Aseline by age group at enrollment, while Figure 1b shows HSV-2 incidence during follow-up by age group at enrollment. HSV-2, herpes simplex virus type 2. doi:10.1371/journal.pone.0091513.gDiscussionIn this analysis of participants in the iPrEx trial of daily oral FTC/TDF PrEP, we found no association between FTC/TDF and incidence of HSV-2 infection, even after accounting for actual use of FTC/TDF
T among participants living in Peru (46.0 ), Brazil (37.8 ), and Ecuador (37.3 ), with lower prevalence among participants living in Thailand (6.4 ), South Africa (17.6 ), and the United States (27.1 ; P,0.001). Randomization group was not associated with HSV-2 prevalence at baseline (P = 0.44). In multivariable analysis, all factors remained significantly associated with HSV-2 prevalence with the
T among participants living in Peru (46.0 ), Brazil (37.8 ), and Ecuador (37.3 ), with lower prevalence among participants living in Thailand (6.4 ), South Africa (17.6 ), and the United States (27.1 ; P,0.001). Randomization group was not associated with HSV-2 prevalence at baseline (P = 0.44). In multivariable analysis, all factors remained significantly associated with HSV-2 prevalence with the
T among participants living in Peru (46.0 ), Brazil (37.8 ), and Ecuador (37.3 ), with lower prevalence among participants living in Thailand (6.4 ), South Africa (17.6 ), and the United States (27.1 ; P,0.001). Randomization group was not associated with HSV-2 prevalence at baseline (P = 0.44). In multivariable analysis, all factors remained significantly associated with HSV-2 prevalence with the
D ,25 years (7.1 per 100 person-years) and the lowest rate among participants aged 40 years (1.6 per 100 person-years; P trend = 0.001). Country of residence was also associated with HSV-2 incidence, with theDaily Oral FTC/TDF PrEP and HSV-2 among MSMthere were 72 ulcer AEs classified as Grade 2 or above, with 43 participants (4.3 ) having 1 ulcer AE. Among the 72 ulcer AEs, 23 (31.9 ) were conf
D ,25 years (7.1 per 100 person-years) and the lowest rate among participants aged 40 years (1.6 per 100 person-years; P trend = 0.001). Country of residence was also associated with HSV-2 incidence, with theDaily Oral FTC/TDF PrEP and HSV-2 among MSMthere were 72 ulcer AEs classified as Grade 2 or above, with 43 participants (4.3 ) having 1 ulcer AE. Among the 72 ulcer AEs, 23 (31.9 ) were conf
D ,25 years (7.1 per 100 person-years) and the lowest rate among participants aged 40 years (1.6 per 100 person-years; P trend = 0.001). Country of residence was also associated with HSV-2 incidence, with theDaily Oral FTC/TDF PrEP and HSV-2 among MSMthere were 72 ulcer AEs classified as Grade 2 or above, with 43 participants (4.3 ) having 1 ulcer AE. Among the 72 ulcer AEs, 23 (31.9 ) were conf
D ,25 years (7.1 per 100 person-years) and the lowest rate among participants aged 40 years (1.6 per 100 person-years; P trend = 0.001). Country of residence was also associated with HSV-2 incidence, with theDaily Oral FTC/TDF PrEP and HSV-2 among MSMthere were 72 ulcer AEs classified as Grade 2 or above, with 43 participants (4.3 ) having 1 ulcer AE. Among the 72 ulcer AEs, 23 (31.9 ) were conf