Study design and procedures
LBB, malaria
MALARIA
Prior to randomization, study villages were pair‐matched within community on village size, number of CHWs and proximity to a trading centre or highway. Randomization was conducted at a meeting of community leaders, where representatives from each matched pair selected and opened sealed envelopes to reveal the trial arm. Community leaders, CHWs, study staff and participants were not blinded to the randomization arm, but the study statistician (LBB) was blinded until trial completion.In both intervention and control villages, an existing CHW who could speak English and conduct data collection using a phone app was selected for trial participation. In both arms, the selected CHW received training on routine HIV prevention, including key messaging about HIV testing, PrEP and PEP. For each CHW, 20 households under their care and with at least one person aged 15–39 years were randomly selected for study participation.In all villages, CHWs conducted mobilization about study activities, including announcements at religious gatherings and community meetings. During enrolment, CHWs introduced study staff to the household head who provided verbal consent for household participation and general information about their household: number of members, their relationship to the household head and their age. Members of consenting households who were aged ≥15 years then provided individual written informed consent and were screened for eligibility (HIV negative by country‐standard testing algorithm, and with current or anticipated HIV risk).In villages randomized to the control arm, participants reporting risk for HIV were referred to local health facilities for routine HIV prevention services. These services included confirmatory screening by an MoH health worker using standard tools, routine provision of PrEP or PEP if eligible and provision of HIV self‐test kits if requested and available. In villages randomized to the intervention, CHWs delivered the dynamic choice HIV prevention (DCP) model with clinician support, as detailed below. CHWs in both arms continued their existing MoH duties, such as the distribution of malaria bed nets and activities related to maternal‐child health. Table Baseline characteristics of study participants, by arm and overallAmong participants reporting a primary partner.Among participants reporting their primary partner is with HIV.