Enrollment and HIV incidence among at-risk volunteers enrolled for HIV prevention preparatory studies stratified by CRC and, where appropriate, sex.

<p><sup>*</sup> IAVI support initiated in 2004</p><p><sup>**</sup> p value for the incident rate ratio calculator comparing HIV incidence by sex, where study populations are stratified by sex</p><p><sup>***</sup> For additional details on recruitment, demographics, follow up and earlier reports of HIV incidence. With the exception of Feldblum 2012, all the data above and in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0116100#pone.0116100.t003" target="_blank">Table 3</a> represents new analyses and additional follow up time.</p><p><sup>▪</sup> Cohort enrollment currently open</p><p><sup>▪▪</sup> Recruited women from 16 years old; the only cohort to recruit <18 year olds</p><p><sup>∞</sup> HIV positive partner in the DC cohort is on ART, too few to analyze by volunteer sex (87 negative men, 65 women)</p><p>PY: Person years, IQR: Interquartile range, CI: Confidence Interval, CRC: Clinical Research Center, DC: Discordant Couple (reported sex applies to enrolled HIV uninfected volunteers, HIV infected volunteers were all ART-naive except where noted), NA: reference not available, data not previously published</p><p>Enrollment and HIV incidence among at-risk volunteers enrolled for HIV prevention preparatory studies stratified by CRC and, where appropriate, sex.</p>