Participants in this group are clients of Unlocking Doors who meet eligibility criteria and choose to enroll in the study. They receive the health coach intervention, which includes general health and sexual health discussions, HIV and syphilis testing, PrEP education, PrEP eligibility screening, linkage to PrEP care, and referrals to other health or re-entry services. Their PrEP knowledge, interest, and engagement, as well as feasibility and acceptability of the model, are assessed throughout the study.

The intervention integrates a PrEP-focused health coach into Unlocking Doors' re-entry services. The health coach provides clients with general health guidance, sexual health education, HIV and syphilis testing, PrEP education, PrEP eligibility screening, and linkage to PrEP care. The coach also offers ongoing navigation and referrals to medical, behavioral health, and re-entry services as needed. The aim of the intervention is to increase PrEP awareness, interest, and uptake among justice-involved individuals while assessing feasibility, acceptability, and appropriateness of embedding a health coach within legal re-entry services.

Feasibility will be assessed by the proportion of Unlocking Doors clients who engage with the health coach. This indicator reflects whether the health coach can be effectively integrated into existing re-entry workflows.

Acceptability will be assessed using custom questions developed by our team and modified question items from the Scales for Participant Alliance with Recovery Coach (SPARC) scale, and which will be asked of clients and staff. These questions will assess satisfaction, comfort, and perceived usefulness of health coach interactions. Response options will be rated on a Likert scale ranging from 1 - 5, with higher scores indicating better perceptions of acceptability. Qualitative feedback will supplement these ratings to capture overall acceptability.

Appropriateness will be assessed using custom questions developed by our team and modified question items from the Scales for Participant Alliance with Recovery Coach (SPARC) scale. These questions assess perceived relevance, fit, and value of integrating a health coach into Unlocking Doors' services, as well as how well the model aligns with client needs. Response options will be rated on a Likert scale ranging from 1 - 5, with higher scores indicating better perceptions of appropriateness. Qualitative feedback will supplement these ratings to capture overall appropriateness.