نتایج جستجو برای: respondent driven sampling
تعداد نتایج: 438067 فیلتر نتایج به سال:
Background In the framework of network sampling, random walk (RW) based estimation techniques provide many pragmatic solutions while uncovering the unknown network as little as possible. Despite several theoretical advances in this area, RW based sampling techniques usually make a strong assumption that the samples are in stationary regime, and hence are impelled to leave out the samples collec...
BACKGROUND Respondent-driven sampling (RDS) is a chain-referral method that is being widely used to recruit most at-risk populations. Because the method is respondent driven, observations are dependent. However, few publications have focused on methodological challenges in the analysis of data collected by RDS. METHODS In this article, we propose a method for estimating the variance of the HI...
OBJECTIVE To collect baseline measurements of HIV and syphilis prevalence and sexual risk behaviours among men who have sex with men (MSM) in Agadir and Marrakech, Morocco, and provide strategic information to improve outreach programmes. METHODS AND DESIGN Respondent-driven sampling was used to recruit men who reported having anal sex with another man in the last 6 months, aged 18 years and ...
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