CONCLUSION
Although possible methods to improve the HEART's validity and utility remain, this study demonstrates the tool's ability to identify key aspects of women's relationship dynamics to help tailor counseling to meet their needs. Such tailoring can help overcome the social and relationship barriers to oral PrEP adherence, but the process of understanding each participant's relationship profile can be time and resource intensive. Additionally, this study provides evidence for how the tool can measure the impact of counseling on these aspects of relationship dynamics. The availability of a tool such as the HEART could provide clinicians and counselors with an easy, effective, and efficient way to tailor counseling toward women's relationship dynamics and better address challenges to PrEP adherence.