应答驱动抽样作为南部撒哈拉以南非洲地区男男性行为者的招募方法：按波次进行的横断面分析。
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.
机构信息
Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Center for Public Health and Human Rights, Baltimore, Maryland, USA.
Department of Global Health Sciences, University of California San Francisco, San Francisco, California, USA.
出版信息
Sex Transm Infect. 2016 Jun;92(4):292-8. doi: 10.1136/sextrans-2015-052184. Epub 2015 Sep 30.
OBJECTIVES
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.
METHODS
Data collected via RDS among MSM in Lesotho (N=318), Swaziland (N=310) and Malawi (N=334) were analysed by wave in order to characterise differences in sample characteristics. Seeds were recruited from MSM-affiliated community-based organisations. Men were interviewed during a single study visit and tested for HIV. χ(2) tests for trend were used to examine differences in the proportions across wave category.
RESULTS
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.
CONCLUSIONS
RDS that extends deeper into recruitment waves may be a promising method of reaching MSM with varying levels of HIV prevention needs.
目的
应答驱动抽样（RDS）是招募男男性行为者（MSM）进行 HIV 检测的一种流行方法。我们的目的是描述 RDS 在三个南部非洲国家招募 MSM 进行 HIV 检测的能力。
方法
通过在莱索托（N=318）、斯威士兰（N=310）和马拉维（N=334）的 MSM 中进行 RDS 收集的数据，按波次进行分析，以描述样本特征的差异。种子是从 MSM 附属的社区组织招募的。男性在一次研究访问中接受访谈并接受 HIV 检测。χ(2)趋势检验用于检验各波次类别之间的比例差异。
结果
在每个研究地点最多进行了 13-19 次招募波次。在莱索托，同性恋/同性性行为的比例随着波次的增加而降低（49%至 27%，p<0.01）。在斯威士兰和莱索托，关于肛交是 HIV 传播风险最大的性行为的知识随着波次的增加而减少（39%至 23%，p<0.05，和 37%至 19%，p<0.05）。在马拉维，曾接受过不止一次 HIV 检测的参与者比例随着波次的增加而减少（31%至 12%，p<0.01）。在莱索托和马拉维，HIV 检测阳性的比例随着波次的增加而减少（48%至 15%，p<0.01 和 23%至 11%，p<0.05）。在所有研究地点，HIV 阳性且不知道自己状况的比例随着波次的增加而增加，但这一发现无统计学意义。
结论
扩展到更深招募波次的 RDS 可能是一种有前途的方法，可以接触到具有不同 HIV 预防需求的 MSM。
Zotero 插件