Impact of a Distress Brief Intervention on Suicidal Ideation, Suicide Attempts and Self-harm in the immediate, short and longer term: a mixed method evaluation study protocol

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Background The Distress Brief Intervention (DBI) is a new approach aimed at reducing distress and is embedded in Scotland’s suicide prevention and mental health strategies. People in distress can be referred to DBI by front-line healthcare and emergency service staff. DBI promises to make contact within 24 hours and offers people in distress 14 days of compassionate, community-based, and person-centred support. The development of NHS 24, a new specialist National Health Service Mental Health Hub (MHH) embedded in Scotland’s urgent care service created a new national route to access DBI. Protocol This study is a mixed-method evaluation of the impact of DBI on suicidal ideation, suicide attempts and self-harm in the immediate, short and longer term among people presenting in distress. Evaluation participants include adults who access DBI, DBI staff, individuals who have used NHS 24 MHH, and GPs. A combination of analysis of quantitative survey and linked administrative data, including a comparator group analysis, qualitative interview and focus group data will support understanding of whether and how DBI can reduce suicidal ideation, suicidal behaviour and self-harm among those presenting to front-line services in distress. A survey of General Practitioners and a review of existing literature will be used to model typical care pathways for individuals in distress and at risk of self-harm. Modelled resource use and costs will be explored. All data collected will be triangulated through a summative evidence synthesis to develop evidence-based insights and conclusions to inform policy and practice development. Discussion Understanding whether, how and why DBI has helped prevent future suicidal thoughts and behaviour in those with a history of suicidal risk will provide important insights into how the intervention can be further developed and optimised as a suicide prevention intervention.