Mapping barriers, enablers and implementation determinants to shared models of care for physical health and sexual wellbeing among young people with mental health difficulties using the Consolidated Framework for Implementation Research: A scoping review protocol.

Background: Approximately one in eight people live with mental health difficulties, with onset commonly occurring in youth. It is critical to ensure care addresses all aspects of health, including physical health and sexual wellbeing needs, to achieve positive recovery outcomes. Connecting primary and secondary healthcare providers and service users through shared models of care is a critical aspect of this. The objectives of this scoping review will be to 1) identify and describe the implementation of shared models of care which address the mental health of young people and their physical health and/or sexual wellbeing needs, and 2) identify the determinants of implementing these models of care.

Protocol: Following Joanna Briggs Institute guidelines, studies will be included if they describe shared models of care for young people (aged 10-25) in any healthcare setting, specifically addressing mental health and physical health or sexual wellbeing needs. The review will employ the Consolidated Framework for Implementation Research (CFIR) to organise and assess findings. A librarian developed the search strategy, which will be applied to Web of Science, Medline, Embase, CINAHL, and PsycINFO databases. Two independent reviewers will screen titles, abstracts and full texts, followed by data extraction and critical appraisal of included studies. Discrepancies at all stages will be resolved through discussion or by a third reviewer. Screening results will be summarised in a PRISMA flow diagram. Narrative summaries, supported by tables and figures where applicable, will address the review's objectives. Findings will undergo thematic analysis, with implementation determinants mapped deductively to CFIR.

Discussion: Findings will inform the adaptation of implementation strategies to support the implementation of policy for improving healthcare delivery to young people with mental health difficulties.

Registration: Open Science Framework ( osf.io/rj783).