Table 1.

Key themes from the IDIs of relevance to the analysis

Topic area	Themes
Sexual and reproductive health	Contraceptive and condom use; STI history; HIV testing history; fertility desires
Sexual Relationships	Duration of relationships; quality of communication; decisionmaking about safe sex and contraception; conflict and violence; multiple partners, trust, and partner infidelity; transactional sex; HIV testing with partner
Knowledge and beliefs about PrEP	Beliefs about PrEP efficacy; understanding of dosing requirements; concerns about side effects; community awareness of PrEP; sources of information about PrEP; beliefs about the need for condom use with PrEP
HIV risk perceptions	Perceptions of risk from partner infidelity and alcohol use; risk as a sex worker; condom use and condom failure; risk from sexual violence; being part of a generation at risk; perceptions of high HIV prevalence in community; risk of infection with STIs other than HIV; impact of HIV risk perceptions on PrEP use; perceptions of ongoing HIV risk
PrEP adherence	Barriers and facilitators to adherence; self-reported adherence; reasons for initiating, discontinuing, and restarting PrEP
PrEP disclosure to partner	Informing vs seeking permission from partner for PrEP taking; partner response to PrEP disclosure; conflict following disclosure; concealing PrEP from partner
Changes in relationship with partner during the study	Intensification of inter-personal conflict; termination of relationships; reduction in sexual intimacy; condom disinhibition; partner reduction; acquisition of new partners; changes in perceptions of personal HIV risk; improved communication; no change in sexual behaviour