Cargando…

The Risk of Stable Partnerships: Associations between Partnership Characteristics and Unprotected Anal Intercourse among Men Who Have Sex with Men and Transgender Women Recently Diagnosed with HIV and/or STI in Lima, Peru

BACKGROUND: Partnership type is an important factor associated with unprotected anal intercourse (UAI) and subsequent risk for HIV and sexually transmitted infections (STI). We examined the association of partnership type with UAI among men who have sex with men (MSM) and male-to-female transgender...

Descripción completa

Detalles Bibliográficos
Autores principales: Cambou, Mary C., Perez-Brumer, Amaya G., Segura, Eddy R., Salvatierra, H. Javier, Lama, Javier R., Sanchez, Jorge, Clark, Jesse L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4100899/
https://www.ncbi.nlm.nih.gov/pubmed/25029514
http://dx.doi.org/10.1371/journal.pone.0102894
_version_ 1782326737150935040
author Cambou, Mary C.
Perez-Brumer, Amaya G.
Segura, Eddy R.
Salvatierra, H. Javier
Lama, Javier R.
Sanchez, Jorge
Clark, Jesse L.
author_facet Cambou, Mary C.
Perez-Brumer, Amaya G.
Segura, Eddy R.
Salvatierra, H. Javier
Lama, Javier R.
Sanchez, Jorge
Clark, Jesse L.
author_sort Cambou, Mary C.
collection PubMed
description BACKGROUND: Partnership type is an important factor associated with unprotected anal intercourse (UAI) and subsequent risk for HIV and sexually transmitted infections (STI). We examined the association of partnership type with UAI among men who have sex with men (MSM) and male-to-female transgender women (TGW) in Lima, Peru, recently diagnosed with HIV and/or STI. METHODS: We report data from a cross-sectional analysis of MSM and TGW recently diagnosed with HIV and/or STI in Lima, Peru between 2011 and 2012. We surveyed participants regarding UAI with up to their three most recent sexual partners according to partner type. Multivariable Generalized Estimate Equating (GEE) models with Poisson distribution were used to estimate prevalence ratios (PR) for UAI according to partner type. RESULTS: Among 339 MSM and TGW recently diagnosed with HIV and/or STI (mean age: 30.6 years, SD 9.0), 65.5% self-identified as homosexual/gay, 16.0% as bisexual, 15.2% as male-to-female transgender, and 3.3% as heterosexual. Participants provided information on 893 recent male or TGW partners with whom they had engaged in insertive or receptive anal intercourse: 28.9% stable partners, 56.4% non-stable/non-transactional partners (i.e. casual or anonymous), and 14.7% transactional partners (i.e. transactional sex client or sex worker). Unprotected anal intercourse was reported with 41.3% of all partners. In multivariable analysis, factors associated with UAI included partnership type (non-stable/non-transactional partner APR 0.73, [95% CI 0.59–0.91], transactional partner APR 0.53 [0.36–0.78], p<0.05) and the number of previous sexual encounters with the partner (>10 encounters APR 1.43 [1.06–1.92], p<0.05). CONCLUSION: UAI was more commonly reported for stable partners and in partnerships with >10 sexual encounters, suggesting UAI is more prevalent in partnerships with a greater degree of interpersonal commitment. Further research assessing partner-level factors and behavior is critical for improving HIV and/or STI prevention efforts among Peruvian MSM and TGW.
format Online
Article
Text
id pubmed-4100899
institution National Center for Biotechnology Information
language English
publishDate 2014
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-41008992014-07-18 The Risk of Stable Partnerships: Associations between Partnership Characteristics and Unprotected Anal Intercourse among Men Who Have Sex with Men and Transgender Women Recently Diagnosed with HIV and/or STI in Lima, Peru Cambou, Mary C. Perez-Brumer, Amaya G. Segura, Eddy R. Salvatierra, H. Javier Lama, Javier R. Sanchez, Jorge Clark, Jesse L. PLoS One Research Article BACKGROUND: Partnership type is an important factor associated with unprotected anal intercourse (UAI) and subsequent risk for HIV and sexually transmitted infections (STI). We examined the association of partnership type with UAI among men who have sex with men (MSM) and male-to-female transgender women (TGW) in Lima, Peru, recently diagnosed with HIV and/or STI. METHODS: We report data from a cross-sectional analysis of MSM and TGW recently diagnosed with HIV and/or STI in Lima, Peru between 2011 and 2012. We surveyed participants regarding UAI with up to their three most recent sexual partners according to partner type. Multivariable Generalized Estimate Equating (GEE) models with Poisson distribution were used to estimate prevalence ratios (PR) for UAI according to partner type. RESULTS: Among 339 MSM and TGW recently diagnosed with HIV and/or STI (mean age: 30.6 years, SD 9.0), 65.5% self-identified as homosexual/gay, 16.0% as bisexual, 15.2% as male-to-female transgender, and 3.3% as heterosexual. Participants provided information on 893 recent male or TGW partners with whom they had engaged in insertive or receptive anal intercourse: 28.9% stable partners, 56.4% non-stable/non-transactional partners (i.e. casual or anonymous), and 14.7% transactional partners (i.e. transactional sex client or sex worker). Unprotected anal intercourse was reported with 41.3% of all partners. In multivariable analysis, factors associated with UAI included partnership type (non-stable/non-transactional partner APR 0.73, [95% CI 0.59–0.91], transactional partner APR 0.53 [0.36–0.78], p<0.05) and the number of previous sexual encounters with the partner (>10 encounters APR 1.43 [1.06–1.92], p<0.05). CONCLUSION: UAI was more commonly reported for stable partners and in partnerships with >10 sexual encounters, suggesting UAI is more prevalent in partnerships with a greater degree of interpersonal commitment. Further research assessing partner-level factors and behavior is critical for improving HIV and/or STI prevention efforts among Peruvian MSM and TGW. Public Library of Science 2014-07-16 /pmc/articles/PMC4100899/ /pubmed/25029514 http://dx.doi.org/10.1371/journal.pone.0102894 Text en © 2014 Cambou et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Cambou, Mary C.
Perez-Brumer, Amaya G.
Segura, Eddy R.
Salvatierra, H. Javier
Lama, Javier R.
Sanchez, Jorge
Clark, Jesse L.
The Risk of Stable Partnerships: Associations between Partnership Characteristics and Unprotected Anal Intercourse among Men Who Have Sex with Men and Transgender Women Recently Diagnosed with HIV and/or STI in Lima, Peru
title The Risk of Stable Partnerships: Associations between Partnership Characteristics and Unprotected Anal Intercourse among Men Who Have Sex with Men and Transgender Women Recently Diagnosed with HIV and/or STI in Lima, Peru
title_full The Risk of Stable Partnerships: Associations between Partnership Characteristics and Unprotected Anal Intercourse among Men Who Have Sex with Men and Transgender Women Recently Diagnosed with HIV and/or STI in Lima, Peru
title_fullStr The Risk of Stable Partnerships: Associations between Partnership Characteristics and Unprotected Anal Intercourse among Men Who Have Sex with Men and Transgender Women Recently Diagnosed with HIV and/or STI in Lima, Peru
title_full_unstemmed The Risk of Stable Partnerships: Associations between Partnership Characteristics and Unprotected Anal Intercourse among Men Who Have Sex with Men and Transgender Women Recently Diagnosed with HIV and/or STI in Lima, Peru
title_short The Risk of Stable Partnerships: Associations between Partnership Characteristics and Unprotected Anal Intercourse among Men Who Have Sex with Men and Transgender Women Recently Diagnosed with HIV and/or STI in Lima, Peru
title_sort risk of stable partnerships: associations between partnership characteristics and unprotected anal intercourse among men who have sex with men and transgender women recently diagnosed with hiv and/or sti in lima, peru
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4100899/
https://www.ncbi.nlm.nih.gov/pubmed/25029514
http://dx.doi.org/10.1371/journal.pone.0102894
work_keys_str_mv AT camboumaryc theriskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT perezbrumeramayag theriskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT seguraeddyr theriskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT salvatierrahjavier theriskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT lamajavierr theriskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT sanchezjorge theriskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT clarkjessel theriskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT camboumaryc riskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT perezbrumeramayag riskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT seguraeddyr riskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT salvatierrahjavier riskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT lamajavierr riskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT sanchezjorge riskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu
AT clarkjessel riskofstablepartnershipsassociationsbetweenpartnershipcharacteristicsandunprotectedanalintercourseamongmenwhohavesexwithmenandtransgenderwomenrecentlydiagnosedwithhivandorstiinlimaperu