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.
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.
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DOI：
10.1371/journal.pone.0102894
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Clark JL
中科院分区：
文献类型：
--
作者：
Cambou MC;Perez-Brumer AG;Segura ER;Salvatierra HJ;Lama JR;Sanchez J;Clark JL
伴侣类型是与无保护肛交（UAI）以及随后的艾滋病毒和性传播感染（STI）风险相关的重要因素。我们研究了在秘鲁利马最近被诊断为艾滋病毒和/或性传播感染的男男性行为者（MSM）和男-女变性妇女（TGW）中伙伴关系类型与UAI的关联。我们报告的数据来自2011年至2012年期间在秘鲁利马最近诊断为艾滋病毒和/或性传播感染的男男性行为者和女同性恋者的横断面分析。我们对参与者进行了UAI调查，根据伴侣类型，最多有三个性伴侣。采用Poisson分布的多变量广义估计等化（GEE）模型，根据伴侣类型估计UAI的患病率（PR）。在339名最近诊断为艾滋病毒和/或性传播感染的男男性行为者和变性女同性恋者中（平均年龄：30.6岁，标准差9.0），65.5%的人自认为是同性恋者/男同性恋者，16.0%的人自认为是双性恋者，15.2%的人自认为是男-女变性者，3.3%的人自认为是异性恋者。参与者提供了893名最近与他们进行插入或接受肛交的男性或TGW伴侣的信息：28.9%稳定的伴侣，56.4%不稳定/非交易性伴侣（即偶然或匿名）和14.7%交易性伴侣（即交易性客户或性工作者）。41.3%的伴侣报告了无保护的肛交。在多变量分析中，与UAI相关的因素包括伙伴关系类型（非稳定/非交易性伴侣APR 0.73，[95% CI 0.59-0.91]，交易性伴侣APR 0.53 [0.36-0.78]，p<0.05）和与伴侣的既往性接触次数（>10次）APR 1.43 [1.06-1.92]，p<0.05）。UAI更常见于稳定的伴侣和超过10次性接触的伴侣，这表明UAI在人际承诺程度更高的伴侣关系中更普遍。进一步的研究评估合作伙伴层面的因素和行为是至关重要的，以改善艾滋病毒和/或性传播感染的预防工作，秘鲁男男性接触者和TGW。
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. 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. 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). 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.
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影响因子：
3.1
作者：
Lattimore, Sam;Thornton, Alicia;Elford, Jonathan
通讯作者：
Elford, Jonathan
影响因子：
1.7
作者：
McLean, J.;Boulton, M.;Hart, G.
通讯作者：
Hart, G.
影响因子：
3.7
作者：
Goodreau SM;Carnegie NB;Vittinghoff E;Lama JR;Sanchez J;Grinsztejn B;Koblin BA;Mayer KH;Buchbinder SP
通讯作者：
Buchbinder SP
DOI：
10.1080/13548506.2010.507772
发表时间：
2010-12
期刊：
Psychology, health & medicine
影响因子：
--
作者：
Knox J;Yi H;Reddy V;Maimane S;Sandfort T
通讯作者：
Sandfort T
DOI：
10.1097/00126334-200501010-00015
发表时间：
2005-01-01
影响因子：
3.6
作者：
Guzman, R;Colfax, GN;Buchbinder, S
通讯作者：
Buchbinder, S