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Table 1 Qualitative and mixed methods research domains and topics by research aim

From: Testing a social network approach to promote HIV self-testing and linkage to care among fishermen at Lake Victoria: study protocol for the Owete cluster randomized controlled trial

Domain Aim 1 topics Aim 2 topics Aim 3 topics
Mechanisms of intervention action • Attributions for decision to test
◦ Role of promoter: perceived influence
◦ Other barriers and facilitators to testing
• Attitudes and expectancies re: use of HIVST
• Perceived norms re: testing within close social network
• Vicarious efficacy re: HIV self-testing (seeing peers successfully use HIVST)
• Attributions for decision to link
◦ Role of promoter: perceived influence
◦Role of incentives
• Attitudes and expectancies re: ART and PrEP
• Perceived norms re: linkage to ART and PrEP within close social network
• Vicarious efficacy re: linkage (seeing peers successfully link to ART or PrEP)
• Attributions for ongoing engagement in HIV care (ART) and prevention (PrEP)
◦ Role of promoter: perceived influence
◦ Role of incentives
• Perceived norms re: engagement in ART and PrEP within close social network
• Vicarious efficacy (seeing peers successfully engaged in ART or PrEP)
Factors impacting effectiveness of intervention components • Knowledge of how to use self-tests (effectiveness of promoter training)
• Relationship factors (e.g., HIV status disclosure, HIV seroconcordant/discordant status)
• Psychological factors (e.g., perceived risk, fear, fatalism, self-efficacy to test for HIV)
• Knowledge of benefits of ART and PrEP (effectiveness of promoter training)
• Relationship factors (e.g., HIV status disclosure, partner support)
• Psychological factors (e.g., expectancies, fear, fatalism, self-efficacy to link)
• Experiences with ART/PrEP (perceived emotional, physical benefits/costs)
• Effective management of side effects
• Relationship factors (e.g., relationship change, disclosure, partner support)
• Psychological factors (e.g., ART/PrEP fatigue, changes in risk, self-efficacy)
Barriers and facilitators of implementation • Role of promoter: salience, trust towards promoter within network
• Promoters’ self-perceptions and motivation
• Individual mobility and distance to clinic
• Past and current experiences with providers/perceived quality of care
• Individual mobility and distance to clinic
• Past and current experiences with providers/perceived quality of care