Improving Suicide Prevention Through Evidence-Based Strategies: A Systematic Review

Impact of different interventions on preventing suicide and suicide attempt among children and adolescents in the United States: a microsimulation model study

Introduction

Despite considerable investment in suicide prevention since 2001, there is limited evidence for the effect of suicide prevention interventions among children and adolescents. This study aimed to estimate the potential population impact of different interventions in preventing suicide-related behaviors in children and adolescents.

Methods

A microsimulation model study used data from national surveys and clinical trials to emulate the dynamic processes of developing depression and care-seeking behaviors among a US sample of children and adolescents. The simulation model examined the effect of four hypothetical suicide prevention interventions on preventing suicide and suicide attempt in children and adolescents as follows: (1) reduce untreated depression by 20, 50, and 80% through depression screening; (2) increase the proportion of acute-phase treatment completion to 90% (i.e., reduce treatment attrition); (3) suicide screening and treatment among the depressed individuals; and (4) suicide screening and treatment to 20, 50, and 80% of individuals in medical care settings. The model without any intervention simulated was the baseline. We estimated the difference in the suicide rate and risk of suicide attempts in children and adolescents between baseline and different interventions.

Results

No significant reduction in the suicide rate was observed for any of the interventions. A significant decrease in the risk of suicide attempt was observed for reducing untreated depression by 80%, and for suicide screening to individuals in medical settings as follows: 20% screened: -0.68% (95% credible interval (CI): -1.05%, -0.56%), 50% screened: -1.47% (95% CI: -2.00%, -1.34%), and 80% screened: -2.14% (95% CI: -2.48%, -2.08%). Combined with 90% completion of acute-phase treatment, the risk of suicide attempt changed by -0.33% (95% CI: -0.92%, 0.04%), -0.56% (95% CI: -1.06%, -0.17%), and -0.78% (95% CI: -1.29%, -0.40%) for reducing untreated depression by 20, 50, and 80%, respectively. Combined with suicide screening and treatment among the depressed, the risk of suicide attempt changed by -0.27% (95% CI: -0.dd%, -0.16%), -0.66% (95% CI: -0.90%, -0.46%), and -0.90% (95% CI: -1.10%, -0.69%) for reducing untreated depression by 20, 50, and 80%, respectively.

Conclusion

Reducing undertreatment (the untreated and dropout) of depression and suicide screening and treatment in medical care settings may be effective in preventing suicide-related behaviors in children and adolescents.

Gone Too Soon: priorities for action to prevent premature mortality associated with mental illness and mental distress

Globally, too many people die prematurely from suicide and the physical comorbidities associated with mental illness and mental distress. The purpose of this Review is to mobilise the translation of evidence into prioritised actions that reduce this inequity. The mental health research charity, MQ Mental Health Research, convened an international panel that used roadmapping methods and review evidence to identify key factors, mechanisms, and solutions for premature mortality across the social-ecological system. We identified 12 key overarching risk factors and mechanisms, with more commonalities than differences across the suicide and physical comorbidities domains. We also identified 18 actionable solutions across three organising principles: the integration of mental and physical health care; the prioritisation of prevention while strengthening treatment; and the optimisation of intervention synergies across social-ecological levels and the intervention cycle. These solutions included accessible, integrated high-quality primary care; early life, workplace, and community-based interventions co-designed by the people they should serve; decriminalisation of suicide and restriction of access to lethal means; stigma reduction; reduction of income, gender, and racial inequality; and increased investment. The time to act is now, to rebuild health-care systems, leverage changes in funding landscapes, and address the effects of stigma, discrimination, marginalisation, gender violence, and victimisation.

Suicide risk assessment and suicide risk management protocol for the Texas Youth Depression and Suicide Research Network

Introduction

Suicide prevention research is a national priority, and national guidance includes the development of suicide risk management protocols (SRMPs) for the assessment and management of suicidal ideation and behavior in research trials. Few published studies describe how researchers develop and implement SRMPs or articulate what constitutes an acceptable and effective SRMP.

Methods

The Texas Youth Depression and Suicide Research Network (TX-YDSRN) was developed with the goal of evaluating screening and measurement-based care in Texas youth with depression or suicidality (i.e., suicidal ideation and/or suicidal behavior). The SRMP was developed for TX-YDSRN through a collaborative, iterative process, consistent with a Learning Healthcare System model.

Results

The final SMRP included training, educational resources for research staff, educational resources for research participants, risk assessment and management strategies, and clinical and research oversight.

Conclusion

The TX-YDSRN SRMP is one methodology for addressing youth participant suicide risk. The development and testing of standard methodologies with a focus on participant safety is an important next step to further the field of suicide prevention research.

Balancing the Roles of Clinicians and Police in Separating Firearms from People in a Dangerous Mental Health Crisis: Legal Rules, Policy Tools, and Ethical Considerations

In COVID's immediate wake, the 2020 death toll from a different enemy of the public's health - gun violence - ticked up by 15 percent in the United States from the previous year. Meanwhile, the U.S. Supreme Court issued an opinion in Caniglia v. Strom that will allow people who have recently threatened suicide - with a gun - to keep unsecured guns in their home unless police take time to obtain a search warrant to remove them.

Health Service Protection vis-à-vis the Detection of Psychosocial Risks of Suicide during the Years 2019-2021

Health services are especially relevant in suicide prevention and intervention, representing a favourable environment in which to implement specific strategies to detect and address suicidal behaviours. Indeed, a significant proportion of people who die by suicide (DBS) present at primary care and mental health services during the last year, month, or even days before committing suicide. The objective of this descriptive and cross-sectional study of all registered cases of death by suicide (N = 265) in Extremadura (Spain) was to determine which of those people who died by suicide had mental health problems (MHP) and what type of assistance they had requested. Diagnoses, previous suicide attempts, type of health service, and last visit before death were explored with univariate analyses and logistic regressions. The proportion of people without MHP was found to be high, and these people had hardly visited the health services at all in their last year. People with MHP, between the ages of 40 and 69, and with previous suicide attempts were more likely to have visited the mental health service in the three months prior to their death. It is, thus, necessary to provide health professionals with tools and training in the prevention of and approach to suicide. Efforts must be directed towards effectively assessing mental health and the risk of suicide since a large proportion of people who die by suicide may go unnoticed.

Predictive value of suicidal risk assessment using data from China's largest suicide prevention hotline

BACKGROUND

Suicide hotlines are widely used, with potential for identification of callers at especially high risk.

METHODS

This prospective study was conducted at the largest psychological support hotline in China. From 2015 to 2017, all distressed callers were consecutively included and assessed, using a standardized scale consisting of 12 elements, yielding scores of high risk (8-16), moderate risk (4-7), and low risk (0-3) for suicidal act. All high-risk and half of moderate- and low-risk callers were scheduled for a 12-month follow-up. Main outcomes were suicidal acts (nonlethal attempt, death) over follow-up.

RESULTS

Of 21,346 fully assessed callers, 5822, 11,791, and 3733 were classified as high-, moderate-, or low-risk for suicidal acts, with 8869 callers (4076 high-, 3258 moderate-, and 1535 low-risk) followed up over 12 months. Over follow-up, 802 (9.0 %) callers attempted suicide or died by suicide. The high-risk callers (15.1 %) had 3-fold higher risk for subsequent suicidal acts than moderate- (5.1 %) and 12-fold higher risk than low-risk callers (1.3 %). The weighted sensitivity, specificity, and positive predictive value of high risk scores were 56.4 %, 74.9 %, and 14.4 %.

LIMITATIONS

Assessed callers with different risk levels were followed disproportionally.

CONCLUSIONS

Suicidal risk assessment during a hotline call is both feasible and predictive of risk, guiding resource allocation to higher risk callers.

The Effect of Herbal Medicine on Suicidal Behavior: A Protocol for Systematic Review and Meta-Analysis

Suicide is an important social and medical problem worldwide, including in countries that use traditional East Asian medicine (TEAM). Herbal medicine (HM) has been reported to be effective against several suicide-related conditions. This systematic review aimed to investigate the efficacy and safety of HM in reducing suicidal behavior including suicidal ideation, attempts, or completed suicide. We conduct a comprehensive search in 15 electronic bibliographic databases from inception to September 2022. All types of prospective clinical studies-including randomized controlled clinical trials (RCTs)-involving HM without or with routine care are included. The primary outcomes of this review are validated measures of suicidal ideation including the Beck scale for suicidal ideation. The revised Cochrane's risk of bias tool and other tools including the ROBANS-II tool are used to assess the methodological quality of RCTs and non-RCTs, respectively. A meta-analysis is performed using RevMan 5.4 in cases of homogeneous data from controlled studies. The results of the systematic review provide high-quality evidence to determine the efficacy and safety of HM for suicidal behavior. Our findings are informative for clinicians, policymakers, and researchers, aimed at reducing suicide rates, especially in countries that use TEAM.

Reply to Obegi, J.H. Distinguishing Prevention from Treatment in Suicide Prevention. Comment on "Turner et al. The Paradox of Suicide Prevention. Int. J. Environ. Res. Public Health 2022, 19, 14983"

One of the aims of our paper "The Paradox of Suicide Prevention" is to promote greater discourse on suicide prevention, with a particular focus on the mental health models used for the identification of, and interventions with, individuals who come into contact with tertiary mental health services [...].

The efficacy and safety of buprenorphine for the treatment of depression: A systematic review and meta-analysis

BACKGROUND

Depressive disorders are common. Many patients with major depression do not achieve remission with available treatments. Buprenorphine has been raised as a potential treatment for depression as well as suicidal behavior but may pose certain risks.

METHODS

A meta-analysis comparing the efficacy, tolerability, and safety of buprenorphine (or combinations such as buprenorphine/samidorphan) versus control in improving symptoms in patients with depression. Medline, Cochrane Database, PsycINFO, Excerpta Medica Database and The Cumulative Index to Nursing and Allied Health Literature were searched from inception through January 2, 2022. Depressive symptoms were pooled using Hedge's g with 95% Confidence Intervals (CI). Tolerability, safety, suicide outcomes were summarized qualitatively.

RESULTS

11 studies (N = 1699) met inclusion criteria. Buprenorphine had a small effect on depressive symptoms (Hedges' g 0.17, 95%CI: 0.05-0.29). Results were driven by six trials of buprenorphine/samidorphan (N = 1,343, Hedges's g 0.17, 95%CI: 0.04-0.29). One study reported significant improvement in suicidal thoughts (Least Squares Mean Change: -7.1, 95%CI: -12.0 - 2.3). Most studies found buprenorphine was well-tolerated with no evidence of abuse behavior or dependency.

CONCLUSIONS

Buprenorphine may have a small benefit for depressive symptoms. Future research should clarify the dose response relationship between buprenorphine and depression.

Incidence of suicide and self-harm among people with opioid use disorder and the impact of opioid agonist treatment: A retrospective data linkage study

BACKGROUND

Rates of suicide and self-harm are elevated among people with opioid use disorder (OUD). This study examined incidence of self-harm and suicide among people who have entered OAT and assessed the impact of different OAT exposure periods on these events.

METHOD

We conducted a retrospective population-based cohort study of all OAT recipients (N = 45,664) in New South Wales, Australia (2002-2017), using linked administrative data. Incidence rates of self-harm hospitalisations and suicide deaths were estimated per 1000 person-years (PY). The first 28 days of an OAT episode, ≥ 29 days on OAT, the first 28 days off OAT, and ≥ 29 days off OAT (maximum four years post-OAT) were exposure periods. Poisson regression models with generalised estimating equations estimated the adjusted incidence rate ratios (ARR) of self-harm and suicide by OAT exposure periods, adjusting for covariates.

RESULTS

There were 7482 hospitalisations (4148 individuals) for self-harm and 556 suicides, equating to incidence rates of 19.2 (95% confidence intervals [CI]=18.8-19.7) and 1.0 (95%CI=0.9-1.1) per 1000 PY, respectively. Opioid overdose was implicated in 9.6% of suicides and 28% of self-harm hospitalisations. Compared to ≥ 29 days on OAT, the incidence rate of suicide was elevated in the 28 days following OAT cessation (ARR=17.4 [95%CI=11.7-25.9]), and the rate of self-harm hospitalisations was elevated during the first 28 days of OAT (ARR=2.2 [95%CI=1.9-2.6]) and the 28 days after leaving OAT (ARR=2.7 [95%CI=2.3-3.2]).

CONCLUSIONS

OAT may reduce suicide and self-harm risk among people with OUD; however, OAT initiation and cessation are critical periods for targeting self-harm and suicide prevention interventions.

What Do We Know about Suicide Bereavement, and What We Can Do to Help Suicide-Loss Survivors?

"Suicide is not only the end of life for the deceased but also the beginning of a highly challenging life for those left behind" [...].

Cultural Adaptation of the teen Mental Health First Aid (tMHFA) Program from Australia to the USA

teen Mental Health First Aid (tMHFA) is an evidence-based program developed in Australia that teaches young people in grades 10-12 how to identify and respond to signs of mental health challenges and crises among peers. Recognizing the growing adolescent mental health crisis in the USA, the National Council for Mental Wellbeing, in partnership with a Johns Hopkins University research team, used a multimethod research approach to adapt the program culturally and contextually from Australia to the USA. The goals of the study were to engage adolescents, MHFA instructors, and content area experts (N = 171) in a process to determine: how to retain the elements of the course that were evidence-based and effective while adapting the program for US students, what topics to add so US students have the essential information and skills teens needed to help a friend experiencing a mental health challenge or crisis, what changes to make to curriculum materials to ensure the style and delivery resonate with US students, and what tools to include so the program is implemented safely and with fidelity in diverse US schools. This paper outlines the adaptation process, including engaging participants, identifying key recommendations for modification, and making changes to the tMHFA program. The findings demonstrate the types of adaptations that may be needed to facilitate implementation and maintenance of program effectiveness when introducing tMHFA to new populations of students in the USA. In addition, the process outlined can be replicated toward this purpose as the program continues to expand both in the USA and in other countries.

Diagnosis and management of bipolar disorders

Bipolar disorders (BDs) are recurrent and sometimes chronic disorders of mood that affect around 2% of the world's population and encompass a spectrum between severe elevated and excitable mood states (mania) to the dysphoria, low energy, and despondency of depressive episodes. The illness commonly starts in young adults and is a leading cause of disability and premature mortality. The clinical manifestations of bipolar disorder can be markedly varied between and within individuals across their lifespan. Early diagnosis is challenging and misdiagnoses are frequent, potentially resulting in missed early intervention and increasing the risk of iatrogenic harm. Over 15 approved treatments exist for the various phases of bipolar disorder, but outcomes are often suboptimal owing to insufficient efficacy, side effects, or lack of availability. Lithium, the first approved treatment for bipolar disorder, continues to be the most effective drug overall, although full remission is only seen in a subset of patients. Newer atypical antipsychotics are increasingly being found to be effective in the treatment of bipolar depression; however, their long term tolerability and safety are uncertain. For many with bipolar disorder, combination therapy and adjunctive psychotherapy might be necessary to treat symptoms across different phases of illness. Several classes of medications exist for treating bipolar disorder but predicting which medication is likely to be most effective or tolerable is not yet possible. As pathophysiological insights into the causes of bipolar disorders are revealed, a new era of targeted treatments aimed at causal mechanisms, be they pharmacological or psychosocial, will hopefully be developed. For the time being, however, clinical judgment, shared decision making, and empirical follow-up remain essential elements of clinical care. This review provides an overview of the clinical features, diagnostic subtypes, and major treatment modalities available to treat people with bipolar disorder, highlighting recent advances and ongoing therapeutic challenges.

Clinical Considerations for Digital Resources in Care for Patients With Suicidal Ideation

Smartphone apps offer accessible new tools that may help prevent suicide and that offer support for individuals with active suicidal ideation. Numerous smartphone apps for mental health conditions exist; however, their functionality is limited, and evidence is nascent. A new generation of apps using smartphone sensors and integrating real-time data on evolving risk offers the potential of more personalized support, but these apps present ethical risks and currently remain more in the research domain than in the clinical domain. Nevertheless, clinicians can use apps to benefit patients. This article outlines practical strategies to select safe and effective apps for the creation of a digital toolkit that can augment suicide prevention and safety plans. By creating a unique digital toolkit for each patient, clinicians can help ensure that the apps selected will be most relevant, engaging, and effective.

Brief and Ultra-Brief Suicide-Specific Interventions

The rising rates of suicide warrant effective treatments that can quickly help stabilize suicidal individuals and prevent future suicidal crises from occurring. Across the past few decades, there has been a rise in the development of ultra-brief (1-4 sessions) and brief suicide-specific interventions (6-12 sessions) to meet this need. This article reviews several prominent ultra-brief and brief interventions, including the Teachable Moment Brief Intervention, Attempted Suicide Short Intervention Program, Safety Planning Intervention, Crisis Response Planning, Cognitive Therapy for Suicide Prevention, Brief Cognitive-Behavioral Therapy for Suicide Prevention, Collaborative Assessment and Management of Suicidality, and the Coping Long-Term With Active Suicide Program. A brief review of each interventions' evidence base is also provided. Current challenges and directions for future research in testing the efficacy and effectiveness of suicide prevention initiatives are discussed.

Attempted suicide rates before and during the COVID-19 pandemic: interrupted time series analysis of a nationally representative sample

BACKGROUND

To characterize the association between the protracted biopsychosocial coronavirus disease 2019 (COVID-19) pandemic exposures and incident suicide attempt rates.

METHODS

Data were from a nationally representative cohort based on electronic health records from January 2013 to February 2021 (N = 852 233), with an interrupted time series study design. For the primary analysis, the effect of COVID-19 pandemic on incident suicide attempts warranting in-patient hospital treatment was quantified by fitting a Poisson regression and modeling the relative risk (RR) and the corresponding 95% confidence intervals (CIs). Scenarios were forecast to predict attempted suicide rates at 10 months after social mitigation strategies. Fourteen sensitivity analyses were performed to test the robustness of the results.

RESULTS

Despite the increasing trend in the unexposed interval, the interval exposed to the COVID-19 pandemic was statistically significant (p < 0.001) associated with a reduced RR of incident attempted suicide (RR = 0.63, 95% CI 0.52-0.78). Consistent with the primary analysis, sensitivity analysis of sociodemographic groups and methodological factors were statistically significant (p < 0.05). No effect modification was identified for COVID-19 lockdown intervals or COVID-19 illness status. All three forecast scenarios at 10 months projected a suicide attempt rate increase from 12.49 (7.42-21.01) to 21.38 (12.71-35.99).

CONCLUSIONS

The interval exposed to the protracted mass social trauma of the COVID-19 pandemic was associated with a lower suicide attempt rate compared to the unexposed interval. However, this trend is likely to reverse 10 months after lifting social mitigation policies, underscoring the need for enhanced implementation of public health policy for suicide prevention.

Youth Firearm Injury: A Review for Pediatric Critical Care Clinicians

Firearms are now the leading cause of death among youth in the United States, with rates of homicide and suicide rising even more steeply during the SARS-CoV-2 pandemic. These injuries and deaths have wide-ranging consequences for the physical and emotional health of youth and families. While pediatric critical care clinicians must treat the injured survivors, they can also play a role in prevention by understanding the risks and consequences of firearm injuries; taking a trauma-informed approach to the care of injured youth; counseling patients and families on firearm access; and advocating for youth safety policy and programming.

Complex modeling with detailed temporal predictors does not improve health records-based suicide risk prediction

Suicide risk prediction models can identify individuals for targeted intervention. Discussions of transparency, explainability, and transportability in machine learning presume complex prediction models with many variables outperform simpler models. We compared random forest, artificial neural network, and ensemble models with 1500 temporally defined predictors to logistic regression models. Data from 25,800,888 mental health visits made by 3,081,420 individuals in 7 health systems were used to train and evaluate suicidal behavior prediction models. Model performance was compared across several measures. All models performed well (area under the receiver operating curve [AUC]: 0.794-0.858). Ensemble models performed best, but improvements over a regression model with 100 predictors were minimal (AUC improvements: 0.006-0.020). Results are consistent across performance metrics and subgroups defined by race, ethnicity, and sex. Our results suggest simpler parametric models, which are easier to implement as part of routine clinical practice, perform comparably to more complex machine learning methods.

How to save a life: From neurobiological underpinnings to psychopharmacotherapies in the prevention of suicide

The impact of suicide on our societies, mental healthcare, and public health is beyond questionable. Every year approximately 700 000 lives are lost due to suicide around the world (WHO, 2021); more people die by suicide than by homicide and war. Although suicide is a key issue and reducing suicide mortality is a global imperative, suicide is a highly complex biopsychosocial phenomenon, and in spite of several suicidal models developed in recent years and a high number of suicide risk factors identified, we still have neither a sufficient understanding of underpinnings of suicide nor adequate management strategies to reduce its prevalence. The present paper first overviews the background of suicidal behavior including its epidemiology, prevalence, age and gender correlations and its association with neuropsychiatric disorders as well as its clinical assessment. Then we give an overview of the etiological background, including its biopsychosocial contexts, genetics and neurobiology. Based on the above, we then provide a critical overview of the currently available intervention options to manage and reduce risk of suicide, including psychotherapeutic modalities, traditional medication classes also providing an up-to-date overview on the antisuicidal effects of lithium, as well as novel molecules such as esketamine and emerging medications and further molecules in development. Finally we give a critical overview on our current knowledge on using neuromodulatory and biological therapies, such as ECT, rTMS, tDCS and other options.

Regional clozapine, ECT and lithium usage inversely associated with excess suicide rates in male adolescents

Advanced psychiatric treatments remain uncertain in preventing suicide among adolescents. Across the 21 Swedish regions, using nationwide registers between 2016-2020, we found negative correlation between adolescent excess suicide mortality (AESM) and regional frequencies of clozapine, ECT, and lithium (CEL) usage among adolescents (β = -0.613, p = 0.0003, 95% CI: -0.338, -0.889) and males (β = -0.404, p = 0.009, 95% CI: -0.130, -0.678). No correlation was found among females (p = 0.197). Highest CEL usage among male adolescents was seen in regions with lowest quartile (Q1) AESM (W = 74, p = 0.012). Regional CEL treatment frequency in 15-19-year-olds was related to lower AESM in males, reflecting potential treatment efficacy, treatment compliance or better-quality mental health care. Suicide prevention may benefit from early recognition and CEL treatment for severe mental illness in male adolescents. The results indicate association but further research, using independent samples and both prospective and observational methodologies, is needed to confirm causality.

Brazilian Psychiatric Association guidelines for the management of suicidal behavior. Part 3. Suicide prevention hotlines

Crisis hotlines are direct communication systems, usually telephone-based, set up to prevent suicide. However, few studies have evaluated their effectiveness. The present study aims to perform a systematic review, using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) framework, of the effectiveness of interventions through direct communication systems to reduce the number of suicides or suicide attempts. We searched the MEDLINE, Cochrane, SciELO, and ClinicaTrials.gov databases, and used the 2011 Oxford Centre for Evidence-Based Medicine Levels of Evidence classification. The literature search yielded 267 studies, of which 35 fulfilled the selection criteria. Although significant heterogeneity was found among studies, there is evidence that direct telephone interventions are effective when included in broader preventive protocols and provided by trained staff. Despite the limitations, which included heterogeneity of samples, designs, and outcome measures, we were able to design a protocol for the use of remote services to prevent suicide and suicide attempts. A hotline or similar system could be an effective intervention for broader suicide prevention programs. However, further research is necessary to specify which protocol components are key to enhance effectiveness.

Rapid intensification of suicide risk preceding suicidal behavior among primary care patients

BACKGROUND

Approximately half of those who attempt suicide report experiencing suicidal ideation and suicidal planning in advance; others deny these experiences. Some researchers have hypothesized that rapid intensification is due to past suicidal ideation and/or behaviors that are "mentally shelved" but remain available for rapid access later.

METHOD

To evaluate this hypothesis, we examined (a) temporal sequencing of suicidal ideation, suicidal planning, and suicidal behavior, and (b) speed of emergence of suicidal behavior in a prospective cohort study of 2744 primary care patients.

RESULTS

Of 52 patients reporting suicidal behavior during follow-up, 20 (38.5%) reported suicidal ideation and planning prior to their suicidal behavior, 23 (44.2%) reported suicidal ideation but not planning, and nine (17.3%) denied both suicidal ideation and planning. Over half (n = 30, 57.7%) reported the onset of suicidal ideation and/or planning on the same day as or after their suicidal behavior (i.e., rapid intensification). Rapid intensification was not associated with increased likelihood of reporting recent or past suicidal ideation, planning, or behaviors, suggesting rapid intensification does not depend on prior experience with suicidal ideation and/or behaviors.

CONCLUSION

Detecting primary care patients at risk for this form of suicidal behavior may be limited even with universal suicide risk screening.

Utilisation and application of implementation science in complex suicide prevention interventions: A systematic review

OBJECTIVES

Little is known about how complex, multilevel, and multicomponent suicide prevention interventions work in real life settings. Understanding the methods used to systematically adopt, deliver, and sustain these interventions could ensure that they have the best chance of unfolding their full effect. This systematic review aimed to examine the application and extent of utilisation of implementation science in understanding and evaluating complex suicide prevention interventions.

METHODS

The review adhered to updated PRISMA guidelines and was prospectively registered with PROSPERO (CRD42021247950). PubMed, CINAHL, PsycINFO, ProQuest, SCOPUS and CENTRAL were searched. All English-language records (1990-2022) with suicide and/or self-harm as the primary aims or targets of intervention were eligible. A forward citation search and a reference search further bolstered the search strategy. Interventions were considered complex if they consisted of three or more components and were implemented across two or more levels of socio-ecology or levels of prevention.

RESULTS

One hundred thirty-nine records describing 19 complex interventions were identified. In 13 interventions, use of implementation science approaches, primarily process evaluations, was explicitly stated. However, extent of utilisation of implementation science approaches was found to be inconsistent and incomprehensive.

LIMITATIONS

The inclusion criteria, along with a narrow definition of complex interventions may have limited our findings.

CONCLUSION

Understanding the implementation of complex interventions is crucial for unlocking key questions about theory-practice knowledge translation. Inconsistent reporting and inadequate understanding of implementation processes can lead to loss of critical, experiential knowledge related to what works to prevent suicide in real world settings.

Surveillance of Hospital-Presenting Intentional Self-Harm in Western Sydney, Australia, During the Implementation of a New Self-Harm Reporting Field

Background: Hospital-presenting self-harm is a strong predictor of suicide and has substantial human and health service costs. Aims: We aimed to identify changes in case ascertainment after implementation of a new self-harm reporting field at a tertiary hospital in New South Wales, and to report event rates, demographic, and clinical characteristics. Method: Self-harm events presenting to the emergency department (October 2017 to August 2020) were identified using clinical documentation and a new reporting field. Changes in the frequency of self-harm in the period after implementation of the self-harm field were assessed through Poisson regression models. Results: A twofold increase in the frequency of self-harm was detected following the implementation of the new reporting field. The annual average age-standardized event rate of self-harm was 110.4 per 100,000 (120.8 per 100,000 for females; 100.1 per 100,000 for males). The highest rates by age and sex were for females aged 15-19 years (375 per 100,000) and males aged 20-24 years (175 per 100,000). Limitations: Self-harm identification relies on clinician coding practice, which is subject to variability and potential under-enumeration. Conclusion: These findings highlight the value of a self-harm reporting field in hospital record systems for accurate recording and long-term monitoring of self-harm event rates.

Suicide risk among combatants: The longitudinal contributions of pre-enlistment characteristics, pre-deployment personality factors and moral injury

BACKGROUND

Recent studies have shown that exposure to potentially morally injurious events (PMIEs) in deployment situations facilitates higher suicide risk among combatants. However, knowledge about pre-deployment factors that may moderate the negative contribution of PMIEs to suicide risk is rare. In this prospective study, we examined pre-enlistment characteristics and pre-deployment personality factors as possible moderators in the link between exposure to self, other, and betrayal dimensions of PMIEs and post-deployment suicide risk among Israeli active-duty combatants.

METHODS

A sample of 335 active-duty Israeli combatants participated in a 2.5-year prospective study with three waves of measurements: T1-12 months before enlistment, T2-6 months following enlistment (pre-deployment), and T3-18 months following enlistment (post-deployment). Participants were assessed via semi-structured interviews of personal characteristics (e.g., cognitive index) at T1, validated self-report measures of personality factors for emotional regulation, impulsivity, and aggression at T2, and combat exposure, PMIEs, and suicide risk at T3 between 2019 and 2021.

RESULTS

All three dimensions of PMIEs were significantly associated with higher suicidal risk among combatants. Importantly, higher levels of pre-deployment aggression and lower levels of emotional regulation moderated the association between PMIEs and suicide risk post-deployment, above and beyond pre-enlistment psychiatric difficulties and life events.

CONCLUSIONS

Our results highlight the roles of pre-deployment factors of emotional regulation and aggressiveness as possible moderators in the PMIEs-suicide risk link. These results emphasize the need for higher awareness of suicide risk among deployed combatants with low emotional regulation and high aggressiveness. Moreover, tailored interventions aiming to decrease emotional dysregulation and aggressiveness levels should be considered, as such interventions may help reduce suicide risk following combat-related transgressive acts.

Understanding for Prevention: Qualitative and Quantitative Analyses of Suicide Notes and Forensic Reports

Suicide risk is associated with vulnerabilities and specific life events. The study's objective was to explore the relevance of data from forensic documentation on suicide deaths to the design of person-centered preventive strategies. Descriptive and thematic analyses were conducted of forensic observations of 286 deaths by suicide, including some with suicide notes. Key findings included the influence of health-and family-related adverse events, emotional states of loss and sadness, and failures of the health system to detect and act on signs of vulnerability, as confirmed by the suicide notes. Forensic documentation provides useful information to improve the targeting of preventive campaigns.

Moving suicide prevention upstream by understanding the effect of flourishing on suicidal ideation in midlife: an instrumental variable approach

Prior research has examined the association between flourishing and suicidal ideation, but it is unknown whether this association is causal. Understanding the causality between flourishing and suicidal ideation is important for clinicians and policymakers to determine the value of innovative suicide prevention programs by improving flourishing in at-risk groups. Using a linked nationwide longitudinal sample of 1619 middle-aged adults (mean age 53, 53% female, 88% White) from the National Survey of Midlife Development in the United States (MIDUS), this retrospective cohort study aims to assess the causal relationship between flourishing and suicidal ideation among middle-aged adults in the US. Flourishing is a theory-informed 13-scale index covering three domains: emotional, psychological, and social well-being. Suicidal ideation was self-reported in a follow-up interview conducted after measuring flourishing. We estimated instrumental variable models to examine the potential causal relationship between flourishing and suicidal ideation. High-level flourishing (binary) was reported by 486 (30.0%) individuals, and was associated with an 18.6% reduction in any suicidal ideation (binary) (95% CI, - 29.3- - 8.0). Using alternative measures, a one standard deviation increase in flourishing (z-score) was associated with a 0.518 (95% CI, 0.069, 0.968) standard deviation decrease in suicidal ideation (z-score). Our results suggest that prevention programs that increase flourishing in midlife should result in meaningful reductions in suicide risk. Strengthening population-level collaboration between policymakers, clinical practitioners, and non-medical partners to promote flourishing can support our collective ability to reduce suicide risks across social, economic, and other structural circumstances.

Factors associated with past-year medication use and psychotherapy in adults with suicidal ideation in France

BACKGROUND

The objective of the study is to assess the sociodemographic and clinical factors associated with past-year medication use and/or psychotherapy among adults with suicidal ideation in the past 12 months.

METHODS

Data were drawn from the 2017 Health Barometer survey, a large computer-assisted telephone survey on a representative sample of the general population aged 18 to 75 years living in metropolitan France (n = 25,319). Logistic and multinomial regression analyses were used to study past-year medication use and/or psychotherapy as a function of sociodemographic and clinical factors. Analyses were restricted to individuals reporting suicidal ideation in the past year (n = 1,148).

RESULTS

Overall, 43.6% of adults with suicidal ideation reported no treatment for a mental health reason in the past year; 36.6% reported using medication only, 4.8% psychotherapy only, and 15.0% both. Sociodemographic and clinical factors associated with increased probability of treatment varied as a function of the type of treatment received. Adjusting for key factors including clinical factors, older adults with suicidal ideation were more likely than younger adults to receive medication only.

CONCLUSIONS

The findings point to differential inequalities in access to medication and psychotherapy among adults with suicidal ideation in the general population of France.

Means of suicide among adults with schizophrenia across the life span

BACKGROUND AND HYPOTHESES

Adults with schizophrenia have increased risk of suicide with highest risk among younger adults. We investigated whether means of suicide among these adults were different from the general population.

STUDY DESIGN

This retrospective longitudinal analysis used the National Death Index to characterize means of suicide among 4 cohorts of Medicare patients with schizophrenia (2007-2016) by age: 18 to 34, 35 to 44, 45 to 54, and aged 55+ years. Means of suicide were categorized by age at death and sex. Adjusted hazard ratios were calculated for common means. Mortality rates per 100,000 person-years were estimated by age group stratified by sex, and standardized to the general population by age, sex, and race-ethnicity using standardized mortality ratios.

STUDY RESULTS

668,836 adults were included with 2218 suicide decedents: 1444 men and 774 women. The most common means of suicide was poisoning (36.8 %), with a significant sex difference by means: 55.9 % of women died by poisoning, 13.8 % by firearms, 11.0 % by hanging and 9.4 % by jumping, while among men suicide by poisoning (26.6 %), firearms (25.5 %), and hanging (24.2 %) were similar, followed by jumping (12.0 %). Suicide by poisoning among the schizophrenia cohort was 10 times that of the general population, while suicide by firearm was twice that of the general population.

CONCLUSIONS

Means of suicide differed for patients with schizophrenia compared to the general population: poisoning was the most common means among men and women with schizophrenia, while firearms accounted for over half of all suicides in the general U.S.

POPULATION

Ketamine and esketamine in suicidal thoughts and behaviors: a systematic review

BACKGROUND

More than 2% of the general population experience suicidal ideas each year and a large number of them will attempt suicide. Evidence-based therapeutic options to manage suicidal crisis are currently limited.

OBJECTIVES

The aim of this study was to overview the findings on the use of ketamine and esketamine for the treatment of suicidal ideas and acts.

DESIGN

Systematic review.

DATA SOURCES AND METHODS

PubMed, article references, and Clinicaltrials.gov up to June 30, 2022. Meta-analyses published within the last 2 years were also reviewed.

RESULTS

We identified 12 randomized controlled trials with reduction of suicidal ideation as the primary objective and 14 trials as secondary objectives. Intravenous racemic ketamine was superior to control drugs (placebo or midazolam) within the first 72 h, in spite of large placebo effects. Adverse events were minor and transient. In contrast, intranasal esketamine did not differ from placebo in large-scale studies. Limitations, clinical considerations, and opportunities for future research include the following points: large placebo effects when studying suicidal ideation reduction; small concerns about blinding quality due to dissociative effects; no studies on the risk/prevention of suicidal acts and mortality; lack of studies beyond affective disorders; no studies in adolescents and older people; lack of knowledge of long-term side effects, notably liability for abuse; no robust predictive markers; limited understanding of the mechanisms of ketamine on suicidal ideas; need for improved assessment of suicidal ideation in clinical trials; need for studies in outpatient settings, emergency room, and liaison consultation; need for research on ketamine administration; limited knowledge on the positive and negative effects of concomitant treatments.

CONCLUSION

Overall, there is compelling evidence for a favorable short-term benefit-risk balance with intravenous racemic ketamine but not intranasal esketamine. The place of ketamine will have to be defined within a multimodal care strategy for suicidal patients. Caution remains necessary for clinical use, and pharmacovigilance will be essential.

Suicide Risk Assessment, Management, and Mitigation in the Emergency Setting

Suicide is a serious public health issue and is a leading cause of death worldwide. Suicidal ideation is a common presentation in emergency department (ED) settings, with many nuanced complications. Therefore, understanding screening, assessment, and mitigation is paramount to successful encounters with individuals presenting to emergency settings in psychiatric crises. Screening helps to identify the few people at risk within a large group. Assessment seeks to decide whether a specific individual is at significant risk. Mitigation aims to reduce the risk of suicide or of a serious attempt for a person at risk. These aims cannot be achieved with perfect reliability, but some approaches are more effective than others. Suicide screening specifics are important, even to individual practitioners, because a positive screen triggers assessment. Most practitioners understand assessment well: beginning with early psychiatric training, they are taught signs and symptoms suggesting that a patient might be at risk of suicide. Mitigating suicide risk is increasingly important to reduce the misery of ED boarding for patients awaiting psychiatric admission. For many patients, hospital admission is unnecessary if support, monitoring, and contingency plans are workable. For any individual patient, there may be a complicated mix of findings, risks, and interventions. Evidence-based screening and assessment tools are inadequate for the possible complexities, making care of individual patients dependent on good clinical assessment. The authors review the available evidence and offer experienced recommendations for challenges not yet thoroughly researched.

Self-Directed Violence Surveillance in the Veterans Health Administration: A National Examination of Factors Associated with Undetermined Versus Suicide Attempt Classification

This national, observational study examined factors associated with undetermined self-directed violence (SDV) classification among Veterans with a SDV event classified as either "suicide attempt" or "undetermined SDV" in in the Veterans Health Administration (VHA) between 2013 and 2018 (N = 55,878). Generalized estimating equations were used to examine associations of patient and SDV event factors with likelihood of an undetermined SDV classification. Veterans who used poisoning or other methods had 1.52 (95%CI: 1.38, 1.66) and 2.33 (95%CI: 2.16, 2.50) increased odds of having their SDV classified as undetermined, respectively. Veterans with a prior year substance use disorder diagnosis had 1.19 (95%CI: 1.14, 1.24) increased odds of having their SDV classified as undetermined. In sex-stratified analyses, associations of poisoning and substance use disorders held only among males. Additional clinical evaluation of patients with histories of substance use disorders or who use poisoning as method of SDV may be warranted when making SDV determinations.

Effective suicide prevention strategies in primary healthcare settings: a systematic review

Background

There is a fundamental need for health systems, health managers, and policymakers to identify effective components of suicide prevention strategies (SPS) and programs in primary healthcare (PHC) settings. Accordingly, this systematic review aimed to identify and summarize effective and significant evidence on suicide prevention in PHC setting. We systematically searched the published literature in English from PubMed, Web of Science, Scopus, CINAHL, PsychoINFO, and Embase up to 31 July 2022. The study searched all records reporting effective and significant strategies and programs on suicide prevention in PHC settings. A content analysis approach was carried out to extract major components of suicide prevention strategies in PHC settings.

Results

A total of 10 records (8 original articles and 2 reports) with 1,199,986 samples were included. In all the included articles, SPS decreased suicide rates. The majority of studies were conducted among the general population. The content analysis approach emerged five major components to SPS in PHC setting: (1) training and educating healthcare providers, (2) screening and suicide risk assessment, (3) managing depression symptoms and mental disorders, (4) managing suicide attempters and at-risk cases, and (5) prevention strategies at the general population.

Conclusions

This review provided reliable evidence for health systems to develop SPS in PHC and practitioners who are eager to provide brief and effective contact interventions for suicide risk to well-serve their patients.

Trends in suicide methods in Switzerland from 1969 to 2018: an observational study

BACKGROUND

Suicide is a serious societal and health problem. We examined changes in rates of completed suicides in Switzerland between 1969-2018 with particular regard to different methods of suicide used in different subgroups of the resident population.

METHODS

We used data of the Swiss cause of death statistics and Poisson regression models to analyse annual incidence rates and calendar time trends of specific suicide methods used in population subgroups by sex (men vs women), age (10-29, 30-64, >64 years), and nationality (Swiss vs other citizenship).

RESULTS

There were 64,996 registered suicides between 1969 and 2018. Across these 5 decades, the overall suicide rate was higher in men than in women (incidence rate ratio [IRR] 2.62, 95% confidence interval [CI] 2.58-2.67), in Swiss citizens than in foreigners (IRR 2.02; 95% CI 1.97-2.07), and in older residents (>64 years) than in the age groups 30-64 years (IRR 1.35, 95% CI 1.32-1.37) and 10-29 years (IRR 2.37, 95% CI 2.32-2.43). After peaking in the 1980s, the overall suicide rate had declined in all of these population subgroups, with flattening trends over most recent years. The most common specific methods of suicide were hanging (accounting for 26.7% of all suicides) and firearms (23.6%). The rates of the specific suicide methods were usually higher in men, in Swiss citizens and in older residents, and they had typically declined over most recent decades in the population subgroups examined. However, some methods diverged from this general pattern, at least in some population subgroups. For instance, railway suicides most recently increased in younger and in male residents whereas suicides by gas and by drowning were only at a low level after rapid declines in the last millennium.

CONCLUSIONS

Restricting access to lethal means (e.g., detoxification of domestic gas), improvements in health care and media guidelines for responsible reporting of suicides are possible explanations for the generally declining suicide rates in Switzerland. Whereas some methods (e.g., poisoning by gases or drowning) had become rare, others continue to account for many suicides every year, at least in some population subgroups (e.g., firearms in older Swiss men or railway suicides in younger and in male residents). As different methods of suicide are chosen by different people or subgroups of the population, preventive efforts should include differentiated strategies and targeted measures to further reduce suicides in Switzerland and elsewhere.

Mapping the Scientific Research on Suicide and Physical Activity: A Bibliometric Analysis

This research provides an overview of the current state of scientific literature related to suicide and physical activity (PA). A bibliometric analysis of studies published between 1996 and 2022 in The Web of Science (WoS) was carried out, applying the traditional bibliometric laws, using Microsoft Excel and the VOSviewer software for data and metadata processing. A total of 368 documents (349 primary research and 19 reviews) were extracted from 70 WoS categories. The results revealed an exponential increase in scientific production from 2017 to 2022 (R² = 88%), revealing the United States hegemony being the most productive country, with 156 of the publications (42.4%), the most cited (4181 citations) being the centre of a collaborative network with links to 35 countries and having April Smith, from the Miami University, as the most prolific author (eight publications) and Thomas Joiner, from the Florida State University, as the most cited author (513 citations). The Psychiatry WoS category, with 155 papers, had the highest number of publications, and The Journal of Affective Disorders, from Elsevier, had the highest number of published papers within this category.

Feasibility of recruitment and retention in a remote trial of gatekeeper training for close supports of military veterans: Mixed methods study

Background

VA S.A.V.E. (Signs; Ask; Validate; Encourage/Expedite) is a gatekeeper training, designed to teach individuals how to identify and assist military veterans at risk for suicide. The aim of this pilot was to determine feasibility, barriers, and facilitators of recruitment and retention in a remote trial of VA S.A.V.E.

Methods

We recruited close supports (family and friends) of veterans through Facebook sponsored ads, automatically randomized them to VA S.A.V.E. or an unrelated video training, and followed them for six months. A subgroup completed interviews, and we used a mixed methods framework to integrate quantitative and qualitative findings.

Results

Of 214 participants, 61% were spouses or partners of veterans and 48% knew at least one veteran who had died by suicide. Of the three a priori feasibility benchmarks, two were achieved (enrollment, on average, of twenty participants per week and less than 50% loss to follow-up at the 6-month study endpoint) and one was not (enrollment of at least 50% of eligible individuals). There were three barriers (generic ads, ad text referring to "research," and Facebook as an ad platform) and five facilitators (audience segmentation focused on veterans' family members and friends, an urgent call to action to help a veteran, prior exposure to suicide, emphasizing the benefit of receiving training, and using a university as the campaign messenger) to study participation.

Conclusion

A fully remote trial of VA S.A.V.E. gatekeeper training was feasible in a population of close supports of veterans. Several strategies may further enhance study participation.

Receipt of clinician-delivered firearm safety counseling among U.S. Veterans: Results from a 2019 national survey

OBJECTIVE

Seventy percent of suicides among U.S. veterans are due to firearm injury. Because discussions about firearm access are an important component of evidence-based suicide prevention programs, we sought to quantify the proportion of U.S. veterans who have discussed firearm safety with a healthcare provider.

METHODS

Data come from a probability-based, nationally representative online survey of U.S. adults living in households with firearms in 2019 (response 65%). In this study, we include only self-identified veteran firearm owners. Respondents were asked, "Has a physician or other healthcare practitioner ever spoken to you about firearm safety?" Analyses were stratified by self-reported use of Veterans Health Administration (VHA) healthcare services.

RESULTS

Overall, 31.5% (95% CI 27.5-35.8) reported using VHA services and 9.2% (95% CI 6.8-12.3) reported that a clinician had ever spoken with them about firearm safety (14.3% among VHA users, 6.8% among non-users). Of those who reported a discussion, nearly three quarters reported it was with an outpatient primary care physician or medical specialist.

CONCLUSIONS

A large majority of veteran firearm owners have not had, or do not recall having had, a firearm safety discussion with a clinician, suggesting that additional efforts to facilitate such discussions in the VHA and elsewhere are needed.

Tools to Detect Risk of Death by Suicide: A Systematic Review and Meta-Analysis

Objective: There is limited knowledge about the ability of instruments to detect risk of suicide in a range of settings. Prior reviews have not considered whether the utility of instruments depends on prior probability of risk. We performed a systematic review to determine the diagnostic accuracy of instruments to detect risk of suicide in adults using likelihood ratio analysis. This method aids evaluation of prior probabilities of risk.

Data Sources: We searched MEDLINE, Cochrane Database of Systematic Reviews, PsycINFO, EMBASE, and Scopus from inception through January 19, 2021.

Study Selection: We included clinical trials, observational studies, and quasi-experimental studies assessing the diagnostic accuracy of instruments to detect risk of suicide in adults. There were no language restrictions.

Data Extraction: Three reviewers in duplicate assessed full texts to determine eligibility and extracted data from included studies. Positive (LR+) and negative likelihood ratio (LR-) and 95% CIs were calculated for each instrument.

Results: Thirty studies met inclusion criteria. Most instruments showed minimal utility to detect or rule out risk of suicide, with LR+ ≤ 2.0 and LR- ≥ 0.5. A few instruments had a high utility for improving risk detection in emergency department, inpatient mental health, and prison settings when patients scored above the cutoff (LR+ > 10). For example, among patients discharged from an emergency department, the Columbia Suicide Severity Rating Scale-Clinical Practice Screener had a LR+ of 10.3 (95% CI, 6.3-16.8) at 3-month follow-up. The clinical utility of the instruments depends on the pretest probability of suicide in the setting. Because studies spanned over 6 decades, the findings are at risk for secular trends.

Discussion: We identified several instruments that may hold promise for detecting risk of suicide in emergency department, inpatient mental health, or prison settings. The utility of the instrument hinges, in part, on baseline suicide risk.

Registration: PROSPERO: CRD42021285528.

Performing Arts in Suicide Prevention Strategies: A Scoping Review

Suicide is a leading cause of death all over the world. Suicide prevention is possible and should be pursued through a variety of strategies. The importance of the arts for positive health outcomes has been increasingly evidenced. This scoping review aimed to identify the possible role of the performing arts-defined as a type of art performed through actions such as music, dance, or drama executed alive by an artist or other participant in the presence of an audience,-in suicide prevention programs. PubMed, Embase, PsycINFO, CINAHL, ProQuest Psychology Database, Scopus, and Web of Science were searched using terms in English for publications of original studies that included performing arts in suicide prevention programs. Thirty-five studies conducted between 1981 and 2021 were identified, of which only five were randomized clinical trials and four quasi-randomized studies. Interventions used different performing arts to improve awareness, self-efficacy, and soft skills relevant to suicide prevention. Studies were addressed mainly to gatekeepers but also directly to at-risk populations. While the study designs do not allow inferences to be drawn about the effectiveness of performing arts in preventing suicide, the review found that performing arts have been successfully implemented in suicide prevention programs. Research to evaluate the possible therapeutic benefit is warranted.

Evidence for machine learning guided early prediction of acute outcomes in the treatment of depressed children and adolescents with antidepressants

BACKGROUND

The treatment of depression in children and adolescents is a substantial public health challenge. This study examined artificial intelligence tools for the prediction of early outcomes in depressed children and adolescents treated with fluoxetine, duloxetine, or placebo.

METHODS

The study samples included training datasets (N = 271) from patients with major depressive disorder (MDD) treated with fluoxetine and testing datasets from patients with MDD treated with duloxetine (N = 255) or placebo (N = 265). Treatment trajectories were generated using probabilistic graphical models (PGMs). Unsupervised machine learning identified specific depressive symptom profiles and related thresholds of improvement during acute treatment.

RESULTS

Variation in six depressive symptoms (difficulty having fun, social withdrawal, excessive fatigue, irritability, low self-esteem, and depressed feelings) assessed with the Children's Depression Rating Scale-Revised at 4-6 weeks predicted treatment outcomes with fluoxetine at 10-12 weeks with an average accuracy of 73% in the training dataset. The same six symptoms predicted 10-12 week outcomes at 4-6 weeks in (a) duloxetine testing datasets with an average accuracy of 76% and (b) placebo-treated patients with accuracies of 67%. In placebo-treated patients, the accuracies of predicting response and remission were similar to antidepressants. Accuracies for predicting nonresponse to placebo treatment were significantly lower than antidepressants.

CONCLUSIONS

PGMs provided clinically meaningful predictions in samples of depressed children and adolescents treated with fluoxetine or duloxetine. Future work should augment PGMs with biological data for refined predictions to guide the selection of pharmacological and psychotherapeutic treatment in children and adolescents with depression.

Recent research advances in identification and prevention of youth suicide risk

PURPOSE OF THE REVIEW

The rate of youth suicidal behaviors has gradually increased over the last 15 years and continues to grow during the COVID-19 pandemic. This trend burdens mental health services and demands significant developments in risk detection and delivery of interventions to reduce the risk. In this article we outline significant advances and recent findings in youth suicide research that may facilitate strategies for identifying and preventing suicide risk among youth at risk in general and in specific risk groups.

RECENT FINDINGS

The rise in suicide and suicidal behaviors is most likely to affect young people of racial, ethnic, sexual, and gender identity minorities and those living in poverty or experiencing maltreatment. The suicide rate in children is rising and demands special attention. Proximal risk factors for suicidal behavior compared with suicidal ideation have been suggested to identify near-term suicidal risk. Effective and scalable prevention strategies were identified, and the role of new technologies in suicide prevention among youth is to be determined.

SUMMARY

To reach broader suicide prevention in youth and reduce the pressure on mental healthcare, public health approaches and improved service access for minority youth and those living in underserved areas of the world are needed.

Risk factors for suicide in adults: systematic review and meta-analysis of psychological autopsy studies

QUESTION

Effective prevention of suicide requires a comprehensive understanding of risk factors.

STUDY SELECTION AND ANALYSIS

Five databases were systematically searched to identify psychological autopsy studies (published up to February 2022) that reported on risk factors for suicide mortality among adults in the general population. Effect sizes were pooled as odds ratios (ORs) using random-effects models for each risk factor examined in at least three independent samples.

FINDINGS

A total of 37 case-control studies from 23 countries were included, providing data on 40 risk factors in 5633 cases and 7101 controls. The magnitude of effect sizes varied substantially both between and within risk factor domains. Clinical factors had the strongest associations with suicide, including any mental disorder (OR=13.1, 95% CI 9.9 to 17.4) and a history of self-harm (OR=10.1, 95% CI 6.6 to 15.6). By comparison, effect sizes were smaller for other domains relating to sociodemographic status, family history, and adverse life events (OR range 2-5).

CONCLUSIONS

A wide range of predisposing and precipitating factors are associated with suicide among adults in the general population, but with clear differences in their relative strength.

PROSPERO REGISTRATION NUMBER

CRD42021232878.

Enabling mental health task-sharing: a collective case study of undergraduate clinical associate training programmes in South Africa

BACKGROUND

There is a shortage of the human resources needed to deliver mental health services which is likely to be exacerbated by COVID-19. Due to mental health workforce shortages, task-shifting and task-sharing approaches have been implemented in a number of countries. Clinical associates, a mid-level cadre working under the supervision of medical practitioners, could play a role in delivering mental health services but it is not clear if they are adequately prepared. This study explored the mental health curriculum content of the undergraduate clinical associate training programmes in South Africa and the views of key informants of the adequacy of training in mental health.

METHODS

A qualitative collective case study approach was utilised for this multisite study at the three universities in South Africa offering clinical associate degrees. The study consisted of in-depth interviews utilising videoconferencing of individuals involved in each programme and a document review. Thematic analysis of the data was conducted.

RESULTS

Nineteen interviews were conducted. Mental health formed part of the curriculum in all three programmes with the bulk of the training taking place in the final year of the three-year degree. Facility-based training ranged from two weeks to four weeks with one university only using hospitals with mental health units while two universities used hospitals at which the students were based for the year regardless of potential mental health exposure they would receive. The list of curricula inclusions extended to seldom-seen conditions. The quality of training and supervision appeared site-dependant and only one university set minimum experiential targets.

CONCLUSION

There is a basis on which to build the competencies and skills regarding mental health in this cadre. A training model that integrates mental health early in the undergraduate curriculum, focuses on common conditions and those with high disease burden, includes time in a mental health unit, provides facility-based trainers with detailed guidance to improve standardisation, and includes specific experiential targets that are monitored will enhance the potential utility of this cadre.

Entangled: A mixed method analysis of nurses with mental health problems who die by suicide

Nurses die by suicide at a higher rate than the general population. Previous studies have observed mental health problems, including substance use, as a prominent antecedent before death. The purpose of this study was to explore the characteristics of nurses who died by suicide documented in the death investigation narratives from the National Violent Death Reporting System from 2003 to 2017 using thematic analysis and natural language processing. One thousand three hundred and fifty-eight subjects met these inclusion criteria. Narratives from 601 subjects were thematically analyzed and 2544 individual narratives were analyzed using natural language processing. The analyses revealed five themes: "mental health treatment," "poor general health and chronic pain," "substance use," "worsening mental health after bereavement," and "repeating a family member's suicide." Mental health/substance use, chronic illness, and chronic pain were seen to coexist in a complex, interdependent manner that appeared to be entangled in the nurses' narratives before death. These findings echo the need for reducing the stigmatization of mental health problems in nursing and removing barriers to help-seeking behaviors as early preventative interventions. Future research is needed to determine if a comprehensive healthcare integration approach to address these entangled problems would reduce suicide vulnerability in nurses and improve their quality of life.