Use of respondent driven sampling (RDS) generates a very diverse sample of men who have sex with men (MSM) in Buenos Aires, Argentina.
Use of respondent driven sampling (RDS) generates a very diverse sample of men who have sex with men (MSM) in Buenos Aires, Argentina.
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DOI：
10.1371/journal.pone.0027447
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发表时间：
2011
期刊：
影响因子：
3.7
通讯作者：
Avila MM
中科院分区：
文献类型：
--
作者：
Carballo-Diéguez A;Balan I;Marone R;Pando MA;Dolezal C;Barreda V;Leu CS;Avila MM
先前在阿根廷布宜诺斯艾利斯进行的一项针对男男性行为者（MSM）的研究使用了方便样本，主要包括男同性恋者。为了增加MSM样本的代表性，我们在阿根廷首次使用了受访者驱动抽样（RDS）。使用RDS，在某些特定条件下，对具有特定性状的总体百分比的观察估计是渐近无偏的。我们从性取向的角度描述了招募样本的多样性，并对比了不同亚组的HIV性风险行为。采用RDS法招募500名男男性行为者。通过面对面访谈和基于web的CASI收集行为数据。与之前的研究相比，从性别认同的角度来看，RDS产生了一个非常多样化的MSM样本。只有24.5%的参与者认为自己是同性恋；36.2%为双性恋，21.9%为异性恋，17.4%为“其他”。男同性恋者和非男同性恋者在性行为上存在显著差异，前者有更多的性伴侣，更频繁的性接触，使用避孕套的频率更低。三分之一的男性（同性恋，3%；双性恋，34%；异性恋，51%；其他，49%）报告在采访前的两个月内与男性、女性和异装癖者发生过性关系。这一人群需要进一步研究，并可能针对这种伙伴关系的多样性制定艾滋病毒预防战略。我们的研究结果强调了使用RDS来接触非同性恋男同性恋者的潜在有效性。他们还介绍了在实施RDS招募男男性行为者的过程中所学到的经验教训，包括形成性工作的重要性和局限性，根据不太富裕的潜在参与者的情况量身定制激励措施的必要性，防止掩盖的必要性，以及评估网络规模的挑战。
Prior research focusing on men who have sex with men (MSM) conducted in Buenos Aires, Argentina, used convenience samples that included mainly gay identified men. To increase MSM sample representativeness, we used Respondent Driven Sampling (RDS) for the first time in Argentina. Using RDS, under certain specified conditions, the observed estimates for the percentage of the population with a specific trait are asymptotically unbiased. We describe, the diversity of the recruited sample, from the point of view of sexual orientation, and contrast the different subgroups in terms of their HIV sexual risk behavior. 500 MSM were recruited using RDS. Behavioral data were collected through face-to-face interviews and Web-based CASI. In contrast with prior studies, RDS generated a very diverse sample of MSM from a sexual identity perspective. Only 24.5% of participants identified as gay; 36.2% identified as bisexual, 21.9% as heterosexual, and 17.4% were grouped as “other.” Gay and non-gay identified MSM differed significantly in their sexual behavior, the former having higher numbers of partners, more frequent sexual contacts and less frequency of condom use. One third of the men (gay, 3%; bisexual, 34%, heterosexual, 51%; other, 49%) reported having had sex with men, women and transvestites in the two months prior to the interview. This population requires further study and, potentially, HIV prevention strategies tailored to such diversity of partnerships. Our results highlight the potential effectiveness of using RDS to reach non-gay identified MSM. They also present lessons learned in the implementation of RDS to recruit MSM concerning both the importance and limitations of formative work, the need to tailor incentives to circumstances of the less affluent potential participants, the need to prevent masking, and the challenge of assessing network size.
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影响因子：
4.2
作者：
Mimiaga, Matthew J.;Reisner, Sari L.;Mayer, Kenneth H.
通讯作者：
Mayer, Kenneth H.
DOI：
10.1111/j.0081-1750.2004.00152.x
发表时间：
2004-01-01
期刊：
SOCIOLOGICAL METHODOLOGY, 2004, VOL 34
影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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DOI：
10.1080/09540120902893258
发表时间：
2009-01-01
影响因子：
1.7
作者：
Reisner, Sari L.;Mimiaga, Matthew J.;Mayer, Kenneth H.
通讯作者：
Mayer, Kenneth H.
影响因子：
4.4
作者：
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