Department of Health and Nutrition Sciences, Brooklyn College, City University of New York, Brooklyn, NY 11210, USA.
AIDS Behav. 2013 Feb;17(2):773-8. doi: 10.1007/s10461-012-0345-4.
We adapted time-space sampling to enroll men who have sex with men (MSM) off Craigslist.org for face-to-face interviews. Men responding to our ads (n = 322) were instructed to either complete an online pre-screening survey (to determine preliminary eligibility) or call our office directly. Of those taking further initiative to enroll, 29 % (n = 41) called directly and 71 % (n = 101) opted to first complete the online survey. Participants scheduled via online pre-screening were more likely to present for their face-to-face assessment than men deemed eligible directly via phone screening (72.3 vs. 47.1 %). Online pre-screening was a useful tool to offer potential participants when recruiting on Craigslist and improved study enrollment.
我们采用时空抽样法，通过 Craigslist.org 招募男男性行为者（MSM）接受面对面访谈。回应我们广告的男性（n=322）被指示要么完成在线预筛查调查（以确定初步资格），要么直接打电话给我们的办公室。在进一步主动登记的人中，29%（n=41）直接打电话，71%（n=101）选择先完成在线调查。通过在线预筛查安排的参与者比通过电话筛查直接确定符合条件的参与者更有可能参加面对面评估（72.3%比 47.1%）。在线预筛查是 Craigslist 招募潜在参与者时的有用工具，并提高了研究的参与率。
