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Cummins B, Johnson K, Schneider JA, Del Vecchio N, Moshiri N, Wertheim JO, Goyal R, Skaathun B. Leveraging social networks for identification of people with HIV who are virally unsuppressed. AIDS 2024; 38:245-254. [PMID: 37890471 PMCID: PMC10843229 DOI: 10.1097/qad.0000000000003767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 10/06/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023]
Abstract
OBJECTIVES This study investigates primary peer-referral engagement (PRE) strategies to assess which strategy results in engaging higher numbers of people with HIV (PWH) who are virally unsuppressed. DESIGN We develop a modeling study that simulates an HIV epidemic (transmission, disease progression, and viral evolution) over 6 years using an agent-based model followed by simulating PRE strategies. We investigate two PRE strategies where referrals are based on social network strategies (SNS) or sexual partner contact tracing (SPCT). METHODS We parameterize, calibrate, and validate our study using data from Chicago on Black sexual minority men to assess these strategies for a population with high incidence and prevalence of HIV. For each strategy, we calculate the number of PWH recruited who are undiagnosed or out-of-care (OoC) and the number of direct or indirect transmissions. RESULTS SNS and SPCT identified 256.5 [95% confidence interval (CI) 234-279] and 15 (95% CI 7-27) PWH, respectively. Of these, SNS identified 159 (95% CI 142-177) PWH OoC and 32 (95% CI 21-43) PWH undiagnosed compared with 9 (95% CI 3-18) and 2 (95% CI 0-5) for SPCT. SNS identified 15.5 (95% CI 6-25) and 7.5 (95% CI 2-11) indirect and direct transmission pairs, whereas SPCT identified 6 (95% CI 0-8) and 5 (95% CI 0-8), respectively. CONCLUSION With no testing constraints, SNS is the more effective strategy to identify undiagnosed and OoC PWH. Neither strategy is successful at identifying sufficient indirect or direct transmission pairs to investigate transmission networks.
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Affiliation(s)
- Breschine Cummins
- Department of Mathematical Sciences, Montana State University, Bozeman, MT
| | - Kara Johnson
- Department of Mathematical Sciences, Montana State University, Bozeman, MT
| | - John A. Schneider
- Department of Medicine, University of Chicago
- Department of Public Health Sciences, University of Chicago, Chicago, IL
| | | | | | - Joel O. Wertheim
- Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Ravi Goyal
- Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Britt Skaathun
- Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, CA, USA
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Quinn KG, Spector A, Takahashi L, Voisin DR. Conceptualizing the Effects of Continuous Traumatic Violence on HIV Continuum of Care Outcomes for Young Black Men Who Have Sex with Men in the United States. AIDS Behav 2021; 25:758-772. [PMID: 32944841 PMCID: PMC7886964 DOI: 10.1007/s10461-020-03040-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2020] [Indexed: 01/06/2023]
Abstract
The United States (US) is on track to achieve the 90-90-90 targets set forth by UNAIDS and the National HIV/AIDS strategy, yet significant racial disparities in HIV care outcomes remain, particularly for young Black men who have sex with men (YBMSM). Research has demonstrated that various types of violence are key aspects of syndemics that contribute to disparities in HIV risk. However, little research has looked collectively at cumulative violent experiences and how those might affect HIV treatment and care outcomes. Drawing on extant literature and theoretical underpinnings of syndemics, we provide a conceptual model that highlights how continuous traumatic violence experienced by YBMSM may affect HIV outcomes and contribute to racial disparities in HIV outcomes. The findings of this focused review suggest a need for research on how continuous exposure to various types of violence influence HIV prevention and treatment outcomes for young Black MSM.
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Affiliation(s)
- Katherine G Quinn
- Center for AIDS Intervention Research (CAIR), Medical College of Wisconsin, 2071 N. Summit Ave., Milwaukee, WI, 53202, USA.
| | - Antoinette Spector
- Medical College of Wisconsin, Institute for Health Equity, Milwaukee, USA
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Hotton AL, Chen YT, Schumm P, Khanna AS, Brewer R, Skaathun B, Issema RS, Ramani S, Ramachandran A, Ozik J, Fujimoto K, Harawa NT, Schneider JA. Socio-Structural and Neighborhood Predictors of Incident Criminal Justice Involvement in a Population-Based Cohort of Young Black MSM and Transgender Women. J Urban Health 2020; 97:623-634. [PMID: 32180129 PMCID: PMC7560631 DOI: 10.1007/s11524-020-00428-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Black men who have sex with men (MSM) and transgender women are disproportionately affected by criminal justice involvement (CJI) and HIV. This study recruited 618 young Black MSM and transgender women in Chicago, IL, using respondent-driven sampling between 2013 and 2014. Random effects logistic regression evaluated predictors of incident CJI over 18 months of follow-up. Controlling for respondent age, gender and sexual identity, spirituality (aOR 0.56, 95% CI 0.33-0.96), and presence of a mother figure (aOR 0.41, 95% CI 0.19-0.89) were protective against CJI. Economic hardship (financial or residential instability vs. neither aOR 2.23, 95% CI 1.10-4.51), two or more past episodes of CJI vs. none (aOR 2.66, 95% CI 1.40-5.66), and substance use (marijuana use vs. none aOR 2.79, 95% CI 1.23-6.34; other drug use vs. none aOR 4.49, 95% CI 1.66-12.16) were associated with CJI during follow-up. Research to identify and leverage resilience factors that can buffer the effects of socioeconomic marginalization may increase the effectiveness of interventions to address the socio-structural factors that increase the risk for CJI among Black MSM and transgender women. Given the intersection of incarceration, HIV and other STIs, and socio-structural stressors, criminal justice settings are important venues for interventions to reduce health inequities in these populations.
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Affiliation(s)
- Anna L Hotton
- Department of Medicine, Chicago Center for HIV Elimination, University of Chicago, 5837 S. Maryland Ave, L-038, Chicago, IL, 60637, USA.
| | - Yen-Tyng Chen
- Department of Medicine, Chicago Center for HIV Elimination, University of Chicago, 5837 S. Maryland Ave, L-038, Chicago, IL, 60637, USA
| | - Phil Schumm
- Department of Public Health Sciences, University of Chicago, Chicago, IL, USA
| | - Aditya S Khanna
- Department of Medicine, Chicago Center for HIV Elimination, University of Chicago, 5837 S. Maryland Ave, L-038, Chicago, IL, 60637, USA
| | - Russell Brewer
- Department of Medicine, Chicago Center for HIV Elimination, University of Chicago, 5837 S. Maryland Ave, L-038, Chicago, IL, 60637, USA
| | - Britt Skaathun
- Division of Infectious Diseases and Global Public Health, University of California San Diego, San Diego, CA, USA
| | - Rodal S Issema
- Department of Medicine, Chicago Center for HIV Elimination, University of Chicago, 5837 S. Maryland Ave, L-038, Chicago, IL, 60637, USA
| | - Santhoshini Ramani
- Department of Medicine, Chicago Center for HIV Elimination, University of Chicago, 5837 S. Maryland Ave, L-038, Chicago, IL, 60637, USA
| | - Arthi Ramachandran
- Department of Medicine, Chicago Center for HIV Elimination, University of Chicago, 5837 S. Maryland Ave, L-038, Chicago, IL, 60637, USA
| | - Jonathan Ozik
- Consortium for Advanced Science and Engineering, University of Chicago, Chicago, IL, USA.,Decision and Infrastructure Sciences Division, Argonne National Laboratory, Lemont, IL, USA
| | | | | | - John A Schneider
- Departments of Medicine and Public Health Sciences, Chicago Center for HIV Elimination, University of Chicago, Chicago, IL, USA
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Chen YT, Issema RS, Hotton A, Khanna AS, Ardestani BM, Schneider JA, Rudolph A. Sex Partner Behavior Variation Related to Network Position of and Residential Proximity to Sex Partners Among Young Black Men Who Have Sex with Men. AIDS Behav 2020; 24:2327-2335. [PMID: 31970580 DOI: 10.1007/s10461-020-02792-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
This analysis examines how sex behaviors are influenced by a sex partner's network bridging position and the residential proximity between the two. The study sample consisted of 437 young black men who have sex with men (YBMSM) in Chicago and their sex partners (2013-2014). Dyadic analyses that clustered on individuals using generalized estimating equations (n = 1095 relationships) were conducted to assess the associations between different HIV-related sexual behaviors and the network position of and residential proximity to a partner. The odds of group sex was higher with partners who had high network bridging, regardless of how close they lived to one another. The odds of transactional sex was higher with partners who had high network bridging and lived in a different region of the city. Sex behaviors associated with an increased risk of HIV transmission were associated with the network structural position of and residential proximity to partners among YBMSM.
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Affiliation(s)
- Yen-Tyng Chen
- Chicago Center for HIV Elimination, Chicago, USA.
- Department of Medicine, University of Chicago, 5841 S Maryland Ave, MC 5065, Chicago, IL, USA.
| | - Rodal S Issema
- Chicago Center for HIV Elimination, Chicago, USA
- Department of Medicine, University of Chicago, 5841 S Maryland Ave, MC 5065, Chicago, IL, USA
| | - Anna Hotton
- Chicago Center for HIV Elimination, Chicago, USA
- Department of Medicine, University of Chicago, 5841 S Maryland Ave, MC 5065, Chicago, IL, USA
| | - Aditya S Khanna
- Chicago Center for HIV Elimination, Chicago, USA
- Department of Medicine, University of Chicago, 5841 S Maryland Ave, MC 5065, Chicago, IL, USA
| | - Babak M Ardestani
- Chicago Center for HIV Elimination, Chicago, USA
- Department of Medicine, University of Chicago, 5841 S Maryland Ave, MC 5065, Chicago, IL, USA
| | - John A Schneider
- Chicago Center for HIV Elimination, Chicago, USA
- Department of Medicine, University of Chicago, 5841 S Maryland Ave, MC 5065, Chicago, IL, USA
- Department of Public Health Sciences, University of Chicago, Chicago, USA
| | - Abby Rudolph
- Department of Epidemiology and Biostatistics, College of Public Health, Temple University, Philadelphia, USA
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Chen YT, Issema RS, Khanna AS, Pho MT, Schneider JA. Prescription Opioid Use in a Population-Based Sample of Young Black Men Who Have Sex with Men: A Longitudinal Cohort Study. Subst Use Misuse 2019; 54:1991-2000. [PMID: 31198077 PMCID: PMC6764892 DOI: 10.1080/10826084.2019.1625400] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: Prescription opioid use (POU) among young adults is increasing. This represents a major public health concern due to the increased risks of opioid use misuse and opioid-related overdose. Limited research has examined the POU among young black men who have sex with men (YBMSM), a diverse group experiencing continued increases in HIV incidence over the past decade. Objective: This study aims to examine the prevalence and both the individual and network characteristics of POU among YBMSM. Methods: Data were from a longitudinal cohort study of 16-29 year old YBMSM (N = 514) between 2013 and 2016 in Chicago. Bivariate and multivariable associations were estimated using general estimating equations (GEE). Results: Approximately 4.2% of YBMSM reported POU in the past 12 months with a cumulative incidence rate of 4.1% over the 18-month follow-up period. YBMSM having criminal justice involvements, experiencing violence, or using any illicit drug other than marijuana in the past 12 months were more likely to report POU in the past 12 months. The presence of a mother figure, however, was associated with a decreased risk of POU in the past 12 months, while engaging in condomless anal sex with their named sexual partners was associated with an increased risk of POU in the past 12 months. Conclusions: This is one of the first studies to describe POU among a population-based sample of YBMSM. The high incidence rate of POU among YBMSM is alarming, and it underscores the need for further analysis on POU among this key population.
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Affiliation(s)
- Yen-Tyng Chen
- Chicago Center for HIV Elimination , Chicago , IL , USA.,Department of Medicine, University of Chicago , Chicago , IL , USA
| | - Rodal S Issema
- Chicago Center for HIV Elimination , Chicago , IL , USA.,Department of Medicine, University of Chicago , Chicago , IL , USA
| | - Aditya S Khanna
- Chicago Center for HIV Elimination , Chicago , IL , USA.,Department of Medicine, University of Chicago , Chicago , IL , USA
| | - Mai T Pho
- Department of Medicine, University of Chicago , Chicago , IL , USA
| | - John A Schneider
- Chicago Center for HIV Elimination , Chicago , IL , USA.,Department of Medicine, University of Chicago , Chicago , IL , USA.,Department of Public Health Sciences, University of Chicago , Chicago , IL , USA
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