Impacts of Epic MyChart and Epic Healthy Planet on Clinical, Engagement, Safety, Experience, Efficiency, and Equity: A Scoping Review Protocol

Epic MyChart is a patient portal integrated with the Epic electronic health record system, enabling secure access to health information, communication with clinicians, and self-management tools. Despite increasing adoption in the UK and internationally, evidence on its impacts on clinical outcomes, engagement, safety, experience, efficiency, and equity is fragmented. This scoping review will map existing research on MyChart, identify barriers and facilitators to uptake, and explore technical and operational determinants influencing implementation. We will conduct a scoping review guided by Arksey and O'Malley's framework, refined by Levac et al., and report according to PRISMA-ScR and PRISMA-Equity guidelines. Eligible studies will include original research evaluating MyChart as a patient portal or as part of Epic Healthy Planet programmes, reporting outcomes related to patient-reported measures, clinical effectiveness, engagement, safety, efficiency, or equity. Searches will cover MEDLINE, CINAHL, PsycINFO, EMBASE, Cochrane CENTRAL, Scopus, Web of Science, trial registries, and grey literature. Two reviewers will independently screen records and extract data on study characteristics, outcomes, equity factors (PROGRESS-Plus), and implementation determinants. Quantitative findings will be synthesised narratively using SWiM guidance; qualitative data will undergo thematic synthesis.