Fig. 1

Purposeful selection of participants for IDIs based on trial arm allocation, risk behaviour and adherence

* One participant co-enrolled and in the main trial analysis is treated as being in the deferred arm to which they were originally allocated. However, they are treated as being in the immediate arm here as this was how they were selected for IDI

** Additional interviews were conducted with a trans woman, a person who seroconverted during the study, and a participant who decided not to start PrEP after the deferral period