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. 2017 Jul 19;12(7):e0181702. doi: 10.1371/journal.pone.0181702

Table 4. Barriers and facilitators to HIV vaccine trial participation (N = 189).

N(%)
Top 5 Facilitators
Cash compensation for my time 142(75.1)
Confidentiality regarding my participation 122(64.6)
Public transportation vouchers 121(64.0)
Gift cards 110(58.2)
Food or grocery vouchers 96(50.8)
Top 5 Barriers
Fear of side effects from the vaccine 84(44.4)
Nothing 71(37.6)
Fear of testing false positive on routine HIV testing 57(28.0)
Limited knowledge of research trials 53(28.0)
Fear of being judged as HIV positive 43(22.8)