measured the community reach of social influencers' messages. Quantitative surveys and qualitative follow-up interviews with a subset of influencers also measured the feasibility and acceptability of the intervention. Social media monitoring metrics showed that, by the end of the project, influencers' messages reached an average of 7978 unique individuals per week and had an average of 13,894 total views per week, with more than 140,000 total cumulative organic impressions. More than half of social influencers indicated that-beyond Facebook message sharing-they shared COVID-19 prevention, care, and coping messages with social network members in conversations, phone calls and text messages. Social influencers reported that they valued having the opportunity to help community members to cope with pandemic stressors by conveying practical COVID-19 coping advice.
Assuntos
COVID-19 , Mídias Sociais , Envio de Mensagens de Texto , Humanos , Pandemias/prevenção & controle , COVID-19/epidemiologia , COVID-19/prevenção & controle , Adaptação PsicológicaRESUMO
Russia has seen one of the world's fastest-growing HIV epidemics. Transmission risk behavior, HAART-taking, and psychosocial distress of the growing population of Russian people living with HIV (PLH) in the HAART era are understudied. Participants of a systematically-recruited cross-sectional sample of 492 PLH in St. Petersburg completed measures of sexual and drug injection practices, adherence, perceived discrimination, and psychosocial distress. Since learning of their status, 58% of participants had partners of HIV-negative or unknown serostatus (mean = 5.8). About 52% reported unprotected intercourse with such partners, with 30% of acts unprotected. Greater perceived discrimination predicted lower condom use. A 47% of IDU PLH still shared needles, predicted by having no primary partner, lower education, and more frequently-encountered discrimination. Twenty-five percentage of PLH had been refused general health care, 11% refused employment, 7% fired, and 6% forced from family homes. Thirty-nine percentage of participants had probable clinical depression, 37% had anxiety levels comparable to psychiatric inpatients, and social support was low. Of the 54% of PLH who were offered HAART, 16% refused HAART regimens, and 5% of those on the therapy took less than 90% of their doses. Comprehensive community services for Russian PLH are needed to reduce AIDS-related psychosocial distress and continued HIV transmission risk behaviors. Social programs should reduce stigma and discrimination, and promote social integration of affected persons and their families.
Assuntos
Infecções por HIV/psicologia , Infecções por HIV/transmissão , Adesão à Medicação/psicologia , Assunção de Riscos , Comportamento Sexual/psicologia , Adaptação Psicológica , Adulto , Terapia Antirretroviral de Alta Atividade , Estudos Transversais , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Masculino , Saúde Mental , Uso Comum de Agulhas e Seringas , Prevalência , Fatores de Risco , Federação Russa/epidemiologia , Parceiros Sexuais , Apoio Social , Estresse Psicológico , Abuso de Substâncias por Via Intravenosa/complicações , Adulto JovemRESUMO
The DeGroot model for opinion diffusion over social networks dates back to the 1970s and models the mechanism by which information or disinformation spreads through a network, changing the opinions of the agents. Extensive research exists about the behavior of the DeGroot model and its variations over theoretical social networks; however, research on how to estimate parameters of this model using data collected from an observed network diffusion process is much more limited. Existing algorithms require large data sets that are often infeasible to obtain in public health or social science applications. In order to expand the use of opinion diffusion models to these and other applications, we developed a novel genetic algorithm capable of recovering the parameters of a DeGroot opinion diffusion process using small data sets, including those with missing data and more model parameters than observed time steps. We demonstrate the efficacy of the algorithm on simulated data and data from a social network intervention leveraging peer influence to increase willingness to take pre-exposure prophylaxis in an effort to decrease transmission of human immunodeficiency virus among Black men who have sex with men.
RESUMO
Leveraging social influence is an increasingly common strategy to change population behavior or acceptance of public health policies and interventions; however, assessing the effectiveness of these social network interventions and projecting their performance at scale requires modeling of the opinion diffusion process. We previously developed a genetic algorithm to fit the DeGroot opinion diffusion model in settings with small social networks and limited follow-up of opinion change. Here, we present an assessment of the algorithm performance under the less-than-ideal conditions likely to arise in practical applications. We perform a simulation study to assess the performance of the algorithm in the presence of ordinal (rather than continuous) opinion measurements, network sampling, and model misspecification. We found that the method handles alternate models well, performance depends on the precision of the ordinal scale, and sampling the full network is not necessary to use this method. We also apply insights from the simulation study to investigate notable features of opinion diffusion models for a social network intervention to increase uptake of pre-exposure prophylaxis (PrEP) among Black men who have sex with men (BMSM).
Assuntos
Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Minorias Sexuais e de Gênero , Algoritmos , Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Comportamentos Relacionados com a Saúde , Homossexualidade Masculina , Humanos , MasculinoRESUMO
Little is known about HIV testing among young men who have sex with men (MSM) in Southeastern European countries, nor about differences in testing by young ethnic majority and young Roma MSM, the region's most disadvantaged minority population. 271 young MSM (153 non-Roma and 118 Roma) were recruited in Sofia, Bulgaria and completed measures of HIV testing, psychosocial characteristics related to testing, sexual behavior, and substance use. While 74% of ethnic majority MSM had an HIV test (and 56% had multiple prior tests), only 4% of Roma MSM had ever been tested. Roma MSM had lower knowledge about HIV testing, perceived greater barriers and weaker social norms for testing, and held more negative testing attitudes and intentions. Although all had male partners, no Roma MSM self-identified as gay and most reported transactional sex. Efforts are urgently needed to increase HIV testing uptake by young Roma MSM.