Who commits suicide after a suicide attempt? An 8 to 10 year follow up in a suburban catchment area

Suicide mortality after a nonfatal suicide attempt: A systematic review and meta-analysis

INTRODUCTION

Deliberate self-harm and suicide attempts share common risk factors but are associated with different epidemiological features. While the rate of suicide after deliberate self-harm has been evaluated in meta-analyses, the specific rate of death by suicide after a previous suicide attempt has never been assessed. The aim of our study was to estimate the incidence of death by suicide after a nonfatal suicide attempt.

METHOD

We developed and followed a standard meta-analysis protocol (systematic review registration-PROSPERO 2021: CRD42021221111). Randomized controlled trials and cohort studies published between 1970 and 2020 focusing on the rate of suicide after suicide attempt were identified in PubMed, PsycInfo and Scopus and qualitatively described. The rates of deaths by suicide at 1, 5 and 10 years after a nonfatal suicide attempt were pooled in a meta-analysis using a random-effects model. Subgroup analysis and meta-regressions were also performed.

RESULTS

Our meta-analysis is based on 41 studies. The suicide rate after a nonfatal suicide attempt was 2.8% (2.2-3.5) at 1 year, 5.6% (3.9-7.9) at 5 years and 7.4% (5.2-10.4) at 10 years. Estimates of the suicide rate vary widely depending on the psychiatric diagnosis, the method used for the suicide attempt, the type of study and the age group considered.

CONCLUSION

The evidence of a high rate of suicide deaths in the year following nonfatal suicide attempts should prompt prevention systems to be particularly vigilant during this period.

Assessment of Contributing Factors and Treatment Practices for Therapeutic Efficacy and Drug-Related Problems in Suicidal Psychotic Patients

Suicide, a deliberate act of self-harm with the intention to die, is an emerging health concern but, unfortunately, the most under-researched subject in Pakistan, especially in Khyber Pukhtunkhwa (KPK). In this study, we aimed to identify risk factors that can be associated with suicidal behavior (SB) and to evaluate the prevailing treatment practices for therapeutic efficacy and drug-related problems (DRPs) in psychotic patients among the local population of KPK. A prospective, multicenter study was conducted for suicidal cases admitted to the study centers by randomized sampling. Socio-demographics and data on suicidal behavior were assessed using the Columbia-Suicide Severity Rating Scale (C-SSRS), socioeconomic condition by Kuppuswamy socioeconomic scale (KSES) and treatment adherence by Morisky Medication-Taking Adherence Scale (MMAS-4). Drug-related problems and the therapeutic efficacy of prevailing treatment practices were assessed at baseline and follow-up after 3 months of treatment provided. Regarding suicidality (N = 128), females reported more ideations (63.1%), while males witnessed more suicidal behavior (66.6%, p < 0.001). Suicide attempters were mostly married (55.6%, p < 0.002); highly educated (53.9%, p = 0.004); dissatisfied with their life and had a previous history (p < 0.5) of suicide attempt (SA) (20.6%), self-injurious behavior (SIB) (39.7%) and interrupted (IA) or aborted attempts (AA) (22.2%). A greater improvement was observed in patients receiving combination therapy (p = 0.001) than pharmacotherapy (p = 0.006) or psychotherapy (p = 0.183), alone. DRPs were also detected, including drug-selection problems (17.88%), dose-related problems (20.64%), potential drug−drug interactions (24.31%), adverse drug reactions (11.46%) and other problems like inadequate education and counseling (21.55%). Furthermore, it was also found that psychotic patients with suicidal ideations (SI) were significantly (p = 0.01) more adherent to the treatment as compared to those with suicidal attempts. We concluded that suicide attempters differed significantly from patients with suicidal ideations in psychotic patients and presented with peculiar characteristics regarding socio-demographic factors. A combination of therapies and adherence to the treatment provided better outcomes, and targeted interventions are warranted to address drug-related problems.

Adversity Over the Life Course: A Comparison Between Women and Men Who Died by Suicide

Purpose: This study sets out to compare the presence of life events across different domains throughout the life course which may contribute to the burden of adversity experienced differently among men and women who died by suicide. Method: In a sample of 303 individuals (213 men and 90 women), data was derived from extensive clinical interviews conducted with informants. Models allowed the identification of patterns of life trajectories. Results: Overall, the burden of adversity was similar across the life course except for the 5-9, 25-29, and 30-34 age ranges, where a significant difference appeared between genders [t-test = 2.13 (p < 0.05), 2.16 (p < 0.05) and 3.08 (p < 0.005), respectively] that seems to disadvantage women. The early adversities of violence and neglect, between 0 and 19 years old, are important for both groups. During the life course, women were more exposed to interpersonal adverse events such as being victims of negligence and violence, relational difficulties or abuse from their spouse, as well as tension with their own children. Men encountered more academic difficulties, legal entanglements and financial difficulties, and were more than three times more likely to develop an alcohol/drug abuse problem than women. Conclusions: The data suggests some gender differences in exposure to longstanding and severe life problems contributing to suicide vulnerability. For women, the continuing burden emerges from chronic interpersonal adversities, whereas, for men, the adverse events are to a larger degree socially exposed, compounded with alcohol misuse. The adversities, especially those of a public or social nature, may be witnessed by others, which should favor the detection of vulnerability over the life course, and psychosocial or mental health services should be offered and provided earlier during the life course. Yet more men die by suicide than women. Resiliency and protective factors may benefit women to a greater degree. Future research should tackle the challenge of investigating these important elements. Meanwhile, from a public health perspective, access to psychosocial and mental health services and social acceptability of seeking services should be part of an ongoing effort in all institutional structures as a way of decreasing downstream mental health problems and vulnerability to suicide.

Correlation of Suicidal Thoughts and Toxoplasmosis in Patients With Depression

Objective

We investigated the correlation between serum anti-Toxplasma gondii IgG and suicidal thoughts in depressive patients.

Methods

Depressive patients with (n = 100) and without (n = 100) suicidal thoughts along with 100 healthy control subjects were recruited for this study. In all three groups, a semi-structured clinical interview form called Structured Clinical Interview for DSM-IV (Diagnostic and Statistical Manual of Mental Disorders) Axis-I Disorder (SCID-I), Hamilton Depression Rating Scale (HAMD), suicidal behavior scale, and a sociodemographic data form were completed. Sera from all participants were taken, and anti-toxoplasma IgG was measured by Enzyme Linked Immunosorbent Assay (ELISA)-Chemiluminescent Microparticle Immunoassay. Statistical analysis of the data was performed.

Results

The serum anti-toxoplasma IgG levels of patients with suicidal thoughts were significantly higher than those without suicidal thoughts and the controls, which were 80.04 ± 40.66, 78 ± 14.82, and 19.98 ± 14.65, respectively, p < 0.001. There was no correlation between toxoplasma IgG and HAMD score in patients lacking suicidal thoughts (r = -0.112, p = 0.463).

Conclusion

This study shows a correlation between seropositivity for anti-Toxoplasma gondii IgG and depression with suicidal thoughts.

Effect of a Suicide Prevention Centre for young people with suicidal behaviour in Copenhagen

Background

In the 1980s, suicide rates in Denmark were among the highest in the world. In 1992, a Suicide Prevention Centre was opened in Copenhagen with a 2-week programme of social and psychological treatment. The aim of the study was to evaluate the effect of the Suicide Prevention Centre.

Methods

In a quasi-experimental study, 362 patients in the Suicide Prevention Centre and a parallel comparison group of 39 patients were interviewed with European Parasuicide Study Interviewer Schedule I (EPSIS I), which is a comprehensive interview including several validated scales. All patients were invited to follow-up interviews with EPSIS II and followed in the National Patients Register and the Cause of Death Register.

Results

At the 1-year follow-up, 59% of patients in the intervention group and 53% of patients in the comparison groups were interviewed with EPSIS II. The intervention group obtained a significantly greater improvement in Beck’s Depression Inventory, Hopelessness Scale, Rosenberg’s Self-Esteem Scale and CAGE-score and a significantly lower repetition rate.

Discussions

Although the design cannot exclude selection bias, it seems likely that the improvement in the intervention group was facilitated by the treatment.

Self-Inflicted Gunshot Wound as a Consideration in the Patient Selection Process for Facial Transplantation

Facial transplantation is emerging as a therapeutic option for self-inflicted gunshot wounds. The self-inflicted nature of this injury raises questions about the appropriate role of self-harm in determining patient eligibility. Potential candidates for facial transplantation undergo extensive psychosocial screening. The presence of a self-inflicted gunshot wound warrants special attention to ensure that a patient is prepared to undergo a demanding procedure that poses significant risk, as well as stringent lifelong management. Herein, we explore the ethics of considering mechanism of injury in the patient selection process, referring to the precedent set forth in solid organ transplantation. We also consider the available evidence regarding outcomes of individuals transplanted for self-inflicted mechanisms of injury in both solid organ and facial transplantation. We conclude that while the presence of a self-inflicted gunshot wound is significant in the overall evaluation of the candidate, it does not on its own warrant exclusion from consideration for a facial transplantation.

Mean platelet volume and neutrophil to lymphocyte ratio as parameters to indicate the severity of suicide attempt

This study was designed to compare the complete blood count (CBC) values of 38 violent suicidal attempt (VSA) and 38 nonviolent suicidal attempt (NVSA) patients and 38 healthy controls, particularly mean platelet volume (MPV) and neutrophil to lymphocyte ratio (NLR). MPV was found to be significantly higher (P = 0.000), and PLT was found to be significantly lower in the VSA group (P = 0.001). NLR was found to be significantly higher (P = 0.005) in the VSA group. The area under the receiver operating characteristic curve of MPV levels for VSA was 0.78 and 0.68 for NLR in the VSA group when compared with the NVSA group.

Repeated self-injury: perspectives from general psychiatry

Patients who repeatedly injure themselves present particular management problems for general psychiatric teams. This article, the first of a series of four, examines the characteristics of those that present to adult mental health services, and the possible underlying background and trigger factors that lead to these anxiety-raising events. Suggestions are made on preventive and assessment procedures, staff reactions and management strategies aimed at helping patients deal with the overwhelming feelings that underlie self-injury.

An Examination of United States Air Force Suicide Decedents Based on Documented Suicide Attempt Histories

In this study, we compared United States military decedents who died by suicide on their first attempt with decedents who had made multiple attempts. Death investigation files for 217 United States Air Force (USAF) personnel who died by suicide between 1996 and 2006 were coded for demographic, psychosocial, and psychiatric characteristics. Among USAF suicide decedents, 77% died by suicide on their first attempt and 23% had a documented history of at least one prior attempt. Decedents with a history of prior attempts were more likely to have an interpersonal stressor within 3 months of death and were twice as likely to have a documented Axis I diagnosis. There were few differences between military suicide decedents based on history of prior attempts. Further research is needed to inform military suicide prevention endeavors.

Demographics as predictors of suicidal thoughts and behaviors: A meta-analysis

BACKGROUND

Certain demographic factors have long been cited to confer risk or protection for suicidal thoughts and behaviors. However, many studies have found weak or non-significant effects. Determining the effect strength and clinical utility of demographics as predictors is crucial for suicide risk assessment and theory development. As such, we conducted a meta-analysis to determine the effect strength and clinical utility of demographics as predictors.

METHODS

We searched PsycInfo, PubMed, and GoogleScholar for studies published before January 1st, 2015. Inclusion criteria required that studies use at least one demographic factor to longitudinally predict suicide ideation, attempt, or death. The initial search yielded 2,541 studies, 159 of which were eligible. A total of 752 unique statistical tests were included in analysis.

RESULTS

Suicide death was the most commonly studied outcome, followed by attempt and ideation. The average follow-up length was 9.4 years. The overall effects of demographic factors studied in the field as risk factors were significant but weak, and that of demographic factors studied as protective factors were non-significant. Adjusting for publication bias further reduced effect estimates. No specific demographic factors appeared to be strong predictors. The effects were consistent across multiple moderators.

CONCLUSIONS

At least within the narrow methodological constraints of the existing literature, demographic factors were statistically significant risk factors, but not protective factors. Even as risk factors, demographics offer very little improvement in predictive accuracy. Future studies that go beyond the limitations of the existing literature are needed to further understand the effects of demographics.

Suicide Attempt as a Risk Factor for Completed Suicide: Even More Lethal Than We Knew

OBJECTIVE

While suicide attempt history is considered to robustly predict completed suicide, previous studies have limited generalizability because of using convenience samples of specific methods/treatment settings, disregarding previous attempts, or overlooking first-attempt deaths. Eliminating these biases should more accurately estimate suicide prevalence in attempters.

METHOD

This observational retrospective-prospective cohort study using the Rochester Epidemiology Project identified 1,490 (males, N=555; females, N=935) Olmsted County residents making index suicide attempts (first lifetime attempts reaching medical attention) between January 1, 1986, and December 31, 2007. The National Death Index identified suicides between enrollment and December 31, 2010 (follow-up 3-25 years). Medical records were queried for sex, age, method, and follow-up care for index attempt survivors. Coroner records yielded data on index attempt deaths.

RESULTS

During the study period, 81/1,490 enrollees (5.4%) died by suicide. Of the 81, 48 (59.3%) perished on index attempt; 27 of the surviving 33 index attempt survivors (81.8%) killed themselves within a year. Males were disproportionately represented: 62/81 (11.2% of men, 76.5% of suicides) compared with 19/81 (2.0% of women, 23.5% of suicides). Of dead index attempters, 72.9% used guns, yielding an odds ratio for gunshot death, compared with all other methods, of 140 (95% CI=60-325). When adjusted for covariates, survivors given follow-up psychiatric appointments had significantly lower likelihood of subsequent suicide (odds ratio=0.212, 95% CI=0.089-0.507).

CONCLUSIONS

At 5.4%, completed suicide prevalence in this community cohort of suicide attempters was almost 59% higher than previously reported. An innovative aspect of this study explains the discrepancy: by including index attempt deaths-approximately 60% of total suicides-suicide prevalence more than doubled. We contend that counting both index and subsequent attempt deaths more accurately reflects prevalence. Our findings support suicide attempt as an even more lethal risk factor for completed suicide than previously thought. Research should focus on identifying risk factors for populations vulnerable to making first attempts and target risk reduction in those groups.

The investigation of factors related to suicide attempts in Southeastern Turkey

BACKGROUND

Suicide is an important health problem in Turkey as it is in all regions of the world. Suicidal behavior has multiple causes, which are broadly divided into those related to proximal stressors and those due to predisposition. Suicide statistics may be associated with mental health disorders, which are among the foremost predictors of suicide attempts. More than 90% of patients who commit suicide have a diagnosable psychiatric disorder, usually a major depressive disorder. Other major risk factors for suicide attempts are history of suicide attempts in the family, stressful life events, sleep disturbances, poor income, unemployment, severity of symptoms of depression, and anxiety. Sleep is a complex phenomenon. Sleep disturbances can therefore be contributed to the emergence of suicidal behavior allowing for the possibility of predicting future suicides.

METHODS

We evaluated 106 patients who were admitted after suicide attempts to the Department of Psychiatry at Dicle University Faculty of Medicine. The recruited subjects were assessed by Structured Clinical Interview for DSM-IV Axis I disorders, and the intensity of symptoms was evaluated using the Beck Anxiety Inventory, Hamilton Depression Rating Scale, and Pittsburgh Sleep Quality Index. The mean values of the subjects attempting multiple and single suicides were compared using appropriate inferential statistical tests.

RESULTS

Most suicide attempts are believed to be preventable. Our results revealed that a great variety of risk factors are associated with an increased risk for multiple suicide attempts. Most of these attempts appeared to be spontaneous and impulsive rather than planned. In particular, this study highlights the importance of previous suicide attempts, history of suicide in the family, history of stressful life events in the previous 6 months, poor income, unemployment, sleep disturbances, severe hopelessness with depression, and coexisting symptoms of anxiety as risk factors.

CONCLUSION

The first step in prevention of suicides is doubtlessly strong and reliable communication, due to the fact that the majority of subjects who commit suicide have had contact with a health professional during the month before the suicide.

Anxiety and its disorders as risk factors for suicidal thoughts and behaviors: A meta-analytic review

Suicidal thoughts and behaviors are highly prevalent public health problems with devastating consequences. There is an urgent need to improve our understanding of risk factors for suicide to identify effective intervention targets. The aim of this meta-analysis was to examine the magnitude and clinical utility of anxiety and its disorders as risk factors for suicide ideation, attempts, and deaths. We conducted a literature search through December 2014; of the 65 articles meeting our inclusion criteria, we extracted 180 cases in which an anxiety-specific variable was used to longitudinally predict a suicide-related outcome. Results indicated that anxiety is a statistically significant, yet weak, predictor of suicide ideation (OR=1.49, 95% CI: 1.18, 1.88) and attempts (OR=1.64, 95% CI: 1.47, 1.83), but not deaths (OR=1.01, 95% CI: 0.87, 1.18). The strongest associations were observed for PTSD. Estimates were reduced after accounting for publication bias, and diagnostic accuracy analyses indicated acceptable specificity but poor sensitivity. Overall, the extant literature suggests that anxiety and its disorders, at least when these constructs are measured in isolation and as trait-like constructs, are relatively weak predictors of suicidal thoughts and behaviors over long follow-up periods. Implications for future research priorities are discussed.

Patterns of presentation for attempted suicide: analysis of a cohort of individuals who subsequently died by suicide

All suicides and related prior attempts occurring in Northern Ireland over two years were analyzed, focusing on number and timing of attempts, method, and mental health diagnoses. Cases were derived from coroner's records, with 90% subsequently linked to associated general practice records. Of those included, 45% recorded at least one prior attempt (with 59% switching from less to more lethal methods between attempt and suicide). Compared with those recording one attempt, those with 2+ attempts were more likely to have used less lethal methods at the suicide (OR = 2.77: 95% CI = 1.06, 7.23); and those using less lethal methods at the attempts were more likely to persist with these into the suicide (OR = 3.21: 0.79, 13.07). Finally, those with preexisting mental problems were more likely to use less lethal methods in the suicide: severe mental illness (OR = 7.88: 1.58, 39.43); common mental problems (OR = 3.68: 0.83, 16.30); and alcohol/drugs related (OR = 2.02: 0.41, 9.95). This analysis uses readily available data to highlight the persisting use of less lethal methods by visible and vulnerable attempters who eventually complete their suicide. Further analysis of such conditions could allow more effective prevention strategies to be developed.

Adjunctive lithium treatment in the prevention of suicidal behavior in patients with depression and comorbid personality disorders

OBJECTIVE

Patients with both major depression and personality disorders have a high risk of suicidal behavior. Lithium is meant to have anti-suicidal properties in patients with affective disorders. The anti-suicidal effect of lithium in patients with affective disorders and comorbid personality disorders has not been investigated yet.

METHODS

A post-hoc analysis of a subsample of patients with depression and comorbid personality disorder (PD) and a recent suicide attempt (n = 19) from the prospective, placebo-controlled lithium intervention study (N = 167), was conducted.

RESULTS

Three patients in the lithium group (n = 8) and two patients in the placebo group (n = 11) presented a suicide attempt throughout the course of the study. No differences related to suicidal behavior could be detected between the placebo group and the group with lithium intervention.

CONCLUSIONS

On the basis of the small sample size, among patients with comorbid PD, lithium does not seem to have an effect on suicidal behavior in contrast to patients with affective disorders without comorbid PD.

Coping Strategies in Patients Who Had Suicide Attempts

INTRODUCTION

The aim of this study was to investigate coping strategies suggested to be a determinant of suicide attempt and to compare them with coping strategies of healthy volunteers.

METHODS

This study was conducted on 50 patients who had suicide attempts within the past two months and 52 healthy volunteers who did not have any suicide attempt. They were evaluated with the Turkish version of COPE inventory. The results were analyzed using SPSS version 15.0 for Windows.

RESULTS

In the suicide attempt group, 'active coping', 'planning', 'positive reinterpretation and growth' scores were found to be lower than that in the control group. On the other hand, 'restraint coping', 'acceptance', 'focus on and venting of emotions', 'behavioral disengagement', 'substance use' and nonfunctional coping total points were significantly higher in the suicide attempt group. The patients with depression in the suicide group were found less of the 'positive reinterpretation and growth' but more of the 'substance use' compared to the healthy group. Subjects who attempted suicide more than once tended to 'substance use' rather than 'active coping'. 'Focus on and venting of emotions' scores in suicide attempters were higher in women than in males.

CONCLUSION

We observed that individuals who attempted suicide have fewer functional coping strategies and more nonfunctional coping strategies than who do not attempt suicide. It was determined that under stressful situations, individuals with depression tended to alcohol and substance abuse instead of positive reinterpretation and growth. In subjects who had recurrent suicidal attempts, alcohol and substance abuse was more common than active coping. Women were using focusing on and venting of emotions techniques much more than men. We assume that to monitor, and in case of necessity, to change the coping strategies in suicide attempters are vitally important for preventing suicide attempts.

Methods of suicide predict the risks and method-switching of subsequent suicide attempts: a community cohort study in Taiwan

OBJECTIVE

Suicide is a major public health concern. This study aimed to determine the predictors of repeated suicide attempts, focusing on whether lethality level of the suicidal method predicts the risk of subsequent suicide attempts.

METHODS

All consecutive individuals (N=2,070) with an episode of nonfatal self-harm registered in a surveillance database provided by the Department of Health of Keelung City Government in Taiwan from January 1, 2006 to December 31, 2010 were enrolled and followed up until the end of 2011. The earliest attempt recorded in the database was defined as the index attempt. Subjects were classified according to suicide method into low-lethal and high-lethal groups. Data on time of and methods chosen for subsequent suicide attempts during the follow-up period were analyzed.

RESULTS

Of the total people screened for the study, 18.1% made a repeated suicide attempt. Subjects in the high-lethal group were more likely to be male; aged 35-64 years; and single, divorced, or widowed. Compared to other time intervals, most subsequent suicide attempts occurred within 6 months from the index attempt. The independent predictors for repeated suicide attempts were the use of low-lethal methods in the index attempt and being 35-49 years old. Using high-lethal methods and being older than 50 years were associated with changing suicide method for the second attempt.

CONCLUSION

Lethality level of former suicidal method could predict repeated suicide attempts and changing of suicide methods. Further clarification is needed on whether a higher risk of repeat attempts is associated with higher rates of suicide mortality.

Biological basis of suicide and suicidal behavior

OBJECTIVE

Suicide is a major public health concern as each year 30000 people die by suicide in the USA alone. In the teenage population, it is the second leading cause of death. There have been extensive studies of psychosocial factors associated with suicide and suicidal behavior. However, very little is known about the neurobiology of suicide. Recent research has provided some understanding of the neurobiology of suicide, which is the topic of this review.

METHODS

Neurobiology of suicide has been studied using peripheral tissues such as platelets, lymphocytes, and cerebrospinal fluid obtained from suicidal patients or from the postmortem brains of suicide victims.

RESULTS

These studies have provided encouraging information with regard to the neurobiology of suicide. They show an abnormality of the serotonergic mechanism, such as increased serotonin receptor subtypes and decreased serotonin metabolites (e.g. 5-hydroxyindoleacetic acid). These studies also suggest abnormalities of receptor-linked signaling mechanisms such as phosphoinositide and adenylyl cyclase. Other biological systems that appear to be dysregulated in suicide involve the hypothalamic-pituitary-adrenal axis, and neurotrophins and neurotrophin receptors. More recently, several studies have also indicated abnormalities of neuroimmune functions in suicide.

CONCLUSIONS

Some encouraging information emerged from the present review, primarily related to some of the neurobiological mechanisms mentioned above. It is hoped that neurobiological studies may eventually result in the identification of appropriate biomarkers for suicidal behavior as well as appropriate therapeutic targets for its treatment.

Sociodemographic and psychopathological risk factors in repeated suicide attempts: gender differences in a prospective study

BACKGROUND

The prevention of the repetition of suicide attempts is an important feature of the care of attempters but current data fail to give actual predictors of repetition. The aim of this study was to characterize sociodemographic and psychopathological features and risk factors associated with future repetition of suicide attempts in two years. The study focused on differences between men and women.

METHODS

273 participants selected in psychiatric emergency units after their admission for a suicide attempt (index) were included in the study. Subsequent suicide attempts occurring within a two year follow-up were identified from the regional observatory of suicide attempts. At inclusion, sociodemographic variables and psychopathological data were collected. In particular, psychometric evaluations were performed using the following scales: BDI-SF, SIS, BIS and BDHI. The lifetime history of suicide attempt was also noted.

RESULTS

Repetition of suicide attempt in 2 years was associated with current follow up and treatment, a personal history of multiple suicide attempt, post traumatic stress disorder, current recurrent psychotic syndrome and substance misuse. Specific features of men and women repeaters have been identified. Men repeaters were characterized by substance use disorders whereas the re-attempt in women was associated with current follow up and treatment, post traumatic stress disorder and higher BDI-SF score.

CONCLUSIONS

Repeaters must be considered as a specific population among suicide attempters and gender differences must be taken into account in this particular population in order to promote more personalized prevention programs for suicidal recurrence and completed suicide.

Predictors of suicide relative to other deaths in patients with suicide attempts and suicide ideation: a 30-year prospective study

BACKGROUND

Although there is a large literature that prospectively examines predictors of suicide, low base rates of suicide and imprecision of measurement hinder definitive conclusions from being drawn.

METHOD

This study examined predictors of suicide relative to other types of death in a sample of 297 patients who had been hospitalized for suicide ideation or a suicide attempt between 1970 and 1975 and who were confirmed dead in 2005. Many predictors were measured using well-validated assessment instruments.

RESULTS

Fifty-five patients had died by suicide. Univariate predictors of an increased risk for eventual suicide included younger age, completion of at least a high school degree, a diagnosis of a psychotic disorder, taking active precautions against discovery during the attempt, and a non-zero score on the suicide item of the Beck Depression Inventory, whereas African American ethnicity was associated with a decreased risk of eventual suicide. Variables that remained significant in a multivariate analysis included younger age, African American ethnicity, and taking active precautions against discovery during the attempt. Risk factors did not vary as a function of whether eventual suicide occurred less than or more than five years after the initial evaluation or by attempter v. ideator status.

LIMITATIONS

Despite the attempt to maximize statistical power by following a high-risk sample for 30 years, the number of deaths by suicide was still relatively low.

CONCLUSIONS

Taking active precautions against discovery of a suicide attempt has the potential to be an important predictor of eventual suicide and should be assessed by clinicians. Future prospective studies should assess predictors at multiple time points to gain a richer clinical picture of the circumstances surrounding deaths by suicide.

Suicide risk factors and suicide vulnerability in various major psychiatric disorders

PRIMARY OBJECTIVES

There are many known suicide risk factors (SRF) common to major psychiatric disorders, but their impact on suicide vulnerability remains unclear. We used FALCON (Fuzzy Adaptive Learning Control Network) to evaluate those impacts.

METHODS

Staff psychiatrists completed computerized suicide risk scales (CSRS-III) including 21 SRF for 612 patients. Diagnoses were: schizophrenia, schizoaffective, major depression, anxiety disorder, bipolar affective disorder, personality disorder, organic brain syndromes, delusional disorder and other diagnoses. An optimal trained FALCON was obtained by running the network 10 times with 552 CSRS-III, validating with the balance. Medically serious suicide attempts (the vulnerability factor) served as the target variable. The significance of each variable in the trained network was determined by the magnitude of the change in output as affected by the consecutive change in all points of the variable input, then calculating the mean variance of all cases. The direction of influence was determined by the input on the entire scale of each variable, point by point, across all cases, then calculating the mean of all outputs.

RESULTS

The impact and direction of influence of the various SRF differed for each diagnosis.

CONCLUSION

Evaluation of the individual patient with his/her specific impact profile, determination of direction of influence of the corresponding SRF's may assist in increasing the accuracy of individual suicide risk assessment.

Addiction and suicidal behavior in acute psychiatric inpatients

OBJECTIVE

This study aims to evaluate the relationship of alcohol/drug use and effect severities to the degree of suicidality in acutely admitted psychiatric patients. Both degree of substance dependency and degree of substance-induced syndrome were analyzed. In addition, length of stay, involuntary status, and against medical advice discharge status were determined as they related to these variables.

METHODS

Structured clinical admissions and discharge ratings were gathered from 10,667 consecutive, single-case individual records, from an urban acute care county psychiatric hospital.

RESULTS

Data indicate that of the most severely suicidal group, 56% had substance abuse or dependence, 40% were rated as having half or more of their admission syndrome substance induced, and most had nonpsychotic diagnoses. There was an inverse relationship between degree of substance problem and length of stay. Although these patients more commonly left against medical advice, and were readmitted more frequently, they were less likely to be involuntarily committed.

CONCLUSIONS

A large, potentially lethal, and highly expensive subgroup of patients has been characterized, which might be called the "New Revolving Door acute psychiatric inpatient." This group, which uses the most expensive level of care in the mental health system but is substantially addiction related, poses special challenges for inpatient psychiatric units, addiction treatment providers, and health care planners.

Suicide Attempts Among Substance Use Disorder Patients: An Initial Step Toward a Decision Tree for Suicide Management

BACKGROUND

Little empirical data are available to develop profiles of patients who attempt suicide or to formulate a decision tree for suicide management. This study identifies profiles of patients who have a high risk of suicide attempt and takes a first step toward developing a decision tree to classify high-risk patients.

METHODS

Based on a cross-sectional, nationwide cohort of substance use disorder patients (N=34,251) in 150 Veterans Affairs (VA) facilities, a total of 5,671 patients who reported suicidal ideation in the 30 days before intake assessment were included in receiver operating characteristic (ROC) analyses to identify the 30-day risk of an actual suicide attempt. Clinical diagnostic and Addiction Severity Index interview data were used.

RESULTS

Results provide an initial decision tree to classify high-risk patients with sensitivity ranging from 0.33 to 0.89, and specificity, from 0.42 to 0.87. The factors included in the decision tree encompass history of prior suicide attempts, current drinking to intoxication, current cocaine use, first occasion of suicidal ideation, and difficulty controlling violent behavior.

CONCLUSIONS

To our knowledge, this is the first attempt to use empirical data to provide information to eventually establish a decision tree for clinical management of patients with suicidal ideation. The findings show that profiles of patients who are at high risk of suicide attempts can be effectively identified using ROC, with relatively good sensitivity and specificity.

Long- and Short-Term Risk Factors in the Prediction of Inpatient Suicide

Abstract. The prediction of suicide remains a major challenge for health care professionals in inpatient settings. A clearer identification of factors specific to inpatient suicide is required to improve both practice and research within this area. This paper provides an overview of the inpatient suicide literature to date focusing on two particularly salient themes: Long term and short term prediction of suicide. Since the concept of short-term suicide risk dominates clinical practice, issues in relation to dynamic risk factors are emphasized.

Psychiatric diagnoses in 3275 suicides: a meta-analysis

BACKGROUND

It is well known that most suicide cases meet criteria for a psychiatric disorder. However, rates of specific disorders vary considerably between studies and little information is known about gender and geographic differences. This study provides overall rates of total and specific psychiatric disorders in suicide completers and presents evidence supporting gender and geographic differences in their relative proportion.

METHODS

We carried out a review of studies in which psychological autopsy studies of suicide completers were performed. Studies were identified by means of MEDLINE database searches and by scanning the reference list of relevant publications. Twenty-three variables were defined, 16 of which evaluating psychiatric disorders. Mantel-Haenszel Weighted Odds Ratios were estimated for these 16 outcome variables.

RESULTS

Twenty-seven studies comprising 3275 suicides were included, of which, 87.3% (SD 10.0%) had been diagnosed with a mental disorder prior to their death. There were major gender differences. Diagnoses of substance-related problems (OR = 3.58; 95% CI: 2.78-4.61), personality disorders (OR = 2.01; 95% CI: 1.38-2.95) and childhood disorders (OR = 4.95; 95% CI: 2.69-9.31) were more common among male suicides, whereas affective disorders (OR = 0.66; 95% CI: 0.53-0.83), including depressive disorders (OR = 0.53; 95% CI: 0.42-0.68) were less common among males. Geographical differences are also likely to be present in the relative proportion of psychiatric diagnoses among suicides.

CONCLUSIONS

Although psychopathology clearly mediates suicide risk, gender and geographical differences seem to exist in the relative proportion of the specific psychiatric disorders found among suicide completers.

Fuzzy logic detection of medically serious suicide attempt records in major psychiatric disorders

Clinical prediction of suicide is a complicated task. The focus for improved suicide risk detection is on the subgroup of individuals whose high suicide risk remains unrecognized by clinicians. We sought to evaluate the accuracy of Fuzzy Adaptive Learning Control Network (FALCON) neural networks, a nonlinear algorithm, in identification of this subgroup. The study sample included the Computerized Scale for risk of Suicide, including 21 suicide risk factors (including the target variable) drawn from 987 patient records, completed by staff clinicians during face-to-face interviews of hospitalized patients. FALCON evaluated all records in two steps: a) 612 for training and 375 for validation, and b) 887 for training and 100 for validation. The existence of previous medically serious suicide attempts (MSSAs) was chosen as the target variable because it is generally recognized as the strongest suicide risk factor. Sensitivity, specificity, and unknown answers among MSSA and non-MSSA were as follows: 612/375 FALCON, 91%, 85%, 11%, 15%; 887/100 FALCON, 94%, 82%, 20%, 14.5%, respectively. Trained FALCON, a nonlinear neural network, achieves respectable accuracy in detecting MSSA patients based on 20 suicide risk factors. Trained FALCON may therefore assist in identification of subgroup of individuals who remain unrecognized by clinicians and contribute to prevention of suicide.

Are suicides by jumping off bridges preventable? An analysis of 50 cases from Sweden

This is a community-based sequential case series of 50 individuals who committed suicide by jumping from bridges in two regions of Sweden. Of the 50 subjects, 32 were men and 18 women, with a median age of 35 years. At least 40 had psychiatric problems. The frequency of suicide was highest during the summer months and during the weekends. A total of 27 bridges were used, with a total length of just under 9 km. Three bridges accounted for almost half of all suicides. Limiting the availability of one method of committing suicide is reported to reduce the overall suicide rate; why suicide and injury suicide preventive measures might be considered. Since this study demonstrates that few bridges attract suicide candidates, this injury mechanism needs to be acknowledged by the road system owners and included in the safety work.

Self-injury attendances in the accident and emergency department: Clinical database study

BACKGROUND

Self-injury is a neglected area of self-harm research and we know little about its epidemiology, hospital care and outcome. Aims To provide epidemiological data on self-injury and compare hospital management of self-injury with that for self-poisoning.

METHOD

Data were collected on all self-harm attendances to the general hospitals in Leeds over an 18-month period.

RESULTS

People attending hospital for self-injury or self-poisoning do not form mutually exclusive groups. There were higher proportions of self-injury episodes compared with self-poisoning, where a history of self-harm or contact with mental health services had been recorded. Fewer psychosocial assessments were carried out after episodes of self-injury compared with self-poisoning but, when they were, follow-up was recommended more often.

CONCLUSIONS

The clinical importance of self-injury is not mirrored by the level of psychosocial assessment and after-care provided.

Fatal and non-fatal repetition of self-harm. Systematic review

BACKGROUND

Non-fatal self-harm frequently leads to non-fatal repetition and sometimes to suicide. We need to quantify these two outcomes of self-harm to help us to develop and test effective interventions.

AIMS

To estimate rates of fatal and non-fatal repetition of self-harm.

METHOD

A systematic review of published follow-up data, from observational and experimental studies. Four electronic databases were searched and 90 studies met the inclusion criteria.

RESULTS

Eighty per cent of studies found were undertaken in Europe, over one-third in the UK. Median proportions for repetition 1 year later were: 16% non-fatal and 2% fatal; after more than 9 years, around 7% of patients had died by suicide. The UK studies found particularly low rates of subsequent suicide.

CONCLUSIONS

After 1 year, non-fatal repetition rates are around 15%. The strong connection between self-harm and later suicide lies somewhere between 0.5% and 2% after 1 year and above 5% after 9 years. Suicide risk among self-harm patients is hundreds of times higher than in the general population.

Suicide classification--clues and their use. a study of 122 cases of suicide and undetermined manner of death

In order to identify clues to forensic pathologist's classification of suicide, the forensic files of 100 consecutive cases of suicide, and 22 cases of undetermined manner of death, were analysed. Some specific causes of death, suicidal communication and other circumstantial evidence suggesting suicidal intent explained all but three classifications. Problematic cases concerned death by poisoning and by submersion, alcohol-dependent persons and subjects with positive blood alcohol concentration at autopsy. Guidelines to support the police investigation as well as the medico-legal examination can probably reduce the number of undetermined cases in cases of possible suicide.

Validation of the Computerized Suicide Risk Scale--a backpropagation neural network instrument (CSRS-BP)

BACKGROUND

Medically serious suicide attempts have been recognized as the most important predictor of suicide. The Computerized Suicide Risk Scale based on backpropagation neural networks (CSRS-BP) has been recently found efficient in the detection of records of patients who performed medically serious suicide attempts (MSSA). OBJECTIVES. To validate the CSRS-BP by: 1) using the CSRS-BP with patients instead of records; 2) comparing the ability of expert psychiatrists to detect MSSA, using the CSRS checklist; and 3) comparing the results of the Risk Estimator for Suicide (RES) and the self-rating Suicide Risk Scale (SRS) with the CSRS-BP.

METHODS

Two hundred fifty psychiatric inpatients (35 MSSA and 215 non-MSSA) were diagnosed by clinicians using the SCID DSM-IV. Three expert psychiatrists completed the CSRS checklist, and the RES for each patient, and the patients completed the self-report SRS assessment scale. The CSRS-BP was run for each patient. Five other expert psychiatrists assessed the CSRS checklists and estimated the probability of MSSA for each patient. Comparisons of sensitivity and specificity rates between CSRS-BP, assessment scales and experts were done.

RESULTS

Initially, the CSRS-BP, RES, SRS, and experts performed poorly. Although sensitivity and specificity rates significantly improved (two to four times) after the inclusion of information regarding the number of previous suicide attempts in the input data set, results still remained insignificant.

CONCLUSIONS

The CSRS-BP, which was very successful in the detection of MSSA patient records, failed to detect MSSA patients in face-to-face interviews. Information regarding previous suicide attempts is an important MSSA predictor, but remains insufficient for the detection of MSSA in individual patients. The detection rate of the SRS and RES scales was also poor and could therefore not identify MSSA patients or be used to validate the CSRS-BP.

Incidence of Completed and Attempted Suicide in Trabzon, Turkey

Summary: Objective: Studies of completed and attempted suicide in Turkey are based on data of State Institute of Statistics (SIS) and emergency clinics of the large hospitals. This study seeks (1) to find, independent of the SIS and hospital data, the annual incidences of completed and attempted suicide in Trabzon, Turkey; (2) to examine the associated factors between the incidence of completed and attempted suicide. Method: The data are derived by using a method specially designed for this study. Data sources include emergency clinics in all hospitals, village clinics, the Forensic Medical Center of Trabzon, the Governorship of Trabzon, “mukhtars” (local village representatives) of neighborhoods, the Office of the Public Prosecutor of Trabzon, the Police Headquarters and Gendarmerie, and the local press organs. Results: The incidences of completed and attempted suicide per 100,000 inhabitants turned out to be 2.60 and 31.5, respectively, whereas the SIS reported the incidence of completed suicide to be 1.11 per 100,000 inhabitants in Trabzon in 1995. Conclusion: Our results demonstrate that SIS data are inadequate for suicide research in Turkey. Our findings show that the risk of completed and attempted suicide is high in young, unmarried, and unemployed persons, and that these groups must be carefully evaluated for suicide risk. The study highlights the need for culture-specific research on suicidal behavior in Turkey.

Suicide in women

This article reviews research into suicide in women during the last 25 years. National rates vary between the extremes of 19/10(5) per year in Sri Lanka and < 1/10(5) per year in the Philippines and Egypt, but almost everywhere rates for women are much lower than male rates, with a median ratio of 2.8/1. The exceptions are in India and China, which report higher rates in young married women. The reproductive process has some influence. While menstruation, hormonal treatment, pregnancy and the puerperium have no major effect, unwanted pregnancy may still lead to suicide under certain circumstances, and severe labour can occasionally do so. Having children protects, but the relative risk is no more than 2.0 in nulliparous women. Social factors also have a limited effect. There are higher rates of suicide in divorced women, but the evidence on widowhood is equivocal. Prosperity and employment have no effect. Sexual abuse, rape and domestic violence undoubtedly lead to suicide attempts, but the evidence on completed suicide is lacking. There are many unanswered questions, especially why rates of completed suicide for women (with a greater prevalence of overt depression) are lower than for men, and why Chinese and Indian women have higher rates. More research is required, especially from developing nations.

Suicide attempts preceding completed suicide

BACKGROUND

This study investigated three questions with major implications for suicide prevention: the sensitivity of the history of previous suicide attempt(s) as an indicator of suicide risk, the time interval from a preceding suicide attempt to the fatal one, and switching of suicide methods by those eventually completing suicide.

METHOD

The lifetime history of suicide attempts and the methods the victims (n = 1397) used were examined in a nationwide psychological autopsy study comprising all suicides in Finland within a 12-month research period in 1987-1988.

RESULTS

Overall, 56% of suicide victims were found to have died at their first suicide attempt, more males (62%) than females (38%). In 19% of males and 39% of females the victim had made a non-fatal attempt during the final year. Of the victims with previous attempts, 82% had used at least two different methods in their suicide attempts (the fatal included).

CONCLUSIONS

Most male and a substantial proportion of female suicides die in their first suicide attempt, a fact that necessitates early recognition of suicide risk, particularly among males. Recognition of periods of high suicide risk on the grounds of recent non-fatal suicide attempts is likely to be important for suicide prevention among females. Subjects completing suicide commonly switch from one suicide method to another, a finding that weakens but does not negate the credibility of restrictions on the availability of lethal methods as a preventive measure.

Reliability of statistics on violent death and suicide in the former USSR, 1970-1990

The stability of the relationship between trends of violent deaths as a whole, suicides and death from undetermined causes was assessed by quantitative methods for the whole former USSR in the years 1970-1990 and for each of the 15 republics in the former USSR for the years 1984-1990. Semi-structured interviews during 1989-1996 were performed with 12 professionals involved in the diagnosis and coding of causes of death in the Baltic states and Russia. The quantitative analyses showed that mortality data were reliable for the Slavic (Russia, the Ukraine and Belarus) and Baltic (Estonia, Latvia and Lithuania) republics, and also for Kazakhstan, Kirgizia and Moldova. The Central Asian and Caucasian republics showed greater variation in trends and ratios, indicating a need for further investigations of the reliability of suicide statistics in these regions. It emerged from the interviews that no instructions to falsify data were given. The only instructions given were to treat the data on suicide and murder as 'top secret'. None the less, certain classification errors might arise in the statistics. The diagnosis 'undetermined cause of death' was permissible only as a preliminary diagnosis for 14 days, and there was a risk of criticism for poor-quality work if too many deaths were classified as being due to undetermined causes. Misclassifications could also occur in cases where there was a wish to conceal murder. Negative attitudes towards suicide, especially in Muslim regions, where suicide is taboo, might also have contributed to under-reporting of suicide.

Suicide as an outcome for mental disorders. A meta-analysis

BACKGROUND

Mental disorders have a strong association with suicide. This meta-analysis, or statistical overview, of the literature gives an estimate of the suicide risk of the common mental disorders.

METHOD

We searched the medical literature to find reports on the mortality of mental disorders. English language reports were located on MEDLINE (1966-1993) with the search terms mental disorders', 'brain injury', 'eating disorders', 'epilepsy', 'suicide attempt', 'psychosurgery', with 'mortality' and 'follow-up studies', and from the reference lists of these reports. We abstracted 249 reports with two years or more follow-up and less than 10% loss of subjects, and compared observed numbers of suicides with those expected. A standardised mortality ratio (SMR) was calculated for each disorder.

RESULTS

Of 44 disorders considered, 36 have a significantly raised SMR for suicide, five have a raised SMR which fails to reach significance, one SMR is not raised and for two entries the SMR could not be calculated.

CONCLUSIONS

If these results can be generalised then virtually all mental disorders have an increased risk of suicide excepting mental retardation and dementia. The suicide risk is highest for functional and lowest for organic disorders with substance misuse disorders lying between. However, within these broad groupings the suicide risk varies widely.

Suicide in the 18 years after deliberate self-harm a prospective study

BACKGROUND

Clinical and demographic information on patients seen as a result of deliberate self-harm (DSH) was collected in an attempt to identify factors in the index episode of DSH predictive of subsequent suicide.

METHOD

Specific data were prospectively collected on all DSH patients who lived in Blacktown Municipality, Sydney, Australia, and seen from October 1975 to September 1976. Follow-up at 18 years was by evaluation of coroners records and identification of probable suicide.

RESULTS

Two hundred and twenty-three patients harmed themselves on one or more occasions. Follow-up at 18 years showed that 15 of the 223 (6.7%) had completed suicide. The proportion at five and eight years was 4.0% and at 10 years was 4.5%. Identified predictors of suicide were: narcotic overdose; more than one episode of DSH in the year of the study; planned episode; and mental illness. Teenage narcotic-abusing males were at greatest risk and in females a planned episode was the most powerful predictor.

CONCLUSIONS

Suicides continued to occur over 18 years. One of the striking differences between this and other studies is the finding of teenage male DSH, associated with narcotic abuse, as a strong predictor of subsequent suicide. These findings are particularly relevant to the issue of young male suicide, which increased from the 1970s onwards in Australia and elsewhere.

A 5-year follow-up study of suicide attempts

Seventy-five patients were admitted to the ward of the Lund Suicide Research Center following a suicide attempt. After 5 years, the patients were followed up by a personal semistructured interview covering sociodemographic, psychosocial and psychiatric areas. Ten patients (13%) had committed suicide during the follow-up period, the majority within 2 years. They tended to be older at the index attempt admission, and most of them had a mood disorder in comparison with the others. Two patients had died from somatic diseases. Forty-two patients were interviewed, of whom 17 (40%) had reattempted during the follow-up period, most of them within 3 years. Predictors for reattempt were young age, personality disorder, parents having received treatment for psychiatric disorder, and a poor social network. At the index attempt, none of the reattempters had diagnoses of adjustment disorders or anxiety disorders. At follow-up, reattempters had more psychiatric symptoms (SCL-90), and their overall functioning (GAF) was poor compared to those who did not reattempt. All of the reattempters had long-lasting treatment ( > 3 years) as compared to 56% of the others. It is of great clinical importance to focus on treatment strategies for the vulnerable subgroup of self-destructive reattempters.

Alcohol problems among suicide attempters in the Nordic countries

The purpose of this study was to see whether and how the number of suicide attempters with alcohol problems and their drinking habits differ between the Nordic areas under study. Problem-drinkers were defined as persons who themselves felt that they had an alcohol problem. The analyses were based on data collected at five Nordic research centers participating in the WHO/Euro Multicentre Study on Parasuicide, namely: Helsinki (Finland); Umeå and Stockholm (Sweden); Słr-Trłndelag (Norway); and Odense (Denmark). The results showed that the frequency of problem-drinking among suicide attempters differed markedly between the areas under study; the Finnish male and the Danish female suicide attempters included the highest proportions of self-identified problem-drinkers. The pattern of drinking among the suicide attempters also differed between the areas. The analyses indicate that the point when alcohol becomes a problem to somebody, especially to a degree that it increases the risk of suicidal behavior, not only depends on how much and how often the person drinks alcohol; the prevailing drinking pattern, the attitudes towards drinking alcohol, and the level of social control are also important factors to take into consideration when relations between alcohol and suicidal behavior are under study.

Male suicides and alcohol consumption in the former USSR

A significant decline (34.5%) in the suicide rate occurred in 1984-1988 throughout the USSR. The decline was observed shortly after the introduction of strict restrictions on the sale of alcohol. We tested the hypothesis that the restrictive alcohol policy in the first years of perestroika (June 1985) caused the fall in suicide rates in the former USSR. Data on alcohol consumption, violent death caused by external injury and poisoning (n = 916,315), death due to accidental alcohol poisoning (n = 77,837), suicide (n = 192,305) and death undetermined whether accidentally or purposely (n = 54,253) were analyzed for all former Soviet republics for 1984, 1986, 1988 and 1990. Men were chosen for the analysis, since men are more prone to abuse alcohol than women. Regression analysis with alcohol consumption as the independent variable and suicide rates and violent death rates as dependent variables shows that suicide and alcohol consumption were positively correlated as were violet death and alcohol consumption. In the republics with high alcohol consumption (Slavic and Baltic), suicide rates were also high. In the Caucasian republics, low alcohol consumption was associated with low suicide rates. For most republics, alcohol seems to explain more than 50% of suicides. Alcohol also has considerable explanatory value for violent death. Thus, a restrictive alcohol policy might be a way to reduce suicide and violent death.

Hormone levels and personality traits in abusive and suicidal male alcoholics

This study presents personality and biochemical correlates to abusive and suicidal behavior in 49 male alcoholics. Our hypothesis was that neuroendocrine and personality characteristics reflect a postulated regulatory mechanism that determines the direction of aggression either outward (abusive) or inward (suicidal). Eleven patients (22%) had physically abused someone on one occasion and 15 (31%) constituted a more violent subgroup with repeated instances of abuse. Thirteen (27%) had attempted suicide at least once. There was a significant positive correlation between the number of abusive and suicidal events (r = 0.33). The violent subgroup with repeated episodes of physical abuse had elevated levels of serum testosterone and low levels of cortisol when compared with the rest of the sample. Aggressive, antisocial, and impulsive personality traits were common. Suicidal alcoholics did not differ from the rest regarding hormone levels, but exhibited high impulsivity and muscular tension on the personality test. It is suggested that the high impulsivity without aggressive traits makes them exhibit autoagressive rather than abusive behavior. Both the abusive and suicidal alcoholics partly had a history typical of the type 2 alcoholic. We propose that these two categories constitute subgroups of the type 2 alcoholic determined by a combination of genetic predisposition to alcoholism, certain personality traits, and, with regard to the violent group, also hormone disturbances. We find it highly justified to identify and treat these subgroups because of their harmful acting-out behavior.

A follow-up study of attempted railway suicides

This paper reports the subsequent mortality of 94 persons who attempted suicide by jumping in front of London Underground trains between 1977 and 1979. The follow-up period was 10 yr. Despite the apparent seriousness of the method, completion of suicide was not found to be higher than in previous studies of attempted suicide by other methods. By the end of the follow-up period 18 persons had died, nine of natural causes. Coroners' inquests were held for the unnatural deaths. Seven verdicts of suicide and two of accidental death were recorded. Of the nine unnatural deaths four were from multiple injuries, three from drowning, one from asphyxia and one from acute narcotic poisoning. All four multiple injury deaths were women, three of these were from repeated incidents involving London Underground trains. The time interval between the index attempt and eventual death for the suicide/accident group ranged from 1 day to 43 months. For ethical reasons it was not possible to follow-up attempted suicides who were presumed to have remained alive.

Risk factors for completed suicide among adolescents with a lifetime history of substance abuse: a case-control study

The risk factors for suicide in adolescents with substance abuse were assessed by comparing 23 adolescent suicide victims and 12 community controls with a lifetime history of definite or probable DSM-III substance abuse. Suicide victims were more likely than controls to show the following risk factors: active substance abuse, comorbid major depression, suicidal ideation within the past week, family history of depression and substance abuse, legal problems and presence of a handgun in the home. Recommendations for the identification and prevention of suicide among substance-abusing youth on the basis of these findings are presented.

Mental illness and social integration among suicide attempters in Copenhagen. Comparison with the general population and a four-year follow-up study of 100 patients

In order to describe a population of suicide attempters in an affluent suburb of Copenhagen, 100 patients were interviewed, randomly chosen from a group of 246 patients referred to psychiatric consultation after a suicide attempt. The group consisted of 71 women and 29 men. Single status, abuse, and previous suicide attempts occurred frequently as did suicide among first-degree relatives. The most frequent reason for a suicide attempt was conflict with partners. In comparison with the normal population in the same catchment area, the patients were alone and felt lonely, but no difference was found in the group's relation to the labor market. After a four-year follow-up period, 9 persons had died by suicide. Borderline personality disorder and affective psychosis, no employment, 2 or more previous attempts, violent method and potential lethal attempt proved to be predictors of suicide later on. Alcohol and drug abuse, lack of social support and loneliness did not influence the risk.