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Sewak A, Lodi S, Li X, Shu D, Wen L, Mayer KH, Krakower DS, Young JG, Marcus JL. Causal Effects of Stochastic PrEP Interventions on HIV Incidence Among Men Who Have Sex With Men. Am J Epidemiol 2024; 193:6-16. [PMID: 37073419 PMCID: PMC10773485 DOI: 10.1093/aje/kwad097] [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: 06/14/2022] [Revised: 01/08/2023] [Accepted: 04/13/2023] [Indexed: 04/20/2023] Open
Abstract
Antiretroviral preexposure prophylaxis (PrEP) is highly effective in preventing human immunodeficiency virus (HIV) infection, but uptake has been limited and inequitable. Although interventions to increase PrEP uptake are being evaluated in clinical trials among men who have sex with men (MSM), those trials cannot evaluate effects on HIV incidence. Estimates from observational studies of the causal effects of PrEP-uptake interventions on HIV incidence can inform decisions about intervention scale-up. We used longitudinal electronic health record data from HIV-negative MSM accessing care at Fenway Health, a community health center in Boston, Massachusetts, from January 2012 through February 2018, with 2 years of follow-up. We considered stochastic interventions that increased the chance of initiating PrEP in several high-priority subgroups. We estimated the effects of these interventions on population-level HIV incidence using a novel inverse-probability weighted estimator of the generalized g-formula, adjusting for baseline and time-varying confounders. Our results suggest that even modest increases in PrEP initiation in high-priority subgroups of MSM could meaningfully reduce HIV incidence in the overall population of MSM. Interventions tailored to Black and Latino MSM should be prioritized to maximize equity and impact.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Julia L Marcus
- Correspondence to Dr. Julia L. Marcus, Harvard Medical School and Harvard Pilgrim Health Care Institute Boston, MA 02215 (e-mail: )
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Kaul CM, Moore BE, Kaplan-Lewis E, Casey E, Pitts RA, Pagan Pirallo P, Lim S, Kapadia F, Cohen GM, Khan M, Mgbako O. EquiPrEP: An implementation science protocol for promoting equitable access and uptake of long-acting injectable HIV pre-exposure prophylaxis (LAI-PrEP). PLoS One 2023; 18:e0291657. [PMID: 37725628 PMCID: PMC10508596 DOI: 10.1371/journal.pone.0291657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/03/2023] [Indexed: 09/21/2023] Open
Abstract
BACKGROUND Long-acting injectable HIV pre-exposure prophylaxis (LAI-PrEP) was approved by the U.S. Food and Drug Administration in December 2021. This initial phase of implementation represents a prime opportunity to ensure equitable LAI-PrEP provision to communities often underrepresented in PrEP care before disparities in access and uptake emerge. Herein, we describe the EquiPrEP Project which utilizes an equity-oriented implementation science framework to optimize LAI-PrEP rollout in an urban safety-net clinic in New York City. METHODS The primary objectives of this project are to: (1) increase LAI-PrEP initiation overall; (2) increase uptake among groups disproportionately impacted by the HIV epidemic; (3) preserve high PrEP retention while expanding use; and (4) identify barriers and facilitators to LAI-PrEP use. EquiPrEP will enroll 210 PrEP-eligible participants into LAI-PrEP care with planned follow-up for one year. We will recruit from the following priority populations: Black and/or Latine men who have sex with men, Black and/or Latine cisgender women, and transgender women and nonbinary individuals. To evaluate implementation of LAI-PrEP, we will utilize equity-focused iterations of the Reach, Effectiveness, Adoption, Implementation, Maintenance (RE-AIM) framework and the Consolidated Framework for Implementation Research (CFIR), in addition to longitudinal surveys and qualitative interviews. DISCUSSION Novel LAI-PrEP formulations carry tremendous potential to revolutionize the field of HIV prevention. Implementation strategies rooted in equity are needed to ensure that marginalized populations have access to LAI-PrEP and to address the structural factors that hinder initiation and retention in care.
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Affiliation(s)
- Christina M. Kaul
- Office of Ambulatory Care and Population Health, HIV Services, NYC Health + Hospitals, New York, New York, United States of America
- Division of Infectious Diseases and Immunology, Department of Medicine, NYU Grossman School of Medicine, New York, New York, United States of America
| | - Brandi E. Moore
- Department of Epidemiology, New York University School of Global Public Health, New York, New York, United States of America
| | - Emma Kaplan-Lewis
- Office of Ambulatory Care and Population Health, HIV Services, NYC Health + Hospitals, New York, New York, United States of America
| | - Eunice Casey
- Office of Ambulatory Care and Population Health, HIV Services, NYC Health + Hospitals, New York, New York, United States of America
| | - Robert A. Pitts
- Division of Infectious Diseases and Immunology, Department of Medicine, NYU Grossman School of Medicine, New York, New York, United States of America
- NYC Health + Hospitals/Bellevue, New York, New York, United States of America
| | - Patricia Pagan Pirallo
- Division of Infectious Diseases and Immunology, Department of Medicine, NYU Grossman School of Medicine, New York, New York, United States of America
| | - Sahnah Lim
- Department of Population Health, NYU Grossman School of Medicine, New York, New York, United States of America
| | - Farzana Kapadia
- Department of Epidemiology, New York University School of Global Public Health, New York, New York, United States of America
| | - Gabriel M. Cohen
- Office of Ambulatory Care and Population Health, HIV Services, NYC Health + Hospitals, New York, New York, United States of America
- Division of Infectious Diseases and Immunology, Department of Medicine, NYU Grossman School of Medicine, New York, New York, United States of America
- NYC Health + Hospitals/Bellevue, New York, New York, United States of America
| | - Maria Khan
- Department of Population Health, NYU Grossman School of Medicine, New York, New York, United States of America
| | - Ofole Mgbako
- Division of Infectious Diseases and Immunology, Department of Medicine, NYU Grossman School of Medicine, New York, New York, United States of America
- NYC Health + Hospitals/Bellevue, New York, New York, United States of America
- Department of Population Health, NYU Grossman School of Medicine, New York, New York, United States of America
- NYU Langone Institute for Excellence in Health Equity, NYU Grossman School of Medicine, New York, New York, United States of America
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Stojanovski K, King EJ, O'Connell S, Gallagher KS, Theall KP, Geronimus AT. Spiraling Risk: Visualizing the multilevel factors that socially pattern HIV risk among gay, bisexual & other men who have sex with men using Complex Systems Theory. Curr HIV/AIDS Rep 2023; 20:206-217. [PMID: 37486568 PMCID: PMC10403445 DOI: 10.1007/s11904-023-00664-y] [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] [Accepted: 06/23/2023] [Indexed: 07/25/2023]
Abstract
PURPOSE OF REVIEW Global disparities in HIV infection, particularly among gay, bisexual, and other men who have sex with men (GBMSM), indicate the importance of exploring the multi-level processes that shape HIV's spread. We used Complex Systems Theory and the PRISMA guidelines to conduct a systematic review of 63 global reviews to understand how HIV is socially patterned among GBMSM. The purpose was to conduct a thematic analysis of the reviews to (1) synthesize the multi-level risk factors of HIV risk, (2) categorize risk across the socioecological model, and (3) develop a conceptual model that visualizes the interrelated factors that shape GBMSMS's HIV "risk." RECENT FINDINGS We included 49 studies of high and moderate quality studies. Results indicated that GBMSM's HIV risk stems from the individual, interpersonal, and structural levels of the socioecological model. We identified a few themes that shape GBMSM's risk of HIV infection related to biomedical prevention methods; sexual and sex-seeking behaviors; behavioral prevention methods; individual-level characteristics and syndemic infections; lived experiences and interpersonal relationships; country-level income; country-level HIV prevalence; and structural stigma. The multi-level factors, in tandem, serve to perpetuate GBMSM's risk of HIV infection globally. The amalgamation of our thematic analyses from our systematic reviews of reviews suggests that the risk of HIV infection operates in an emergent, dynamic, and complex nature across multiple levels of the socioecological model. Applying complex systems theory indicates how multilevel factors create a dynamic and reinforcing system of HIV risk among GBMSM.
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Affiliation(s)
- K Stojanovski
- Department of Social, Behavioral and Population Sciences, Tulane School of Public Health & Tropical Medicine, New Orleans, USA.
| | - E J King
- Department of Health Behavior & Health Education, School of Public Health, University of Michigan, Ann Arbor, USA
| | - S O'Connell
- Department of Epidemiology, Tulane School of Public Health & Tropical Medicine, New Orleans, USA
| | - K S Gallagher
- Department of Health Policy and Management, Tulane School of Public Health & Tropical Medicine, New Orleans, USA
| | - K P Theall
- Department of Social, Behavioral and Population Sciences, Tulane School of Public Health & Tropical Medicine, New Orleans, USA
- Department of Epidemiology, Tulane School of Public Health & Tropical Medicine, New Orleans, USA
| | - A T Geronimus
- Department of Health Behavior & Health Education, School of Public Health, University of Michigan, Ann Arbor, USA
- Institute for Social Research, University of Michigan, Ann Arbor, USA
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Vahdat V, Alagoz O, Chen JV, Saoud L, Borah BJ, Limburg PJ. Calibration and Validation of the Colorectal Cancer and Adenoma Incidence and Mortality (CRC-AIM) Microsimulation Model Using Deep Neural Networks. Med Decis Making 2023; 43:719-736. [PMID: 37434445 PMCID: PMC10422851 DOI: 10.1177/0272989x231184175] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 06/05/2023] [Indexed: 07/13/2023]
Abstract
OBJECTIVES Machine learning (ML)-based emulators improve the calibration of decision-analytical models, but their performance in complex microsimulation models is yet to be determined. METHODS We demonstrated the use of an ML-based emulator with the Colorectal Cancer (CRC)-Adenoma Incidence and Mortality (CRC-AIM) model, which includes 23 unknown natural history input parameters to replicate the CRC epidemiology in the United States. We first generated 15,000 input combinations and ran the CRC-AIM model to evaluate CRC incidence, adenoma size distribution, and the percentage of small adenoma detected by colonoscopy. We then used this data set to train several ML algorithms, including deep neural network (DNN), random forest, and several gradient boosting variants (i.e., XGBoost, LightGBM, CatBoost) and compared their performance. We evaluated 10 million potential input combinations using the selected emulator and examined input combinations that best estimated observed calibration targets. Furthermore, we cross-validated outcomes generated by the CRC-AIM model with those made by CISNET models. The calibrated CRC-AIM model was externally validated using the United Kingdom Flexible Sigmoidoscopy Screening Trial (UKFSST). RESULTS The DNN with proper preprocessing outperformed other tested ML algorithms and successfully predicted all 8 outcomes for different input combinations. It took 473 s for the trained DNN to predict outcomes for 10 million inputs, which would have required 190 CPU-years without our DNN. The overall calibration process took 104 CPU-days, which included building the data set, training, selecting, and hyperparameter tuning of the ML algorithms. While 7 input combinations had acceptable fit to the targets, a combination that best fits all outcomes was selected as the best vector. Almost all of the predictions made by the best vector laid within those from the CISNET models, demonstrating CRC-AIM's cross-model validity. Similarly, CRC-AIM accurately predicted the hazard ratios of CRC incidence and mortality as reported by UKFSST, demonstrating its external validity. Examination of the impact of calibration targets suggested that the selection of the calibration target had a substantial impact on model outcomes in terms of life-year gains with screening. CONCLUSIONS Emulators such as a DNN that is meticulously selected and trained can substantially reduce the computational burden of calibrating complex microsimulation models. HIGHLIGHTS Calibrating a microsimulation model, a process to find unobservable parameters so that the model fits observed data, is computationally complex.We used a deep neural network model, a popular machine learning algorithm, to calibrate the Colorectal Cancer Adenoma Incidence and Mortality (CRC-AIM) model.We demonstrated that our approach provides an efficient and accurate method to significantly speed up calibration in microsimulation models.The calibration process successfully provided cross-model validation of CRC-AIM against 3 established CISNET models and also externally validated against a randomized controlled trial.
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Affiliation(s)
- Vahab Vahdat
- Health Economics and Outcome Research, Exact Sciences Corporation, Madison, WI, USA
| | - Oguzhan Alagoz
- Departments of Industrial & Systems Engineering and Population Health Sciences, University of Wisconsin–Madison, Madison, WI, USA
| | - Jing Voon Chen
- Health Economics and Outcome Research, Exact Sciences Corporation, Madison, WI, USA
| | - Leila Saoud
- Health Economics and Outcome Research, Exact Sciences Corporation, Madison, WI, USA
| | - Bijan J. Borah
- Division of Health Care Delivery Research, Mayo Clinic, Rochester, MN, USA
| | - Paul J. Limburg
- Health Economics and Outcome Research, Exact Sciences Corporation, Madison, WI, USA
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Schwartz J, Grimm J. Investigating the Content of #UequalsU on Twitter. HEALTH COMMUNICATION 2023; 38:1318-1326. [PMID: 34930084 DOI: 10.1080/10410236.2021.2006395] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Undetectable = Untransmittable (U = U) is the scientific fact that HIV cannot be transmitted when an individual is virally suppressed. This breakthrough discovery has the potential to greatly reduce HIV stigma and its negative effects. However, U = U is not widely known. Given that Twitter has the potential to raise awareness of health issues, the purpose of this study was to analyze the content of the #UequalsU on Twitter. The results showed that mentioning sex and mentioning love were strong predictors that a tweet would be liked and retweeted. This information could help to spread the message of U = U more widely and potentially lessen HIV stigma.
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Affiliation(s)
- Joseph Schwartz
- Department of Communication Studies, Northeastern University
| | - Josh Grimm
- Manship School of Mass Communication, Louisiana State University
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Abuelezam NN, Michel I, Marshall BD, Galea S. Accounting for historical injustices in mathematical models of infectious disease transmission: An analytic overview. Epidemics 2023; 43:100679. [PMID: 36924757 DOI: 10.1016/j.epidem.2023.100679] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 02/24/2023] [Accepted: 03/06/2023] [Indexed: 03/13/2023] Open
Abstract
Differences in infectious disease risk, acquisition, and severity arise from intersectional systems of oppression and resulting historical injustices that shape individual behavior and circumstance. We define historical injustices as distinct events and policies that arise out of intersectional systems of oppression. We view historical injustices as a medium through which structural forces affect health both directly and indirectly, and are thus important to study in the context of infectious disease disparities. In this critical analysis we aim to highlight the importance of incorporating historical injustices into mathematical models of infectious disease transmission and provide context on the methodologies to do so. We offer two illustrations of elements of model building (i.e., parameterization, validation and calibration) that can allow for a better understanding of health disparities in infectious disease outcomes. Mathematical models that do not recognize the historical forces that underlie infectious disease dynamics inevitably lead to the individualization of our focus and the recommendation of untenable individual-behavioral prescriptions to address the burden of infectious disease.
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Affiliation(s)
- Nadia N Abuelezam
- Boston College, William F. Connell School of Nursing, Chestnut Hill, MA, USA.
| | - Isaacson Michel
- Boston College, William F. Connell School of Nursing, Chestnut Hill, MA, USA.
| | - Brandon Dl Marshall
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI, USA.
| | - Sandro Galea
- Boston University, School of Public Health, Boston, MA, USA.
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Brief Report: Refusal of Daily Oral PrEP: Implementation Considerations and Reported Likelihood of Using Various HIV Prophylaxis Products in a Diverse Sample of MSM. J Acquir Immune Defic Syndr 2023; 92:212-216. [PMID: 36442153 DOI: 10.1097/qai.0000000000003134] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 11/14/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND An important subgroup of gay, bisexual, and other men who have sex with men (MSM) with behavioral indications refuse daily oral pre-exposure prophylaxis (PrEP) when recommended by a provider. Emerging HIV prophylaxis products (eg, injectable, event-driven) offer more options to MSM who refuse daily PrEP. In this article, we assess reasons for refusal and likelihood to use various products among MSM who refused PrEP. METHODS MSM who reported anal sex without condoms or PrEP and refused daily oral PrEP in the past 6 months were recruited through clinics, community venues, and online in Atlanta, Chicago, and Raleigh-Durham. Men were asked their main reason for recently refusing daily PrEP and likelihood of using various PrEP options in the future. Bivariate and multivariable regression models were used to estimate associations. RESULTS MSM (n = 93; 70% Black, 48% age 18-29 years) reported their main reason for refusing daily PrEP were potential side effects (35%), a daily pill regimen (22%), and not having enough information (18%). Reported likelihood of using PrEP products was 58% for penile gel, 54% for event-driven oral, 52% for injectable, and 50% for daily PrEP. MSM who reported daily regimen as the main reason for refusing PrEP had greater odds of likelihood to use an injectable [adjusted odds ratio (AOR) = 5.21, 95% confidence interval (CI): 1.32 to 20.52]. Younger men (18-29 vs 30+ years) had greater odds of likelihood to use condoms (AOR = 3.40, 95% CI: 1.15 to 10.04) and daily PrEP (AOR = 2.76, 95% CI: 1.06 to 7.16); there were no product preference differences by race. CONCLUSION Most men who refused daily PrEP indicated likelihood of using some form of PrEP in the future.
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Valente PK, Operario D, Rusley J, Bauermeister JA, Biello KB. The need for a health equity framework in next-generation pre-exposure prophylaxis implementation. Lancet HIV 2023; 10:e266-e268. [PMID: 36848924 DOI: 10.1016/s2352-3018(23)00009-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/19/2022] [Accepted: 01/11/2023] [Indexed: 03/01/2023]
Abstract
Pre-exposure prophylaxis (PrEP) is highly effective for prevention of HIV transmission and plays an important role in efforts to end the HIV epidemic within the next decade. However, disparities in access to PrEP might be fuelling disparities in the burden of HIV in the USA. The advent of next-generation PrEP formulations that do not involve daily regimens (eg, long-acting cabotegravir) holds potential to facilitate medication adherence, but if the roll-out of these formulations does not consider disparities in access, HIV disparities might be further widened. On the basis of US epidemiological data and informed by the Theory of Fundamental Causes of Health Disparities, we propose an equity-promoting framework to guide the implementation of daily oral and next-generation PrEP. Multilevel efforts to bolster equity in PrEP care include generating demand for next-generation PrEP formulations among marginalised groups, expanding the availability of health services providing oral and next-generation PrEP, and addressing structural and financial barriers to HIV prevention care. The aim of these strategies is to realise the potential of next-generation PrEP to provide people at high risk with effective options to prevent HIV acquisition, thereby helping to reduce both overall HIV transmission and health disparities in the USA.
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Affiliation(s)
- Pablo K Valente
- Department of Allied Health Sciences, University of Connecticut, Waterbury, CT, USA; Department of Behavioral and Social Sciences, Brown University School of Public Health, Providence, RI, USA.
| | - Don Operario
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Jack Rusley
- Division of Adolescent Medicine, Department of Pediatrics, Alpert Medical School of Brown University, Providence, RI, USA; Department of Health Services, Policy, and Practice, Brown University School of Public Health, Providence, RI, USA
| | - José A Bauermeister
- Department of Family and Community Health, University of Pennsylvania, Philadelphia, PA, USA
| | - Katie B Biello
- Department of Behavioral and Social Health Sciences, Brown University School of Public Health, Providence, RI, USA; Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA; The Fenway Institute, Fenway Health, Boston, MA, USA
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Pre-exposure prophylaxis in the era of emerging methods for men who have sex with men in the USA: the HIV Prevention Cycle of Care model. Lancet HIV 2023; 10:e134-e142. [PMID: 36525980 DOI: 10.1016/s2352-3018(22)00309-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/22/2022] [Accepted: 10/17/2022] [Indexed: 12/15/2022]
Abstract
Expanding on previous work, we present an HIV Prevention Cycle of Care model to facilitate understanding of the complexity of issues involved in pre-exposure prophylaxis implementation for gay, bisexual, and other men who have sex with men (MSM) in the USA, including individual, client-provider, and overarching issues such as health equity, stigma, and prevention nomenclature. The HIV prevention cycle of care applies to MSM who test negative for HIV. The Prevention Cycle of Care model includes seven steps: prevention knowledge, prevention self-awareness and preferences, prevention motivation, health-care access and cost, provider issues, adherence and persistence, and periodic reassessment and adjustment. HIV prevention is complex in an era of emerging multiple modalities, and more research is needed to successfully implement pre-exposure prophylaxis options over time and across diverse communities of MSM who are sexually active.
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Quinn KG, Dickson-Gomez J, Craig A, John SA, Walsh JL. Intersectional Discrimination and PrEP uSe Among Young Black Sexual Minority Individuals: The Importance of Black LGBTQ Communities and Social Support. AIDS Behav 2023; 27:290-302. [PMID: 35788926 PMCID: PMC9255535 DOI: 10.1007/s10461-022-03763-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2022] [Indexed: 01/24/2023]
Abstract
Intersectional stigma and discrimination have increasingly been recognized as impediments to the health and well-being of young Black sexual minority men (YBSMM) and transgender women (TW). However, little research has examined the relationship between intersectional discrimination and HIV pre-exposure prophylaxis (PrEP) outcomes. This study with 283 YBSMM and TW examines the relationship between intersectional discrimination and current PrEP use and likelihood of future PrEP use. Path models were used to test associations between intersectional discrimination, resilience and social support, and PrEP use and intentions. Individuals with higher levels of anticipated discrimination were less likely to be current PrEP users (OR = 0.59, p = .013), and higher levels of daily discrimination were associated with increased likelihood of using PrEP in the future (B = 0.48 (0.16), p = .002). Greater discrimination was associated with higher levels of resilience, social support, and connection to the Black LGBTQ community. Social support mediated the effect of day-to-day discrimination on likelihood of future PrEP use. Additionally, there was a significant and negative indirect effect of PrEP social concerns on current PrEP use via Black LGBTQ community connectedness. The results of this study highlight the complexity of the relationships between discrimination, resilience, and health outcomes.
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Affiliation(s)
- Katherine G Quinn
- Center for AIDS Intervention Research, Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.
- Department of Psychiatry and Behavioral Medicine, CAIR Medical College of Wisconsin, 2071 N. Summit Ave, 53202, Milwaukee, WI, USA.
| | - Julia Dickson-Gomez
- Institute for Health and Equity, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Amber Craig
- Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Steven A John
- Center for AIDS Intervention Research, Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Jennifer L Walsh
- Center for AIDS Intervention Research, Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
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Beer L, Tie Y, Dasgupta S, McManus T, Smith DK, Shouse RL. Trends in preexposure prophylaxis use among sex partners as reported by persons with HIV - United States, May 2015-June 2020. AIDS 2022; 36:2161-2169. [PMID: 36382435 PMCID: PMC11057891 DOI: 10.1097/qad.0000000000003366] [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: 11/17/2022]
Abstract
OBJECTIVE To estimate trends in the proportion of sexually active U.S. adults with HIV (PWH) reporting an HIV-discordant sexual partner taking preexposure prophylaxis (PrEP) and proportion of partners taking PrEP. DESIGN The Medical Monitoring Project is a complex sample survey of U.S. adults with diagnosed HIV. METHODS We used annual cross-sectional data collected during June 2015-May 2020 to estimate the annual percentage change (EAPC), overall and by selected characteristics, in reported partner PrEP use among PWH with HIV-discordant partners (N = 8707) and reported PrEP use among these partners (N = 15 844). RESULTS The proportion of PWH reporting PrEP use by one or more HIV-discordant sex partner rose 19.5% annually (11.3 to 24.4%). The prevalence rose from 6.0 to 17.4% (EAPC, 25.8%) among Black PWH, 10.1 to 26.0% (EAPC, 19.5%) among Hispanic/Latino PWH, and 20.8 to 34.6% (EAPC, 16.3%) among White PWH. Among MSM with HIV, the prevalence increased from 9.6 to 32.6% (EAPC, 28.2%) among Black MSM, 16.6 to 36.0% (EAPC, 15.6%) among Hispanic/Latino MSM, and 24.9 to 44.1% (EAPC, 17.9%) among White MSM. Among HIV-discordant sex partners, the proportion reported to be taking PrEP increased 21.1% annually (7.8 to 18.8%). Reported PrEP use rose from 4.9 to 14.2% (EAPC, 29.9%) among Black partners, 6.5 to 16.8% (EAPC, 20.3%) among Hispanic/Latino partners, and 12.7 to 26.1% (EAPC, 17.0%) among White partners. CONCLUSIONS One in five HIV-discordant sexual partners of PWH was reported to be taking PrEP. PrEP use rose among all examined populations, although the increases did not eliminate disparities in PrEP use.
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Affiliation(s)
- Linda Beer
- Division of HIV Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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12
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Spillover benefit of pre-exposure prophylaxis for HIV prevention: evaluating the importance of effect modification using an agent-based model. Epidemiol Infect 2022; 150:e192. [PMID: 36305040 PMCID: PMC9723998 DOI: 10.1017/s0950268822001650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
We developed an agent-based model using a trial emulation approach to quantify effect measure modification of spillover effects of pre-exposure prophylaxis (PrEP) for HIV among men who have sex with men (MSM) in the Atlanta-Sandy Springs-Roswell metropolitan area, Georgia. PrEP may impact not only the individual prescribed, but also their partners and beyond, known as spillover. We simulated a two-stage randomised trial with eligible components (≥3 agents with ≥1 HIV+ agent) first randomised to intervention or control (no PrEP). Within intervention components, agents were randomised to PrEP with coverage of 70%, providing insight into a high PrEP coverage strategy. We evaluated effect modification by component-level characteristics and estimated spillover effects on HIV incidence using an extension of randomisation-based estimators. We observed an attenuation of the spillover effect when agents were in components with a higher prevalence of either drug use or bridging potential (if an agent acts as a mediator between ≥2 connected groups of agents). The estimated spillover effects were larger in magnitude among components with either higher HIV prevalence or greater density (number of existing partnerships compared to all possible partnerships). Consideration of effect modification is important when evaluating the spillover of PrEP among MSM.
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Hamilton DT, Agutu C, Babigumira JB, van der Elst E, Hassan A, Gichuru E, Mugo P, Farquhar C, Ndung'u T, Sirengo M, Chege W, Goodreau SM, Elder A, Sanders EJ, Graham SM. Modeling the Impact of HIV-1 Nucleic Acid Testing Among Symptomatic Adult Outpatients in Kenya. J Acquir Immune Defic Syndr 2022; 90:553-561. [PMID: 35510854 PMCID: PMC9259037 DOI: 10.1097/qai.0000000000003013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 04/07/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND Up to 69% of adults who acquire HIV in Kenya seek care before seroconversion, providing an important opportunity for early diagnosis and treatment. The Tambua Mapema Plus (TMP) trial tested a combined HIV-1 nucleic acid testing, linkage, treatment, and partner notification intervention for adults aged 18-39 years with symptoms of acute HIV infection presenting to health facilities in coastal Kenya. We estimated the potential impact of TMP on the Kenyan HIV epidemic. METHODS We developed an agent-based network model of HIV-1 transmission using TMP data and Kenyan statistics to estimate potential population-level impact of targeted facility-based testing over 10 years. Three scenarios were modeled: standard care [current use of provider-initiated testing and counseling (PITC)], standard HIV rapid testing scaled to higher coverage obtained in TMP (scaled-up PITC), and the TMP intervention. RESULTS Standard care resulted in 90.7% of persons living with HIV (PLWH) knowing their status, with 67.5% of those diagnosed on treatment. Scaled-up PITC resulted in 94.4% of PLWH knowing their status and 70.4% of those diagnosed on treatment. The TMP intervention achieved 97.5% of PLWH knowing their status and 80.6% of those diagnosed on treatment. The percentage of infections averted was 1.0% (95% simulation intervals: -19.2% to 19.9%) for scaled-up PITC and 9.4% (95% simulation intervals: -8.1% to 24.5%) for TMP. CONCLUSION Our study suggests that leveraging new technologies to identify acute HIV infection among symptomatic outpatients is superior to scaled-up PITC in this population, resulting in >95% knowledge of HIV status, and would reduce new HIV infections in Kenya.
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Affiliation(s)
- Deven T. Hamilton
- Center for Studies in Demography and Ecology, University of Washington, Seattle, WA
| | - Clara Agutu
- KEMRI—Wellcome Trust Research Programme, Kilifi, Kenya;
| | | | | | - Amin Hassan
- KEMRI—Wellcome Trust Research Programme, Kilifi, Kenya;
| | | | - Peter Mugo
- KEMRI—Wellcome Trust Research Programme, Kilifi, Kenya;
| | - Carey Farquhar
- Medicine, Global Health, and Epidemiology, University of Washington, Seattle, WA
| | | | - Martin Sirengo
- National AIDS and STI Control Programme, Nairobi, Kenya;
| | - Wairimu Chege
- National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD
| | | | - Adam Elder
- Biostatistics, University of Washington, Seattle, WA; and
| | - Eduard J. Sanders
- KEMRI—Wellcome Trust Research Programme, Kilifi, Kenya;
- University of Oxford, Headington, United Kingdom.
| | - Susan M. Graham
- Medicine, Global Health, and Epidemiology, University of Washington, Seattle, WA
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Nguyen A, Drabo EF, Garland WH, Moucheraud C, Holloway IW, Leibowitz A, Suen SC. Are Unequal Policies in Pre-Exposure Prophylaxis Uptake Needed to Improve Equality? An Examination Among Men Who Have Sex with Men in Los Angeles County. AIDS Patient Care STDS 2022; 36:300-312. [PMID: 35951446 PMCID: PMC9419964 DOI: 10.1089/apc.2022.0011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Racial and ethnic minority men who have sex with men (MSM) are disproportionately affected by HIV/AIDS in Los Angeles County (LAC), an important epicenter in the battle to end HIV. We examine tradeoffs between effectiveness and equality of pre-exposure prophylaxis (PrEP) allocation strategies among different racial and ethnic groups of MSM in LAC and provide a framework for quantitatively evaluating disparities in HIV outcomes. To do this, we developed a microsimulation model of HIV among MSM in LAC using county epidemic surveillance and survey data to capture demographic trends and subgroup-specific partnership patterns, disease progression, patterns of PrEP use, and patterns for viral suppression. We limit analysis to MSM, who bear most of the burden of HIV/AIDS in LAC. We simulated interventions where 3000, 6000, or 9000 PrEP prescriptions are provided annually in addition to current levels, following different allocation scenarios to each racial/ethnic group (Black, Hispanic, or White). We estimated cumulative infections averted and measures of equality, after 15 years (2021-2035), relative to base case (no intervention). By comparing allocation strategies on the health equality impact plane, we find that, of the policies evaluated, targeting PrEP preferentially to Black individuals would result in the largest reductions in incidence and disparities across the equality measures we considered. This result was consistent over a range of PrEP coverage levels, demonstrating that there are "win-win" PrEP allocation strategies that do not require a tradeoff between equality and efficiency.
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Affiliation(s)
- Anthony Nguyen
- Daniel J. Epstein Department of Industrial and Systems Engineering, University of Southern California Viterbi School of Engineering, Los Angeles, California, USA.,Address correspondence to: Anthony Nguyen, MEng, Daniel J. Epstein Department of Industrial and Systems Engineering, University of Southern California Viterbi School of Engineering, 3715 McClintock Avenue, GER 240, Los Angeles, CA 90089-0001, USA
| | - Emmanuel Fulgence Drabo
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Wendy H. Garland
- Division of HIV and STD Programs, Los Angeles County Department of Public Health, Los Angeles, California, USA
| | - Corrina Moucheraud
- Department of Health Policy and Management, University of California Los Angeles Fielding School of Public Health, Los Angeles, California, USA
| | - Ian W. Holloway
- Department of Social Welfare, University of California Los Angeles Luskin School of Public Affairs, Los Angeles, California, USA
| | - Arleen Leibowitz
- Department of Public Policy, University of California Los Angeles Luskin School of Public Affairs, Los Angeles, California, USA
| | - Sze-chuan Suen
- Daniel J. Epstein Department of Industrial and Systems Engineering, University of Southern California Viterbi School of Engineering, Los Angeles, California, USA
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15
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Wood SM, Meanley S, Bonett S, Torres ME, Watson DL, Williams JL, Brady KA, Bauermeister JA. Strengthening HIV Prevention Services Through an Implementation Science Approach: Perspectives From the HIV Testers in Philadelphia. J Acquir Immune Defic Syndr 2022; 90:S90-S97. [PMID: 35703760 PMCID: PMC9204788 DOI: 10.1097/qai.0000000000002969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 01/26/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Strengthening HIV prevention services is a key priority of the Ending the HIV Epidemic plan. Informed by the Consolidated Framework for Implementation Research, we examined HIV testers' perceived barriers and facilitators to implementing HIV prevention services, including testers' strengths and weaknesses; enabling factors within the inner and outer settings; and willingness to adopt potential implementation strategies. METHODS In 2019, the Penn Center for AIDS Research (CFAR) partnered with the Philadelphia Department of Public Health (PDPH) to examine system-level challenges and opportunities experienced by PDPH-funded HIV testers (individuals conducting HIV testing) in Philadelphia. We recruited HIV testers to complete 2 web surveys (n ≈ 40 each) and in-depth interviews (n = 11). RESULTS Testers self-reported high HIV testing self-efficacy and competence, despite identifying gaps in their knowledge of STI testing, reporting moderate willingness to recommend pre-exposure prophylaxis, and having insufficient cultural competency when working with priority populations. Testers indicated that educational materials and policies within their agencies might require realignment to affirm sexual and gender minority clients. In qualitative interviews, testers noted challenges to implementing PDPH priorities because limited funding fueled competition between local agencies, deterred interagency partnerships, and limited their ability to serve key populations locally. DISCUSSION HIV testers are critical partners in addressing agency-level barriers to HIV prevention service provision through multilevel implementation strategies. In partnership with PDPH, we will create and implement a train-the-trainers program consisting of skill-building activities, technical assistance, and capacity-building for all agency personnel to address missed opportunities in HIV prevention. These activities will reinforce scalability and sustainability of PDPH-supported HIV prevention programs.
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Affiliation(s)
- Sarah M Wood
- Craig Dalsimer Division of Adolescent Medicine, Children's Hospital of Philadelphia, Philadelphia, PA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Steven Meanley
- School of Nursing, University of Pennsylvania, Philadelphia, PA
| | - Stephen Bonett
- School of Nursing, University of Pennsylvania, Philadelphia, PA
| | - Mary E Torres
- Philadelphia Department of Public Health, Philadelphia, PA; and
| | - Dovie L Watson
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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Boyd DT, Abubakari GM, Turner D, Ramos SR, Hill MJ, Nelson LE. The Influence of Family Bonding, Support, Engagement in Healthcare, on PrEP Stigma among Young Black and Latino Men Who Have Sex with Men: A Path Analysis. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9030330. [PMID: 35327703 PMCID: PMC8947403 DOI: 10.3390/children9030330] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 02/04/2023]
Abstract
This study employs the ecodevelopmental theory to examine the influence of mother and father bonding, family engagement in healthcare, and family support on PrEP stigma among BLMSM. We used a cross-sectional sample from wave five of the Healthy Young Men (HYM) study, with a survey sample of 399 participants aged 16−24 years. We conducted two-path analyses to test multiple hypotheses: (1) mother/father bonding is associated with an increase in family engagement in healthcare; (2) family engagement in healthcare is associated with family social support; and (3) family social support is associated with PrEP stigma. Family social support was negatively correlated with PrEP stigma (r = −0.15; p < 0.001). The findings show that families either led by a Black/Latino father or mother have a significant impact on the sexual health-seeking behavior of BLMSM and their perception of HIV and PrEP.
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Affiliation(s)
- Donte T. Boyd
- College of Social Work, The Ohio State University, Columbus, OH 43210, USA
- Center for Interdisciplinary Research on AIDS, Yale University, New Haven, CT 06510, USA; (G.M.A.); (D.T.)
- Correspondence:
| | - Gamji M’Rabiu Abubakari
- Center for Interdisciplinary Research on AIDS, Yale University, New Haven, CT 06510, USA; (G.M.A.); (D.T.)
- School of Public Health, Yale University, New Haven, CT 06510, USA
| | - DeAnne Turner
- Center for Interdisciplinary Research on AIDS, Yale University, New Haven, CT 06510, USA; (G.M.A.); (D.T.)
- College of Nursing, University of South Florida, Tampa, FL 33612, USA
| | - S. Raquel Ramos
- Center for Interdisciplinary Research on AIDS, Yale University, New Haven, CT 06510, USA; (G.M.A.); (D.T.)
- School of Nursing, Yale University, New Haven, CT 06477, USA; (S.R.R.); (L.E.N.)
| | - Mandy J. Hill
- McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA;
| | - LaRon E. Nelson
- Center for Interdisciplinary Research on AIDS, Yale University, New Haven, CT 06510, USA; (G.M.A.); (D.T.)
- School of Nursing, Yale University, New Haven, CT 06477, USA; (S.R.R.); (L.E.N.)
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17
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Greene GJ, Reidy E, Felt D, Marro R, Johnson AK, Phillips G, Green E, Stonehouse P. Implementation and evaluation of patient navigation in Chicago: Insights on addressing the social determinants of health and integrating HIV prevention and care services. EVALUATION AND PROGRAM PLANNING 2022; 90:101977. [PMID: 34373116 DOI: 10.1016/j.evalprogplan.2021.101977] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 02/12/2021] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
Patient navigation is a primary element in linkage to HIV pre-exposure prophylaxis (PrEP) care and linkage to or re-engagement in HIV care, depending on the HIV status of the individual. However, there is a dearth of literature describing navigation services in these areas. In the context of Chicago Project PrIDE, this project conducted process and implementation evaluations with eight agencies leading demonstration projects to address these gaps. The evaluation team conducted semi-structured, individual interviews with agency staff (N = 20) assessing navigation implementation and fit, as well as project successes and challenges. Additionally, agency staff collected patient surveys (N = 300) assessing services provided, service quality, and satisfaction. The interview transcripts were coded and analyzed thematically and descriptive analyses were performed on the survey data. Analyses indicated that screening for social determinants of health, providing healthcare engagement guidance, and providing service referrals were frequently cited navigation activities. Most staff members indicated that navigation fits well within their agencies, and that limited staff and clinic capacity were often barriers to navigation. Patient navigation to support engagement in HIV prevention and care services is critical due to the extensive support provided by navigators to address social determinants of health impacting HIV disparity populations.
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Affiliation(s)
- George J Greene
- Northwestern University Feinberg School of Medicine, 625 N. Michigan Ave., Chicago, IL, 60611, USA.
| | - Emma Reidy
- Northwestern University Feinberg School of Medicine, 625 N. Michigan Ave., Chicago, IL, 60611, USA
| | - Dylan Felt
- Northwestern University Feinberg School of Medicine, 625 N. Michigan Ave., Chicago, IL, 60611, USA
| | - Rachel Marro
- Northwestern University Feinberg School of Medicine, 625 N. Michigan Ave., Chicago, IL, 60611, USA
| | - Amy K Johnson
- Northwestern University Feinberg School of Medicine, 625 N. Michigan Ave., Chicago, IL, 60611, USA; Ann & Robert H. Lurie Children's Hospital of Chicago, The Potocsnak Family Division of Adolescent and Young Adult Medicine, 225 E. Chicago Ave., Box 161, Chicago, IL, 60611, USA
| | - Gregory Phillips
- Northwestern University Feinberg School of Medicine, 625 N. Michigan Ave., Chicago, IL, 60611, USA
| | - Evelyn Green
- Chicago Department of Public Health, 333 S. State St., Suite 200, Chicago, IL, 60604, USA
| | - Patrick Stonehouse
- Chicago Department of Public Health, 333 S. State St., Suite 200, Chicago, IL, 60604, USA
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18
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Grov C, Westmoreland DA, D’Angelo AB, Pantalone DW. How Has HIV Pre-Exposure Prophylaxis (PrEP) Changed Sex? A Review of Research in a New Era of Bio-behavioral HIV Prevention. JOURNAL OF SEX RESEARCH 2021; 58:891-913. [PMID: 34180743 PMCID: PMC9729849 DOI: 10.1080/00224499.2021.1936440] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
In 2012, the U.S. FDA approved the first drug for use as HIV Pre-Exposure Prophylaxis (PrEP), which is nearly 99% effective when taken as prescribed. Although the manifest function of PrEP is to prevent HIV infection in the event of exposure, the drug has also had a significant impact on various facets of sexuality. In this review, we focus on research that emerged in the near decade since PrEP's approval, with a specific focus on the ways in which different elements of sex and sexuality have been impacted by gay, bisexual, and other men who have sex with men (GBMSM), cisgender women, and transgender individuals. We highlight evidence showing how PrEP has enhanced sexual self-esteem, improved sexual pleasure, reduced sexual anxiety, and has increased sexual agency for those taking it. For many, PrEP also serves as a gateway to improve routine health and increase sexual health-care utilization. Additionally, we review the question of whether PrEP is associated with increased sexual risk taking (i.e. risk compensation), and note that, although some data are mixed, PrEP is not intended as an intervention to reduce condomless anal sex or STIs: it aims to prevent HIV. Finally, our review highlights that, although the volume of research on PrEP among GBMSM is robust, it is underdeveloped for cisgender women and transgender populations and insufficient for inclusion in such a review for cisgender heterosexual men was. PrEP research with these populations is an important direction for future research. Finally, from 2012 to 2019, a single PrEP formulation and delivery method was FDA approved (oral emtricitabine/tenofovir disoproxil fumarate). As additional drug formulations (ie.g., emtricitabine/tenofovir alafenamide) and delivery methods (e.g., microbiocides, vaginal ring, injectable) come to market, it will be important to examine how these, too, impact the spectrum of sexuality.
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Affiliation(s)
- Christian Grov
- Department of Community Health and Social Sciences, CUNY Graduate School of Public Health and Health Policy, New York, NY
- CUNY Institute for Implementation Science in Population Health, New York, NY
| | | | - Alexa B. D’Angelo
- Department of Community Health and Social Sciences, CUNY Graduate School of Public Health and Health Policy, New York, NY
- CUNY Institute for Implementation Science in Population Health, New York, NY
| | - David W. Pantalone
- Department of Psychology, University of Massachusetts Boston
- The Fenway Institute, Fenway Health, Boston, MA
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19
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Schumacher CM, Tao X, Chandran A, Fields E, Price A, Greenbaum A, Jennings JM. Reaching Those Most at Risk for HIV Acquisition: Evaluating Racial/Ethnic Disparities in the Preexposure Prophylaxis Care Continuum in Baltimore City, Maryland. J Acquir Immune Defic Syndr 2021; 87:1145-1153. [PMID: 33883471 PMCID: PMC9306005 DOI: 10.1097/qai.0000000000002712] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 02/25/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Reducing HIV incidence requires addressing persistent racial/ethnic disparities in HIV burden. Our goal was to evaluate preexposure prophylaxis (PrEP) delivery, overall and relative to community need, among 7 clinical sites participating in a health department-led demonstration project to increase PrEP in Baltimore city, MD. METHODS PrEP care continuum stages (screened, indicated, referred, linked, evaluated, prescribed) were examined among HIV-negative individuals receiving services at participating sites between September 30, 2015 and September 29, 2019. Community need was defined using information on new HIV diagnoses (2016-2018). Differences in care continuum progression by demographics/priority population and comparison of demographic compositions between care continuum stages and new HIV diagnoses were examined using modified Poisson regression and χ2 tests, respectively. RESULTS Among 25,886 PrEP-screened individuals, the majority were non-Hispanic (NH) black (81.1%, n = 20,998), cisgender male (61.1%, n = 15,825), and heterosexual (86.7%, n = 22,452). Overall, 31.1% (n = 8063) were PrEP-indicated; among whom, 56.8% (n = 4578), 15.6% (n = 1250), 10.8% (n = 868), and 9.0% (n = 722) were PrEP-referred, linked, evaluated, and prescribed, respectively. Among 2870 men who have sex with men (MSM), 18.7% (n = 538) were PrEP-prescribed. Across all groups, the highest attrition was between PrEP-referred and PrEP-linked. NH-black race (vs. NH-white) was independently associated with lower likelihood of PrEP prescription (aPR, 0.89; 95% confidence interval, 0.81 to 0.98 controlling for age/gender). Relative to the demographic composition of new HIV diagnoses, fewer NH-blacks (80.2% vs. 54.3%) and more NH-whites (10.7% vs. 30.3%) and MSM were PrEP prescribed (55.2% vs. 74.5%). CONCLUSIONS This project showed promise delivering PrEP referrals and prescriptions overall and to MSM. Substantial improvement is needed to improve linkage overall and to decrease disparities in PrEP prescriptions among NH-blacks. Future work should focus on addressing service gaps that hinder PrEP utilization.
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Affiliation(s)
- Christina M Schumacher
- Department of Pediatrics, Center for Child and Community Health Research, Johns Hopkins School of Medicine, Baltimore, MD
| | - Xueting Tao
- Department of Pediatrics, Center for Child and Community Health Research, Johns Hopkins School of Medicine, Baltimore, MD
| | - Aruna Chandran
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD; and
| | - Errol Fields
- Department of Pediatrics, Center for Child and Community Health Research, Johns Hopkins School of Medicine, Baltimore, MD
| | | | | | - Jacky M Jennings
- Department of Pediatrics, Center for Child and Community Health Research, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD; and
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20
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Biello KB, Mimiaga MJ, Valente PK, Saxena N, Bazzi AR. The Past, Present, and Future of PrEP implementation Among People Who Use Drugs. Curr HIV/AIDS Rep 2021; 18:328-338. [PMID: 33907971 PMCID: PMC8286349 DOI: 10.1007/s11904-021-00556-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2021] [Indexed: 02/05/2023]
Abstract
PURPOSE OF REVIEW Recent HIV outbreaks among people who use drugs (PWUD) necessitate additional HIV prevention tools. Pre-exposure prophylaxis (PrEP) is highly efficacious yet uptake among PWUD remains exceedingly low. To address multilevel, complex barriers to PrEP use among PWUD, a range of intervention strategies are needed. RECENT FINDINGS The literature on interventions to optimize PrEP use among PWUD is nascent, comprising small pilots and demonstration projects in early phases of intervention development. Initial studies suggest that structural, healthcare, interpersonal, and individual-level interventions can improve PrEP use for PWUD, and a number of efficacy trials are underway. Future studies are needed to optimize the use of new PrEP modalities (e.g., injectable PrEP), simultaneously target multilevel challenges to PrEP use, and evaluate the integration of PrEP into other service settings and substance use treatment modalities.
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Affiliation(s)
- Katie B Biello
- Department of Behavioral and Social Sciences, Brown University School of Public Health, Providence, RI, USA.
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA.
- Center for Health Promotion and Health Equity, Brown University, Providence, RI, USA.
- The Fenway Institute, Fenway Health, Boston, MA, USA.
| | - Matthew J Mimiaga
- The Fenway Institute, Fenway Health, Boston, MA, USA
- Department of Epidemiology, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
- Department of Psychiatry & Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
- Center for LGBTQ Advocacy, Research, and Health, University of California Los Angeles, Los Angeles, CA, USA
| | - Pablo K Valente
- Department of Behavioral and Social Sciences, Brown University School of Public Health, Providence, RI, USA
- Center for Health Promotion and Health Equity, Brown University, Providence, RI, USA
| | - Nimish Saxena
- The Fenway Institute, Fenway Health, Boston, MA, USA
| | - Angela R Bazzi
- Department of Community Health Sciences, Boston University School of Public Health, Boston, MA, USA
- Herbert Wertheim School of Public Health and Human Longevity Science, University of California San Diego, San Diego, CA, USA
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21
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Awareness and acceptability of HIV pre-exposure prophylaxis (PrEP) among students at two historically Black universities (HBCU): a cross-sectional survey. BMC Public Health 2021; 21:943. [PMID: 34006245 PMCID: PMC8132367 DOI: 10.1186/s12889-021-10996-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/04/2021] [Indexed: 12/02/2022] Open
Abstract
Background Despite young African American adults (ages 18–24) being among the highest risk groups for HIV infection, little is known about their awareness of HIV pre-exposure prophylaxis (PrEP) – a once daily pill shown to be > 90% effective in preventing HIV. To explore awareness and acceptability of PrEP among college students in this demographic, we conducted a survey of attendees at two large historically Black universities (HBCU) in North Carolina. Methods We administered a 14-item questionnaire to students at two HBCUs in North Carolina between February and April 2018. Questions were formatted in a yes/no or multiple choice format. Questionnaire items specifically addressed PrEP awareness and acceptability. Surveys were administered to students at a campus health fair and while transiting the campus student union via iPad. Response to all questions was optional. We fit a logistic regression model to determine association of key demographic determinants with PrEP acceptability and awareness. Statistical analyses were conducted using SAS 9.4 (SAS, Cary, NC). Results Overall, 210 students participated in the survey, of which 60 completed all survey items as presented. The survey cohort was 75% female, 89% heterosexual and 39% freshmen. The mean age of respondents was 19.8 years (SD: 1.8). Fifty-two percent of survey respondents reported that they were aware of PrEP prior to the time of survey administration. Only 3% of respondents reported that they were on PrEP. The most common sources of information on PrEP were campus health services (24%) and non-social media advertising (15%). Of respondents who were aware of PrEP, 61% reported that they had heard about in the 6 months prior to survey administration, while only 19% say they were aware of it for more than a year. Regarding acceptability of PrEP, 58% of respondents reported that they would take a once a day pill for HIV if they were at risk. Our logistic regression analysis found no statistically significant associations between key demographic factors and PrEP awareness. However, persons who perceived themselves to be at risk for HIV acquisition were more likely to find once daily oral PrEP (relative risk 2.66 (95% CI 1.31–5.42)) as an acceptable prevention strategy than the rest of the survey cohort. Conclusions African American HBCU students are becoming aware of PrEP, and generally perceive the intervention as acceptable and worth consideration. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-021-10996-2.
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Khanna AS, Edali M, Ozik J, Collier N, Hotton A, Skwara A, Ardestani BM, Brewer R, Fujimoto K, Harawa N, Schneider JA. Projecting the number of new HIV infections to formulate the "Getting to Zero" strategy in Illinois, USA. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2021; 18:3922-3938. [PMID: 34198418 PMCID: PMC8281377 DOI: 10.3934/mbe.2021196] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
OBJECTIVES Getting to Zero (GTZ) initiatives focus on expanding use of antiretroviral treatment (ART) and pre-exposure prophylaxis (PrEP) to eliminate new HIV infections. Computational models help inform policies for implementation of ART and PrEP continuums. Such models, however, vary in their design, and may yield inconsistent predictions. Using multiple approaches can help assess the consistency in results obtained from varied modeling frameworks, and can inform optimal implementation strategies. METHODS A study using three different modeling approaches is conducted. Two approaches use statistical time series analysis techniques that incorporate temporal HIV incidence data. A third approach uses stochastic stimulation, conducted using an agent-based network model (ABNM). All three approaches are used to project HIV incidence among a key population, young Black MSM (YBMSM), over the course of the GTZ implementation period (2016-2030). RESULTS All three approaches suggest that simultaneously increasing PrEP and ART uptake is likely to be more effective than increasing only one, but increasing ART and PrEP by 20% points may not eliminate new HIV infections among YBMSM. The results further suggest that a 20% increase in ART is likely to be more effective than a 20% increase in PrEP. All three methods consistently project that increasing ART and PrEP by 30% simultaneously can help reach GTZ goals. CONCLUSIONS Increasing PrEP and ART uptake by about 30% might be necessary to accomplish GTZ goals. Such scale-up may require addressing psychosocial and structural barriers to engagement in HIV and PrEP care continuums. ABNMs and other flexible modeling approaches can be extended to examine specific interventions that address these barriers and may provide important data to guide the successful intervention implementation.
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Affiliation(s)
- Aditya Subhash Khanna
- Center for Alcohol and Addiction Studies, Brown University, Providence RI USA
- Department of Behavioral and Social Sciences, Brown University School of Public Health, Providence RI USA
| | - Mert Edali
- Chicago Center for HIV Elimination, The University of Chicago, Chicago, IL, USA
- Department of Medicine, The University of Chicago, Chicago, IL, USA
- Department of Industrial Engineering, Yildiz Technical University, Besiktas, Istanbul 34349, Turkey
| | - Jonathan Ozik
- Decision and Infrastructure Sciences Division, Argonne National Laboratory, Lemont, IL, USA
| | - Nicholson Collier
- Decision and Infrastructure Sciences Division, Argonne National Laboratory, Lemont, IL, USA
| | - Anna Hotton
- Chicago Center for HIV Elimination, The University of Chicago, Chicago, IL, USA
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Abigail Skwara
- Chicago Center for HIV Elimination, The University of Chicago, Chicago, IL, USA
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Babak Mahdavi Ardestani
- Chicago Center for HIV Elimination, The University of Chicago, Chicago, IL, USA
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Russell Brewer
- Chicago Center for HIV Elimination, The University of Chicago, Chicago, IL, USA
- Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Kayo Fujimoto
- Center for Health Promotion and Prevention Research, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Nina Harawa
- Department of Psychiatry and Human Behavior, Charles R. Drew University, Los Angeles, CA, USA
- Department of Epidemiology, University of California, Los Angeles, CA, USA
| | - John A. Schneider
- Chicago Center for HIV Elimination, The University of Chicago, Chicago, IL, USA
- Department of Medicine, The University of Chicago, Chicago, IL, USA
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Buchanan AL, Bessey S, Goedel WC, King M, Murray EJ, Friedman SR, Halloran ME, Marshall BDL. Disseminated Effects in Agent-Based Models: A Potential Outcomes Framework and Application to Inform Preexposure Prophylaxis Coverage Levels for HIV Prevention. Am J Epidemiol 2021; 190:939-948. [PMID: 33128066 DOI: 10.1093/aje/kwaa239] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 09/14/2020] [Accepted: 10/20/2020] [Indexed: 12/25/2022] Open
Abstract
Preexposure prophylaxis (PrEP) for prevention of human immunodeficiency virus (HIV) infection may benefit not only the person who uses it but also their uninfected sexual risk contacts. We developed an agent-based model using a novel trial emulation approach to quantify disseminated effects of PrEP use among men who have sex with men in Atlanta, Georgia, from 2015 to 2017. Model components (subsets of agents connected through partnerships in a sexual network but not sharing partnerships with any other agents) were first randomized to an intervention coverage level or the control group; then, within intervention components, eligible agents were randomized to receive or not receive PrEP. We calculated direct and disseminated (indirect) effects using randomization-based estimators and report corresponding 95% simulation intervals across scenarios ranging from 10% coverage in the intervention components to 90% coverage. A population of 11,245 agents was simulated, with an average of 1,551 components identified. When comparing agents randomized to no PrEP in 70% coverage components with control agents, there was a 15% disseminated risk reduction in HIV incidence (risk ratio = 0.85, 95% simulation interval: 0.65, 1.05). Persons not on PrEP may receive a protective benefit by being in a sexual network with higher PrEP coverage. Agent-based models are useful for evaluating possible direct and disseminated effects of HIV prevention modalities in sexual networks.
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Kota KK, Mansergh G, Stephenson R, Hirshfield S, Sullivan P. Sociodemographic Characteristics of HIV Pre-Exposure Prophylaxis Use and Reasons for Nonuse Among Gay, Bisexual, and Other Men Who Have Sex with Men from Three US Cities. AIDS Patient Care STDS 2021; 35:158-166. [PMID: 33901403 DOI: 10.1089/apc.2020.0261] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
HIV pre-exposure prophylaxis (PrEP) is a preventive medication that could reduce new infections among men who have sex with men (MSM). There are limited data on differing reasons for PrEP nonuse by condomless anal sex (CAS). We examined demographic and behavioral variables associated with PrEP use and reasons for PrEP nonuse by CAS. Data are from the M-cubed Study, collected in a 2018 baseline assessment of MSM (n = 798) in Atlanta, Detroit, and New York City. Participants reported current PrEP use (31%), previous use (8%), and never use (61%). MSM reporting CAS [adjusted odds ratio (aOR) = 2.60, confidence interval (95% CI) = 1.73-3.91], age 18-29 (aOR = 2.11, 95% CI = 1.26-3.52), 30-39 (aOR = 2.12, 95% CI = 1.25-3.59), with a college degree (aOR = 1.96, 95% CI = 1.20-3.21), or postgraduate education (aOR = 2.58, 95% CI = 1.51-4.40) had greater odds of current (vs. never) use; uninsured (aOR = 0.30, 95% CI = 0.16-0.57) men had lower odds of current (vs. never) use. For never use, more MSM who reported CAS (vs. did not) endorsed the following reasons (p's < 0.05): Insurance wouldn't cover PrEP (20% vs. 12%), Didn't know where to get it (33% vs. 24%) and fewer reported Didn't need PrEP (23% vs. 39%) and Started a committed relationship (7% vs. 25%). For discontinuation, more MSM who reported CAS (vs. did not) endorsed Worry about the safety of PrEP (19% vs. 3%). Efforts are needed to enhance PrEP as an option among older, less educated, and uninsured MSM. These findings may inform how providers can facilitate PrEP use by messaging on access and safety for MSM who reported CAS.
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Affiliation(s)
- Krishna Kiran Kota
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
- Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee, USA
| | - Gordon Mansergh
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Rob Stephenson
- School of Nursing and The Center for Sexuality and Health Disparities, University of Michigan, Ann Arbor, Michigan, USA
| | - Sabina Hirshfield
- Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Patrick Sullivan
- Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
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25
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Physician Assistant's Knowledge and Confidence Regarding Prescribing Preexposure Prophylaxis for HIV Prevention. Sex Transm Dis 2021; 47:530-534. [PMID: 32404857 DOI: 10.1097/olq.0000000000001196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Physician assistants (PAs) have an important role to play in increasing preexposure prophylaxis (PrEP) prescriptions. We surveyed PAs regarding knowledge of Centers for Disease Control and Prevention guidelines for PrEP and confidence regarding PrEP. Physician assistants in primary care reported more accurate knowledge and higher confidence. However, knowledge and confidence gaps were present among all PAs, regardless of specialty.
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Misinformation, Gendered Perceptions, and Low Healthcare Provider Communication Around HPV and the HPV Vaccine Among Young Sexual Minority Men in New York City: The P18 Cohort Study. J Community Health 2021; 45:702-711. [PMID: 32016677 DOI: 10.1007/s10900-019-00784-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Human papillomavirus (HPV) is the most common sexually transmitted infection among adults in the United States, and can cause several types of cancer. This is of particular concern for sexual minority men, as their increased risk of HIV acquisition increases risk for HPV and HPV-associated cancers, particularly when coupled with low rates of HPV vaccination. As part of a larger study of the syndemic of HIV, substance use, and mental health among young sexual minority men in New York City, we sought to explore what sexual minority men know about HPV and the HPV vaccine, along with their experiences have been communicating about the virus and vaccine. We interviewed 38 young sexual minority men with diverse sociodemographic characteristics and identified three main themes: low knowledge about HPV infection and vaccination, highly gendered misconceptions about HPV only affecting women, and lack of communication from healthcare providers about HPV. The prevalence of incorrect HPV knowledge, coupled with inadequate education and vaccination in healthcare settings, indicates a missed opportunity for HPV prevention in a high-risk and high-need population.
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Teixeira da Silva D, Bouris A, Ramachandran A, Blocker O, Davis B, Harris J, Pyra M, Rusie LK, Brewer R, Pagkas-Bather J, Hotton A, Ridgway JP, McNulty M, Bhatia R, Schneider JA. Embedding a Linkage to Preexposure Prophylaxis Care Intervention in Social Network Strategy and Partner Notification Services: Results From a Pilot Randomized Controlled Trial. J Acquir Immune Defic Syndr 2021; 86:191-199. [PMID: 33109935 PMCID: PMC8103968 DOI: 10.1097/qai.0000000000002548] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 09/23/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND Increased preexposure prophylaxis (PrEP) uptake among black men who have sex with men and black transgender women (BMSM/TW) is needed to end the HIV epidemic. Embedding a brief intervention in network services that engage individuals in HIV transmission networks for HIV/ sexually transmitted infections testing may be an important strategy to accelerate PrEP uptake. SETTING Partner Services PrEP study is a pilot, randomized, control trial to improve linkage to PrEP care among BMSM/TW presenting for network services in Chicago, IL, from 2015 to 2017. METHODS BMSM/TW (N = 146) aged 18-40 years were recruited from network services (partners services and social network strategy services). Intervention participants developed an individualized linkage plan based on the information-motivation-behavioral skills model and received minibooster sessions. Control participants received treatment as usual. Sociodemographic, behavioral, and clinical factors were examined at baseline and 3- and 12-month postintervention. Intent-to-treat analyses examined linkage to PrEP care within 3-month postintervention (primary outcome). Secondary outcomes were PrEP initiation, time to linkage to PrEP care, and time to PrEP initiation. RESULTS Compared with control participants, a significantly greater proportion of the intervention participants were linked to PrEP care within 3 months (24% vs. 11%; P = 0.04) and initiated PrEP (24% vs. 11%; P = 0.05). Among those linked to PrEP care within the study period, intervention participants were linked significantly sooner than control participants [median (interquartile range) days, 26.5 (6.0-141.8) vs. 191.5 (21.5-297.0); P = 0.05]. CONCLUSION Study results support the preliminary efficacy of Partner Services PrEP to improve linkage to PrEP care and PrEP initiation among BMSM/TW.
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Affiliation(s)
- Daniel Teixeira da Silva
- Department of Combined Internal Medicine and Pediatrics, University of Chicago, Chicago, IL
- Department of Medicine, University of Chicago, Chicago, IL
| | - Alida Bouris
- School of Social Service Administration, University of Chicago, Chicago, IL
- Chicago Center for HIV Elimination, Chicago, IL
| | | | | | - Billy Davis
- Chicago Center for HIV Elimination, Chicago, IL
| | | | - Maria Pyra
- Chicago Center for HIV Elimination, Chicago, IL
- Howard Brown Health, Chicago, IL
| | | | - Russell Brewer
- Department of Medicine, University of Chicago, Chicago, IL
- Chicago Center for HIV Elimination, Chicago, IL
| | - Jade Pagkas-Bather
- Department of Medicine, University of Chicago, Chicago, IL
- Chicago Center for HIV Elimination, Chicago, IL
- Howard Brown Health, Chicago, IL
| | - Anna Hotton
- Chicago Center for HIV Elimination, Chicago, IL
| | - Jessica P Ridgway
- Department of Medicine, University of Chicago, Chicago, IL
- Chicago Center for HIV Elimination, Chicago, IL
| | - Moira McNulty
- Department of Medicine, University of Chicago, Chicago, IL
- Chicago Center for HIV Elimination, Chicago, IL
| | | | - John A Schneider
- Department of Medicine, University of Chicago, Chicago, IL
- Chicago Center for HIV Elimination, Chicago, IL
- Howard Brown Health, Chicago, IL
- Department of Public Health Sciences, University of Chicago, Chicago, IL
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Singleton AL, Marshall BD, Zang X, Nunn AS, Goedel WC. Added Benefits of Pre-Exposure Prophylaxis Use on HIV Incidence with Minimal Changes in Efficiency in the Context of High Treatment Engagement Among Men Who Have Sex with Men. AIDS Patient Care STDS 2020; 34:506-515. [PMID: 33216618 DOI: 10.1089/apc.2020.0151] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Although there is ongoing debate over the need for substantial increases in pre-exposure prophylaxis (PrEP) use when antiretroviral treatment confers the dual benefits of reducing HIV-related morbidity and mortality and the risk of HIV transmission, no studies to date have quantified the potential added benefits of PrEP use and changes in its efficiency in the context of high treatment engagement across multiple US subpopulations. We used a previously published agent-based model to simulate HIV transmission in a dynamic network of Black/African American and White men who have sex with men (MSM) in Atlanta, Georgia (2015-2024) to understand how reductions in HIV incidence attributable to varying levels of PrEP use change when United Nations Joint Programme on HIV/AIDS (UNAIDS) "90-90-90" goals for HIV treatment are achieved and maintained. Even at achievement of "90-90-90" goals, 75% PrEP coverage further reduced incidence by 67.9% and 74.2% to 1.53 [simulation interval (SI): 1.39-1.70] and 0.355 (SI: 0.316-0.391) per 100 person-years for Black/African American and White MSM, respectively, compared with the same scenario with no PrEP use. Increasing PrEP coverage from 15% to 75% under "90-90-90" goals only increased the number of person-years of PrEP use per infection averted by 8.1% and 10.5% to 26.7 (SI: 25.6-28.0) and 73.3 (SI: 70.6-75.7) among Black/African American MSM and White MSM, respectively. Even with high treatment engagement, substantial expansion of PrEP use contributes to meaningful decreases in HIV incidence among MSM with minimal changes in efficiency.
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Affiliation(s)
- Alyson L. Singleton
- Department of Biostatistics, School of Public Health, Brown University, Providence, Rhode Island, USA
| | - Brandon D.L. Marshall
- Department of Epidemiology, and School of Public Health, Brown University, Providence, Rhode Island, USA
| | - Xiao Zang
- Department of Epidemiology, and School of Public Health, Brown University, Providence, Rhode Island, USA
| | - Amy S. Nunn
- Department of Behavioral and Social Sciences, School of Public Health, Brown University, Providence, Rhode Island, USA
| | - William C. Goedel
- Department of Epidemiology, and School of Public Health, Brown University, Providence, Rhode Island, USA
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Bosh KA, Brooks JT, Hall HI. Human Immunodeficiency Virus Epidemic Control in the United States: An Assessment of Proposed UNAIDS Metrics, 2010-2015. Clin Infect Dis 2020; 69:1431-1433. [PMID: 30805624 DOI: 10.1093/cid/ciz151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 02/20/2019] [Indexed: 11/13/2022] Open
Abstract
Epidemic control is necessary to eliminate human immunodeficiency virus infections. We assessed epidemic control in the United States by applying 4 proposed UNAIDS metrics to national surveillance data collected between 2010 and 2015. Although epidemic control in the United States is possible, progress by UNAIDS metrics has been mixed.
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Affiliation(s)
- Karin A Bosh
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - John T Brooks
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - H Irene Hall
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia
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30
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Abstract
Intimate partner violence (IPV) significantly increases HIV risk among MSM. Pre-exposure prophylaxis (PrEP) may provide MSM experiencing IPV an option for self-protection from HIV without requiring condom negotiation or compromising safety. This study examined relationships among various forms of IPV (physical, emotional, monitoring, controlling, and forced sex) and PrEP use among 863 MSM participating in a cross-sectional, internet-based survey. Participants reported IPV rates during the prior 6 months that were consistent with prior research (physical violence, 23.3%; emotional violence, 36.3%; monitoring, 45.1%; controlling, 25.3%; forced sex, 20.0%). Forced sex and emotional IPV were negatively associated with PrEP use in our sample; in contrast, controlling was positively associated with PrEP use. We suggest clinical IPV screenings among MSM seeking PrEP, as well as PrEP-focused interventions that explicitly address IPV.
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31
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Quinn KG, Zarwell M, John SA, Christenson E, Walsh JL. Perceptions of PrEP Use Within Primary Relationships Among Young Black Gay, Bisexual, and Other Men Who Have Sex with Men. ARCHIVES OF SEXUAL BEHAVIOR 2020; 49:2117-2128. [PMID: 32240437 PMCID: PMC7321890 DOI: 10.1007/s10508-020-01683-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 02/29/2020] [Accepted: 03/08/2020] [Indexed: 05/12/2023]
Abstract
A significant proportion of new HIV infections among gay, bisexual, and other men who have sex with men (MSM) occur within primary relationships. Although PrEP use continues to increase, there is a need to better understand the factors that contribute to PrEP decision-making within primary relationships. We qualitatively examined how relationship context influences perceptions of PrEP and decisions to initiate and discontinue PrEP among young Black MSM to provide a nuanced understanding of PrEP use within relationships. Between late 2017 and mid-2018, we conducted 10 focus groups with young Black MSM (n = 80) in Milwaukee, WI, Minneapolis, MN, Kansas City, KS, and Detroit, MI. We used inductive thematic analysis to examine how young Black MSM make decisions about PrEP use within the context of primary relationships. We identified three primary themes: (1) perceptions of PrEP as an indication of distrust and infidelity, (2) perceptions of PrEP use as necessary, even in primary relationships, and (3) the influence of partners on PrEP. Our results demonstrate the considerable variation in how young Black MSM view PrEP within primary relationships and the influence of primary partners in PrEP use decisions. The dynamics between two or more individuals can shape an individual's conceptualizations of and decisions around PrEP use, and these may be key drivers of racial disparities in HIV and PrEP use.
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Affiliation(s)
- Katherine G Quinn
- Center for AIDS Intervention Research (CAIR), Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, 2071 N. Summit Ave., Milwaukee, WI, 53202, USA.
| | - Meagan Zarwell
- Department of Public Health Sciences, University of North Carolina, Charlotte, Charlotte, NC, USA
| | - Steven A John
- Center for AIDS Intervention Research (CAIR), Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, 2071 N. Summit Ave., Milwaukee, WI, 53202, USA
| | - Erika Christenson
- Center for AIDS Intervention Research (CAIR), Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, 2071 N. Summit Ave., Milwaukee, WI, 53202, USA
| | - Jennifer L Walsh
- Center for AIDS Intervention Research (CAIR), Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, 2071 N. Summit Ave., Milwaukee, WI, 53202, USA
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Projecting the impact of equity-based preexposure prophylaxis implementation on racial disparities in HIV incidence among MSM. AIDS 2020; 34:1509-1517. [PMID: 32384282 DOI: 10.1097/qad.0000000000002577] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND It is unknown what levels of preexposure prophylaxis (PrEP) use are needed to reduce racial disparities in HIV incidence among men who have sex with men (MSM). Using an agent-based model, we quantified the impact of achieving PrEP coverage targets grounded in equity on racial disparities in HIV incidence among MSM in an urban setting in the Southeastern United States. METHODS An agent-based model was adapted to simulate HIV transmission in a network of Black/African American and White MSM aged 18-39 years in the Atlanta-Sandy Springs-Roswell metropolitan area over 10 years (2015-2024). Scenarios simulated coverage levels consistent with targets based on the ratio of the number of individuals using PrEP to the number of individuals newly diagnosed in a calendar year (i.e., the 'PrEP-to-need ratio'), ranging from 1 to 10. Incidence rate ratios and differences were calculated as measures of disparities. RESULTS Without PrEP, the model predicted a rate ratio of 3.82 and a rate difference of 4.50 comparing HIV incidence in Black/African American and White MSM, respectively. Decreases in the rate ratio of at least 50% and in the rate difference of at least 75% were observed in all scenarios in which the PrEP-to-need ratio among Black/African American MSM was 10, regardless of the value among White MSM. CONCLUSION Significant increases in PrEP use are needed among Black/African American MSM to reduce racial disparities in HIV incidence. PrEP expansion must be coupled with structural interventions to address vulnerability to HIV infection among Black/African American MSM.
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Matacotta JJ, Rosales-Perez FJ, Carrillo CM. HIV Preexposure Prophylaxis and Treatment as Prevention - Beliefs and Access Barriers in Men Who Have Sex With Men (MSM) and Transgender Women: A Systematic Review. J Patient Cent Res Rev 2020; 7:265-274. [PMID: 32760758 DOI: 10.17294/2330-0698.1737] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Purpose While the annual rate of new HIV infections and diagnoses has remained stable for most groups, troubling increases are seen in transgender women and racial/ethnic-minority men who have sex with men (MSM), groups that are disproportionately affected by HIV. The primary purpose of this systematic review is to examine factors that impact attitudes and beliefs about preexposure prophylaxis (PrEP) and treatment as prevention (TasP) and to explore barriers to PrEP uptake in MSM and transgender women. Methods Using MeSH terms and relevant keywords, we conducted a systematic review of studies published between 2010 and 2019. We searched 4 literature databases and identified studies on MSM and transgender women to elucidate perceptions of PrEP and TasP as well as barriers to access. Results The search yielded several prominent themes associated with beliefs about HIV prevention approaches and barriers to PrEP access in MSM and transgender women. One was a lack of awareness or insufficient knowledge of PrEP and TasP. Structural barriers and geographic isolation also prevent access to HIV prevention. Sexual minority and HIV-related stigma, internalized homonegativity, and misinterpretations of messages within HIV prevention campaigns have negatively impacted PrEP uptake and beliefs about PrEP and TasP. Quality of the relationship MSM or transgender people have with their health care provider can facilitate or hinder HIV prevention. Finally, variability in beliefs about the efficacy of TasP has negatively affected the impact of TasP messaging campaigns. Conclusions Although there is evidence of increasing PrEP use in at-risk individuals, several barriers prevent wider acceptance and uptake. Misunderstanding about the meaning of "undetectable" and skepticism about the evidence behind TasP messaging campaigns are likely to delay the World Health Organization's stated goal of getting to zero transmissions.
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Affiliation(s)
- Joshua J Matacotta
- College of Health Sciences, Western University of Health Sciences, Pomona, CA
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Abstract
OBJECTIVE To estimate the proportion of US HIV-positive men who report a male HIV-negative/unknown status (HIV-discordant) sexual partner taking preexposure prophylaxis (PrEP), and the use of multiple HIV prevention strategies within partnerships. DESIGN The Medical Monitoring Project is a complex sample survey of US adults with diagnosed HIV. METHODS We used data collected during June 2016 to May 2018 among sexually active HIV-positive men who had at least one HIV-discordant male partner (N = 1871) to estimate the weighted prevalence of reporting at least one partner taking PrEP. Among HIV-discordant partnerships (N = 4029), we estimated PrEP use, viral suppression among HIV-positive partners, and condomless anal sex. We evaluated significant (P < 0.05) differences between groups using prevalence ratios with predicted marginal means. RESULTS Twenty-eight percent of sexually active HIV-positive MSM reported at least one HIV-discordant male partner taking PrEP. Twenty percent of HIV-discordant partners were reported to be taking PrEP; 73% were taking PrEP or the HIV-positive partner was virally suppressed. PrEP use was lower among black and Hispanic partners compared with white partners (12% and 19% vs. 27%). Fewer black than white MSM were in partnerships in which PrEP was used or the HIV-positive partner had sustained viral suppression (69% vs. 77%). Condomless anal intercourse was more prevalent in partnerships involving PrEP use and in partnerships involving either PrEP use or sustained viral suppression among the HIV-positive partner. CONCLUSION PrEP use was reported among one in five partners, with disparities between black and white partners. Increasing PrEP use and decreasing racial/ethnic disparities could reduce disparities in HIV incidence and help end the US HIV epidemic.
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Whitfield DL. Does internalized racism matter in HIV risk? Correlates of biomedical HIV prevention interventions among Black men who have sex with men in the United States. AIDS Care 2020; 32:1116-1124. [PMID: 32279540 DOI: 10.1080/09540121.2020.1753007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Black men who have sex with men (MSM) account for 26% of all new HIV infections in the United States. Biomedical HIV interventions have proven to reduce HIV infections however the use of these interventions by Black MSM is inconsistent. Research suggests that internalized racism may contribute to inconsistent biomedical HIV interventions (condom use and PrEP use) among Black MSM. Using a national sample of 432 Black MSM, we examined the relationship between condom and PrEP use and internalized racism. The results suggest there is some evidence for an association between internalized racism and PrEP use. In addition, internalized racism was not associated with condom use for both insertive and receptive anal sex among Black MSM. These finding suggest the relationship between internalized racism and HIV prevention strategies is not facile and more attention is needed to understand the true impact of racism, both internal and societal, on HIV prevention strategies among Black MSM. These findings underscore the nature of racism in the daily lives of Black MSM and how it impacts HIV prevention strategies adopted by these men.
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Changes in Disparities in Estimated HIV Incidence Rates Among Black, Hispanic/Latino, and White Men Who Have Sex With Men (MSM) in the United States, 2010-2015. J Acquir Immune Defic Syndr 2019; 81:57-62. [PMID: 30964805 DOI: 10.1097/qai.0000000000001977] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND During 2008-2015, the estimated annual HIV incidence rate in the United States decreased for each transmission risk category, except for men who have sex with men (MSM). Racial/ethnic disparities exist, with higher incidence rates for Black and Hispanic/Latino MSM. SETTING This analysis examines changes, 2010-2015, in disparities of HIV incidence among Black, Hispanic/Latino and White MSM. METHODS We compared results from the rate ratio, rate difference, weighted and unweighted index of disparity, and population attributable proportion. We calculated incidence rates for MSM using HIV surveillance data and published estimates of the MSM population in the United States. We generated 95% confidence intervals for each measure and used the Z statistic and associated P values to assess statistical significance. FINDINGS Results from all but one measure, Black-to-White rate difference, indicate that racial/ethnic disparities increased during 2010-2015; not all results were statistically significant. There were statistically significant increases in the Hispanic/Latino-to-White MSM incidence rate ratio (29%, P < 0.05), weighted index of disparity with the rate for White MSM as the referent group (9%, P < 0.05), and the population attributable proportion index (10%, P < 0.05). If racial/ethnic disparities among MSM had been eliminated, a range of 55%-61% decrease in overall MSM HIV incidence would have been achieved during 2010-2015. CONCLUSIONS A large reduction in overall annual HIV incidence among MSM can be achieved by eliminating racial/ethnic disparities among MSM. Removing social and structural causes of racial/ethnic disparities among MSM can be effective in reducing overall annual HIV incidence among MSM.
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A shot at equity? Addressing disparities among Black MSM in the coming era of long-acting injectable preexposure prophylaxis. AIDS 2019; 33:2110-2112. [PMID: 31577579 DOI: 10.1097/qad.0000000000002341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Chu BA, Castellanos ER, Gonzales MM, Gaither TW. Social determinants of self-reported pre-exposure prophylaxis use among a national sample of US men who have sex with men. Sex Transm Infect 2019; 96:368-374. [PMID: 31601642 DOI: 10.1136/sextrans-2019-054177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/01/2019] [Accepted: 09/23/2019] [Indexed: 11/03/2022] Open
Abstract
PURPOSE Various disparities exist in HIV transmission among men who have sex with men (MSM). Pre-exposure prophylaxis (PrEP) has been shown to decrease the acquisition of HIV, but there is variation in uptake within the MSM population. We aim to characterise PrEP use and correlates of self-reported PrEP use in a large national sample of urban MSM in the USA. METHODS Using data from a geosocial-networking application, a national sample (n=3744) from the largest 50 metropolitan centres in the USA was obtained. RESULTS We found 18.1% (95% CI 16.8 to 19.3) of profiles reported using PrEP, with decreased reported PrEP use in younger MSM aged 18-24 years (adjusted OR (aOR)=0.5, 95% CI 0.3 to 0.7), obese MSM (aOR=0.5, 95% CI 0.3 to 0.9), black MSM (aOR=0.6, 95% CI 0.4 to 0.9) and MSM in the South (aOR=0.7, 95% CI 0.5 to 0.9). CONCLUSION Significant disparities exist in PrEP reporting by age and among black, Southern US and obese MSM. More research is needed to better understand these disparities.
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Affiliation(s)
- Brian A Chu
- David Geffen School of Medicine, Los Angeles, California, USA
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Khanna AS, Schneider JA, Collier N, Ozik J, Issema R, di Paola A, Skwara A, Ramachandran A, Webb J, Brewer R, Cunningham W, Hilliard C, Ramani S, Fujimoto K, Harawa N. A modeling framework to inform preexposure prophylaxis initiation and retention scale-up in the context of 'Getting to Zero' initiatives. AIDS 2019; 33:1911-1922. [PMID: 31490212 PMCID: PMC6760326 DOI: 10.1097/qad.0000000000002290] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE(S) 'Getting to Zero' (GTZ) initiatives aim to eliminate new HIV infections over a projected time frame. Increased preexposure prophylaxis (PrEP) uptake among populations with the highest HIV incidence, such as young Black MSM, is necessary to accomplish this aim. Agent-based network models (ABNMs) can help guide policymakers on strategies to increase PrEP uptake. DESIGN Effective PrEP implementation requires a model that incorporates the dynamics of interventions and dynamic feedbacks across multiple levels including virus, host, behavior, networks, and population. ABNMs are a powerful tool to incorporate these processes. METHODS An ABNM, designed for and parameterized using data for young Black MSM in Illinois, was used to compare the impact of PrEP initiation and retention interventions on HIV incidence after 10 years, consistent with GTZ timelines. Initiation interventions selected individuals in serodiscordant partnerships, or in critical sexual network positions, and compared with a controlled setting where PrEP initiators were randomly selected. Retention interventions increased the mean duration of PrEP use. A combination intervention modeled concurrent increases in PrEP initiation and retention. RESULTS Selecting HIV-negative individuals for PrEP initiation in serodiscordant partnerships resulted in the largest HIV incidence declines, relative to other interventions. For a given PrEP uptake level, distributing effort between increasing PrEP initiation and retention in combination was approximately as effective as increasing only one exclusively. CONCLUSION Simulation results indicate that expanded PrEP interventions alone may not accomplish GTZ goals within a decade, and integrated scale-up of PrEP, antiretroviral therapy, and other interventions might be necessary.
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Affiliation(s)
| | | | - Nicholson Collier
- Consortium for Advanced Science and Engineering, The University of Chicago, Chicago, Illinois
| | - Jonathan Ozik
- Consortium for Advanced Science and Engineering, The University of Chicago, Chicago, Illinois
| | - Rodal Issema
- Chicago Center for HIV Elimination
- Department of Medicine
| | - Angela di Paola
- Center for Health Promotion and Prevention Research, The University of Texas Health Science Center at Houston (UTHealth), Houston, Texas
| | - Abigail Skwara
- Chicago Center for HIV Elimination
- Department of Medicine
| | | | - Jeannette Webb
- Chicago Center for HIV Elimination
- Department of Medicine
| | - Russell Brewer
- Chicago Center for HIV Elimination
- Department of Medicine
| | - William Cunningham
- Department of Health Policy and Management, University of California, Los Angeles
| | - Charles Hilliard
- Department of Psychiatry and Human Behavior, Charles R. Drew University
| | | | - Kayo Fujimoto
- Center for Health Promotion and Prevention Research, The University of Texas Health Science Center at Houston (UTHealth), Houston, Texas
| | - Nina Harawa
- Department of Psychiatry and Human Behavior, Charles R. Drew University
- Department of Epidemiology, University of California, Los Angeles, Los Angeles, California, USA
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Raymond HF, Snowden JM, Guigayoma J, McFarland W, Chen YH. Community Levels of PrEP Use Among Men Who Have Sex with Men by Race/Ethnicity, San Francisco, 2017. AIDS Behav 2019; 23:2687-2693. [PMID: 30758787 DOI: 10.1007/s10461-019-02428-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Efforts in San Francisco are maximizing the use of pre-exposure prophylaxis (PrEP) among men who have sex with men (MSM) where high levels of use are needed to maximize reducing new HIV infections. National HIV Behavioral Surveillance surveys MSM in San Francisco. Demographics, health care and risk behaviors are assessed. PrEP use is measured for 12 month, 6 month and 30 day periods. Of 399 HIV uninfected men sampled in 2017, 43.4% used PrEP in the past 12 months. Proportions of men using PrEP by race/ethnicity were not significant at any time point. Decreases between 6 month and 30 day use were highest among African American and Latino men. These men had the highest proportion of intermittent use in the past 30 days but not significantly. While our data suggest the disparity in PrEP use by race/ethnicity has narrowed in San Francisco, novel delivery of PrEP may narrow disparity further.
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Affiliation(s)
- H Fisher Raymond
- School of Public Health, Rutgers University, Piscataway, NJ, USA.
- University of California, San Francisco, San Francisco, CA, USA.
| | - Jonathan M Snowden
- School of Public Health, Oregon Health & Science University-Portland State University, Portland, OR, USA
| | - John Guigayoma
- San Francisco Department of Public Health, San Francisco, CA, USA
| | - Willi McFarland
- University of California, San Francisco, San Francisco, CA, USA
- San Francisco Department of Public Health, San Francisco, CA, USA
| | - Yea-Hung Chen
- San Francisco Department of Public Health, San Francisco, CA, USA
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41
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Kanny D, Jeffries WL, Chapin-Bardales J, Denning P, Cha S, Finlayson T, Wejnert C. Racial/Ethnic Disparities in HIV Preexposure Prophylaxis Among Men Who Have Sex with Men - 23 Urban Areas, 2017. MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT 2019; 68:801-806. [PMID: 31536484 PMCID: PMC6755820 DOI: 10.15585/mmwr.mm6837a2] [Citation(s) in RCA: 184] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dafna Kanny
- Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, CDC
| | - William L Jeffries
- Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, CDC
| | - Johanna Chapin-Bardales
- Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, CDC
| | - Paul Denning
- Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, CDC
| | - Susan Cha
- Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, CDC
| | - Teresa Finlayson
- Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, CDC
| | - Cyprian Wejnert
- Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, CDC
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Blumenthal J, Jain S, Mulvihill E, Sun S, Hanashiro M, Ellorin E, Graber S, Haubrich R, Morris S. Perceived Versus Calculated HIV Risk: Implications for Pre-exposure Prophylaxis Uptake in a Randomized Trial of Men Who Have Sex With Men. J Acquir Immune Defic Syndr 2019; 80:e23-e29. [PMID: 30422909 PMCID: PMC6331232 DOI: 10.1097/qai.0000000000001888] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Inaccurate HIV risk perception by men who have sex with men is a barrier to HIV prevention. Providing information about objective HIV risk could improve pre-exposure prophylaxis (PrEP) uptake. METHODS PrEP Accessibility Research & Evaluation 2 (PrEPARE2) was a randomized controlled trial of men who have sex with men to determine whether an objective risk score affects future PrEP uptake. Participants completed a baseline survey to assess demographics, risk behaviors, and HIV self-perceived risk (SPR). The survey generated a calculated HIV risk (CalcR) score, estimating HIV risk based on reported condomless anal intercourse and sexually transmitted infections, and was provided to individuals in the intervention arm. Participants were contacted 8 weeks later to determine whether they initiated PrEP. RESULTS Of 171 participants (median age 32 years; 37% Hispanic or non-Hispanic Black; median 5 sexual partners in the past 6 months), 81% had heard of PrEP, and 57% believed they were good PrEP candidates. SPR had poor agreement with CalcR (kappa = 0.176) with 38% underestimating their HIV risk. At week 8, only 14 of 135 participants had initiated PrEP with no difference between arms (CalcR 11%, control 10%, P > 0.99). The most common reason for not starting PrEP was low HIV risk perception. There was a relative decrease in SPR over time (P = 0.06) but no difference between arms (P = 0.29). CONCLUSION Providing an objective HIV risk score alone did not increase PrEP uptake. HIV testing performed at testing sites may be a crucial time to correct misperceptions about risk and initiate same-day PrEP, given enthusiasm for PrEP on the testing day to facilitate greater uptake.
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Affiliation(s)
| | - Sonia Jain
- University of California, San Diego, La Jolla, CA
| | | | - Shelly Sun
- University of California, San Diego, La Jolla, CA
| | | | - Eric Ellorin
- University of California, San Diego, La Jolla, CA
| | - Sara Graber
- University of California, San Diego, La Jolla, CA
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Adams JW, Lurie MN, King MRF, Brady KA, Galea S, Friedman SR, Khan MR, Marshall BDL. Potential drivers of HIV acquisition in African-American women related to mass incarceration: an agent-based modelling study. BMC Public Health 2018; 18:1387. [PMID: 30563496 PMCID: PMC6299641 DOI: 10.1186/s12889-018-6304-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 12/05/2018] [Indexed: 02/06/2023] Open
Abstract
Background The United States has the highest incarceration rate in the world. Incarceration can increase HIV risk behaviors for individuals involved with the criminal justice system and may be a driver of HIV acquisition within the community. Methods We used an agent-based model to simulate HIV transmission in a sexual-contact network representing heterosexual African American men and women in Philadelphia to identify factors influencing the impact of male mass incarceration on HIV acquisition in women. The model was calibrated using surveillance data and assumed incarceration increased the number of sexual contacts and decreased HIV care engagement for men post-release. Incarceration of a partner increased the number of sexual contacts for women. We compared a counterfactual scenario with no incarceration to scenarios varying key parameters to determine what factors drove HIV acquisition in women. Results Setting the duration of male high-risk sexual behavior to two years post-release increased the number of HIV transmissions to women by more than 20%. Decreasing post-release HIV care engagement and increasing HIV acquisition risk attributable to sexually transmitted infections (STIs) also increased the number of HIV transmissions to women. Changing the duration of risk behavior for women, the proportion of women engaging in higher risk behavior, and the relative risk of incarceration for HIV-infected men had minimal impact. Conclusion The mass incarceration of African American men can increase HIV acquisition in African American women on a population-level through factors including post-release high-risk behaviors, disruption of HIV care engagement among formerly incarcerated men, and increased STI prevalence. These findings suggest that the most influential points of intervention may be programs seeking to reduce male risk behaviors and promote HIV care engagement post-release, as well as STI testing and treatment programs for recently incarcerated men, as well as women with incarcerated partners. Electronic supplementary material The online version of this article (10.1186/s12889-018-6304-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Joëlla W Adams
- Brown University School of Public Health, 121 South Main Street, Providence, RI, 02912, USA
| | - Mark N Lurie
- Brown University School of Public Health, 121 South Main Street, Providence, RI, 02912, USA
| | - Maximilian R F King
- Brown University School of Public Health, 121 South Main Street, Providence, RI, 02912, USA
| | - Kathleen A Brady
- Philadelphia Department of Public Health, AIDS Activities Coordinating Office, Philadelphia, PA, USA
| | - Sandro Galea
- Boston University School of Public Health, Boston, MA, USA
| | - Samuel R Friedman
- National Development and Research Institutes, New York City, NY, USA
| | - Maria R Khan
- Division of Comparative Effectiveness and Decision Science, Department of Population Health, New York University, New York City, NY, USA
| | - Brandon D L Marshall
- Brown University School of Public Health, 121 South Main Street, Providence, RI, 02912, USA.
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