Background Individuals with mental health difficulties have a higher risk of chronic disease and a lower life expectancy than the general population due, at least in part, to higher rates of modifiable health behaviours including smoking, alcohol and drug consumption, inadequate physical activity, and poor diet. The delivery of preventive care by healthcare professionals in mental health settings is recommended to improve health and wellbeing and reduce the risk of chronic disease in this population. However, there are barriers to the implementation of preventive care within these settings. Aim This scoping review aims to identify and narratively synthesise the available evidence of the barriers and enablers of healthcare professionals delivering preventive care for all of these modifiable health behaviours (smoking, alcohol and drug use, physical activity, and diet) in mental health settings. Methods This review will be guided by the Joanna Briggs Institute (JBI) methodology for scoping reviews and will be conducted and reported in accordance with the PRISMA Extension for Scoping Reviews (PRISMA-ScR). The following databases will be searched: Medline All, PsycINFO, Embase and CINAHL. Two independent reviewers will conduct initial title and abstract screening, followed by full-text screening for eligibility. Two independent reviewers will conduct data extraction. Data will be deductively analysed using the Theoretical Domains Framework (TDF) with results presented narratively. Conclusion This scoping review will provide a comprehensive overview of the factors influencing the delivery of chronic disease preventive care in mental health settings. The findings will inform future research, practice, and policy in these settings.
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