IntroductionSuicide is a tragic outcome with devastating consequences. In 2018, Scotland experienced a 15% increase in suicide from 680 to 784 deaths. This was marked among young people, with an increase of 53% in those aged 15-24, the highest since 2007. Early intervention in those most at risk is key, but identification of individuals at risk is complex, and efforts remain largely targeted towards universal suicide prevention strategies with little evidence of effectiveness. Recent evidence suggests childhood adversity is a predictor of subsequent poor social and health outcomes, including suicide. This protocol reports on methodology for harmonising lifespan hospital contacts for childhood adversity, mental health, and suicidal behaviour. This will inform where to 1) focus interventions, 2) prioritise trauma-informed approaches, and 3) adapt support avenues earlier in life for those most at risk. MethodsThis study will follow a case-control design. Scottish hospital data (physical health SMR01; mental health SMR04; maternity/birth record SMR02; mother’s linked data SMR01, SMR04, death records) from 1981 to as recent as available will be extracted for people who died by suicide aged 10-34, and linked on Community Health Index unique identifier. A randomly selected control population matched on age and geography at death will be extracted in a 1:10 ratio. International Classification of Disease (ICD) codes will be harmonised between ICD9-CM, ICD9, ICD10-CM and ICD10 for childhood adversity, mental health, and suicidal behaviour. ResultsICD codes for childhood adversity from four key studies are reported in two categories, 1) Maltreatment or violence-related codes, and 2) Codes suggestive of maltreatment. ‘Clinical Classifications Software’ ICD codes to operationalise mental health codes are also reported. Harmonised lifespan ICD categories were achieved semi-automatically, but required labour-intensive supplementary manual coding. Cross-mapped codes are reported. ConclusionsThere is a dearth of evidence about touchpoints prior to suicide. This study reports methods and harmonised ICD codes along the lifespan to understand hospital contact patterns for childhood adversity, which come to the attention of hospital practitioners.

Accessible SummaryWhat is known on the subject? Suicide prevention is an international healthcare priority. There is an urgent need to use approaches that are helpful and follow research evidence. Safety planning is now widely used in suicide prevention; however, it was developed for use with adults, and little is known about its effectiveness for children/young people. What the paper adds to existing knowledge? This systematic scoping review brings together all research evidence since 2008 that reported how effective safety planning is for children/young people. Findings highlight that when healthcare professionals help children/young people who are suicidal, they need to ensure that the safety plan is completed collaboratively with healthcare professionals and children/young people and that it is appropriate for their age and development. There is also need for healthcare professionals to better recognize and respond to the needs of parents/carers who are caring for a child/young person with suicidal ideations/behaviours. What are the implications for practice? There is some research indicating that safety planning is effective for use with children/young people, but such evidence has primarily been obtained from females and there is need for more evidence from male study populations. Further research on its use is needed for certain groups of children/young people including those who are care experienced, or identify as lesbian, gay, bisexual and transgender. This review highlighted that healthcare professionals need specific training before they deliver safety planning for children/young people. It was identified that parents/carers have additional needs and should be involved in safety planning. An additional resource specifically for parents/carers should be developed. AbstractIntroductionSuicide is a leading cause of death for children and young people and its prevention is a global priority. Many Mental Health Services employ safety planning as a brief intervention. There is some evidence of safety planning effectiveness for adults, but little is known about its effectiveness with young people.AimTo synthesize research reporting safety planning effectiveness for children/young people with suicidal ideation and identify good practice recommendations.Inclusion criteriaThe review relates to safety planning around suicide prevention for children/young people aged less than 18 years, even if it was within a wider intervention. The review was inclusive of all clinical areas (including mental health, primary care, etc), any geographical location or social economic status and inclusivity around the method of delivery.MethodsA systematic scoping review of literature reporting effectiveness data for the use of safety planning with children/young people with suicidal ideation. The systematic scoping review protocol (pre‐registered with Open Science Framework) followed Joanna Briggs Institute conduct guidance and PRISMA‐ScR checklist.Data analysis and presentationFifteen studies were reported during 2008–2021. Overall, there is promising, but limited, evidence of effectiveness for safety planning for children/young people but with complete evidence gaps for some demographic sub‐groups. Evidence determined that healthcare professionals should deliver a safety planning intervention that is completed collaboratively, developmentally appropriate, and recognizes parental/carer involvement.Discussion and implications for practiceFurther research is needed but current evidence suggests safety planning should be a routine part of care packages for children/young people with suicidal ideation proportionate to their needs. Developing/implementing these plans needs bespoke health professional training and additional support and resources for parents/carers should be developed.

ObjectivesChildhood adversity (CA) carries an increased risk of developing later mental health (MH) problems and suicidal behaviour. This study aimed to summarise lifetime hospital attendances for CA and MH in young people who later died by suicide. ApproachThis study is a retrospective longitudinal case control study. Lifetime Scottish inpatient acute and psychiatric records were linked to death records and summarised for individuals born since 1981 who died by suicide in the period 1991-2017 (cases), and controls (1:10) matched on sex, age, and postcode. Relevant records were coded MH (including self-harm) and/or CA. Descriptive statistics and odds ratios (OR) were computed. ResultsData for 2,477 and 24,777 ‘cases’ and ‘controls’ were extracted, of whom 2,106 cases (85%) and 13,589 controls (55%) had lifespan hospital records. Mean age at death for cases was 23.7 (SD=4.9) and 75.9% were male. Psychiatric records represented 11.6% and 1.4% of records for cases and controls, respectively. For the age range 10-18, Maltreatment & violence-related codes were recorded for 160 (7.6%) cases and 371 (2.7%) controls, corresponding to OR=2.9 (95%CI: 2.4-3.6). This was compared with MH at 458 (21.7%) cases and 560 (4.1%) controls and OR=6.5 (95%CI: 5.7-7.4). The highest adjusted ORs were for self-harm episodes recorded in general hospital with aORmale=6.56 (95%CI: 4.96-8.68) and aORfemale=6.87 (95%CI: 4.99-9.48). ConclusionAll CA and MH presentations in inpatient hospital records were associated with greater risk of subsequent suicide, with the strongest association for self-harm.