Respondent-driven sampling as a recruitment method for men who have sex with men in southern sub-Saharan Africa: a cross-sectional analysis by wave.
Respondent-driven sampling as a recruitment method for men who have sex with men in southern sub-Saharan Africa: a cross-sectional analysis by wave.
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DOI：
10.1136/sextrans-2015-052184
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发表时间：
2016-06
影响因子：
3.6
通讯作者：
Baral S
中科院分区：
文献类型：
--
作者：
Stahlman S;Johnston LG;Yah C;Ketende S;Maziya S;Trapence G;Jumbe V;Sithole B;Mothopeng T;Mnisi Z;Baral S
应答者驱动抽样（RDS）是招募男男性行为者（MSM）的一种流行方法。我们的目标是描述RDS在三个南部非洲国家接触MSM进行HIV检测的能力。通过RDS收集的数据在莱索托（N=318），斯威士兰（N=310），马拉维（N=334）的男男性行为者进行了分析，波，以表征样本特征的差异。种子是从男同性恋运动附属的社区组织招募的。在一次研究访问中对男子进行了访谈，并进行了艾滋病毒检测。使用趋势卡方检验检查各波类别之间的比例差异。每个研究中心最多可达到13-19个招募波。在莱索托，同性恋者的比例随着波浪的增加而下降（49%至27%，p<0.01）。在斯威士兰和莱索托，对肛交是艾滋病毒传播风险最高的性行为的认识呈波浪式下降（39%至23%，p<0.05，37%至19%，p<0.05）。在马拉维，曾经接受过一次以上艾滋病毒检测的参与者比例呈波浪式下降（31%至12%，p<0.01）。在莱索托和马拉维，艾滋病毒检测呈阳性的流行率呈波浪式下降（48%至15%，p<0.01和23%至11%，p<0.05）。在艾滋病毒感染者中，不知道自己状况的人的比例在所有研究地点都呈波浪式上升，尽管这一发现在统计上并不显著。RDS延伸到招募波更深的可能是一个有前途的方法，达到不同程度的艾滋病毒预防需求的男男性行为者。
Respondent-driven sampling (RDS) is a popular method for recruiting men who have sex with men (MSM). Our objective is to describe the ability of RDS to reach MSM for HIV testing in three southern African nations. Data collected via RDS among MSM in Lesotho (N=318), Swaziland (N=310), and Malawi (N=334) were analyzed by wave in order to characterize differences in sample characteristics. Seeds were recruited from MSM-affiliated community-based organizations. Men were interviewed during a single study visit and tested for HIV. Chi-square tests for trend were used to examine differences in the proportions across wave category. A maximum of 13–19 recruitment waves were achieved in each study site. The percentage of those who identified as gay/homosexual decreased as waves increased in Lesotho (49% to 27%, p<0.01). In Swaziland and Lesotho, knowledge that anal sex was the riskiest type of sex for HIV transmission decreased across waves (39% to 23%, p<0.05, and 37% to 19%, p<0.05). The percentage of participants who had ever received more than one HIV test decreased across waves in Malawi (31% to 12%, p<0.01). In Lesotho and Malawi, the prevalence of testing positive for HIV decreased across waves (48% to 15%, p<0.01 and 23% to 11%, p<0.05). Among those living with HIV, the proportion of those unaware of their status increased across waves in all study sites although this finding was not statistically significant. RDS that extends deeper into recruitment waves may be a promising method of reaching MSM with varying levels of HIV prevention needs.