Best strategies for reducing the suicide rate in Australia.

OBJECTIVES: There is accumulating evidence about effectiveness of a number of suicide prevention interventions, and a multilevel systems approach seems promising in reducing suicide risk. This approach requires that components ranging from individual-level to public health interventions are implemented simultaneously in a localised region. This paper presents estimated reductive effects on suicide attempts and deaths that might be expected in Australia if active components of the systems approach were to be implemented. METHOD: The study estimated population preventable fractions which indicate the extent to which suicide attempts and deaths might be decreased if the each of the proposed interventions was fully implemented. The population preventable fractions were based on the best available evidence available in the literature for the risk ratio for each intervention. Prevalence estimates were assessed for each component of the proposed systems approach: reducing access to suicide means, media guidelines, public health campaigns, gatekeeper programmes, school programmes, general practitioner training, psychotherapy and co-ordinated/assertive aftercare. RESULTS: There was insufficient evidence available for the impact of a number of strategies, including frontline staff gatekeeper training, on either suicide attempts or deaths. Taking prevalence of exposure to the intervention into consideration, the strategies likely to bring about the strongest reduction in suicide attempts were psychosocial treatments and co-ordinated/assertive aftercare. The greatest impact on reductions in suicide deaths was found for psychosocial treatment, general practitioner training, gatekeeper training and reducing access to means of suicide. CONCLUSION: The evidence regarding the overall efficacy of the systems approach is important in identifying what strategies should be prioritized to achieve the biggest impact. The findings of the population preventable fraction calculations indicate that the systems approach could lead to significant reduction in suicide attempts and suicide deaths in Australia. Potential synergistic effects between strategies included in the approach could further increase the impact of implemented strategies.

Appraising risk factors of aggression in children and adolescents at psychiatric inpatient units.

This study examined predictors of aggression and assessed whether different subgroups of children and young people (CYP) display varying risks of aggressive incidents during hospitalization. Data from 10,090 children admitted to the psychiatric inpatient units of Cincinnati Children's Hospital between April 2010 and June 2021 were analysed. Multivariable logistic regression models were used to determine significant predictors associated with aggression, followed by average marginal effects and cluster analyses to rank and establish clusters by the order of predictor importance. About 32.5% reported positive history of an aggressive incident. The mean BRACHA score was doubled compared to those without a prior history. The primary analysis showed that both younger and male CYPs had higher odds of aggressive incidents. We also found that CYP with an African descent, not being able to live with both biological parents, those who reported positive history of psychiatric hospitalisation, and prior externalising behaviours had higher odds of aggressive incidents. These findings have important clinical and public health implications, as they provide valuable knowledge for healthcare professionals to improve prevention strategies for aggression amongst this vulnerable population.

Study protocol for a mixed methods prospective cohort study to explore experiences of care following a suicidal crisis in the Australian healthcare system.

INTRODUCTION: For individuals presenting to the emergency department (ED) for a suicide attempt, the period after discharge from hospital is marked by heightened vulnerability for further suicide attempts. Effective care following a suicidal crisis has the potential to significantly decrease this risk. The current study aims to examine the impact of the LifeSpan multilevel suicide prevention model on experiences of care following a suicidal crisis. Perspectives from healthcare consumers (individuals who have presented to the ED following a suicidal crisis), carers, and health professionals will be explored. The LifeSpan model is currently being evaluated as a high-fidelity trial in four geographically defined regions in New South Wales, Australia. METHODS AND ANALYSIS: This study will use a mixed methods prospective cohort design. Quantitative data collection includes a structured survey, administered to healthcare consumers from LifeSpan sites and control sites. Two cohorts of healthcare consumers will be recruited 12 months apart with baseline assessment occurring within 18 months of the ED presentation, and follow-up 12 months after the initial assessment. Survey participants will be recruited online and through participating EDs, mental health organisations and aftercare services. Qualitative interview data from healthcare consumers, carers who have accompanied a loved one to the ED following a suicidal crisis and health professionals who provide care to people at risk of suicide will be collected concurrently with the recruitment of the first cohort of survey participants. Purposive and convenience sampling techniques will be used for recruitment of interview participants. The primary outcome for this study will be healthcare consumers' experiences of service provided at the ED. Analysis will be undertaken of the change over time within LifeSpan sites, as well as between LifeSpan sites and control sites, using mixed effects repeated measures models as principal means of data analysis. ETHICS AND DISSEMINATION: This research has been approved by the Hunter New England Human Research Ethics Committee (HREC/17/HNE/144). Results will be disseminated via conferences and peer-reviewed journals. TRIAL REGISTRATION NUMBER: ACTRN12617000457347.