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Bachman VF, Montaño MA, Ulrich A, Villaran M, Cabello R, Gonzalez P, Sanchez H, Lama JR, Duerr A. Correlates of condomless anal intercourse with different types of sexual partners among men who have sex with men and transgender women in Lima, Peru. AIDS Care 2023; 35:791-799. [PMID: 34702087 PMCID: PMC9038957 DOI: 10.1080/09540121.2021.1994517] [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: 10/28/2020] [Accepted: 10/12/2021] [Indexed: 10/20/2022]
Abstract
CLINICAL TRIAL REGISTRATION The Sabes study was registered in March 2013 with the National Institutes of Health at ClinicalTrials.gov (identifier: NCT01815580).
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Affiliation(s)
- Victoria F Bachman
- University of Washington Internal Medicine Residency Program, Seattle, Washington
| | | | - Angela Ulrich
- University of Washington, Department of Epidemiology, Seattle, Washington
- Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Manuel Villaran
- Asociación Civil Impacta Salud y Educación, Lima, Peru
- Dirección Científica y Académia, AUNA, Lima, Peru
| | | | | | | | - Javier R Lama
- Asociación Civil Impacta Salud y Educación, Lima, Peru
| | - Ann Duerr
- University of Washington, Department of Epidemiology, Seattle, Washington
- Fred Hutchinson Cancer Research Center, Seattle, Washington
- University of Washington, Department of Global Health, Seattle, Washington
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Hentges B, Knauth DR, Vigo A, Teixeira LB, Leal AF, Kendall C, Magno L, Dourado I, Kerr L. Inconsistent condom use with casual partners among men who have sex with men in Brazil: a cross-sectional study. REVISTA BRASILEIRA DE EPIDEMIOLOGIA 2023; 26:e230019. [PMID: 36995830 PMCID: PMC10041745 DOI: 10.1590/1980-549720230019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 01/04/2023] [Indexed: 03/31/2023] Open
Abstract
OBJECTIVE This study aimed to evaluate factors associated with inconsistent condom use with casual partners in a population of men who have sex with men (MSM) in Brazil. METHODS In 2016, 4,176 MSM >18 years were enrolled in 12 capitals of Brazil using a Respondent Driven Sampling (RDS) method. For the construction of the outcome, we evaluated questions about condom use in all anal intercourse (receptive and insertive) in the previous six months and the last sexual intercourse. Estimates were calculated using a weighted complex sample design. We performed a logistic regression analysis to determine the associations between sociodemographic and behavioral factors and inconsistent condom use in sexual relationships with casual male partners. RESULTS More than half of our sample (50.8%) had not used condoms consistently with casual partners in the previous six months. Inconsistent condom use was significantly associated with: low education (weighted odds ratio - wOR: 1.55; 95% confidence interval - CI 0.99-2.40), lack of counseling on sexually transmitted infections STI (wOR: 1.51; 95%CI 1.05-2.17), non-use of condoms at sexual debut (wOR: 3.05; 95%CI 2.12-4.40) and moderate and high perceived risk for HIV (wOR: 1.51; 95%CI 1.07-2.14). Higher age was negatively associated with inconsistent condom use (wOR=0.97, 95%CI 0.89-0.99). CONCLUSION Despite being an individual behavior, condom use is related to factors beyond the individual scope. HIV/Aids prevention policies should focus on younger MSM, providing qualified information about condom use, preferably before the beginning of their sexual life.
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Affiliation(s)
- Bruna Hentges
- Universidade Federal do Rio Grande do Sul, School of Medicine, Epidemiology Undergraduate Program - Porto Alegre (RS), Brazil
| | - Daniela Riva Knauth
- Universidade Federal do Rio Grande do Sul, Department of Social Medicine - Porto Alegre (RS), Brazil
| | - Alvaro Vigo
- Universidade Federal do Rio Grande do Sul, Department of Statistics - Porto Alegre (RS), Brazil
| | | | - Andréa Fachel Leal
- Universidade Federal do Rio Grande do Sul, Institute of Philosophy and Human Sciences. Porto Alegre (RS), Brazil
| | - Carl Kendall
- Universidade do Ceará, School of Medicine, Department of Collective Health. Fortaleza (CE), Brazil
| | - Laio Magno
- Universidade do Estado da Bahia, Department of Life Sciences, Salvador (BA), Brazil
| | - Inês Dourado
- Universidade Federal da Bahia, Health Collective Institute, Salvador (BA), Brazil
| | - Ligia Kerr
- Universidade Federal do Ceará, Department of Community Health, Fortaleza (CE), Brazil
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Bender Ignacio RA, Dasgupta S, Valdez R, Pandey U, Pasalar S, Alfaro R, Hladik F, Gornalusse G, Lama JR, Duerr A. Dynamic immune markers predict HIV acquisition and augment associations with sociobehavioral factors for HIV exposure. iScience 2022; 25:105632. [PMID: 36483014 PMCID: PMC9722478 DOI: 10.1016/j.isci.2022.105632] [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] [Received: 05/26/2022] [Revised: 10/21/2022] [Accepted: 11/16/2022] [Indexed: 11/21/2022] Open
Abstract
Prior studies attempting to link biomarkers of immune activation with risk of acquiring HIV have relied on cross sectional samples, most without proximity to HIV acquisition. We created a nested case-control study within the Sabes study in Peru, and assessed a panel of plasma immune biomarkers at enrollment and longitudinally, including within a month of diagnosis of primary HIV or matched timepoint in controls. We used machine learning to select biomarkers and sociobehavioral covariates predictive of HIV acquisition. Most biomarkers were indistinguishable between cases and controls one month before HIV diagnosis. However, levels differed between cases and controls at study entry, months to years earlier. Dynamic changes in IL-2, IL-7, IL-10, IP-10 and IL-12, rather than absolute levels, jointly predicted HIV risk when added to traditional risk factors, and there was modest effect modification of biomarkers on association between sociobehavioral risk factors and HIV acquisition.
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Affiliation(s)
- Rachel A. Bender Ignacio
- Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, WA 98104, USA,Vaccine and Infectious Diseases Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA,Department of Global Health, University of Washington, Seattle, WA 98195, USA,Corresponding author
| | - Sayan Dasgupta
- Vaccine and Infectious Diseases Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Rogelio Valdez
- Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Urvashi Pandey
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA
| | - Siavash Pasalar
- Vaccine and Infectious Diseases Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Ricardo Alfaro
- Centro de Investigaciones Tecnológicas Biomédicas y Medioambientales, Universidad Nacional Mayor de San Marcos, Bellavista, Lima 07006, Peru
| | - Florian Hladik
- Vaccine and Infectious Diseases Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA,Department of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA
| | - Germán Gornalusse
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA
| | - Javier R. Lama
- Asociación Civil Impacta Salud y Educación, Lima 15063, Peru,Department of Global Health, University of Washington, Seattle, WA 98195, USA
| | - Ann Duerr
- Vaccine and Infectious Diseases Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA,Department of Global Health, University of Washington, Seattle, WA 98195, USA
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Let's Talk About Sex: The Impact of Partnership Contexts on Communication About HIV Serostatus and Condom Use Among Men Who Have Sex with Men (MSM) and Transgender Women (TW) in Lima, Peru. AIDS Behav 2021; 25:2139-2153. [PMID: 33411208 DOI: 10.1007/s10461-020-03144-1] [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] [Accepted: 12/17/2020] [Indexed: 01/17/2023]
Abstract
Sexual communication with partners informs risk assessment and sexual practices. We evaluated participant, partner, and network factors associated with communication about condom use and HIV serostatus and explored their relationships with condomless anal intercourse (CAI) among 446 men who have sex with men (MSM) and 122 transgender women (TW) in Lima, Peru. Generalized estimating equations assessed contextual influences on communication and practices with recent sexual partners. More frequent HIV communication was reported by MSM who: identified as heterosexual, compared to bisexual or gay; characterized partnerships as stable, compared to casual, anonymous, or commercial; or discussed HIV/STIs with close social contacts (p < 0.05). TW in concurrent partnerships discussed condom use more frequently than those in monogamous relationships (p < 0.05). Condom use discussions and alcohol use among MSM were associated with CAI (p < 0.05). Findings highlight complexity in sexual decision-making and call for further study of conversation content and practices to inform HIV prevention messaging.
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