Suicide Prevention Interventions Research Articles

Suicide awareness homophily in adolescent peer support networks: A Swiss cross-sectional social network analysis

ObjectiveSuicide awareness, encompassing knowledge, attitudes, and behaviors related to suicide, plays a critical role in primary suicide prevention, especially among adolescents. However, little is known about how perceived suicide awareness is apparent in peer support networks in this population. This study examined the presence of suicide awareness homophily in adolescent peer support networks. We also explored other patterns of homophily and identified factors associated with the in-degree popularity of adolescents. MethodsWe used baseline data from a non-randomized, cluster-controlled trial assessing the effectiveness of a universal suicide prevention intervention in Swiss secondary schools (n = 194). We assessed perceived suicide awareness, support networks (including in-degree popularity, i.e., receiving a high number of nominations as a supportive peer), and other covariates. Data were analyzed using social network analyses. ResultsWe found evidence of suicide awareness homophily in peer support networks, where adolescents with high suicide awareness were more likely to connect with peers having high suicide awareness (p < .001). The same applied to those with low suicide awareness (p < .001). Age also emerged as a significant homophily factor. Girls (p = .024) and adolescents with high instrumental social support (p = .008) were more likely to be popular in peer support networks. ConclusionsThis study highlighted the homophily of suicide awareness in peer support networks and the need to focus on strengthening peer support networks and promoting suicide awareness in adolescents, particularly for those with low suicide awareness. Future suicide prevention programs, including peer-led interventions, should consider these findings to better target vulnerable subgroups and reduce suicide-related disparities.

Online versus in-person gatekeeper suicide prevention training: comparison in a community sample

Background Suicide prevention gatekeeper Training (GKT) is a frequently used suicide prevention intervention, however, there is still limited information about its long-term impact and effectiveness of online delivery. Aims The current study aimed to test the effectiveness of online GKT compared to in-person GKT in improving participant training outcomes. Methods A non-randomised comparison of pre-, post- and six-month follow-up data was conducted. In total 545 people participated in GKT, 317 in SafeTALK in-person sessions and 228 in online “Start” GKT by LivingWorks. Main outcome measures included: perceived knowledge; perceived preparedness; gatekeeper efficacy; and gatekeeper reluctance to intervene. Results Linear mixed model analysis demonstrated a significant effect for time for both modes of delivery for all four outcome measures. Post-hoc testing revealed that significant improvement in all outcomes were maintained above baseline at six-months following online and in-person training. Conclusions Online training performed as good, or better than in-person GKT, on measured outcomes demonstrating utility and effectiveness of the modality for use in suicide prevention training practices. Findings additionally indicate that online training may reach participants that in-person programs do not. This study provides evidence that Online GKT has significant utility in addressing a crucial need for online alternatives to evidence-based suicide prevention training.

Safety Planning Intervention Training Among Early Career Mental Health Professionals: Perception of Self-Efficacy, Usefulness and Feasibility

Introduction In 2021, in Argentina there were 3,639 deaths by suicide, equivalent to one death every three hours. Evidence indicates that brief suicide preventive interventions in emergency services, such as the Safety Planning Intervention (SPI), effectively reduce future suicidal ideation and attempts in both adults and adolescents. Objective To evaluate the perception of self-efficacy, and the feasibility and usefulness of a training in SPI in early career mental health professionals. Method Sixty-nine early career mental health professionals from Buenos Aires participated in a 3-hour SPI training. Through an online survey, measurements were taken in three times: before and after the training and 8–10 weeks after the training. Results All participants completed the pre- and post-training measures, and 43 of them completed the follow-up survey. Post-training measures showed an increase in self-efficacy, maintaining the effect at 8–10 weeks. The SPI was found useful and feasible to be implemented in clinical care. More than half of the participants reported having used the SPI during follow-up. Conclusion Results suggest that training in SPI is associated with an increased perception of self-efficacy of early career mental health professionals; this is maintained after 2 months post-training. In addition, the intervention is perceived as feasible, acceptable and useful for professionals in training.

Suicide Prevention Initiatives for Persons Living With HIV/AIDS Are Long Overdue

While human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS) researchers have made remarkable strides in the treatment, management, and prevention of HIV/AIDS, one area of research related to HIV/AIDS remains woefully underrepresented in the scientific literature: suicide prevention. The risk of death by suicide among people living with HIV/AIDS (PLWHA) is 100 times higher compared with that among the general population, and the lifetime prevalence of suicide attempts is similarly elevated. Though there have been many suicide prevention studies worldwide and effective interventions have been identified, few prevention strategies have been tested and implemented among PLWHA. A preliminary review of articles published since 2018 revealed only two behavioral interventions designed to address suicide risk in PLWHA, neither of which were based in the United States. No systematic reviews of behavioral interventions for suicide prevention among PLWHA have been published. In this commentary, we call for research to evaluate the effectiveness of suicide prevention interventions and policies that could decrease suicide rates among PLWHA.

"It's like an epidemic, we don't know what to do": The perceived need for and benefits of a suicide prevention programme in UK schools.

Despite emerging evidence for the effectiveness of school-based suicide prevention programmes worldwide, there are few being implemented in the United Kingdom, and their social validity (i.e., the feasibility, acceptability, and utility) is not yet known. We aimed to conduct a scoping study to determine: (1) the social validity and potential benefits of school-based suicide prevention interventions, (2) the perceived need for such interventions, and (3) barriers and facilitators to implementation. A total of 46 participants took part. Semi-structured interviews were conducted with mental health professionals (N = 8), school staff (N = 8), and parents whose children had experienced suicidal ideation/behaviours (N = 3) in England. Focus groups were also completed with children and young people (N = 27) aged 15-18 across three state secondary schools. Data were analysed using thematic framework analysis. Three themes were identified: (1) the need for and importance of suicide prevention in children and young people, (2) schools as a setting for delivery, and (3) key components of suicide prevention programmes. Participants overwhelmingly agreed that there is a need for a greater and more consistent emphasis on school-based suicide prevention. School appears to be an acceptable location for suicide prevention, and participants felt discussions about suicide should begin at the start of secondary school. However, there are potential barriers that need to be considered, including tailoring for neurodiversity, challenging cultural/family beliefs and stigma, managing personal experiences of suicidal thoughts or previous bereavement from suicide, and a lack of existing training for school staff.

Developing a clinical decision support system software prototype that assists in the management of patients with self-harm in the emergency department: protocol of the PERMANENS project.

Self-harm presents a significant public health challenge. Emergency departments (EDs) are crucial healthcare settings in managing self-harm, but clinician uncertainty in risk assessment may contribute to ineffective care. Clinical Decision Support Systems (CDSSs) show promise in enhancing care processes, but their effective implementation in self-harm management remains unexplored. PERMANENS comprises a combination of methodologies and study designs aimed at developing a CDSS prototype that assists clinicians in the personalized assessment and management of ED patients presenting with self-harm. Ensemble prediction models will be constructed by applying machine learning techniques on electronic registry data from four sites, i.e., Catalonia (Spain), Ireland, Norway, and Sweden. These models will predict key adverse outcomes including self-harm repetition, suicide, premature death, and lack of post-discharge care. Available registry data include routinely collected electronic health record data, mortality data, and administrative data, and will be harmonized using the OMOP Common Data Model, ensuring consistency in terminologies, vocabularies and coding schemes. A clinical knowledge base of effective suicide prevention interventions will be developed rooted in a systematic review of clinical practice guidelines, including quality assessment of guidelines using the AGREE II tool. The CDSS software prototype will include a backend that integrates the prediction models and the clinical knowledge base to enable accurate patient risk stratification and subsequent intervention allocation. The CDSS frontend will enable personalized risk assessment and will provide tailored treatment plans, following a tiered evidence-based approach. Implementation research will ensure the CDSS' practical functionality and feasibility, and will include periodic meetings with user-advisory groups, mixed-methods research to identify currently unmet needs in self-harm risk assessment, and small-scale usability testing of the CDSS prototype software. Through the development of the proposed CDSS software prototype, PERMANENS aims to standardize care, enhance clinician confidence, improve patient satisfaction, and increase treatment compliance. The routine integration of CDSS for self-harm risk assessment within healthcare systems holds significant potential in effectively reducing suicide mortality rates by facilitating personalized and timely delivery of effective interventions on a large scale for individuals at risk of suicide.

Digital health interventions for suicide prevention among LGBTQ: A narrative review.

Suicidal thoughts and behaviors (STBs) are prevalent within the Lesbian, Gay, Bisexual, Transgender, and Queers (LGBTQ) community, often exacerbated by challenges in accessing care and the perceived stigma and discrimination tied to disclosing one's identity. Digital health interventions that offer psychosocial self-help present a promising platform to reach individuals at risk of STBs, especially those who may not engage with conventional health services. This review aimed to assess the role of digital-based intervention in reducing STBs among LGBTQ individuals. We conducted a systematic literature search from three databases, PsycINFO, PubMed, and CINHAL, from 1st Jan 1990 to 31st December 2023. The review encompassed studies investigating the feasibility, acceptability, and impact of digital interventions on STBs, employing randomized control trials (RCTs), pseudo-RCTs, observational pre-posttest designs, and qualitative studies. Potential bias was evaluated using the McGill Mixed Methods Appraisal Tool (MMAT). Five non-overlapping studies were included, reporting data from 777 participants. The studies featured diverse types of digital interventions, including videos, online writing, and mobile applications. The studies included three RCTs, and two qualitative studies. Across most of these studies, notable enhancements or reductions in the proportion of participants reporting STBs were observed post-intervention, alongside improvements in help-seeking intentions. The findings underscored that the applications used in the studies were engaging, acceptable, and deemed feasible in effectively addressing suicide prevention among the LGBTQ community. Overall, digital interventions were found to be feasible and acceptable in suicide prevention among LGBTQ communities, demonstrating preliminary efficacy in increasing help-seeking behavior when experiencing suicidal thoughts and in reducing STBs. Therefore, advocating for widespread promotion and dissemination of digital health interventions is crucial, particularly in low- and middle-income countries (LMICs) with limited access to health services and heightened barriers to obtaining such services. Further research using fully powered RCT is imperative to assess the efficacy of these interventions.

Suicide prevention for substance using youth experiencing homelessness: study protocol for a randomized controlled trial

BackgroundWhile research on substance using youth experiencing homelessness (YEH) is increasing, there is a dearth of information regarding effective prevention interventions for these youth. Suicide is the leading cause of death among YEH and most youth do not access services that may be available to them. Therefore, this study seeks to address this gap in the research literature with the goal to identify an effective suicide prevention intervention that can be readily adopted by communities that serve these youth.MethodsThree hundred (N = 300) YEH with recent substance use and suicidal ideation or a recent suicide attempt will be recruited from the streets as well as a drop-in center serving YEH. After the baseline assessment, all youth will be randomly assigned to Cognitive Therapy for Suicide Prevention (CTSP) + Services as Usual (SAU) (N = 150) or to SAU alone (N = 150). SAU includes outreach, advocacy, and service linkage whereas YEH who receive CTSP will also receive ten CTSP sessions and an optional nine booster sessions. Follow-up assessments will be conducted at 3, 6, 9, and 12 months post-baseline. Theoretically derived mediators (e.g., cognitive distortions) will be tested to shed light on mechanisms associated with change, and the moderating effects of sex, race, sexual orientation, and baseline service connection will be examined. In order to ease future dissemination of the intervention to agencies serving YEH, we will rigorously assess acceptability, feasibility, fidelity, and cost associated with the delivery of our intervention approach using a mixed-methods approach.DiscussionThis study adds to a very small number of clinical trials seeking to prevent lethal suicide among a very high-risk group by addressing suicidal ideation directly rather than underlying conditions. It is hypothesized that youth receiving CTSP + SAU will show greater reductions in suicidal ideation (primary outcome), substance use, and depressive symptoms (secondary outcomes) over time compared to SAU alone, as well as improved risk and protective factors.Trial registrationNCT05994612. Date of Registration: August 16, 2023.

Can Your Smartphone Save A Life? A Systematic Review of Mobile-Based Interventions For Suicide Prevention

Mobile health (mHealth) apps are handy tools for tackling stigmatized mental health issues, including suicide. Mobile-based interventions for suicide prevention are easily accessible, increase the likelihood of honest reporting on sensitive topics and reduce stigma as compared to face-to-face or traditional interventions. Many mHealth apps for suicide prevention exist. However, the persuasive strategies employed in these apps and their efficacy remains unknown. To address this gap, we reviewed 80 suicide prevention apps available on app stores and in academic journals. We identified different persuasive strategies implemented in these apps using the Persuasive System Design (PSD) model. We also identified current trends within these apps, most and least-dominant implementations of persuasive strategies, effectiveness of apps, evaluation methods, and app content. We found that Personalization (n = 32) and Self-monitoring (n = 29) were the most-dominant strategies and Social Comparison, Social Role were the least-dominant strategies in suicide prevention apps. Based on our findings we discuss three major concerns in developing suicide prevention apps and offer recommendations for mitigating them. Our results show that persuasive strategies are a promising tool that can be used for designing suicide prevention apps. Our conclusions and recommendations will guide future work in suicide prevention app development and enhance the usability, effectiveness, and user-experience of such apps.

Psychological mechanisms of the development of suicidal ideation: Longitudinal cohort study.

This study aimed to investigate the mechanisms of the development of suicidal ideation and its moderating and protective factors. Drawing on the Interpersonal-psychological theory of suicide, we proposed that disruptions to belongingness, in conjunction with tolerance of health risk, may influence the development of suicidal ideation above and beyond psychosocial changes such as disruptions to finances and work. The study involved a longitudinal investigation of an Australian representative sample reporting suicidal ideation fortnightly for 12 weeks between March and June 2020. The results indicated that participants who reported higher levels of belongingness, mastery, and intolerance of health risk were less likely to experience suicidal ideation and had lower severity of suicidal ideation. Mastery significantly strengthened the negative link between belongingness and the incidence of suicidal ideation, while agreeableness significantly strengthened the negative link between belongingness and the severity of suicidal ideation over time. The findings suggest that supporting effective social connectedness during times of isolation and promoting self-efficacy, mastery, and regulation of risk tolerance, may be crucial for suicide prevention and therapeutic intervention.

Cognitive flexibility and self-injurious thoughts and behaviors: Future directions and identification of targets for interventions for suicide prevention.

Cognitive flexibility and self-injurious thoughts and behaviors: Future directions and identification of targets for interventions for suicide prevention.

Clinical utility of depression measures and symptoms: Implications for suicide risk assessment in high risk, resource limited youth populations.

Suicide risk for youth in resource- limited settings has been largely underrepresented in the literature and requires targeted examination of practical ways to address this growing public health concern. The present study focuses on the clinical utility of depression risk assessment tools addressing how and for whom suicide prevention intervention is most beneficial within a low-middle-income-country, high suicide risk youth sample. Youth who reported a previous suicide attempt versus those who did not were criterion to test the validity of depression and hopelessness symptom assessment tools. We used item analyses to identify depressive symptom endorsements that most informed youth suicide risk, which will better equip rural practitioners for targeted intervention and monitoring of youth with an already high risk for suicide. Findings demonstrated that practitioners may target symptoms of social anhedonia, depressed mood, concentration disturbance, feelings of worthlessness, sleep disturbance, and fatigue for suicide prevention-intervention efforts among high-risk youth. Study implications are for clinicians' use of the BDI-II and CES-D for depression symptom identification and suicide risk monitoring in settings with limited mental health infrastructure.

Defeat, entrapment and suicidal ideation in a Turkish community sample of young adults: an examination of the Integrated Motivational-Volitional (IMV) model of suicidal behaviour

The present study examines the relationships between defeat, entrapment, suicidal ideation, thwarted belongingness, and perceived burdensomeness through the Integrated Motivational-Volitional (IMV) Model of Suicidal Behaviour in a sample of Turkish young adults. The sample consisted of 451 individuals (72.5% females, M age= 25.20). The correlation analyses revealed significant relationships between defeat, entrapment, suicidal ideation, thwarted belongingness, perceived burdensomeness in the expected directions. Mediation and moderation analyses partly confirmed the assumptions of the motivational phase of the IMV model; entrapment played a mediating role between defeat and suicidal ideation, and thwarted belongingness (but not perceived burdensomeness) had a moderating role in the pathway between entrapment and suicidal ideation. These findings add a new dimension to the understanding of suicide risk and potential protective factors through the IMV model, which was tested for the first time in the Turkish population. It is anticipated that this study will contribute to suicide prevention intervention strategies, especially for young adults, at-risk group for suicide in Turkey.

Validation of a 9-item Perceived Suicide Awareness Scale (PSAS-9) for adolescents

BackgroundRobust empirical data on suicide awareness are needed, to better plan and evaluate suicide prevention interventions. However, there is a lack of validated measures of suicide awareness. This is especially true for perceived suicide awareness, which focuses on perceived knowledge about suicide, willingness, and confidence to talk about suicide and get help. Using the theoretical framework of Social Cognitive Theory, this study aimed to validate a measure of perceived suicide awareness. MethodsWe re-used data from a suicide prevention trial conducted in Swiss secondary schools (n = 366). Baseline and one-month follow-up data were used to validate the scale. The main measure was an initial 14-item Perceived Suicide Awareness Scale (PSAS). Perceived knowledge of help-seeking resources, suicide-related knowledge, and support networks were used to assess convergent validity. ResultsA nine-item version, the PSAS-9, showed satisfactory psychometric properties, including high internal consistency (α = 0.78), acceptable test-retest (r = 0.68), and a one-factor structure explaining 95 % of the variance. The convergent validity was acceptable (0.19 ≤ r ≤ 0.40). The PSAS-9 was not correlated with suicide-related knowledge (r = 0.02). LimitationsThe study missed a similar construct to properly assess convergent validity and had a modest sample size. In addition, it only included secondary school adolescents, so further research in other samples of youths is needed to robustly validate the PSAS-9. ConclusionsThis study was an important step towards validating a perceived suicide awareness scale, which appears as a new dimension of suicidality, distinct from suicide-related knowledge. The PSAS-9 could be used to develop, evaluate, and improve suicide prevention efforts.

The effectiveness of a suicide prevention program in primary care clinics supported by community public health resources: A difference-in-differences analysis

The importance of appropriate and intensive follow-up management for individuals identified with suicide risk through screening is highlighted. The Link between Primary Care Clinic and Public Health Resources Intervention(LinkPC-PH), a suicide prevention program in primary care clinics supported by community public health resources, was implemented at the district level in 2017. The purpose of the present study is to evaluate the effectiveness of the LinkPC-PH intervention by comparing suicide rates before(2014-2016) and after(2017-2019) implementation of the intervention using a difference-in-differences design. The LinkPC-PH comprises several dimensions of intervention including screening, risk assessment of suicidality, and referral in primary care clinics and crisis contact within 24 hours, case management, and safety planning led by public health professionals. After adjustment for district-level confounders, an intervention-implemented district had 2.87 fewer suicide deaths per 100,000 people in a population sample at post-intervention than would have been expected from the same trend in suicide rates as non-implemented intervention districts. In other words, the suicide rate in the intervention area decreased by 25% following the intervention. These results empirically substantiate suicide prevention programs in primary care clinics by community public health resources for reduced suicide rates to support effective community-based suicide prevention interventions.

The 4-level approach: A community-based intervention targeting depression and suicidal behaviour

Multilevel community-based interventions are considered the most efficient way to target diagnostic and treatment gaps concerning depression and to prevent suicidal behaviour. The 4-level intervention approach of the European Alliance against Depression (EAAD) combines the two partly overlapping aims of improving care for people with depression and preventing suicidal behavior. After forming a local stakeholder network in a certain region and a preparation phase, intervention activities start at four levels: i) Primary health care, ii) General public, iii) Community facilitators, iv) Affected individuals' and their relatives. This 4-level approach has been successfully adapted to different cultures and health care systems in more than 120 regions in and from outside of Europe. A systematic review recently has singled out this 4-level approach as the most promising community-based suicide preventive intervention worldwide. In this paper, the 4-level approach, it´s evidence base, and lessons learnt concerning implementation are presented.

Occurrence and predictors of lifetime suicidality and suicidal ideation in autistic adults

In the past 40 years, accumulating evidence suggested that autistic individuals are at an increased risk of suicidal thoughts and behaviors. This study examined the occurrence of various potential risk factors for lifetime suicidal behavior and suicidal thoughts in the past month in a Dutch cohort (Netherlands Autism Register) of autistic individuals using the Suicidal Behaviors Questionnaire (SBQ-R) and the Suicidal Ideation Attributes Scale (SIDAS). Our results show that the majority (80%) of the initial sample ( N = 1164) had thought about or attempted suicide in their lifetime, of which 15% had attempted suicide. In the final sample ( n = 421), backward linear regression analyses identified the following predictors for suicidal behavior: psychiatric comorbidity, loneliness, and higher number of autistic traits, F(3, 240) = 21.22, p &lt; 0.001, with R2 of 0.21. For suicidal thoughts in the past month, psychiatric comorbidity and a higher number of autistic traits were significant predictors, F(2, 241) = 20.34, p &lt; 0.001, with R2 of 0.14. In sum, additional risk markers for suicidal thoughts and behaviors in autistic individuals (e.g. number of autistic traits) should be considered when assessing the suicide risk in autistic individuals. Future research should focus on adapting suicide prevention interventions for autistic individuals, such as addressing loneliness as one of the intervention strategies. Lay Abstract Over the past few years, more and more research is showing that many autistic people are at an increased risk for suicide. In this study, we asked participants from the Netherlands Autism Register, which is longitudinal register including individuals with autism, about their possible experiences with thoughts and feelings about suicide. Specifically, we looked at whether these thoughts and feelings in their lifetime and in the past month were related to various factors (such as their age, gender, and having psychiatric disorder diagnoses). We found that 80% of the participants had experienced thoughts about or even attempted to take their own life at least once throughout their lifetime. Furthermore, in a subgroup of participants, we found that the presence of a psychiatric disorder diagnosis, feelings of loneliness, and a higher number of autistic traits were associated with experiencing suicidal thoughts and feelings in their lifetime. For those who experienced these suicidal thoughts in the past month, we found that having (multiple) psychiatric disorder diagnoses and a higher number of autistic traits were related to more severe and frequent thoughts about suicide in the past month. Our findings show that additional factors in autistic individuals should be considered when assessing the suicide risk, and it brings us one step closer to understanding why suicide is more common for autistic people.

Psychological risk factors predictive of suicidal distress in men receiving a community‐based brief psychological intervention

AbstractIntroductionAdaptable community‐based approaches for assessment and delivery of suicide prevention interventions for men experiencing suicidal crisis are needed. The lay your cards on the table (LYCT) component of the James' Place Model is a novel therapeutic approach comprised of four sets of card variables that correspond with suicidal risk factors. This study investigated the LYCT in predicting suicidal distress among men.MethodsCross‐sectional data of 511 men aged 18–69 years (M = 34.59 years; SD = 12.30) collected between 1st August 2018 and 29th July 2021 were assessed to predict suicidal distress measured using the CORE Clinical Outcome Measures (CORE‐OM).ResultsFrom four categories comprising the LYCT, correlational analyses demonstrated that 20 associations emerged as statistically significant (r's = 0.12–0.19). When these were included in regression analyses, effect sizes explained 2%–5% variance in CORE‐OM outcomes (R2).ConclusionUse of LYCT is supported for engaging men in the assessment of suicide risk factors and to inform tailoring of intervention delivery to suit the individual needs of men experiencing suicidal crisis.

Suicide prevention during disasters and public health emergencies: a systematic review.

Disasters and public health emergencies increasingly affect populations around the world, posing significant wide-ranging challenges for societies as well as for effective public health and suicide prevention. Intervention research is essential to inform evidence-based responses. Yet, despite evident public concern and growing research interest in heightened suicide risks and impacts, little is known about effective suicide prevention interventions in these contexts. We conducted a systematic review to examine the outcomes of suicide prevention strategies implemented in disasters and public health emergencies. We searched five databases (Medline, Embase, PsycINFO, Web of Science, PTSDpubs) from inception to December 2022 for peer-reviewed quantitative studies that reported relevant intervention outcomes (changes in the frequency of suicide, suicide attempts, self-harm) for populations affected by disasters and public health emergencies. We assessed the quality of eligible studies using the Quality Assessment Tool for Quantitative Studies, and distilled review findings through narrative synthesis. The study protocol was registered with PROSPERO (CRD42021276195). Ten eligible and mostly observational studies were included in this review, which examined a range of universal, selective, and indicated interventions. Three of five studies of interventions in public health emergencies indicated the potential effectiveness and buffering effects of generic disaster related mental health support, access to urban parks, as well as the beneficial role of video-enabled tablets in facilitating treatment access and outcomes. Similarly, three of five studies of interventions in disaster contexts provided evidence of the beneficial role of universal economic security measures, national gun laws and buy back schemes, and volunteer-delivered mental health support. Overall, four of six studies with favorable outcomes examined interventions specifically deployed in disaster or public health emergency contexts, whereas two studies examined ongoing existing interventions. Three studies, respectively, of suicide prevention focused interventions or generic interventions reported favorable outcomes. The quality of included studies was variable, with two studies being rated as 'strong', four studies rated as 'moderate', and four studies rated as 'weak'. Notwithstanding the limited scope and variable quality of published evidence, our review findings highlight the breadth of interventions that have been applied in such contexts with some success. There is a need for further research on effective interventions and intervention adaptations to inform evidence-based suicide prevention responses to disasters and public health emergencies. https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42021276195, PROSPERO ID CRD42021276195.

Advancing early detection of suicide? A national study examining socio-demographic factors, antecedent stressors and long-term history of self-harm

BackgroundA range of factors including mental disorders, adverse events and history of self-harm are associated with suicide risk. Further examination is needed of the characteristics of suicides which occur without established risk factors, using national surveillance systems. MethodsData on all suicides in Ireland from 2015 to 2017 were drawn from the Irish Probable Suicide Deaths Study (IPSDS). Variables examined included socio-demographics, psychiatric history and precipitant stressors. Suicide data were linked with data on prior self-harm from the National Self-Harm Registry Ireland (NSHRI). Latent Class Analysis (LCA) was used to identify sub-groups of suicide cases. ResultsOf the 1809 individuals who died by suicide, 401 (22.2 %) had a history of hospital-treated self-harm. Four distinct profiles of suicides were identified. One group was marked by high levels of prior self-harm and mental health conditions. Two of the groups included few individuals with a history of self-harm but had notably high levels of mental health conditions. These two groups had relatively high levels of reported chronic pain or illness but differed in terms of socio-demographics. The final group, predominantly male, had markedly low levels of mental health conditions or self-harm but high levels of personal stressors and substance use. LimitationsThe use of coronial data may be limited by bias in the collecting of information from the deceased's family members. ConclusionsA sub-group of suicide cases exists without any psychiatric or self-harm history but with salient occupational or health-related proximal stressors. Suicide prevention interventions should include occupational settings and should promote mental health literacy.