Why There Is a Need for an International Nomenclature and Classification System for Suicide

Characteristics of surveillance systems for suicide and self-harm: A scoping review

BACKGROUND

Suicide is a complex public health issue. Surveillance systems play a vital role in identifying trends and epidemiologic needs, informing public health strategies, and tailoring effective context-based suicide prevention interventions.

AIM

To identify and summarise the characteristics of specific surveillance systems and general health behaviour that include data onsuicide and self-harm.

METHOD

A scoping review following the JBI recommendations and PRISMA-ScR guidelines identified 29 relevant studies on suicide and self-harm surveillance systems. A systematic search was performed on Cinahl, Embase, Lilacs-Latin American and Caribbean Health Sciences Literature, PubMed-US National Library of Medicine, Scopus, and Google Scholar. The eligibility criteria include papers that use qualitative, quantitative or mixed methods with no restrictions on time or language. The following papers were excluded regarding euthanasia and assisted suicide, as well as papers that did not explicitly describe suicide, self-harm, and surveillance systems. Two researchers independently screened the materials for eligibility and extracted data from the included studies. Data analysis was conducted using content analysis.

RESULTS

Twenty-nine references were included, and 30 surveillance systems were identified and classified into general health behaviour surveillance (n = 15) and specific systems for suicide and self-harm (n = 15). General health behaviour systems often operate at national data collection level, collecting non-fatal data in healthcare settings, mainly emergency departments. The specific systems exhibited greater variability in terms of context, involved actors, data collection level, data collection procedures, and case classification. Limitations found by the studies pointed mostly to case definitions and data quality. Co-production, intersectoral collaboration, clear case definition criteria and data standardisation are essential to improve surveillance systems for suicide and self-harm.

CONCLUSIONS

This review identified the characteristics of surveillance systems for suicide and self-harm. Monitoring and evaluation are crucial for ongoing relevance and impact on prevention efforts.

Prototyping the implementation of a suicide prevention protocol in primary care settings using PDSA cycles: a mixed method study

Introduction

In Canada, approximately 4,500 individuals die by suicide annually. Approximately 45% of suicide decedents had contact with their primary care provider within the month prior to their death. Current versus never smokers have an 81% increased risk of death by suicide. Those who smoke have additional risks for suicide such as depression, chronic pain, alcohol, and other substance use. They are more likely to experience adverse social determinants of health. Taken together, this suggests that smoking cessation programs in primary care could be facilitators of suicide prevention, but this has not been studied.

Study objectives

The objectives of the study are to understand barriers/facilitators to implementing a suicide prevention protocol within a smoking cessation program (STOP program), which is deployed by an academic mental health and addiction treatment hospital in primary care clinics and to develop and test implementation strategies to facilitate the uptake of suicide screening and assessment in primary care clinics across Ontario.

Methods

The study employed a three-phase sequential mixed-method design. Phase 1: Conducted interviews guided by the Consolidated Framework for Implementation Research exploring barriers to implementing a suicide prevention protocol. Phase 2: Performed consensus discussions to map barriers to implementation strategies using the Expert Recommendations for Implementing Change tool and rank barriers by relevance. Phase 3: Evaluated the feasibility and acceptability of implementation strategies using Plan Do Study Act cycles.

Results

Eleven healthcare providers and four research assistants identified lack of training and the need of better educational materials as implementation barriers. Participants endorsed and tested the top three ranked implementation strategies, namely, a webinar, adding a preamble before depression survey questions, and an infographic. After participating in the webinar and reviewing the educational materials, all participants endorsed the three strategies as acceptable/very acceptable and feasible/very feasible.

Conclusion

Although there are barriers to implementing a suicide prevention protocol within primary care, it is possible to overcome them with strategies deemed both acceptable and feasible. These results offer promising practice solutions to implement a suicide prevention protocol in smoking cessation programs delivered in primary care settings. Future efforts should track implementation of these strategies and measure outcomes, including provider confidence, self-efficacy, and knowledge, and patient outcomes.

The fearlessness about death scale's efficacy for differentiating suicide attempts from non-suicidal self-injury, a meta-analysis

We used multivariate meta-analysis modeling variances and covariances of suicidal ideation, suicide attempts, and non-suicidal self-injury to investigate if the Fearlessness About Death scale differentiated between suicide attempts and non-suicidal self-injury. The systematic search yielded 27 studies that fulfilled the inclusion criteria. The association of suicidal ideation with suicide attempts was comparable to the association of suicidal ideation with non-suicidal self-injury. The Fearlessness About Death scale weakened both associations to a comparative degree. These results cast doubt on the clinical utility of the Fearlessness About Death scale, as well as the self-assessment of suicidal ideation, suicide attempts and non-suicidal self-injury.

Social-geographic disparities in suicidal ideations among methamphetamine users in the USA

IMPORTANCE

Methamphetamine use is a growing public health concern nationwide. Suicide is the second leading cause of death in 2019 for US citizens aged 10-14 years and 25-34 years and is also a significant public health concern. Understanding the intersection of methamphetamine use and suicidal ideation (SI) is necessary to develop public health and policy solutions that mitigate these ongoing severe public health issues.

OBJECTIVE

Our objective was to examine SI in methamphetamine users to allow us to determine prevalence and trends by age, sex, race, and geographical region.

DESIGN, SETTINGS, AND PARTICIPANTS

Using data collected between 2008 and 2019 from the National Inpatient Sample (NIS) database, we identified hospital admissions (HA) of patients ≥18 years of age with a primary or secondary diagnosis of SI who were also diagnosed as methamphetamine users. Those who used other substances with methamphetamine were excluded from the analysis.

MAIN OUTCOME AND MEASURES

To determine the trend and prevalence of hospital admissions due to SI and SI among methamphetamine users, we used trend weights to calculate the national estimates and performed design-based analysis to account for complex survey design and sampling weights on data collected between 2008 and 2019 in the US.

RESULTS

The prevalence ratio (PR) of hospitalizations with concurrent SI and methamphetamine use increased 16-fold from 2008 to 2019. The most significant increase occurred between 2015 and 2016; the PR doubled from 6.07 to 12.14. The PR of hospitalizations with concurrent SI and methamphetamine use was highest in patients aged 26-40 (49.08%) and 41-64 (28.49%). Patients aged 41-64 showed the most significant increase from 2008 to 2019 (15.8-fold). While non-Hispanic White patients comprised most of these hospitalizations (77.02%), non-Hispanic Black patients showed the highest proportional increase (39.1-fold). The Southern and Western regions in the US showed the highest PR for these hospitalizations (34.86% and 34.31%, respectively).

CONCLUSION AND RELEVANCE

Our findings indicate that SI in methamphetamine users has been increasing for some time and is likely to grow. In addition, our results suggest that these patients are demographically different. Both conditions are associated with a lesser likelihood of seeking and receiving care. Therefore, when addressing increased SI or methamphetamine use, learning more about patients who share both conditions is necessary to ensure proper care.

The incidence and profile of self-harm among prisoners: findings from the Self-Harm Assessment and Data Analysis Project 2017-2019

PURPOSE

Internationally, rates of suicide and lifetime self-harm are higher in prisoners compared to the general population. This study aims to identify specific characteristics of self-harming behaviour and to establish a profile of prisoners who engage in self-harm.

DESIGN/METHODOLOGY/APPROACH

Data from the Self-Harm Assessment and Data Analysis Project (SADA) on self-harm episodes in prisons in the Republic of Ireland during 2017-2019 was used. Annual rates per 1,000 were calculated by age and gender.

FINDINGS

The rate of self-harm between 2017 and 2019 was 31 per 1,000 prisoners for men and six times higher at 184 per 1,000 prisoners for women. The rate of self-harm was twice as high among prisoners on remand than sentenced prisoners (60.5 versus 31.3 per 1,000). The highest rates of self-harm among sentenced prisoners were observed among 18-29-year-old men (45 per 1,000) and women (125 per 1,000). The rate of self-harm was higher among women prisoners in all age groups. Contributory factors associated with self-harm were mainly related to mental health but also linked to a prisoner's environment and relationships.

PRACTICAL IMPLICATIONS

There is a need to ensure access to timely and suitable mental health services, including both appropriate referral and provision of evidence-based mental health interventions to address the needs of these cohorts.

ORIGINALITY/VALUE

To the best of the authors' knowledge, this is the first national study to systematically examine incidence and patterns of self-harm among the prison population in Ireland. The recording of severity/intent of each episode is novel when assessing self-harm among the prison population.

Portability of natural language processing methods to detect suicidality from clinical text in US and UK electronic health records

Background

In the global effort to prevent death by suicide, many academic medical institutions are implementing natural language processing (NLP) approaches to detect suicidality from unstructured clinical text in electronic health records (EHRs), with the hope of targeting timely, preventative interventions to individuals most at risk of suicide. Despite the international need, the development of these NLP approaches in EHRs has been largely local and not shared across healthcare systems.

Methods

In this study, we developed a process to share NLP approaches that were individually developed at King's College London (KCL), UK and Weill Cornell Medicine (WCM), US - two academic medical centers based in different countries with vastly different healthcare systems. We tested and compared the algorithms' performance on manually annotated clinical notes (KCL: n = 4,911 and WCM = 837).

Results

After a successful technical porting of the NLP approaches, our quantitative evaluation determined that independently developed NLP approaches can detect suicidality at another healthcare organization with a different EHR system, clinical documentation processes, and culture, yet do not achieve the same level of success as at the institution where the NLP algorithm was developed (KCL approach: F1-score 0.85 vs. 0.68, WCM approach: F1-score 0.87 vs. 0.72).

Limitations

Independent NLP algorithm development and patient cohort selection at the two institutions comprised direct comparability.

Conclusions

Shared use of these NLP approaches is a critical step forward towards improving data-driven algorithms for early suicide risk identification and timely prevention.

Risk and Protective Factors in Adolescent Suicidal Behaviour: A Network Analysis

Given that death by suicide continues to rank among the top three causes of death during adolescence, new psychological models may contribute critical insight towards understanding the complex interactions between risk and protective factors in suicidal behaviour. The main objective of this study was to analyse the psychological network structure of suicidal behaviour and putative risk and protective factors in school-aged adolescents. Methods: Stratified random cluster sampling was performed. The final sample comprised 1790 students (53.7% female, M = 15.7 years, SD = 1.26). Instruments were administered to assess suicidal behaviour, emotional and behavioural difficulties, prosocial behaviour, subjective well-being, self-esteem, depressive symptomatology, academic performance, socio-economic status, school engagement, bullying, and cyberbullying. Results: In the estimated psychological network, the node with the highest strength was depressive symptomatology, and that with the highest expected influence value was bullying. Suicidal behaviour was positively connected to symptoms of depression and behavioural problems. In addition, suicidal behaviour was negatively connected to self-esteem and personal well-being. The results of the stability analysis indicated that the network was accurately estimated. Conclusions: Suicidal behaviour can be conceptualised as a dynamic, complex system of cognitive, emotional, and affective characteristics. New psychological models allow us to analyse and understand human behaviour from a new perspective, suggesting new forms of conceptualisation, evaluation, intervention, and prevention.

Peripheral BDNF levels in psychiatric patients with and without a history of suicide attempt: A systematic review and meta-analysis

OBJECTIVE

Psychiatric patients are at increased risk of attempting suicide. Several potential biomarkers of suicide risk have been proposed with inconsistent findings. The present paper aimed to evaluate differences in peripheral BDNF levels between psychiatric patients with and without a history of suicide attempts.

METHODS

We conducted a systematic review and meta-analysis following the PRISMA guidelines. Relevant papers published up to January 5, 2021 were identified searching the electronic databases Web of Knowledge^SM and PsycINFO. A random-effect meta-analysis was conducted using Stata 16.

RESULTS

Thirteen studies met inclusion criteria. Overall, no significant differences in BDNF levels between the two groups were found (13 studies, n = 1340, Hedge's g = -0.21, 95% CI -0.44 to 0.02). Heterogeneity was substantial (I² = 72.91%). Subgroup analyses revealed that BDNF levels were significantly reduced in plasma with medium effect size (5 studies, n = 363, Hedge's g = -0.44, 95% CI -0.86 to -0.02), but not in serum (8 studies, n = 977, Hedge's g = -0.09, 95% CI -0.33 to 0.15). No significant differences were found according to the type of diagnosis (major depressive disorder vs. other diagnoses) or the period of suicide attempt (lifetime vs. recent).

CONCLUSION

The utility of BDNF as a biomarker of suicide attempts in psychiatric patients appears limited to its plasma concentration. Although caution interpretation is needed, our findings may represent a starting point for the design of rigorous case-control studies exploring the association between neurotrophins and suicidal behaviors.

A qualitative content analysis study using electronic medical records to understand youth suicide attempts

PROBLEM

Suicide is the second leading cause of death for people aged 10-24 in the United States. The purpose of this study was to examine circumstances youth self-reported when presenting to hospitals due to a suicide attempt.

METHODS

A qualitative content analysis of clinicians' notes identified major themes of patients' lived experiences and circumstances leading up to suicide attempt.

FINDINGS

A total of 231 unique patient encounters were included in this study. Mean age of participants was 14.71 (SD = 2.04) the majority being female (75%) and Non-Hispanic White (48%). Four themes characterized contributing factors: (1) trauma, (2) relationship quality, (3) risky behaviors, and (4) personal emotions and symptoms.

CONCLUSIONS

Findings suggest commonalities among these youths' circumstances and experiences which may have precipitated a suicide attempt. These data will aid nurses and other health-care providers in understanding the complex, and often traumatic, histories of youth who attempt suicide. Improved knowledge in this area has the potential to direct improved screening, treatment, and referral protocols as well as suggest areas to focus prevention efforts.

International study of definitions of English-language terms for suicidal behaviours: a survey exploring preferred terminology

OBJECTIVES

Explore international consensus on nomenclatures of suicidal behaviours and analyse differences in terminology between high-income countries (HICs) and low/middle-income countries (LMICs).

DESIGN

An online survey of members of the International Organisation for Suicide Prevention (IASP) used multiple-choice questions and vignettes to assess the four dimensions of the definition of suicidal behaviour: outcome, intent, knowledge and agency.

SETTING

International.

PARTICIPANTS

Respondents included 126 individuals, 37 from 30 LMICs and 89 from 33 HICs. They included 40 IASP national representatives (65% response rate), IASP regular members (20% response rate) and six respondents from six additional countries identified by other organisations.

OUTCOME MEASURES

Definitions of English-language terms for suicidal behaviours.

RESULTS

The recommended definition of 'suicide' describes a fatal act initiated and carried out by the actors themselves. The definition of 'suicide attempt' was restricted to non-fatal acts with intent to die, whereas definition of 'self-harm' more broadly referred to acts with varying motives, including the wish to die. Almost all respondents agreed about the definitions of 'suicidal ideation', 'death wishes' and 'suicide plan'. 'Aborted suicide attempt' and 'interrupted suicide attempt' were not considered components of 'preparatory suicidal behaviour'. There were several differences between representatives from HICs and LMICs.

CONCLUSION

This international opinion survey provided the basis for developing a transcultural nomenclature of suicidal behaviour. Future developments of this nomenclature should be tested in larger samples of professionals, including LMICs may be a challenge.

Factors associated with serious intent to die among suicide attempters in Hungary

As suicide attempts pose major risk for future suicide death, understanding the underlying factors of suicide attempts and suicidal behaviour is an important mental health imperative. The aim of this study was to examine suicide attempts with a special focus on the intention. A total of 2540 discharge summaries were collected between 2009 and 2011 in Miskolc, Hungary, and a content analysis was conducted. Data regarding the method, the reason for suicide attempts, the amount, the source, and the type of the medication taken were examined. Deliberate self-poisoning was the most frequent method (73.8%) committed with more than 200 different types of drugs. 40.5% of the patients attempted suicide with an intent to die, whilst 35.6% of the patients wanted to escape from an unbearable situation. Older age groups, greater amount of taken pills, and affective disorders were associated with self-reported serious intention to die. Our findings should be taken into consideration when monitoring drugs for older patients with depressive disorders.

Predictors of Traumatic Suicide Attempts in Youth Presenting to Hospitals with Level I Trauma Centers

BACKGROUND

Limited research exists examining the predictors of suicide attempts by mechanism.

OBJECTIVE

The purpose of this study was to examine predictors of traumatic suicide attempts in youth.

METHODS

Data came from patients 5-18 years of age presenting because of a suicide attempt at 2 hospitals in Central Texas with level I trauma centers. Univariate logistic regression examined the association between traumatic suicide attempts and variables describing the patient's demographic, mental health, and social information. We used the Mann-Whitney U test to examine the association between traumatic suicide attempts and the continuous variable of age.

RESULTS

Of 231 patients included in this study, most were female (75.8%), non-Hispanic white (48.1%), and had a median age of 15.0 years (interquartile range 14-16). Compared with patients presenting because of an intentional overdose, patients presenting because of traumatic suicide attempts were associated with a reported criminal history (odds ratio [OR] 14.50 [95% confidence interval {CI} 3.84-54.82]), reported Child Protective Services history (OR 3.26 [95% CI 0.99-10.77]), being publicly insured or uninsured (OR 1.80 [95% CI 1.02-3.19]), male (OR 2.37 [95% CI 1.28-4.38]), and identifying as Hispanic (OR 2.01 [95% CI 1.10-3.68).

CONCLUSIONS

Our findings inform targeted preventative resources and education efforts to populations of greatest need.

Parents' Experience and Psychoeducation Needs When Supporting a Young Person Who Self-Harms

BACKGROUND

Self-harm in young people can have a substantial negative impact on the well-being and functioning of parents and other carers. The "Coping with Self-Harm" booklet was originally developed in the UK as a resource for parents and carers of young people who self-harm, and an adaptation study of this resource was conducted in Australia. This paper presents qualitative analysis of interviews with parents about their experiences and psychoeducational needs when supporting a young person who engages in self harm.

METHODS

The qualitative study drew on semi-structured individual and group interviews with parents (n = 19 participants) of young people who self-harm. Data were analysed using Thematic Analysis.

RESULTS

The analysis identified six themes: (1) the discovery of self-harm, (2) challenges in the parent-young person relationship, (3) parents' need to understand self-harm, (4) parents' emotional reactions to self-harm, (5) the importance of self-care and help-seeking among parents, and (6) the need for psychoeducational resources.

CONCLUSION

The study highlights the need for support for parents and carers of young people who engage in self-harm, including development and adaptation of resources, such as the "Coping with Self-Harm" booklet, of which an Australian version has now been developed.

Duty to Warn: Antidepressant Black Box Suicidality Warning Is Empirically Justified

The United States Food and Drug Administration issued a Black Box warning in October 2004 after placebo-controlled trials of antidepressant medications found an increased risk of suicidal thoughts and behaviors among children and adolescents taking antidepressant medications relative to placebo. Subsequently, some researchers have concluded that the Black Box warning caused severe unintended consequences; specifically, they have argued that the warning led to reduced use of antidepressants among youth, which led to more suicides. In this paper, we critically examine research regarding the Black Box warning's alleged deleterious consequences. One study claimed that controlled trials did not actually find an increased risk of suicidality among youth taking fluoxetine relative to those taking placebo, but its measure of suicidality is likely invalid. We found that ecological time series studies claiming that decreasing antidepressant prescriptions are linked to higher rates of suicide attempts or actual suicides among youth were methodologically weak. These studies exhibited shortcomings including: selective use of time points, use of only a short-term time series, lack of performing statistical analysis, not examining level of severity/impairment among participants, inability to control confounding variables, and/or use of questionable measures of suicide attempts. Further, while some time-series studies claim that increased antidepressant prescriptions are related to fewer youth suicides, more recent data suggests that increasing antidepressant prescriptions are related to more youth suicide attempts and more completed suicides among American children and adolescents. We also note that case-control studies show increased risk of suicide attempts and suicide among youth taking antidepressants, even after controlling for some relevant confounds. As clinical trials have the greatest ability to control relevant confounds, it is important to remember such trials demonstrated increased risk of suicidality adverse events among youth taking antidepressants. The Black Box warning is firmly rooted in solid data whereas attempts to claim the warning has caused harm are based on quite weak evidence.

Contemporary Classifications of Suicidal Behaviors

Background: The absence of agreed-upon terminology, definitions, and operational classifications has hampered research in the field of suicidology for many decades. Aims and Method: We systematically reviewed contemporary classifications of suicidal behavior using the scope of the classification (comprehensive vs. restricted or single behaviors), and the presence or absence of a classification scheme and an operational definition of intent as features to enable analysis and comparison. Results: A chronological perspective shows that classification systems tend to be more and more precise and operational for clinical and research field work. However, on an international level, the development of classifications appears to precede the establishment of agreed-upon definitions and terms to describe suicidal behavior. Limitations: The review was conducted in English only. Conclusion: Universal agreement on definitions and terms for suicidal behavior should precede the development of classifications.

International Study of Definitions of English-Language Terms for Suicidal Behaviours: protocol of an opinion survey

INTRODUCTION

The objective of present paper is to outline the methodology of the International Study of Definitions of English-Language Terms for Suicidal Behaviours (ISDELTSB). The aim of the study is to survey existing English language terms and definitions used around the world for suicidal behaviour.

METHODS AND ANALYSIS

The ISDELTSB is a worldwide survey based on one 'designated expert' per each WHO-registered country. 'Experts' were contacted through the International Association for Suicide Prevention (IASP), the World Psychiatric Association and the World Organization of Family Doctors. Each individual was sent an invitation to participate and a link to an online questionnaire. A comparison sample was created by inviting all IASP members to respond to the questionnaire. The questionnaire was designed to assess respondents' preferences about a particular set of terms and definitions by using the four major criteria of the definition of suicide identified in the literature (outcome, intent, knowledge and agency). The questionnaire used a multiple-choice question format. Participants were asked to choose one term in the list for each of the proposed definitions. Statements and definitions in the questionnaire were elaborated using the four main features of the definition of suicide, starting by the definitions and terms for which there is already a certain degree of consensus and then progressing to definitions and terms less agreed on.

ETHICS AND DISSEMINATION

The study protocol obtained approval of Griffith University's Ethics Committee (ethics reference number 2017/601) and in accordance with the Australian National Statement on Ethical Conduct in Human Research. Respondents are asked if they accept to be personally acknowledged in any output originating from this study, and if so to provide their full name, title and affiliations. If respondents do not accept, they are informed that the conduct of this research respects Griffith University's Privacy Plan and that identified personal information is confidential and that anonymity will at all times be safeguarded. As detailed in the questionnaire cover letter, by answering the online or paper version of the questionnaire, respondents express their consent to participate. Dissemination of results will be done through a peer-reviewed journal article publication. This study aims to map the international use of definitions and terms for suicidal behaviour and ideation and favour the future use of an internationally shared set of terms and definitions. This will hopefully avoid undue duplication of efforts and reliably permit meta-analysis of data produced in different countries.

Contemporary Definitions of Suicidal Behavior: A Systematic Literature Review

To address the lack of comparability around the world, we conducted a systematic review of existing definitions of suicide and suicidal behaviors. In the literature, four key features appear to cover the vast majority of concepts underpinning definitions: agency, knowledge of a potential fatal outcome, intent, and outcome. Intent and outcome appear to be the most consensual features of definitions of suicide, albeit revealing interesting conceptual variations. The four key features could be used to devise a research tool able to explore the meanings of suicide across different countries and different cultures.

Preferences in Information Processing and suicide: Results from a young adult health survey in the United Kingdom

BACKGROUND

Suicide prevention literature currently suffers from inconsistent measurement and incomplete theoretical development.

AIMS

Using a recommended suicide measurement approach for epidemiological studies (i.e. the Suicidal Behaviors Questionnaire-Revised (SBQ-R)), the present investigation assessed United Kingdom young adult suicide prevalence rates. This study also investigated the utility of a Preferences in Information Processing (PIP) model of suicide in identifying those at increased odds for elevated suicide risk, as well as lifetime ideation and attempt.

METHOD

A cross-sectional mental health and well-being survey study ( n = 414) was conducted.

RESULTS

The prevalence rates of elevated risk (49.8%), lifetime ideation only (55.3%) and lifetime attempt (13.5%) were high. Bivariate associations demonstrated that elevated depression, anxiety and Need for Affect (NFA) Avoidance were associated with worsened suicide outcomes, whereas elevated Need for Cognition (NFC) was associated with decreased suicide risk. Logistic regression results identified depression and NFA Avoidance as the strongest predictors of elevated suicide risk. Multinomial logistic regression results established several PIP-based moderation effects for depression and anxiety in which NFA Approach and NFC differentially influenced odds of suicide attempt group membership.

CONCLUSION

The SBQ-R is an appropriate tool for UK young adult suicide research. NFA and NFC demonstrated potential for inclusion in young adult suicide prevention programming. Further research is needed to fully evaluate the PIP model of suicide and effectiveness of proposed theory-based approaches to suicide prevention.

Tracking progress in suicide prevention in Indigenous communities: a challenge for public health surveillance in Canada

Indigenous peoples in Canada experience disproportionate rates of suicide compared to non-Indigenous populations. Indigenous communities and organizations have designed local and regional approaches to prevention, and the federal government has developed a national suicide prevention framework. However, public health systems continue to face challenges in monitoring the population burden of suicide and suicidal behaviour. National health data systems lack Indigenous identifiers, do not capture data from some regions, and do not routinely engage Indigenous communities in data governance. These challenges hamper efforts to detect changes in population-level outcomes and assess the impact of suicide prevention activities. Consequently, this limits the ability to achieve public health prevention goals and reduce suicide rates and rate inequities.

This paper provides a critical analysis of the challenges related to suicide surveillance in Canada and assesses the strengths and limitations of existing data infrastructure for monitoring outcomes in Indigenous communities. To better understand these challenges, we discuss the policy context for suicide surveillance and examine the survey and administrative data sources that are commonly used in public health surveillance. We then review recent data on the epidemiology of suicide and suicidal behaviour among Indigenous populations, and identify challenges related to national surveillance.

To enhance capacity for suicide surveillance, we propose strategies to better track progress in Indigenous suicide prevention. Specifically, we recommend establishing an independent community and scientific governing council, integrating Indigenous identifiers into population health datasets, increasing geographic coverage, improving suicide data quality, comprehensiveness, and timeliness, and developing a platform for making suicide data accessible to all stakeholders. Overall, the strategies we propose can build on the strengths of the existing national suicide surveillance system by adopting a collaborative and inclusive governance model that recognizes the stake Indigenous communities have in suicide prevention.

The #chatsafe project. Developing guidelines to help young people communicate safely about suicide on social media: A Delphi study

INTRODUCTION

Many countries have developed guidelines advocating for responsible reporting of suicidal behaviour in traditional media. However, the increasing popularity of social media, particularly among young people, means that complementary guidelines designed to facilitate safe peer-peer communication are required. The aim of this study was to develop a set of evidence informed guidelines to assist young people to communicate about suicide via social media with the input of young people as active participants of the study.

METHODS

Systematic searches of the peer-reviewed and grey literature were conducted resulting in a 284-item questionnaire identifying strategies for safe communication about suicide online. The questionnaire was delivered over two rounds to two panels consisting of Australian youth advocates; and international suicide prevention researchers and media and communications specialists. Items were rerated if they were endorsed by 70-79.5% of both panels, or if 80% or more of one panel rated the item as essential or important. All items that were endorsed as essential or important by at least 80% of both panels were included in the final guidelines.

RESULTS

A total of 173 items were included in the final guidelines. These items were organised into the following five sections: 1) Before you post anything online about suicide; 2) Sharing your own thoughts, feelings, or experience with suicidal behaviour online; 3) Communicating about someone you know who is affected by suicidal thoughts, feelings or behaviours; 4) Responding to someone who may be suicidal; 5) Memorial websites, pages and closed groups to honour the deceased.

DISCUSSION

This is the first study to develop a set of evidence-informed guidelines to support young people to talk safely about suicide on social media. It is hoped that they will be a useful resource for young people and those who support them (e.g., parents, teachers, community workers and health professionals).

The #chatsafe project. Developing guidelines to help young people communicate safely about suicide on social media: A Delphi study

INTRODUCTION

Many countries have developed guidelines advocating for responsible reporting of suicidal behaviour in traditional media. However, the increasing popularity of social media, particularly among young people, means that complementary guidelines designed to facilitate safe peer-peer communication are required. The aim of this study was to develop a set of evidence informed guidelines to assist young people to communicate about suicide via social media with the input of young people as active participants of the study.

METHODS

Systematic searches of the peer-reviewed and grey literature were conducted resulting in a 284-item questionnaire identifying strategies for safe communication about suicide online. The questionnaire was delivered over two rounds to two panels consisting of Australian youth advocates; and international suicide prevention researchers and media and communications specialists. Items were rerated if they were endorsed by 70-79.5% of both panels, or if 80% or more of one panel rated the item as essential or important. All items that were endorsed as essential or important by at least 80% of both panels were included in the final guidelines.

RESULTS

A total of 173 items were included in the final guidelines. These items were organised into the following five sections: 1) Before you post anything online about suicide; 2) Sharing your own thoughts, feelings, or experience with suicidal behaviour online; 3) Communicating about someone you know who is affected by suicidal thoughts, feelings or behaviours; 4) Responding to someone who may be suicidal; 5) Memorial websites, pages and closed groups to honour the deceased.

DISCUSSION

This is the first study to develop a set of evidence-informed guidelines to support young people to talk safely about suicide on social media. It is hoped that they will be a useful resource for young people and those who support them (e.g., parents, teachers, community workers and health professionals).

Youth Suicide Attempt Nomenclature Used in Two Central Texas Hospitals

Abstract. Background: Surveillance systems capturing instances of self-directed violence (SDV) continue to lack uniform nomenclature and classification methodology. Aims: To apply and compare two retrospective surveillance approaches to youth experiencing SDV presenting to two urban hospitals with Level I Trauma Centers. Method: Two suicide attempt surveillance methods where retrospectively applied to our SDV cohort: (a) a rigorous method facilitated by medical record review and application of standardized classification; and (b) a common surveillance method conducted by systematic queries of suicide attempt key terms and diagnosis codes among hospital databases. Results: Rigorous surveillance identified 249 patients attempting suicide. The common method's querying suicide attempt in the chief complaint field had a high positive predictive value and specificity; however, sensitivity was low. Limitations: Authors were unable to determine whether all SDV encounters during the study timeframe were identified for initial screening owing to the hospital's lack of a uniform nomenclature or classification system. Conclusion: Results showed underreporting of suicide attempt cases, inadequate sensitivity and specificity in common surveillance methods, and skewed demographic representation compared with the rigorous surveillance method. This study elucidates the negative impact of inconsistent SDV nomenclature including impeding effective patient identification, treatment, surveillance, and generalizable research.

Blurred Boundaries – A Qualitative Study of How Acts of Self-Harm and Attempted Suicide Are Defined by Mental Health Practitioners

Abstract. Background: There is no commonly accepted definition of the term self-harm, and there is an ongoing debate about whether or not it should include acts of attempted suicide. The use of this language in clinical practice has not previously been explored. Aims: To investigate if, and how, practitioners distinguish between acts of self-harm and attempted suicide, and present any implications for practice. Method: We conducted semistructured interviews with a random sample of 18 frontline practitioners from 10 mental health wards and completed a thematic analysis of interview data. Results: Most participants described self-harm and attempted suicide as distinct behaviors. Characteristics of the act, disclosures of intent, and the level of distress observed were commonly used to differentiate between self-harm and attempted suicide. Very few participants believed that people who self-harm may also feel suicidal. Practitioners confidently described two different behaviors, yet self-harm and attempted suicide were often conflated, revealing the challenges and complexities associated with the separation of these acts in clinical practice. Limitations: Clinicians working in other settings or disciplines may have different views. Participants' accounts may not be an accurate representation of what happens in practice. Conclusion: This study adds to a body of evidence which argues against the dichotomous separation of these behaviors into acts of suicidal and nonsuicidal self-harm.Our findings suggest there is no common understanding of the boundaries between self-harm and attempted suicide among frontline clinicians. The language currently used, and consequent practice, particularly with regard to risk assessment, is problematic. Efforts should be made to operationalize terms around suicidal behavior and to incorporate these into training for clinical staff.

Detecting Suicidal Ideation on Forums: Proof-of-Concept Study

BACKGROUND

In 2016, 44,965 people in the United States died by suicide. It is common to see people with suicidal ideation seek help or leave suicide notes on social media before attempting suicide. Many prefer to express their feelings with longer passages on forums such as Reddit and blogs. Because these expressive posts follow regular language patterns, potential suicide attempts can be prevented by detecting suicidal posts as they are written.

OBJECTIVE

This study aims to build a classifier that differentiates suicidal and nonsuicidal forum posts via text mining methods applied on post titles and bodies.

METHODS

A total of 508,398 Reddit posts longer than 100 characters and posted between 2008 and 2016 on SuicideWatch, Depression, Anxiety, and ShowerThoughts subreddits were downloaded from the publicly available Reddit dataset. Of these, 10,785 posts were randomly selected and 785 were manually annotated as suicidal or nonsuicidal. Features were extracted using term frequency-inverse document frequency, linguistic inquiry and word count, and sentiment analysis on post titles and bodies. Logistic regression, random forest, and support vector machine (SVM) classification algorithms were applied on resulting corpus and prediction performance is evaluated.

RESULTS

The logistic regression and SVM classifiers correctly identified suicidality of posts with 80% to 92% accuracy and F1 score, respectively, depending on different data compositions closely followed by random forest, compared to baseline ZeroR algorithm achieving 50% accuracy and 66% F1 score.

CONCLUSIONS

This study demonstrated that it is possible to detect people with suicidal ideation on online forums with high accuracy. The logistic regression classifier in this study can potentially be embedded on blogs and forums to make the decision to offer real-time online counseling in case a suicidal post is being written.

Contemporary Nomenclatures of Suicidal Behaviors: A Systematic Literature Review

Addressing the lack of comparability of research results around the world, a systematic literature review of existing nomenclatures was conducted. After distinguishing the concepts of nomenclature and classification, 13 contributions to nomenclature of suicidal behavior are described and summarized using outcome and intent as guiding concepts for analysis. The issue of what is being defined in nomenclatures is fundamental and impacts the way intent and outcome are used. The existing confusion between classification and nomenclature stems from conflicting purposes of the nature of definition; that is, to communicate concepts versus to be descriptive of reality.

The Impact of COMT and Childhood Maltreatment on Suicidal Behaviour in Affective Disorders

The inconsistent findings on the association between COMT (catecholamine-O-methyl-transferase) and suicidal behaviour gave reason to choose a clear phenotype description of suicidal behaviour and take childhood maltreatment as environmental factor into account. The aim of this candidate-gene-association study was to eliminate heterogeneity within the sample by only recruiting affective disorder patients and find associations between COMT polymorphisms and defined suicidal phenotypes. In a sample of 258 affective disorder patients a detailed clinical assessment (e.g. CTQ, SCAN, HAMD, SBQ-R, VI-SURIAS, LPC) was performed. DNA of peripheral blood samples was genotyped using TaqMan® SNP Genotyping Assays. We observed that the haplotype GAT of rs737865, rs6269, rs4633 is significantly associated with suicide attempt (p = 0.003 [p_corr = 0.021]), and that there is a tendency towards self-harming behaviour (p = 0.02 [p_corr = 0.08]) and also NSSI (p = 0.03 [p_corr = 0.08]), though the p values did not resist multiple testing correction. The same effect we observed with the 4-marker slide window haplotype, GATA of rs737865, rs6269, rs4633, rs4680 (p = 0.009 [p_corr = 0.045]). The findings support an association between the COMT gene and suicidal behaviour phenotypes with and without childhood maltreatment as environmental factor.

Suicidal ideation while incarcerated: Prevalence and correlates in a large sample of male prisoners in Flanders, Belgium

Prisoners constitute a high-risk group for suicide. As an early stage in the pathway leading to suicide, suicidal ideation represents an important target for prevention, yet research on this topic is scarce in general prison populations. Using a cross-sectional survey design, correlates of suicidal ideation while incarcerated were examined in a sample of 1203 male prisoners, randomly selected from 15 Flemish prisons. Overall, a lifetime history of suicidal ideation and attempts was endorsed by 43.1% and 20.3% of respondents, respectively. Approximately a quarter of all prisoners (23.7%) reported past-year suicidal ideation during their current incarceration, which was significantly associated with both imported vulnerabilities (psychiatric diagnoses and a history of attempted suicide) and variables unique to the prison experience (lack of working activity, exposure to suicidal behaviour by peers, and low levels of perceived autonomy, safety and social support) in the multivariate regression analysis. A first-ever period of imprisonment and a shorter length of incarceration (≤12months) were also associated with increased odds of recent suicidal ideation. Collectively, the current findings underscore the importance of both vulnerability factors and prison-specific stressors for suicidal ideation in prisoners, and hence the need for a multi-faceted approach to suicide prevention in custodial settings. In addition to the provision of appropriate mental health care, environmental interventions that target modifiable aspects of the prison regime could provide a substantial buffer for the onset and persistence of suicidal ideation in this at-risk population.

A Social-Ecological Framework of Theory, Assessment, and Prevention of Suicide

The juxtaposition of increasing suicide rates with continued calls for suicide prevention efforts begs for new approaches. Grounded in the Centers for Disease Control and Prevention (CDC) framework for tackling health issues, this personal views work integrates relevant suicide risk/protective factor, assessment, and intervention/prevention literatures. Based on these components of suicide risk, we articulate a Social-Ecological Suicide Prevention Model (SESPM) which provides an integration of general and population-specific risk and protective factors. We also use this multi-level perspective to provide a structured approach to understanding current theories and intervention/prevention efforts concerning suicide. Following similar multi-level prevention efforts in interpersonal violence and Human Immunodeficiency Virus (HIV) domains, we offer recommendations for social-ecologically informed suicide prevention theory, training, research, assessment, and intervention programming. Although the SESPM calls for further empirical testing, it provides a suitable backdrop for tailoring of current prevention and intervention programs to population-specific needs. Moreover, the multi-level model shows promise to move suicide risk assessment forward (e.g., development of multi-level suicide risk algorithms or structured professional judgments instruments) to overcome current limitations in the field. Finally, we articulate a set of characteristics of social-ecologically based suicide prevention programs. These include the need to address risk and protective factors with the strongest degree of empirical support at each multi-level layer, incorporate a comprehensive program evaluation strategy, and use a variety of prevention techniques across levels of prevention.

Current Postvention Research and Priorities for the Future

Abstract. Background: Suicide can have a lasting impact on the social life as well as the physical and mental health of the bereaved. Targeted research is needed to better understand the nature of suicide bereavement and the effectiveness of support. Aims: To take stock of ongoing studies, and to inquire about future research priorities regarding suicide bereavement and postvention. Method: In March 2015, an online survey was widely disseminated in the suicidology community. Results: The questionnaire was accessed 77 times, and 22 records were included in the analysis. The respondents provided valuable information regarding current research projects and recommendations for the future. Limitations: Bearing in mind the modest number of replies, all from respondents in Westernized countries, it is not known how representative the findings are. Conclusion: The survey generated three strategies for future postvention research: increase intercultural collaboration, increase theory-driven research, and build bonds between research and practice. Future surveys should include experiences with obtaining research grants and ethical approval for postvention studies.