Including Online-Recruited Seeds: A Respondent-Driven Sample of Men Who Have Sex With Men
Including Online-Recruited Seeds: A Respondent-Driven Sample of Men Who Have Sex With Men
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DOI：
10.2196/jmir.5258
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发表时间：
2016-03-01
影响因子：
7.4
通讯作者：
Hogg, Robert S.
中科院分区：
文献类型：
--
作者：
Lachowsky, Nathan John;Lal, Allan;Hogg, Robert S.
背景：技术改变了男男性行为者(MSM)寻求性行为和社交的方式，这可能会影响在这一人群中实施受访者驱动抽样(RDS)。最初的参与者(也称为种子)是RDS中的一个关键考虑因素，因为他们开始了招聘链。目的：本研究的目的是比较(1)线上和线下招募的种子以及(2)线上和线下招募种子的后续招募链。方法：2012-2014年间，我们在加拿大温哥华使用RDS招募了MSM。结果：共使用119粒种子，其中85粒为网上招募的种子，再招募600名男男性接触者。与线下招募的种子相比，在线招募的种子不太可能是HIV阳性(OR 0.34，95%CI 0.13-0.88)，参加过同性恋社区团体(AOR 0.33，95%CI 0.12-0.90)，以及感觉同性恋社区的参与非常重要(AOR 0.16，95%CI 0.03-0.93)。在线招募的种子更有可能总是询问性伴侣的艾滋病毒状况，而不是1年(AOR 1.65，95%CI 1.06-2.56)。在线种子招募的新兵在Facebook上的好友更少(例如，201-500 vs>；500，AOR 1.69，95%CI 1.02-2.80)。结论：在线招募的种子更普遍，招募的参与者较少，但与线下招募的种子不同。因此，这可能有助于创造一个更多样化的总体样本。我们的工作表明了地理社交网络应用程序在帮助RDS招聘工作方面的价值，特别是在通过其他方式面临缓慢参与的情况下。了解网络互动的程度将是确认在线RDS招聘战略有效性的重要下一步。
Background: Technology has changed the way men who have sex with men (MSM) seek sex and socialize, which may impact the implementation of respondent-driven sampling (RDS) among this population. Initial participants (also known as seeds) are a critical consideration in RDS because they begin the recruitment chains. However, little information is available on how the online-recruited seeds may effect RDS implementation.Objective: The objectives of this study were to compare (1) online-recruited versus offline-recruited seeds and (2) subsequent recruitment chains of online-recruited versus offline-recruited seeds.Methods: Between 2012 and 2014, we recruited MSM using RDS in Vancouver, Canada. RDS weights were used with logistic regression to address each objective.Results: A total of 119 seeds were used, 85 of whom were online-recruited seeds, to recruit an additional 600 MSM. Compared with offline-recruited seeds, online-recruited seeds were less likely to be HIV-positive (OR 0.34, 95% CI 0.13-0.88), to have attended a gay community group (AOR 0.33, 95% CI 0.12-0.90), and to feel gay community involvement was "very important" (AOR 0.16, 95% CI 0.03-0.93). Online-recruited seeds were more likely to ask a sexual partner's HIV status always versus 1 year (AOR 1.65, 95% CI 1.06-2.56). Recruits of online seeds were more likely to be out as gay for longer (eg, 11-21 vs 1-4 years, AOR 2.22, 95% CI 1.27-3.88) and have fewer Facebook friends (eg, 201-500 vs >500, AOR 1.69, 95% CI 1.02-2.80).Conclusions: Online-recruited seeds were more prevalent, recruited fewer participants, but were different from those recruited offline. This may therefore help create a more diverse overall sample. Our work has shown the value of geosocial networking apps for aiding RDS recruitment efforts, especially when faced with slow participation uptake by other means. Understanding the degree to which networks interact will be an important next step in confirming the efficacy of online RDS recruitment strategies.