Controlling access to suicide means

Anticipating influential factors on suicide outcomes through machine learning techniques: Insights from a suicide registration program in western Iran

Suicide is a global public health concern, with increasing rates observed in various regions, including Iran. This study focuses on the province of Hamadan, Iran, where suicide rates have been on the rise. The research aims to predict factors influencing suicide outcomes by leveraging machine learning techniques on the Hamadan Suicide Registry Program data collected from 2016 to 2017. The study employs Naïve Bayes and Random Forest algorithms, comparing their performance to logistic regression. Results highlight the superiority of the Random Forest model. Based on the variable importance and multiple logistic regression analyses, the most important determinants of suicide outcomes were identified as suicide method, age, and timing of attempts, income, and motivation. The findings emphasize the cultural context's impact on suicide methods and underscore the importance of tailoring prevention programs to address specific risk factors, especially for older individuals. This study contributes valuable insights for suicide prevention efforts in the region, advocating for context-specific interventions and further research to refine predictive models and develop targeted prevention strategies.

Substitution of Methods in Suicide Deaths - Firearm Injury and Hanging

Background: Prevention strategies for suicide emphasize restrictions on firearm access. These restrictions may lose efficacy if individuals substitute other lethal suicide methods. Aims: The objective of this study is to determine the extent to which individuals who die by suicide in the United States substitute hanging for firearm injury. Methods: This study is a repeated cross-sectional analysis of suicide deaths in the United States from 2003 to 2021. Multiple regression was used to estimate the effect of firearm access proxies on individual suicide methods (hanging vs. firearm injury). Results: The probability of death by hanging was significantly and negatively associated with proxies of firearm access. Limitations: This study does not compare crude rates of suicide by state, which rise on average with rates of firearm ownership. The National Violent Death Reporting System expanded over the sample period, so early years have incomplete ascertainment. Rates of gun ownership and gun safety law scales are measured as proxies. Conclusions: Although means restriction around firearm access is a critical tool for suicide prevention, complementary strategies for prevention around hanging merit further study.

Association Between Prosuicide Website Searches Through Google and Suicide Death in the United States From 2010 to 2021: Lagged Time-Series Analysis

BACKGROUND

 The rate of suicide death has been increasing, making understanding risk factors of growing importance. While exposure to explicit suicide-related media, such as description of means in news reports or sensationalized fictional portrayal, is known to increase population suicide rates, it is not known whether prosuicide website forums, which often promote or facilitate information about fatal suicide means, are related to change in suicide deaths overall or by specific means.

OBJECTIVE

 This study aimed to estimate the association of the frequency of Google searches of known prosuicide web forums and content with death by suicide over time in the United States, by age, sex, and means of death.

METHODS

 National monthly Google search data for names of common prosuicide websites between January 2010 and December 2021 were extracted from Google Health Trends API (application programming interface). Suicide deaths were identified using the CDC (Centers for Disease Control and Prevention) National Vital Statistics System (NVSS), and 3 primary means of death were identified (poisoning, suffocation, and firearm). Distributed lag nonlinear models (DLNMs) were then used to estimate the lagged association between the number of Google searches on suicide mortality, stratified by age, sex, and means, and adjusted for month. Sensitivity analyses, including using autoregressive integrated moving average (ARIMA) modeling approaches, were also conducted.

RESULTS

 Months in the United States in which search rates for prosuicide websites increased had more documented deaths by intentional poisoning and suffocation among both adolescents and adults. For example, the risk of poisoning suicide among youth and young adults (age 10-24 years) was 1.79 (95% CI 1.06-3.03) times higher in months with 22 searches per 10 million as compared to 0 searches. The risk of poisoning suicide among adults aged 25-64 was 1.10 (95% CI 1.03-1.16) times higher 1 month after searches reached 9 per 10 million compared with 0 searches. We also observed that increased search rates were associated with fewer youth suicide deaths by firearms with a 3-month time lag for adolescents. These models were robust to sensitivity tests.

CONCLUSIONS

 Although more analysis is needed, the findings are suggestive of an association between increased prosuicide website access and increased suicide deaths, specifically deaths by poisoning and suffocation. These findings emphasize the need to further investigate sites containing potentially dangerous information and their associations with deaths by suicide, as they may affect vulnerable individuals.

Firearm Access and Suicide Rates: An Unambiguously Robust Association

Firearms account for approximately half of all suicide deaths within the United States each year. Recently, Lane and Kleck published pieces reporting conflicting results regarding the relationship between firearm access and suicide rates. In this commentary, I aim to contextualize the findings within the broader literature and to provide clarity for readers aiming to navigate the findings of the two studies. Ultimately, I conclude that the results of Lane more accurately represent the nature of the relationship and align with the extant literature on the topic.

Suicide by sodium nitrite poisoning: Findings from the National Violent Death Reporting System, 2018-2020

OBJECTIVES

Suicide by sodium nitrite may be an emerging trend in the United States. Our mixed-methods study aims to: (1) describe the rates of suicides secondary to sodium nitrite self-poisoning in the United States between 2018 and 2020 and (2) characterize the use of sodium nitrite as a suicide method.

METHODS

Using NVDRS data, descriptive statistics, population-based incident rates/year and incidence estimates across 50 states were calculated. An inductive thematic analysis characterized the use of sodium nitrite as a suicide method on review of medical examiner and law enforcement reports.

RESULTS

260 incidents were identified as suicides secondary to self-poisoning with sodium nitrite/nitrate across 37 states and 1 territory-69% of which occurred in 2020. The typical victim was a white male student with a known depressive disorder and a history of suicidal thoughts (n = 120). The annual suicide rate using sodium nitrite increased from 0.01-0.09/100,000 person-years over the three-year period. Online forums were used to share knowledge on the procurement and preparation of sodium nitrite poisoning.

CONCLUSIONS

Sodium nitrite self-poisoning is an increasingly used planned suicide method among young people. Further studies are required to identify the impact of means safety interventions on the incidence of sodium nitrite self-poisoning incidents.

Enhancing healthcare providers' diagnostic and intervention skills to deal with suicidal patients at emergency departments in the Palestinian hospitals: a quasi experimental study

BACKGROUND

Suicide cases in Palestine continue to record a remarkable annual increase, but we lack a comprehensive verified national data collection system of suicide and it is expected that real numbers of attempted/suicide in Palestine are higher because not all suicide or attempted suicide cases are reported. The purpose of this study was to test the effectiveness of a time-limited training intervention in enhancing healthcare providers' diagnostic and intervention skills to deal with suicidal patients who visit emergency departments in Palestinian hospitals.

METHODS

The sample consisted of 43 healthcare providers who work in public hospitals in the northern of the West Bank of Palestine, ranging from 25 to 56 years, involving 36 males and 7 females. A one-group quasi-experimental design was used, in which the experimental group received a training program to enhance healthcare providers' diagnostic and intervention skills to deal with suicidal ideations and attempts, the intervention lasted for 8 weeks, with 1 session per week. The performance of the experimental group was tested before and after the intervention.

RESULTS

Our findings revealed the effectiveness of the training intervention in enhancing participants' suicide assessment, diagnosis, and self-care skills.

CONCLUSIONS

These results suggest that a brief and carefully developed training intervention can potentially change healthcare providers' perceptions and behaviors toward suicide with a possible impact on clinical care therein.

Practical Capability Among Veterinarians: Preliminary Evidence of the Importance of Access to Lethal Medications in the Workplace

OBJECTIVE

Veterinarians die by suicide at elevated rates. Higher levels of capability for suicide among veterinarians, including access to lethal medications, may account for this discrepancy. This study aimed to determine the importance of accessibility of lethal medications in veterinary workplaces in the relationship between recent suicidal ideation and perceived likelihood of making a future suicide attempt.

METHOD

Participants identifying with one or more groups at high-risk for suicide (e.g., veterinarians, firearm owners) were recruited via social media to complete online self-report questionnaires examining demographic, work-related, and suicide-related risk factors. The sample of veterinarians (n = 310) was primarily female, White, and worked in small animal practices.

RESULTS

Method of lethal medication storage in the workplace moderated the relationship between past week ideation and perceived likelihood of a future suicide attempt such that the relationship became stronger among those storing medications unlocked during business hours and weaker among those storing medications locked during business hours.

CONCLUSION

Secure storage of lethal medications in the workplace may protect against suicide risk. Barriers to lethal medications, when not actively in use, may reduce both physical and cognitive accessibility. Future research should determine the impact of workplace lethal medication storage on suicidal behavior among veterinarians.HIGHLIGHTSLethal med storage moderates link between suicidal thoughts and belief suicide is likelyStoring unlocked may increase physical and cognitive accessibility of this methodWorking with vets to develop and implement means safety strategies will be important.

Firearm Safety and Suicide Prevention for Medically Complex Older Veterans: Perspectives of VA Home-Based Primary Care Directors and Psychologists

OBJECTIVES

Determine strategies and resources used by VA Home-Based Primary Care (HBPC) teams to discuss firearm safety and suicide risk with older veterans and their families or caregivers. Training and resource needs for promoting firearm safety with older veterans were also ascertained.

METHODS

Ten focus groups (N = 37) were conducted virtually in 2022 with HBPC directors and psychologists. Qualitative rapid response coding identified domains and themes within transcripts.

RESULTS

Analysis revealed three major domains: firearm safety, suicide risk, and resources/trainings. Firearm safety themes included discussions during clinical procedures, firearm-related challenges, veteran culture, and barriers and facilitators to effective conversations. Suicide risk themes included assessment procedures, frequency/types of risk conversations, factors related to suicidal ideation/behavior, challenges, and strategies to enhance communication. Resource/training themes included those currently used and perceived needs.

CONCLUSIONS

Participants described strategies for facilitating firearm safety and suicide prevention discussions with older veterans, their families, and caregivers. Using respectful language and attending to values related to firearm ownership were identified as essential.

CLINICAL IMPLICATIONS

Additional clinician/staff training/resources are needed for addressing older veteran firearm safety and suicide risk, including how to conduct more effective conversations with older veterans on these topics and better engage families/caregivers in prevention efforts.

Using iterative random forest to find geospatial environmental and Sociodemographic predictors of suicide attempts

Introduction

Despite a recent global decrease in suicide rates, death by suicide has increased in the United States. It is therefore imperative to identify the risk factors associated with suicide attempts to combat this growing epidemic. In this study, we aim to identify potential risk factors of suicide attempt using geospatial features in an Artificial intelligence framework.

Methods

We use iterative Random Forest, an explainable artificial intelligence method, to predict suicide attempts using data from the Million Veteran Program. This cohort incorporated 405,540 patients with 391,409 controls and 14,131 attempts. Our predictive model incorporates multiple climatic features at ZIP-code-level geospatial resolution. We additionally consider demographic features from the American Community Survey as well as the number of firearms and alcohol vendors per 10,000 people to assess the contributions of proximal environment, access to means, and restraint decrease to suicide attempts. In total 1,784 features were included in the predictive model.

Results

Our results show that geographic areas with higher concentrations of married males living with spouses are predictive of lower rates of suicide attempts, whereas geographic areas where males are more likely to live alone and to rent housing are predictive of higher rates of suicide attempts. We also identified climatic features that were associated with suicide attempt risk by age group. Additionally, we observed that firearms and alcohol vendors were associated with increased risk for suicide attempts irrespective of the age group examined, but that their effects were small in comparison to the top features.

Discussion

Taken together, our findings highlight the importance of social determinants and environmental factors in understanding suicide risk among veterans.

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

Objective

The authors sought to identify scalable evidence-based suicide prevention strategies.

Methods

A search of PubMed and Google Scholar identi- fied 20,234 articles published between September 2005 and December 2019, of which 97 were randomized controlled trials with suicidal behavior or ideation as primary outcomes or epidemiological studies of limiting access to lethal means, using educational approaches, and the impact of antidepressant treatment.

Results

Training primary care physicians in depression rec- ognition and treatment prevents suicide. Educating youths on depression and suicidal behavior, as well as active out- reach to psychiatric patients after discharge or a suicidal crisis, prevents suicidal behavior. Meta-analyses find that antidepressants prevent suicide attempts, but individual randomized controlled trials appear to be underpowered. Ketamine reduces suicidal ideation in hours but is untested for suicidal behavior prevention. Cognitive-behavioral therapy and dialectical behavior therapy prevent suicidal behavior. Active screening for suicidal ideation or behavior is not proven to be better than just screening for depression. Education of gatekeepers about youth suicidal behavior lacks effectiveness. No randomized trials have been reported for gatekeeper training for prevention of adult suicidal behavior. Algorithm-driven electronic health record screening, Internet-based screening, and smartphone passive monitoring to identify high-risk patients are under-studied. Means restriction, including of firearms, prevents suicide but is sporadically employed in the United States, even though firearms are used in half of all U.S. suicides.

Conclusions

Training general practitioners warrants wider implementation and testing in other nonpsychiatrist physi- cian settings. Active follow-up of patients after discharge or a suicide-related crisis should be routine, and restricting firearm access by at-risk individuals warrants wider use. Combination approaches in health care systems show promise in reducing suicide in several countries, but evaluating the benefit attributable to each component is essential. Further suicide rate reduction requires evaluating newer approaches, such as electronic health record-derived algorithms, Internet-based screening methods, ketamine's potential benefit for preventing attempts, and passive monitoring of acute suicide risk change.Reprinted from Am J Psychiatry 2021; 178:611-624, with permission from American Psychiatric Association Publishing. Copyright © 2021.

Engaging stakeholders to develop a suicide prevention learning module for Louisiana firearm training courses

BACKGROUND

Firearm suicide is a significant public health problem in the United States of America among the general and veteran populations. Broad-based preventive strategies, including lethal means safety, have been emphasized as a key approach to suicide prevention. Prior research has identified ways to improve the reach and uptake of lethal means safety messages. However, few resources have been created with these lessons in mind.

METHODS

Louisiana firearm owners and instructors were recruited through a larger project, Veteran-Informed Safety Intervention and Outreach Network, as well as a publicly available database of firearm instructors to participate in focus groups to provide feedback on an existing suicide prevention learning module (developed in Utah) for use by firearm instructors. Their feedback was used to adapt the module, which included a brief video and PowerPoint presentation. Firearm owners and instructors were then invited back for another round of focus groups to provide feedback on this adapted learning module. Team-based rapid qualitative analysis was conducted to identify themes across transcripts from these four focus groups.

RESULTS

Firearm owners and instructors agreed on several key themes, including the importance of messenger relatability and aligning the lethal means safety message with firearm owner values. Feedback suggested these themes were adequately addressed in the adapted learning module and contributed to overall module acceptability. The final theme, present across the original and adapted learning modules (i.e., Utah and Louisiana), was openness to further information and training on firearm suicide prevention.

CONCLUSION

Consistent with a public health approach to suicide prevention, the current study used stakeholder engagement to develop a suicide prevention learning module perceived as representative, accurate, and acceptable to Louisiana firearm owners and instructors. These findings can be used to inform firearm suicide prevention efforts in other states.

Sex Differences in Health Conditions Associated with Sexual Assault in a Large Hospital Population

Introduction

Sexual assault is an urgent public health concern with both immediate and long-lasting health consequences, affecting 44% of women and 25% of men during their lifetimes. Large studies are needed to understand the unique healthcare needs of this patient population.

Methods

We mined clinical notes to identify patients with a history of sexual assault in the electronic health record (EHR) at Vanderbilt University Medical Center (VUMC), a large university hospital in the Southeastern USA, from 1989 to 2021 (N = 3,376,424). Using a phenome-wide case-control study, we identified diagnoses co-occurring with disclosures of sexual assault. We performed interaction tests to examine whether sex modified any of these associations. Association analyses were restricted to a subset of patients receiving regular care at VUMC (N = 833,185).

Results

The phenotyping approach identified 14,496 individuals (0.43%) across the VUMC-EHR with documentation of sexual assault and achieved a positive predictive value of 93.0% (95% confidence interval = 85.6-97.0%), determined by manual patient chart review. Out of 1,703 clinical diagnoses tested across all subgroup analyses, 465 were associated with sexual assault. Sex-by-trauma interaction analysis revealed 55 sex-differential associations and demonstrated increased odds of psychiatric diagnoses in male survivors.

Discussion

This case-control study identified associations between disclosures of sexual assault and hundreds of health conditions, many of which demonstrated sex-differential effects. The findings of this study suggest that patients who have experienced sexual assault are at risk for developing wide-ranging medical and psychiatric comorbidities and that male survivors may be particularly vulnerable to developing mental illness.

Assessing Female Suicide From a Health Equity Viewpoint, U.S. 2004-2018

INTRODUCTION

Geographic and urbanization differences in female suicide trends across the U.S. necessitates suicide prevention efforts on the basis of geographic variations. The purpose of this study was to assess female suicide rates by mechanism within Census divisions and by urbanicity to help inform geographically tailored approaches for suicide prevention strategies.

METHODS

Data from 2004 to 2018 were obtained from the National Vital Statistics System (analyzed in 2021). Annual counts of female suicides were tabulated for firearm, suffocation, and drug poisoning and stratified by the U.S. Census division and urbanicity. Age-adjusted rates were calculated to describe female suicide incidence by geographic areas and urbanicity. Data were analyzed annually and by 5-year timeframes. Trends in annual female suicide rates by mechanism for 3 urbanization levels were identified using Joinpoint Regression. Annual percent change estimates were calculated for age-adjusted female suicide rates between 2004 and 2018.

RESULTS

Female suicide rates by mechanism were not homogeneous within Census divisions or by urbanization levels. Suicide rates by mechanism across Census divisions within the same urbanization level varied (range=3.38-11.15 [per 100,000 person per year]). From 2014 to 2018 in large metropolitan areas in the northern divisions, rates for suffocation were higher than for firearms and drug poisoning. During the same period, in all urbanization levels in southern divisions, rates for firearms were higher than for suffocation and drug poisoning.

CONCLUSIONS

Female suicide mechanisms vary by urbanization level, and this variation differs by region. These results could inform female suicide prevention strategies on the basis of mechanism, urbanization, and geographic region.

Comparing characteristics of suicide to non-suicide drug poisoning deaths, by sex, in Ireland

BACKGROUND

Suicide by drug poisoning is potentially preventable; however, evidence on associated risk factors by sex is limited.

AIM

To assist in understanding how individual and social contextual factors, and specific drugs, influence risk of suicide compared to non-suicide drug poisoning deaths, and how this differs by sex.

METHODS

Data were extracted from the National Drug-Related Deaths Index. Analysis included univariable and multivariable logistic regression to estimate unadjusted and adjusted odds ratios (OR) and 95% confidence intervals (CI) for factors associated with suicide drug poisoning deaths (SDPD) (primary outcome) compared with non-suicide drug poisoning deaths (NSDPD) and stratified by sex.

RESULTS

SDPD accounted for 240 (22%) of 1114 poisoning deaths, the majority among men (n = 147, 61%). Increasing age, mental ill health (AOR 7.85, 95% CI: 5.46-11.28), chronic pain (AOR 5.57, 95% CI: 3.28-9.46), and history of previous overdose (AOR 5.06, 95% CI: 3.39-7.56) were associated with increased odds of SDPD, with similar results for both sexes. The main drugs associated with SDPD were non-opioid analgesics (OR 4.06 [95% CI 2.66-6.18]), antipsychotics (OR 2.42 [95% CI 1.63-3.60]) and antidepressants (OR 2.18 [95% CI 1.59-2.97]). Pregabalin was associated with SDPD among women only.

LIMITATIONS

Secondary analysis of coronial data on drug poisoning deaths therefore findings may not be relevant to suicide deaths in general.

CONCLUSIONS

Ongoing monitoring for signs of suicidal intent in individuals with mental illness, chronic pain, overdose, and/or prescribed mental health medications may identify individuals in need of additional intervention.

Motivating Behavior Change in Parents for Suicide Prevention in the Midwest, USA

Safe storage of lethal means is an evidence-based approach to suicide prevention that is underutilized. This naturalistic study investigated whether a presentation on parenting teenagers that includes education about safe storage of firearms and medications, paired with tools to enact change, can impact storage practices. Ten community presentations for parents were given between November 2018 and September 2019 in the Midwest region of the United States. Multiple topics pertinent to parenting adolescents were included with an emphasis on safe storage of firearms and medications to reduce suicide risk. Toolkits including medication storage boxes and cable gun locks were offered to help parents enact recommended changes. Surveys were completed prior to the presentation (T1), immediately following the presentation (T2), and 2 weeks after the presentation (T3). Five-hundred eighty-one parents comprised the initial study sample, of whom 410 (70.6%) completed the primary study endpoint. Generalized linear mixed models with and without worst-case imputation were used to evaluate changes in safe storage practices. Results suggested the odds of storing firearms in the safest manner possible increased 5.9 times (95% CI 2.6-13.5, p < 0.001) without imputation and increased 2.0 times (95% CI 1.1-3.4, p = 0.02) with the worst-case imputation. Among participants with unlocked medications at baseline, 56.5% reported they had disposed of old medications and 53.0% reported locking up bottles of medication by the primary study endpoint. This study provides preliminary evidence that safe storage education paired with tools for behavior change motivates parents to enact safe storage measures.

Public Perception of Gun Violence-related Headline Accuracy and the Credibility of Media Sources

The present study sought to determine the extent to which the message or messenger is more important for news media portrayal of gun violence prevention. Exploratory analyses also examined factors related to Fox News and MSNBC credibility. Participants (N = 3,500) were US adults matched to the 2010 US Census on several demographic variables. Two mock headlines were presented: "Gun violence is result of mental health problems" and "Storing firearms in a safe can help prevent suicides." Headlines were reported to be from either Fox News or MSNBC. Participants then rated accuracy of the headline and credibility of the news source. Headline content did not predict perceived accuracy of the headline. Perceived credibility of the messenger was associated with perceived accuracy for both mock headlines. Exploratory analyses indicated several demographic factors related to Fox News and MSNBC credibility. Regardless of the content of a headline, the degree to which participants perceived it as accurate was associated with how credible they believed the source to be. These findings highlight the importance of credible media portrayal of accurate information on gun violence prevention.

Dying in a foreign land: A study of completed suicides among foreign workers in Singapore

Suicide is a public health issue that impacts a nation's resident and non-resident populations alike. Singapore has one of the largest non-resident (work permit holder) populations in the world, yet very little attention has been given to examining suicide in this population. The current study examined the case materials of all 303 non-resident completed suicides in Singapore in the period January 2011 to December 2014. Their basic profiles were compared with that of the 1,507 resident cases in the same period. A sample of 30 death notes written by non-residents were randomly selected and thematically analyzed to supplement the descriptive findings and discussion. Results showed that suicides were highest among males, those aged 21-35 years old, and South Asians. Most non-resident suicide cases did not have known physical or mental health issues, prior suicide attempts, or suicide notes. Suicide decedents from South Asia and Europe most frequently used hanging, while jumping was most common among decedents from other regions. Relationship and health problems emerged as the top two suspected triggers for suicide based on our analysis of the suicide notes. The unique situation of working abroad may increase non-residents' vulnerability in general, while adverse life events such as relationship and health issues may be too overwhelming to bear, especially when support services are not readily available and accessible. The results have implications for suicide prevention among this neglected group of people who choose to work in foreign lands.

Revisiting evidence of primary prevention of suicide among adult populations: A systematic overview

BACKGROUNDS

Primary prevention of suicidal behaviors in the general population is required to interrupt the trend of self-inflicted deaths worldwide. We reviewed the evidence of the efficacy of primary prevention of suicide among the adult population.

METHODS

This is an overview of systematic reviews. We searched PubMed, EMBASE, Scopus, PsycINFO, and Cochrane databases to identify articles on suicide prevention strategies in non-clinical populations. For the purpose of overview, only systematic reviews were eligible. Primary outcomes: The outcomes of the present study were changes in the number of suicide death or suicide behaviors. Two reviewers assessed the methodological quality and the risk of bias of included studies.

RESULTS

From the initial 2,315 records, 32 articles met inclusion criteria. Evidence of reduction of suicide-related outcomes was detected, but of small magnitude. Most multicomponent prevention programs were delivered to specific populations, comprising strategies such as restriction to lethal means, educational programs, and gatekeeper training. Means restriction was the single intervention that showed some evidence of individual efficacy in reducing suicide. There is evidence that poor quality of media reporting is related with increasing suicide and better-quality reports could help suicide prevention. Most of the included SRs were of critically-low methodological quality.

LIMITATIONS

Publication bias, reporting bias, study designs, outcome definition and article overlap across studies are the main concerns.

CONCLUSIONS

Multicomponent programs and means restriction have indicated a reduction of suicide rates, mainly in specific populations. There is insufficient evidence to recommend a widespread implementation of suicide primary prevention in the general population.

Physician-Assisted Suicide in Dementia: Paradoxes, Pitfalls and the Need for Prudence

There has been an increasing drive towards the legalization of physician-assisted suicide (PAS) in patients with dementia, particularly in patients with advanced disease and severe cognitive impairment. Advocacy for this position is often based on utilitarian philosophical principles, on appeals to the quality of life of the patient and their caregiver(s), or on economic constraints faced by caregivers as well as healthcare systems. In this paper, two lines of evidence against this position are presented. First, data on attitudes towards euthanasia for twenty-eight countries, obtained from the World Values Survey, is analyzed. An examination of this data shows that, paradoxically, positive attitudes towards this procedure are found in more economically advanced countries, and are strongly associated with specific cultural factors. Second, the literature on existing attitudes towards PAS in cases of dementia, along with ethical arguments for and against the practice, is reviewed and specific hazards for patients, caregivers and healthcare professionals are identified. On the basis of these findings, the author suggests that the practice of PAS in dementia is not one that can be widely or safely endorsed, on both cultural and ethical grounds. Instead, the medical field should work in collaboration with governmental, social welfare and patient advocacy services to ensure optimal physical, emotional and financial support to this group of patients and their caregivers.

[Suicides Among Adolescents in a Major German City]

Suicides Among Adolescents in a Major German City Abstract. Objective: Adolescent suicide is a major contributor to the overall mortality in this age group. This study examined sex and age differences in suicide methods. Method: The investigation is based on death certificates from the years 1996 to 2019 of the city of Leipzig and includes all suicides in the age group under 25 years. The impact of sex and age on the method and location of suicide was examined using chi square statistics. Moreover, we verified the association between suicides and death by drug overdose through statistical regression. Results: 140 suicides were included in the study. The suicide methods differed between the age groups (χ^² = 17,878; p = .022). Individuals under 21 years of age committed suicide almost exclusively by strangulation, jumping from heights, railway suicide, or deliberate intoxication. With the onset of early adulthood, the spectrum of methods expanded. Suicide methods were also different between the sexes (χ^² = 35,166; p < .001): Male adolescents preferred highly lethal methods such as strangulation, whereas in female adolescents intoxication was the leading method of suicide, with a predominance of antidepressants. The annual rates of suicide and death by drug overdose were found to correlate (Pearson correlation = 0,571, p = .004). Minors (χ² = 3.125, p = .077) tended to avoid their own residential environment as a place of suicides compared to adults. Conclusion: When assessing the individual suicide risk and weighing safeguarding measures in clinical practice, the differences shown in the choice of methods should be taken into account.

Suicide methods in South Asia over two decades (2001-2020)

BACKGROUND

Suicide is a global preventable public health problem. About a quarter of all suicides in the world occur in South Asia. As means restriction is an important suicide prevention strategy, gaining knowledge of the common suicide methods and their changing trends in each country and region is crucial.

AIMS

We aimed to assess the suicide methods in South Asian countries over the last two decades.

METHODS

A search was performed in PubMed, PubMed Central, Scopus, and Google Scholar with the search terms. Original articles of quantitative studies, published in the English language, from 2001 to 2020, with full-accessible text, that rank different methods of suicide in eight South Asian countries, were included.

RESULTS

A total of 68 studies were found eligible for review. The Maximum number of studies were found from India (n = 38), followed by Bangladesh (n = 12), Pakistan (n = 9), Sri Lanka (n = 6), and Nepal (n = 3). Hanging (n = 40, 55.8%) and poisoning (n = 24, 35.3%) were the two most common suicide methods reported, in that order. Hanging followed by poisoning were the commonest suicide methods in Bangladesh, India, and Pakistan while in Sri Lanka, poisoning was the preferred method to hanging. There is a decline in suicide by poisoning and an increase in suicide by hanging in Sri Lanka, Bangladesh, and India. Although hanging is still the commonest method in Pakistan, the use of firearms is growing in recent years (2011-2020).

CONCLUSIONS

There is a steady decline in the incidence of suicides by poisoning following pesticide regulations in South Asian countries. However, there is heterogeneity of study methods, probable under-reporting of suicide, and lack of robust suicide data.

Association Between Means Restriction of Poison and Method-Specific Suicide Rates

Question

Findings

Meaning

Importance

Objective

Evidence Review

Findings

Conclusions and Relevance

Evaluation of factors related to overdose in patients with impaired consciousness who are transported by emergency medical services: an age-specific research

Background

Drug overdose accounts for most of the admissions to the emergency department. Prescription drugs, most of which are psychotropic medications, are often misused for drug overdose. The purpose of this study was to investigate the association between overdose in patients transported with disorders of consciousness and psychotropic medications administered prior to transport, so as to enable quick differentiation of drug overdose patients from patients with disorders of consciousness.

Methods

We evaluated 222 patients transported to the Advanced Critical Care Center of Teikyo University Hospital due to disorders of consciousness. The patients were categorized into two groups: overdose group (n = 128) and control group with other disorders of consciousness (n = 94). Logistic regression models were used to assess the association between disorders of consciousness due to drug overdose and psychotropic drugs prescribed before emergency transportation based on sex and age.

Results

According to multivariate logistic regression analysis, only female sex (odds ratio [OR] 4.54, 95% confidence interval [CI] 2.43–8.05, P < 0.0001) was associated with overall overdose. Results from the univariate logistic regression analysis showed that in the group of patients aged 40–50 years, female sex (OR 4.36, 95% CI; 1.54–12.4, P = 0.006) and the use of psychotropic drugs (OR 5.05, 95% CI; 1.75–14.6, P = 0.003), benzodiazepines (OR 4.64, 95% CI; 1.61–13.4, P < 0.05), antidepressants (OR 11.4, 95% CI; 2.35–55.8, P = 0.003), and anticonvulsants (OR 4.46, 95% CI; 1.11–17.9, P = 0.035) were associated with overdose. According to multivariate logistic regression analysis, female sex (OR 4.44, 95% CI; 1.37–14.3, P = 0.013) and antidepressants (OR 7.95, 95% CI; 1.21–52.1, P = 0.031) were associated with overdose patients aged 40–50 years.

Conclusions

As a reference in distinguishing overdose in women in their 40s and 50s who present with impaired consciousness, attention may need to be paid to the type of psychotropic drug used, especially antidepressants.

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

OBJECTIVE

The authors sought to identify scalable evidence-based suicide prevention strategies.

METHODS

A search of PubMed and Google Scholar identified 20,234 articles published between September 2005 and December 2019, of which 97 were randomized controlled trials with suicidal behavior or ideation as primary outcomes or epidemiological studies of limiting access to lethal means, using educational approaches, and the impact of antidepressant treatment.

RESULTS

Training primary care physicians in depression recognition and treatment prevents suicide. Educating youths on depression and suicidal behavior, as well as active outreach to psychiatric patients after discharge or a suicidal crisis, prevents suicidal behavior. Meta-analyses find that antidepressants prevent suicide attempts, but individual randomized controlled trials appear to be underpowered. Ketamine reduces suicidal ideation in hours but is untested for suicidal behavior prevention. Cognitive-behavioral therapy and dialectical behavior therapy prevent suicidal behavior. Active screening for suicidal ideation or behavior is not proven to be better than just screening for depression. Education of gatekeepers about youth suicidal behavior lacks effectiveness. No randomized trials have been reported for gatekeeper training for prevention of adult suicidal behavior. Algorithm-driven electronic health record screening, Internet-based screening, and smartphone passive monitoring to identify high-risk patients are understudied. Means restriction, including of firearms, prevents suicide but is sporadically employed in the United States, even though firearms are used in half of all U.S. suicides.

CONCLUSIONS

Training general practitioners warrants wider implementation and testing in other nonpsychiatrist physician settings. Active follow-up of patients after discharge or a suicide-related crisis should be routine, and restricting firearm access by at-risk individuals warrants wider use. Combination approaches in health care systems show promise in reducing suicide in several countries, but evaluating the benefit attributable to each component is essential. Further suicide rate reduction requires evaluating newer approaches, such as electronic health record-derived algorithms, Internet-based screening methods, ketamine's potential benefit for preventing attempts, and passive monitoring of acute suicide risk change.

The impact of guidance on the supply of codeine-containing products on their use in intentional drug overdose

Background

Concerns about the misuse of codeine led to the introduction of guidance restricting the supply of over-the-counter (OTC) codeine-containing products in Ireland in 2010. The aim of this study was to examine the impact of this guidance on the national rate of hospital-presenting self-harm involving codeine-related intentional drug overdose (IDO).

Methods

Presentations involving IDO to Irish general hospitals between 1 January 2007 and 31 December 2013, as recorded by the National Self-Harm Registry Ireland, were analyzed. Event-based rates per 100 000 were calculated using national population data. Poisson regression models were used to assess rate changes between pre- and post-guidance periods and to calculate excess presentations.

Results

Between January 2007 and December 2013, a total of 57 759 IDOs were recorded, with 4789 (8.3%) involving a codeine-containing product. The rate of codeine-related IDOs was 20% lower in the period following implementation of the guidance (incidence rate ratio: 0.80; 95% CI: 0.75 to 0.85), representing a total of 509 (95% CI: −624, −387) fewer codeine-related IDOs in that period. Reductions were observed across all ages and were more pronounced for females (0.76, 0.71 to 0.82) than males (0.87, 0.79 to 0.97). The rate of IDOs involving other drugs decreased by 3% in the same period (0.97, 0.95 to 0.98).

Conclusion

Our findings indicate that the rate of codeine-related IDOs was significantly lower in the period following the implementation of the guidance. There is a large body of evidence supporting the restriction of potentially harmful medication as an effective strategy in suicide prevention.

Paracetamol-related intentional drug overdose among young people: a national registry study of characteristics, incidence and trends, 2007-2018

PURPOSE

Incidence rates of hospital-presenting self-harm are highest in people under 25 years and are reportedly increasing in some countries. Intentional drug overdose (IDO) is the most common self-harm method among young people, with paracetamol the drug most frequently used. This study aimed to describe the characteristics, incidence, and temporal trends in paracetamol-related IDO among young people.

METHODS

Data from the National Self-Harm Registry Ireland on hospital-presenting self-harm by individuals aged 1024 years during 2007-2018 were examined. Annual IDO rates per 100,000 were calculated by age and gender. Joinpoint regression analyses and incidence rate ratios were used to examine trends in the incidence of paracetamol-related IDO.

RESULTS

During the study, 10,985 paracetamol-related IDOs were recorded. The incidence of paracetamol-related IDO among young people increased by 9% between 2007 and 2018 (IRR 1.09 95% CI 1.00-1.19), with the highest annual percentage change (APC) in females aged 18-24 years (APC 1.2%). Conversely, rates of paracetamol-related IDO among males aged 18-24 years decreased significantly (APC 1.6%). Between 2013 and 2018, excesses of 386 and 151 paracetamol-related IDOs were observed in females aged 10-17 and 18-24 years, respectively, and 42 excess presentations were observed for males aged 10-17 years. There were 107 fewer presentations than expected for males aged 18-24 years.

CONCLUSION

The increase in paracetamol-related IDO among specific groups of young people, particularly young females is an issue of growing concern. Interventions targeting IDO among young people are needed, incorporating measures to address the availability of paracetamol and aftercare following IDO.

Characteristics of depressed suicide attempters with remitted substance use disorders

Substance use disorder (SUD) comorbidity in mood disorders increases suicide risk. Suicide attempters with active SUD appear to have distinct characteristics but little is known whether these characteristics persist during remission and if they are related to different aspects of suicidal behavior. In this study, suicide attempters with a DSM mood disorder and remitted SUD (AT+SUD) (N = 135) were compared to those without lifetime SUD (AT-SUD) (N = 219) in terms of demographic, clinical and suicidal behavioral characteristics. Factor analyses were conducted to generate subjective distress and impulsivity/aggression factors - previously identified by our group to predict suicide risk in mood disorders. Associations between these traits and SUD history and suicidal behavior characteristics were then tested. Compared with AT-SUD, AT+SUD were more likely to be male, less educated and to have a Cluster B personality disorder. AT+SUD individuals had greater impulsivity/aggression factor scores, but comparable subjective distress scores. AT+SUD made a greater number of suicide attempts, with higher lethality, despite comparable suicide intent and degree of planning with AT-SUD. Impulsivity/aggression was higher in multiple versus single attempters, but did not correlate with suicide attempt lethality. Among suicide attempters with mood disorders, a history of lifetime SUD was associated with more frequent and more lethal suicide attempts. Among other correlates of lifetime SUD in this sample, impulsive/aggressive traits may explain greater frequency of suicide attempts. The results underscore that persons with mood disorders and lifetime SUD are at particularly high risk of frequent and lethal suicide attempts where more intensive prevention efforts are warranted.

An examination of preferred messengers on firearm safety for suicide prevention

This study sought to determine differences in preferred messengers on the topic of safe firearm storage and suicide prevention between firearm owners and non-firearm owners, and among firearm owners of different racial groups and sexes. Participants were 6200 United States residents recruited via Qualtrics Panels to complete an online survey. Data were collected during March 2020. The total sample and all subsamples ranked law enforcement, current military personnel, and military veterans as the top three most credible sources to discuss firearm safety for suicide prevention. Significant differences existed among the mean ranking of sources between firearm owners and non-firearm owners as well as between several subgroups of firearm owners. The identical ranking of the top three sources indicates that these groups agree on the relative credibility of multiple sources, although the average level of credibility for particular sources may vary. These findings highlight that the effectiveness of messaging on safe firearm storage may hinge on the identity of the individual delivering the message and provide an initial roadmap for how to consider packaging specific messages.

Exploring the scope and structure of suicide capability

OBJECTIVE

Recent theories of suicide suggest that a construct called "capability for suicide" facilitates the progression from suicidal thoughts to attempts. Various measures of capability have been developed to assess different parts of the construct, but studies report inconsistent findings regarding reliability, validity, and structure. The present study pooled items from multiple measures to identify distinct, reliable, and valid domains of suicide capability.

METHOD

We administered items from several suicide capability measures to an online sample of US adults (n = 387), and utilized exploratory factor analysis to identify distinct domains of capability. We then examined the internal consistencies of and intercorrelations among these domains, as well as their associations with suicide attempts.

RESULTS

Findings identified three domains of suicide capability: fearlessness about death, practical capability, and pain tolerance. These domains were internally consistent (αs = 0.80-0.92), and relatively independent from one another (intercorrelations = 0.15-0.35). Finally, each of these domains was moderately elevated among attempters compared to ideators (although only fearlessness about death and practical capability offered unique information about attempter status).

CONCLUSIONS

Findings suggest that fearlessness about death, practical capability, and pain tolerance can be measured reliably, and may be relevant for understanding which ideators make attempts.

The mental and physical health profile of people who died by suicide: findings from the Suicide Support and Information System

PURPOSE

There is limited research on the associations between factors relating to mental and physical health in people who died by suicide.

METHODS

Consecutive suicide cases were included in a psychological autopsy study as part of the Suicide Support and Information System in southern Ireland. Chi-square tests and logistic regression analysis were used to examine factors associated with recorded presence or absence of mental and physical health problems.

RESULTS

The total sample comprised 307 suicide cases, the majority being male (80.1%). Sixty-five percent had a history of self-harm and 34.6% of these cases had not been seen or treated following previous self-harm, although most (80.3%) had a history of recent GP attendance. Mental health diagnoses were present in 84.8% of cases where this variable was documented, and among these, 60.7% had a history of substance misuse and 30.6% had physical health problems. Variables associated with mental illness included gender, older age, previous self-harm episode(s), and presence of drugs in toxicology at time of death. Variables associated with physical illness included older age, death by means other than hanging, and previous self-harm episode(s).

CONCLUSIONS

Different factors associated with suicide were identified among people with mental and physical illness and those with and without a diagnosis, and need to be taken into account in suicide prevention. The identified factors highlight the importance of integrated care for dual-diagnosis presentations, restricting access to means, and early recognition and intervention for people with high-risk self-harm.

Adaptation of evidence-based suicide prevention strategies during and after the COVID-19 pandemic

Suicide is preventable. Nevertheless, each year 800,000 people die of suicide in the world. While there is evidence indicating that suicide rates de-crease during times of crises, they are expected to increase once the immediate crisis has passed. The COVID-19 pandemic affects risk and pro-tective factors for suicide at each level of the socio-ecological model. Economic downturn, augmented barriers to accessing health care, increased access to suicidal means, inappropriate media reporting at the societal level; deprioritization of mental health and preventive activities at the community level; interpersonal conflicts, neglect and violence at the relationship level; unemployment, poverty, loneliness and hopelessness at the individual level: all these variables contribute to an increase of depression, anxiety, post-traumatic stress disorder, harmful use of alcohol, substance abuse, and ultimately suicide risk. Suicide should be prevented by strengthening universal strategies directed to the entire population, including mitigation of unemployment, poverty and inequalities; prioritization of access to mental health care; responsible media reporting, with information about available support; prevention of increased alcohol intake; and restriction of access to lethal means of suicide. Selective interventions should continue to target known vulnerable groups who are socio-economically disadvantaged, but also new ones such as first responders and health care staff, and the bereaved by COVID-19 who have been deprived of the final contact with loved ones and funerals. Indicated preventive strategies targeting individuals who display suicidal behaviour should focus on available pharmacological and psychological treatments of mental disorders, ensuring proper follow-up and chain of care by increased use of telemedicine and other digital means. The scientific community, health care professionals, politicians and decision-makers will find in this paper a systematic description of the effects of the pandemic on suicide risk at the society, community, family and individual levels, and an overview of how evidence-based suicide preventive interventions should be adapted. Research is needed to investigate which adaptations are effective and in which con-texts.

Mental health management of elite athletes during COVID-19: a narrative review and recommendations

Elite athletes suffer many mental health symptoms and disorders at rates equivalent to or exceeding those of the general population. COVID-19 has created new strains on elite athletes, thus potentially increasing their vulnerability to mental health symptoms. This manuscript serves as a narrative review of the impact of the pandemic on management of those symptoms in elite athletes and ensuing recommendations to guide that management. It specifically addresses psychotherapy, pharmacotherapy and higher levels of care. Within the realm of psychotherapy, crisis counselling might be indicated. Individual, couple/family and group psychotherapy modalities all may be helpful during the pandemic, with novel content and means of delivery. Regarding pharmacotherapy for mental health symptoms and disorders, some important aspects of management have changed during the pandemic, particularly for certain classes of medication including stimulants, medications for bipolar and psychotic disorders, antidepressants and medications for substance use disorders. Providers must consider when in-person management (eg, for physical examination, laboratory testing) or higher levels of care (eg, for crisis stabilisation) is necessary, despite potential risk of viral exposure during the pandemic. Management ultimately should continue to follow general principles of quality health care with some flexibility. Finally, the current pandemic provides an important opportunity for research on new methods of providing mental health care for athletes, and consideration for whether these new methods should extend beyond the pandemic.

Suicide risk and firearm ownership and storage behavior in a large military sample

Firearms account for the majority of suicide deaths in the United States military and access to firearms is a risk factor for suicide. Prior research has shown service members tend to store firearms unsafely, with some research indicating this is particularly true among those with elevated suicide risk. Existing research has focused on individuals at known risk for suicide; however, those who die by suicide using a firearm are prone to avoiding mental healthcare and underreporting suicidal ideation, thereby necessitating an understanding of this phenomenon among firearm owners outside of the mental healthcare system. The present study examined firearm storage and suicide risk in a large nonclinical sample of service members (total sample n = 953; firearm owning sample = 473). Lifetime suicidal ideation, current depressive symptoms, and perceived likelihood of making a future suicide attempt were associated with unsafe firearm storage. In contrast, lifetime suicidal ideation was not associated with a greater likelihood to own firearms. These findings suggest those at risk of suicide are more likely to store firearms unsafely, which increases ease of access to firearms. These findings reiterate the importance of means safety as a suicide prevention strategy.

Impact of Mental Health Treatment on Suicide Attempts

This paper analyzes the impact of mental health treatment on suicide attempts. While prior work demonstrates the effectiveness of mental health treatment at reducing suicide risk, few studies examine nationally representative populations or use broad measures of access to mental health services. A methodological problem can arise in studies of mental health treatment and suicidal behavior because a suicide attempt can result in the use of more mental health services. Using nationally representative survey data combined with national estimates of provider availability, this paper employs a methodological correction to address that potential problem of reverse causation. This paper uses measures of the density of health care providers in an area as statistical instruments for use of mental health treatment in an analysis of the impact of mental health treatment on suicide attempts. This study finds that mental health treatment significantly reduces suicide attempts.

Suicide among university students: prevalence, risks and protective factors

Background: Research evidence on suicide in Ghana so far has focused mostly on suicide in the adult population and less work on the younger population such as university students and other vulnerable groups such as children, youth and the aged. Aims: This study was conducted to determine lifetime and current prevalence of suicidal ideation or attempts and identify the associated risks and protective factors among university students in Ghana. Methods: Using a cross-sectional design, 1003 university students (507 males and 496 females) with a mean age of 20.5 years (SD = 5.95) were administered questionnaires that measured suicide, psychological distress, self-esteem and subjective wellbeing. Results: We found the following prevalence rates of suicidal behaviours: ideations 15.2%, attempted 6.3%, death wishes 24.3% and suicidal plan 6.8%. Psychological distress was a risk factor for both suicidal ideation and suicidal attempt. Subjective wellbeing was protective of suicide attempt while self-esteem was protective of suicidal ideation. Conclusions: These findings underscore the need for school-based mental health-promoting programmes that enhance young people's self-esteem, reduce psychological distress and boost subjective wellbeing.

Sex Differences in Pediatric Poisonings by Age Group: a Toxicology Investigators' Consortium (ToxIC) Analysis (2010-2016)

OBJECTIVE

To review pediatric poisonings evaluated at the bedside by medical toxicologists and reported in the ToxIC registry, by sex and age group.

METHODS

Pediatric poisoning cases age ≤18 years, reported between January 2010 and December 2016, were reviewed. Descriptive statistics were used to describe study variables by age group and sex.

RESULTS

A total of 12,699 cases were analyzed. There were 7517 females and 5182 males. Those < 2 years old represented 12.5% of the study group (n = 1584), 17.2% were 2-6 years old (n = 2178), 8.6% were 7-12 years old (n = 1097), and 61.7% were 13-18 years old (n = 7840). The most common primary reasons for encounter were intentional pharmaceutical with 4900 females and 1836 males; intentional non-pharmaceutical with 952 females and 1213 males; unintentional pharmaceutical with 539 females and 644 males; and unintentional non-pharmaceutical with 435 females and 593 males. Overall, pharmaceuticals were the most commonly involved agents, including analgesics (20.9% of cases) and antidepressants (11% of cases): 27.8% of females and 10.7% of males were reportedly exposed to an analgesic.13.7% of females and 7.0% of males were reportedly exposed to an antidepressant. Among 1584 cases under 2 years, there were 747 females and 837 males; among 2178 cases aged 2-6 years, there were 954 females and 1224 males; among 1097 cases aged 7-12 years, there were 555 females and 542 males; and among 7840 cases aged 13-18 years, there were 5261 females and 2579 males. Death was reported in 0.7% of the cases: 20 females and 18 males. 6.1% of cases were managed with intubation: 421 females and 351 males.

CONCLUSIONS

Sex-based characteristics of poisonings varied by age group among pediatric poisoning presentations reported to the ToxIC registry and further research is needed to determine implications for education and prevention efforts.

The Role of Reason for Firearm Ownership in Beliefs about Firearms and Suicide, Openness to Means Safety, and Current Firearm Storage

OBJECTIVE

Firearm means safety strategies, such as safe storage, are effective in reducing suicide rates but are not widely implemented in the United States. This study examined the association between reason for firearm ownership, beliefs about firearm ownership and storage and suicide risk, willingness to engage in means safety, and current firearm storage practices.

METHOD

A sample of 300 American firearm owners (53.0% male; 82.3% White; M_age  = 36.11, age range = 20-69) completed an online survey via Amazon's Mechanical Turk (mTurk) program.

RESULTS

Firearm owners who own a firearm for protection, compared to owning a firearm for other reasons, (1) endorsed decreased belief in the relationship between firearm ownership and storage and suicide risk, (2) were less willing to engage in the means safety measures of storing firearms safely and allowing a trusted individual to temporarily remove firearms from the home, and (3) were more likely to store their firearms loaded.

CONCLUSIONS

Reason for firearm ownership influences views regarding firearms and suicide, willingness to engage in firearm means safety, and firearm storage practices. It is essential to understand how differences in reason for firearm ownership impact these outcomes so appropriate, efficacious messaging can be developed and implemented.

Suicide Risk Assessment and Prevention: Challenges and Opportunities

Despite increased access to mental health care for the previously uninsured and expanding evidence-based treatments for mood, anxiety, psychotic, and substance use disorders, suicide is on the rise in the United States. Since 1999, the age-adjusted suicide rate in the United States has increased 33%, from 10.5 per 100,000 standard population to 14.0. As of yet, there are no clinically available biomarkers, laboratory tests, or imaging to assist in diagnosis or the identification of the suicidal individual. Suicide risk assessment remains a high-stakes component of the psychiatric evaluation and can lead to overly restrictive management in the name of prevention or to inadequate intervention because of poor appreciation of the severity of risk. This article focuses primarily on suicide risk assessment and management as a critical first step to prevention, given the fact that more research is needed to identify precision treatments and effective suicide prevention strategies. Suicide risk assessment provides the clinical psychiatrist with an opportunity for therapeutic engagement with the ultimate goals of relieving suffering and preventing suicide.

Incidence and Lethality of Suicidal Overdoses by Drug Class

Importance

Prior lethality analyses of suicide means have historically treated drug poisoning other than alcohol poisoning as a lumped category. Assessing risk by drug class permits better assessment of prevention opportunities.

Objective

To investigate the epidemiology of drug poisoning suicides.

Design, Setting, and Participants

This cross-sectional study analyzed censuses of live emergency department and inpatient discharges for 11 US states from January 1, 2011, to December 31, 2012, as well as Healthcare Cost and Utilization Project national live discharge samples for January 1 to December 31, 2012, and January 1 to December 31, 2016, and corresponding Multiple Cause of Death census data. Censuses or national samples of all medically identified drug poisonings that were deliberately self-inflicted or of undetermined intent were identified using diagnosis and external cause codes. Data were analyzed from June 2019 to January 2020.

Main Outcomes and Measures

Distribution of drug classes involved in suicidal overdoses. Logistic regressions on the state data were used to calculate the odds and relative risk (RR) of death for a suicide act that involved a drug class vs similar acts excluding that class.

Results

Among 421 466 drug poisoning suicidal acts resulting in 21 594 deaths, 19.6% to 22.5% of the suicidal drug overdoses involved benzodiazepines, and 15.4% to 17.3% involved opioids (46.2% men, 53.8% women, and <0.01% missing; mean age, 36.4 years). Opioids were most commonly identified in fatal suicide poisonings (33.3%-47.8%). The greatest RR for poisoning suicide completion was opioids (5.20 times the mean for suicide acts that did not involve opioids; 95% CI, 4.86-5.57; sensitivity analysis range, 3.99-6.86), followed by barbiturates (RR, 4.29; 95% CI, 3.35-5.45), antidepressants (RR, 3.22; 95% CI, 2.95-3.52), antidiabetics (RR, 2.57; 95% CI, 1.94-3.41), and alcohol (conservatively, because 30% of death certifiers do not test for alcohol; RR, 2.04; 95% CI, 1.84-2.26). The updated toxin diagnosis coding in International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, used to code the 2016 data revealed that calcium channel blockers also had a high RR of 2.24 (95% CI, 1.89-2.61). Translated to attributable fractions, approximately 81% of suicides involving opioids would not have been fatal absent opioids. Similarly, 34% of alcohol-involved suicide deaths were alcohol attributable.

Conclusions and Relevance

These findings suggest that preventing access to lethal means for patients at risk for suicide should extend to drugs with high case fatality rates. Blister packing and securely storing lethal drugs seems advisable.

Annual Research Review: A meta-analytic review of worldwide suicide rates in adolescents

Suicide is a leading cause of death among youth worldwide. The purpose of the current review was to examine recent cross-national trends in suicide mortality rates among 10- to 19-year-olds. This study extracted suicide mortality data from the World Health Organization's (WHO) Mortality Database for the most recent year (since 2010) from any country with available high-quality data (as defined by the WHO's guidelines). Data on access to lethal means (firearms, railways) and measures of economic quality (World Bank Income Group) and inequality (Gini coefficients) were obtained from publicly available data sources. Cross-national suicide mortality rates in youth were heterogeneous. The pooled estimate across all ages, sexes, and countries was 3.77/100,000 people. The highest suicide rates were found in Estonia, New Zealand, and Uzbekistan. Suicide rates were higher among older compared with younger adolescents and higher among males than females. The most common suicide methods were hanging/suffocation and jumping/lying in front of a moving object or jumping from a height. Firearm and railway access were related to suicide deaths by firearms and jumping/lying, respectively. Economic quality and inequality were not related to overall suicide mortality rates. However, economic inequality was correlated with a higher ratio of male:female suicides. This study provides a recent update of cross-national suicide trends in adolescents. Findings replicate prior patterns related to age, sex, geographic region, and common suicide methods. New to this review are findings relating suicide method accessibility to suicide mortality rates and the significant association between income inequality and the ratio of male:female suicide. Future research directions include expanding the worldwide coverage to more low- and middle-income countries, examining demographic groupings beyond binary sex and to race/ethnicity within countries, and clarifying factors that account for cross-national differences in suicide trends.

Suicide among ambulance service staff: a review of coroner and employment records

Background:

There is growing evidence to suggest that ambulance service staff may be at increased risk for suicide; however, few studies have explored risk factors within this occupational group.

Aim:

To investigate factors commonly associated with ambulance staff suicides.

Method:

Eleven ambulance service trusts across the United Kingdom were asked to return details of staff suicides occurring between January 2014 and December 2015. Coroners were then contacted to request permission to review the records of the deceased.

Results:

Fifteen suicides were identified (73% male, mean age 42 years). Inquest data were available on 12 deaths. The most common method used was hanging. Possible risk factors identified included recent return to work following a period of sickness absence, poor mental health, relationship and debt problems, history of self-harm and the loss of a driving licence/change in job role.

Conclusion:

Identifying characteristics of suicide among this high-risk group is important to inform the development of suicide prevention initiatives. Additional research is needed with an adequate control group to further explore the risk factors identified in this study.

Barriers for the Research, Prevention, and Treatment of Suicidal Behavior

Efforts in research, prevention, and treatment of suicidal behavior have produced mixed results. One of the main barriers to combating suicidal behavior lies in the very conceptualization of suicide, a phenomenon that is at once sociological, psychiatric, and even philosophical, and one that has not always been included in the field of health care. There are also many barriers at the social level, ranging from stigma against people with suicidal behavior to stigma towards psychiatric care, as well as the controversial role of the media. The media plays an important role in society and depending on its attitude it can be either beneficial or harmful in our fight against suicidal behavior. Differences between countries - in the provision of resources, in the way of understanding the phenomenon or in the manner of providing official figures - pose an additional challenge to suicide prevention on a global level. In the field of research, predicting suicidal behavior by identifying effective risk markers is severely hampered by the low occurrence of suicide in the population, which limits the statistical power of studies. The authors recommend combining various risk factors to build predictive models. This, in addition to employing increasingly precise machine learning techniques, is a step in the right direction, although there is still a long way to go before the expected results can be obtained. Finally, adequate training of health professionals, both specialized and non-specialized, as well as gatekeeper training, is crucial for implementing suicide prevention strategies in the population.

Comorbidity Profiles Identified in Older Primary Care Patients Who Attempt Suicide

OBJECTIVES

To identify comorbidity profiles of older patients last seen in primary care before a suicide attempt and assess attempt and clinical factors (eg, means and lethality of attempt) associated with these profiles.

DESIGN

Cohort study and latent class analysis using Department of Veterans Affairs (VA) national data (2012-2014).

SETTING

All VA medical centers in the United States.

PARTICIPANTS

A total of 2131 patients 65 years and older who were last seen by a primary care provider before a first documented suicide attempt.

MEASUREMENTS

Fatal suicide attempt and means were identified using the National Suicide Data Repository. Nonfatal attempt was defined using the National Suicide Prevention Applications Network. Medical and psychiatric diagnoses and other variables were determined from electronic medical records.

RESULTS

Patients (mean age = 74.4 y; 98.2% male) were clustered into five classes based on medical and psychiatric diagnoses: Minimal Comorbidity (23.2%); Chronic Pain-Osteoarthritis (30.1%); Depression-Chronic Pain (22.9%); Depression-Medical Comorbidity (16.5%); and High Comorbidity (7.3%). The patients in the Minimal Comorbidity and Chronic Pain-Osteoarthritis classes were most likely to attempt fatally compared with classes with a higher burden of comorbidities. Overall, 61% of the sample attempted fatally, and 82.5% of suicide decedents used firearms.

CONCLUSION

This study provides evidence that most comorbidity profiles (>50%) in primary care patients attempting suicide were characterized by minimal depression diagnoses and fatal attempts, mostly with firearms. These findings suggest that more than a depression diagnosis contributes to risk and that conversations about firearm safety by medical providers may play an important role in suicide intervention and prevention. J Am Geriatr Soc 67:2553-2559, 2019.

Substances Involved in Suicidal Poisonings in the United States

OBJECTIVE

This study investigated specific substances most commonly involved in suicidal poisonings, causing severe clinical effects, and leading to intensive treatments.

METHOD

Suicidal poisoning cases for individuals ≥13 years old were obtained from the National Poison Data System for 2011-2015. The most common products involved in single and multiple-product poisonings were identified. Single product cases were used to calculate substances causing the largest numbers of serious clinical effects and leading to intensive treatments.

RESULTS

More than half of reported cases involved only a single product (54.4%), but this frequency was higher at the extremes of age (66.7% in adolescents 13-19 years old and 70.5% in individuals ≥90 years old) and among pregnant women (65.8%). The top three substances involved in single-product poisonings were over-the-counter (OTC) medications, while alcohol and prescription sedatives were most common in multiple-product poisonings. One OTC medication, diphenhydramine, was a frequent cause of several serious clinical effects and intensive treatments.

CONCLUSIONS

Single product suicidal poisonings were more frequent with extremes of age and in pregnancy. OTC products were more frequently used in single product attempts. Products causing serious clinical effects can be targeted for suicide prevention efforts as well as education of health care providers.

Political Beliefs, Region of Residence, and Openness to Firearm Means Safety Measures to Prevent Suicide

Firearms account for approximately half of all suicides in the United States and are highly lethal, widely available, and popular; thus, are an ideal candidate for targeted means safety interventions. However, despite their value as a suicide prevention tool, firearm means safety strategies are not widely utilized, possibly due to factors which impede openness to their use. This study examines the relationship between region, political beliefs, and openness to firearm means safety in a sample of 300 American firearm owners. Overall, firearm owners were more willing to engage in means safety for others than for themselves and to store firearms safely than temporarily remove them from the home. Social policy views and region were significantly associated with openness to firearm means safety measures, however, economic policy views were not. This study provides further context for the development and implementation of efficacious means safety measures capable of overcoming potential barriers to their use.

Access to means of lethal overdose among psychiatric patients with co-morbid physical health problems: Analysis of national suicide case series data from the United Kingdom

BACKGROUND

Many physical health problems are associated with elevated suicide risk whilst also providing access to means of overdose. We aimed to investigate whether psychiatric patients with physical co-morbidities who die by suicide were more likely than those without co-morbidities to self-poison with non-psychotropic medications.

METHODS

We analysed data on 14,648 psychiatric patients who died by suicide in England & Wales during 2004-2015, as recorded by the National Confidential Inquiry into Suicide and Safety in Mental Health. Using logistic regression models adjusted for age, gender, ethnicity, and primary drug dependence/misuse we compared patients diagnosed with physical co-morbidities versus those without to assess whether a greater proportion of the former had died by overdose, and medication prescribed to treat such disorders (e.g. opioids, insulin).

RESULTS

24% (n = 3525) were recorded as having physical co-morbidity. A greater proportion of these individuals died by self-poisoning than those without physical co-morbidity (37% vs. 20%, p < .001; adjusted OR 2.47; 95% CI 2.26-2.70), and they were more likely to have used medications for a physical health disorder in overdose (50% vs. 34%; adjusted OR 2.10; 95% CI 1.80-2.46), particularly opioids (30% vs. 22%; p < .001), paracetamol/opioid compounds (11% vs. 7%, p < .001) and insulin (4% vs. 1%, p < .001).

LIMITATIONS

Use of survey data may have resulted in under-reporting of physical health problems and/or overdose medications.

CONCLUSIONS

Overdose, rather than hanging, is the leading cause of suicide among psychiatric patients with physical co-morbidities, particularly using non-psychotropic medications. There is potential for means restriction in preventing suicide among these patients.

Suicide by hanging: Results from a national survey in Switzerland and its implications for suicide prevention

BACKGROUND

Hanging is a frequent suicide method, but developing measures to prevent suicide by this method is particularly challenging. The aim of this study is to gain new knowledge that would enable the design of effective of measures that would help prevent suicide by hanging.

METHODS

A total of 6,497 suicides registered across the eight Swiss Forensic Institutes (IRM) were analysed. Of these, 1,282 (19.7%) persons hung themselves. T-test and chi-square tests. and chi-square tests were used to analyse …(or determine, or investigate) …group differences regarding sociodemographic variables and triggers.

FINDINGS

Men and women who hung themselves showed no significant differences in sociodemographic variables. However, women were significantly more likely to have a psychiatric illness history, whereas men were more likely to have somatic diagnoses. In controlled environments, people used shelves, plumbing and windows more often than beams, pipes, bars and hooks to hang themselves. Compared with other suicide methods, hanging was more likely to have been triggered by partner and financial problems.

CONCLUSIONS

Suicide by hanging can be best prevented in institutions (e.g. psychiatric hospitals, somatic hospitals, prisons). These institutions should be structurally evaluated and modified with a primary focus on sanitary areas, windows and shelves. Otherwise, it is important to use general suicide prevention measures, such as awareness raising and staff training in medical settings, low-threshold treatment options and regular suicide risk assessment for people at risk.