The psychology of suicidal behaviour

Differences and similarities of risk factors for suicidal ideation and attempts among patients with depressive or bipolar disorders

BACKGROUND

Substantial literature exists on risk factors for suicidal behaviour. However, their comparative strength, independence and specificity for either suicidal ideation or suicide attempt(s) remain unclear.

METHODS

The Helsinki University Psychiatric Consortium (HUPC) Study surveyed 287 psychiatric care patients with ICD-10-DCR depressive or bipolar disorders about lifetime suicidal behaviour, developmental history and attachment style, personality and psychological traits, current and lifetime symptom profiles, and life events. Psychiatric records were used to confirm diagnosis and complement information on suicide attempts. Multinomial regression models predicting lifetime suicidal ideation and single or repeated suicide attempts were generated.

RESULTS

Overall, 21.6% patients had no lifetime suicidal behaviour, 33.8% had lifetime suicide ideation without attempts, and 17.1% had a single and 27.5% repeated suicide attempts. In univariate analyses, lifetime suicidal behaviour was associated with numerous factors. In multivariate models, suicidal ideation was independently predicted by younger age, severe depressive disorder, bipolar disorder type II/nos, hopelessness, and childhood physical abuse. Repeated suicide attempts were independently predicted by younger age, female sex, severe depressive disorder with or without psychotic symptoms, bipolar disorder type II/nos, alcohol use disorder, borderline personality disorder traits, and childhood physical abuse.

LIMITATIONS

Cross-sectional and retrospective study design, utilization of clinical diagnoses, and relatively low response rate.

CONCLUSIONS

Risk factors for suicidal ideation and attempts may diverge both qualitatively and in terms of dose response. When effects of risk factors from multiple domains are concurrently examined, proximal clinical characteristics remain the most robust. All risk factors cluster into the group of repeated attempters.

Suicidal Thoughts in the Novel Don Quixote

BACKGROUND

During the last century suicide has been medicalised. This restrictive view has been challenged, and the wisdom of experts from beyond medicine is being valued. Fictional literature is a source of information regarding the human experience.

OBJECTIVE

To extend our understanding of suicide and suicidal thinking by examining the early-17th Century Spanish novel, "Don Quixote".

METHOD

Various translations were examined for accounts of suicide, suicidal thinking, and associated behaviour.

RESULTS

There were no accounts of completed suicide. There was one statement indicating the belief that suicide could be triggered by mental disorder. There were five statements indicating that suicidal thinking could arise in situations of distress. Such distress arose from the actual/potential loss of a loved person, suffering by another person, and relentless sleep deprivation. There is one account of a person pretending to attempt suicide and achieving a self-inflicted wound, not with the intention to self-murder, but to impact the disposition of another person.

CONCLUSION

The observation that in early-17th Century Spain suicide was acknowledged as means of dealing with distress is consistent with findings from other periods, and the present day. This strengthens the position that suicide can occur in the absence of mental disorder.

Can We Use Neurocognition to Predict Repetition of Self-Harm, and Why Might This Be Clinically Useful? A Perspective

Over 800,000 people die by suicide each year globally, with non-fatal self-harm 20 times more common. With each episode of self-harm, the risks of future self-harm and suicide increase, as well as personal and healthcare costs. Therefore, early delineation of those at high risk of future self-harm is important. Historically, research has focused on clinical and demographic factors, but risk assessments based on these have low sensitivity to predict repetition. Various neurocognitive factors have been associated with self-harming behavior, but it is less certain if we can use these factors clinically (i) as risk markers to predict future self-harm and (ii) to become therapeutic targets for interventions. Recent systematic reviews and meta-analyses of behavioral tasks and fMRI studies point to an emerging hypothesis for neurocognition in self-harm: an underactive pre-frontal cortex is unable to respond appropriately to non-emotional stimuli, or inhibit a hyperactive emotionally-/threat-driven limbic system. However, there is almost no imaging data examining repetition of self-harm. Extrapolating from the non-repetition data, there may be several potential neurocognitive targets for interventions to prevent repeat self-harm: cognitive training; pharmacological regimes to promote non-emotional neurocognition; or other techniques, such as repetitive transcranial magnetic stimulation. Hence, there is an urgent need for imaging studies examining repetition and to test specific hypotheses. Until we investigate the functional neurocognitive basis underlying repetition of self-harm in a systematic manner using second-generational imaging techniques, we will be unable to inform third-generational imaging and potential future clinical applications.

Bereavement by suicide as a risk factor for suicide attempt: a cross-sectional national UK-wide study of 3432 young bereaved adults

OBJECTIVES

US and UK suicide prevention strategies suggest that bereavement by the suicide of a relative or friend is a risk factor for suicide. However, evidence is lacking that the risk exceeds that of any sudden bereavement, is specific to suicide, or applies to peer suicide. We conducted the first controlled UK-wide study to test the hypothesis that young adults bereaved by suicide have an increased risk of suicidal ideation and suicide attempt compared with young adults bereaved by other sudden deaths.

DESIGN

National cross-sectional study.

SETTING

Staff and students at 37 UK higher educational institutions in 2010.

PARTICIPANTS

3432 eligible respondents aged 18-40 exposed to sudden bereavement of a friend or relative after the age of 10.

EXPOSURES

Bereavement by suicide (n=614), by sudden unnatural causes (n=712) and by sudden natural causes (n=2106).

PRIMARY OUTCOME MEASURES

Incident suicidal ideation and suicide attempt.

FINDINGS

Adults bereaved by suicide had a higher probability of attempting suicide (adjusted OR (AOR)=1.65; 95% CI 1.12 to 2.42; p=0.012) than those bereaved by sudden natural causes. There was no such increased risk in adults bereaved by sudden unnatural causes. There were no group differences in probability of suicidal ideation. The effect of suicide bereavement was similar whether bereaved participants were blood-related to the deceased or not. The significant association between bereavement by suicide and suicide attempt became non-significant when adding perceived stigma (AOR=1.11; 95% CI 0.74 to 1.67; p=0.610). When compared with adults bereaved by sudden unnatural causes, those bereaved by suicide did not show significant differences in suicide attempt (AOR=1.48; 95% CI 0.94 to 2.33; p=0.089).

CONCLUSIONS

Bereavement by suicide is a specific risk factor for suicide attempt among young bereaved adults, whether related to the deceased or not. Suicide risk assessment of young adults should involve screening for a history of suicide in blood relatives, non-blood relatives and friends.

The exacerbating influence of hopelessness on other known risk factors for repeat self-harm and suicide

BACKGROUND

Hopelessness is frequently observed in people who harm themselves and is an established risk factor for nonfatal self-harm repetition and suicide. Little is known about how the presence of hopelessness in addition to other risk factors affects subsequent risk.

METHOD

Prospective cohort of 19,479 individuals presenting with self-harm to one of three English Emergency Departments between 1st January 2000 and 31st December 2010. Repeat self-harm and suicide deaths within twelve months of the first assessed episode were identified. Cox Proportional Hazards models were used to estimate Hazard Ratios (HRs) for risk factors with and without hopelessness.

RESULTS

A clinical impression of hopelessness was associated with increased risk of further self-harm (HR 1.35, 95% CI 1.16-1.58) and suicide (HR 2.56, CI 1.10-5.96) in the year following an index episode. For individuals who were living alone or homeless, unemployed, reported problems with housing, had received psychiatric treatment in the past, were currently receiving treatment or used alcohol during the self-harm episode, an exacerbation of an already elevated risk of repetition was observed amongst those who were assessed as hopeless. Where individuals presented with forensic problems, physical health problems or bereavement, an increase in risk was only observed for those who were also assessed as hopeless.

LIMITATIONS

A clinical impression of hopelessness was assigned using a binary "yes"/"no" classification rather than a validated scale.

CONCLUSIONS

Hopelessness intensifies the impact of several known risk factors for adverse outcomes following self-harm. These findings highlight the importance of identifying and therapeutically addressing this dynamic but potentially modifiable clinical risk factor during the psychosocial assessment and in subsequent care.

Suicide, Suicide Attempts, and Suicidal Ideation

Suicidal behavior is a leading cause of death and disability worldwide. Fortunately, recent developments in suicide theory and research promise to meaningfully advance knowledge and prevention. One key development is the ideation-to-action framework, which stipulates that (a) the development of suicidal ideation and (b) the progression from ideation to suicide attempts are distinct phenomena with distinct explanations and predictors. A second key development is a growing body of research distinguishing factors that predict ideation from those that predict suicide attempts. For example, it is becoming clear that depression, hopelessness, most mental disorders, and even impulsivity predict ideation, but these factors struggle to distinguish those who have attempted suicide from those who have only considered suicide. Means restriction is also emerging as a highly effective way to block progression from ideation to attempt. A third key development is the proliferation of theories of suicide that are positioned within the ideation-to-action framework. These include the interpersonal theory, the integrated motivational-volitional model, and the three-step theory. These perspectives can and should inform the next generation of suicide research and prevention.

Child abuse and the prevalence of suicide attempts among those reporting suicide ideation

OBJECTIVE

Victims of child abuse may be at increased risk of acting on suicide ideation, although this has not been empirically tested. We estimated the risk of suicide attempts associated with child abuse among individuals who reported suicide ideation.

METHODS

Secondary analysis of data from the population-based Canadian Community Health Survey Mental Health (n = 828). This population-based survey included various structured questionnaires, including the Composite International Diagnostic Interview to assess mental illness and suicidal thoughts and behaviours.

RESULTS

Approximately 80 % of those who attempted suicide had a history of child abuse. Poor mental health, financial difficulties, poor coping skills, and reporting a suicide plan were also associated with an increased prevalence of attempting suicide; adjusted for these factors, child abuse was associated with a 1.77-fold increased prevalence (95 % CI 0.93, 3.36) of suicide attempts.

CONCLUSIONS

Most individuals who attempt suicide experience child abuse, and worse health and social functioning. Adopting a life-course perspective to understand trajectories of suicide risk factors may inform prevention and treatment.

Cortisol levels and suicidal behavior: A meta-analysis

Suicide is a major cause of death worldwide, responsible for 1.5% of all mortality. The causes of suicidal behavior are not fully understood. Dysregulated hypothalamic-pituitary-adrenal (HPA) axis activity, as measured by cortisol levels, is one potential risk factor. This meta-analytic review aimed (i) to estimate the strength and variability of the association between naturally fluctuating cortisol levels and suicidal behavior and (ii) to identify moderators of this relationship. A systematic literature search identified 27 studies (N=2226; 779 suicide attempters and 1447 non-attempters) that met the study eligibility criteria from a total of 417 unique records initially examined. Estimates of effect sizes (r) obtained from these studies were analysed using Comprehensive Meta-Analysis. In these analyses, we compared participants identified as having a past history of suicide attempt(s) to those with no such history. Study quality, mean age of sample and percentage of male participants were examined as potential moderators. Overall, there was no significant effect of suicide group on cortisol. However, significant associations between cortisol and suicide attempts were observed as a function of age. In studies where the mean age of the sample was below 40 years the association was positive (i.e., higher cortisol was associated with suicide attempts; r=.234, p<.001), and where the mean age was 40 or above the association was negative (i.e., lower cortisol was associated with suicide attempts; r=-.129, p<.001). These findings confirm that HPA axis activity, as indicated by age-dependent variations in cortisol levels, is associated with suicidal behavior. The challenge for theory and clinical practice is to explain the complete reversal of the association with age and to identify its clinical implications.

Construct validity of a proposed new diagnostic entity: Acute Suicidal Affective Disturbance (ASAD)

BACKGROUND

The current study presents initial support for the construct validity of Acute Suicidal Affective Disturbance (ASAD), a clinical entity consisting of acute suicide risk and several related features.

METHODS

Participants (N=195) were university students who were recruited for a history of suicide attempt(s), history of suicidal ideation, or no history of suicide attempts or suicidal ideation. Participants completed study measures online.

RESULTS

Factor analytic results indicated a one factor solution for a lifetime measure of ASAD symptoms. The measure demonstrated strong convergent and divergent validity with common correlates of suicide-related outcomes and incremental predictive validity, as lifetime occurrence of ASAD symptoms predicted number of past suicide attempts above and beyond a host of suicide risk factors. Lifetime ASAD symptoms differed between those with multiple suicide attempts, those with a single attempt, and participants without a history of attempts, as well as between participants with a history of both suicidal ideation and attempts and those with a history of suicidal ideation but not suicide attempts.

LIMITATIONS

The cross-sectional research design limits the ability to infer causation between ASAD symptoms and suicidal behavior. Only past ASAD symptoms (not current symptoms) were measured.

CONCLUSIONS

ASAD appears to be a unified clinical entity that characterizes acute suicide risk which may assist clinicians in determining a client's potential for death by suicide.

Effect of hopelessness on the links between psychiatric symptoms and suicidality in a vulnerable population at risk of suicide

The aim of this study was to examine the impact of two risk factors working together on a measure of suicide probability in a highly vulnerable group who were male prisoners identified as being at risk of self harm. The first risk factor was psychiatric symptoms, including general psychiatric symptoms and symptoms of personality disorder. The second risk factor was psychological precursors of suicidal thoughts and behaviours which were defeat, entrapment, and hopelessness. Sixty-five male prisoners from a high secure prison in NW England, UK, were recruited, all of whom were considered at risk of suicide by prison staff. General psychiatric symptoms and symptoms of personality disorders predicted the probability of suicide. Hopelessness amplified the strength of the positive relationship between general psychiatric symptoms and suicide probability. These amplification effects acted most strongly on suicidal ideation as opposed to negative self evaluations or hostility. In contrast, defeat, entrapment and hopelessness did not affect the relationship between personality disorders and suicide probability. Clinical assessments of highly vulnerable individuals, as exemplified by prisoners, should include measures of a range of general psychiatric symptoms, together with measures of psychological components, in particular perceptions of hopelessness.

Risk Factors, Warning Signs, and Drivers of Suicide: What Are They, How Do They Differ, and Why Does It Matter?

Research investigating suicide attempts and deaths by suicide has yielded many specific risk factors and warning signs for future suicidal behaviors. Yet, even though these variables are each valuable for suicide prevention efforts, they may be limited in their applicability to clinical practice. The differences among risk factors, warning signs, and "drivers," which are person-specific variables that lead individuals to desire death by suicide, are highlighted. The scarce evidence on drivers is described and specific recommendations for conducting future drivers-focused research and targeting them in clinical practice are suggested.

Differentiating suicide attempters from suicide ideators using the Integrated Motivational-Volitional model of suicidal behaviour

BACKGROUND

Suicidal behaviour is a significant public health concern, yet little is known about the factors that enable or impede behavioural enactment (engaging in a suicide attempt).

AIMS

Drawing on the Integrated Motivational-Volitional (IMV) Model of Suicidal Behaviour (2011), this study examined the factors associated with having thoughts of suicide (ideation) versus those associated with suicide enaction (attempts). Within a multivariate context, it was predicted that the factors associated with ideation formation (motivational factors) would be distinct from those factors which governed behavioural enaction (volitional moderators).

METHOD

Healthy adults (N=1, 288) completed an anonymous self-report survey. Analyses compared three groups: suicide attempters (n=230), suicide ideators (n=583), and those without any suicide history (n=475).

RESULTS

Suicide attempters differed from suicide ideators on all volitional factors (fearlessness about death, impulsivity, and exposure to suicidal behaviour), with the exception of discomfort tolerance. Compared to ideators, attempters were more likely to have a family member and close friend who had self-injured or attempted suicide, and were more impulsive and fearless about death. Conversely, the two suicide groups did not differ on any of the variables (motivational factors) associated with the development of thoughts of death by suicide.

LIMITATIONS

This is a cross-sectional study based on self-report measures.

CONCLUSIONS

Further research efforts to distinguish between suicide ideators and suicide attempters is crucial to inform the development of intervention and treatment approaches.

Subclinical psychosis and suicidal behavior in England: Findings from the 2007 Adult Psychiatric Morbidity Survey

BACKGROUND

Psychotic disorders have been associated with suicidality but information on the association between subclinical psychosis and suicidality in the general adult population is scarce.

METHODS

Data from the 2007 Adult Psychiatric Morbidity Survey (n=7403) were analyzed. This was a nationally representative survey of the English adult household population (aged ≥16years). Five types of psychotic symptoms (hypomania, thought control, paranoia, strange experience, auditory hallucination) occurring in the past 12months were assessed with the Psychosis Screening Questionnaire. Participants with probable or definite psychosis were excluded. Logistic regression analysis was used to assess the association between psychotic symptoms and suicidal ideation and suicide attempt in the past 12months.

RESULTS

The prevalence of at least one psychotic symptom was 5.4%. After adjusting for potential confounders including mental disorders, each individual psychotic symptom was significantly associated with suicidal ideation with odds ratios (ORs) ranging from 3.22 to 4.20. With the exception of thought control, all symptoms were also associated with significantly higher odds for suicide attempt (ORs 3.95 to 10.23). Having at least one psychotic symptom was associated with ORs of 3.13 (95%CI 2.09-4.68) and 3.84 (95%CI 1.67-8.83) for suicidal ideation and suicide attempt respectively. In addition, a greater number of psychotic symptoms was associated with higher odds for suicidal ideation and suicide attempt.

CONCLUSIONS

Psychotic symptoms, regardless of the type, were independently associated with higher odds for suicidal ideation and suicide attempt. Assessment and management of suicide risk in individuals with psychotic symptoms may be important for suicide prevention.

Temperament and character personality profile and affective temperaments in self-poisoning nonlethal suicide attempters

Involvement of personality traits in susceptibility to suicidal behaviour has attracted considerable research interest over the past decades. This study was motivated by reports that emotionality may play a potentially confounding role in the association between the personality profile and suicidal behaviour. We assessed the association between personality traits, as measured using the Temperament and Character Inventory (TCI), and suicidal behaviour, while controlling for the effects of Affective Temperaments, measured using the Temperament Evaluation of the Memphis, Pisa, Paris and San Diego auto-questionnaire (TEMPS-A) in a sample of 140 consecutive self-poisoning nonlethal suicide (SNS) attempters admitted to the Emergency Toxicology Clinic, comparing them with a sample of 140 age and sex matched healthy controls. After controlling for Affective Temperaments, the temperament dimension of Novelty Seeking (NS) and the character dimensions of Self-directedness and Self-transcendence remained significantly associated with SNS attempts. NS, in particular, was most consistently and uniquely associated with suicidal behaviour. The present study conveys the difficulty in disentangling the personality profile of SNS attempters from their emotionality. We conclude that the risk associated with certain personality traits is often entirely mediated by Affective Temperaments and few dimensions independently contribute to the risk of self-poisoning nonlethal suicidal behaviour.

'Everything's from the inside out with PCOS': Exploring women's experiences of living with polycystic ovary syndrome and co-morbidities through Skype™ interviews

Polycystic ovary syndrome is an endocrine disorder affecting 1 in 10 women. Women with polycystic ovary syndrome can experience co-morbidities, including depressive symptoms. This research explores the experience of living with polycystic ovary syndrome and co-morbidities. Totally, 10 participants with polycystic ovary syndrome took part in Skype™ interviews and analysed using thematic analysis. Four themes emerged from the data: change (to life plans and changing nature of condition); support (healthcare professionals, education and relationships); co-morbidities (living with other conditions and depression, self-harm and suicidal ideation) and identity (feminine identity and us and them). The findings highlight the need for screening of women with polycystic ovary syndrome for depressive disorders.

Predicament suicide: an update

OBJECTIVE

We aim to outline the notion of predicament suicide and progress in the field.

CONCLUSION

The term predicament suicide was initially applied when the individual without mental disorder completed suicide to escape intolerable circumstances. Subsequently, painful untreated or unresponsive mental disorder was conceptualized as an internal predicament and the term was applied to all suicide. It continues to be used in both the restricted and broad forms. Our group has substantiated the restricted form by describing suicide in the setting of financial loss, forced marriage and other predicaments. The broad form gave rise to the Operationalized Predicaments of Suicide tool for use in quantitative research. Some literature from other workers supports the general thrust of the notion.

Suicidal ideation is associated with reduced prefrontal activation during a verbal fluency task in patients with major depressive disorder

BACKGROUND

Despite the known relationship between prefrontal function and increased suicidality during major depressive episodes, the links between prefrontal function and suicidality remain unclear in major depressive disorder (MDD). Suicidal ideation usually precedes a suicide attempt. If prefrontal cortex (PFC) activity is a biomarker for suicidal ideation in depression, monitoring it could be useful for suicide prevention. Therefore, in this study, we assessed the association between prefrontal function and suicidal ideation in MDD.

METHODS

Prefrontal function in 67 patients with MDD (31 with suicidal ideation and 36 without) and 67 age-, gender-, and intelligence quotient-matched healthy controls (HCs) was evaluated using near-infrared spectroscopy (NIRS) during a verbal fluency task (VFT). Suicidal ideation was assessed using item 3 of the Hamilton Depression Rating Scale (HAMD).

RESULTS

Regional hemodynamic changes were significantly smaller in patients with MDD than in HCs in prefrontal and temporal regions. Hemodynamic changes in the right dorsolateral PFC (DLPFC), orbitofrontal cortex (OFC), and right frontopolar cortex (FPC) regions in patients with MDD with suicidal ideation were significantly smaller than in those without suicidal ideation. In addition, hemodynamic changes correlated negatively with the severity of suicidal ideation in the DLPFC, OFC, and FPC in patients with MDD.

LIMITATIONS

Further studies with a larger sample size are required to verify our findings.

CONCLUSIONS

These results suggest that the DLPFC, OFC, and FPC are brain substrates of suicidal ideation in depressive states in patients with MDD, and that NIRS data can be employed as a clinically useful biomarker for the assessment of suicide risk.

Trait Gratitude and Suicidal Ideation and Behavior

Abstract. Background: Despite the progress of positive psychology, current knowledge regarding suicide protective factors is limited. Trait gratitude (a tendency to experience gratitude in daily life) may protect against suicidal ideation and behavior. Aims: The study tested a model of causal effects among gratitude, religiosity, reasons for living, coping, and social support as predictors of suicidal ideation, suicide threats, and suicide attempts after controlling for depression and stressful life events. Method: A sample of 165 college students were administered measures of gratitude, religiosity, reasons for living, social support, coping skills, stress, and depression. The study assessed lifetime and current suicidal ideation as well as lifetime suicide threat and attempt. Results: Both gratitude and religiosity, along with social support, coping skills, and reasons for living, correlated negatively with prior suicidal ideation, but not with prior attempted suicide. After controlling for risk factor (depression and stress), the impact of gratitude and religiosity was no longer statistically significant. Conclusion: Further research could help understand the role of positive emotions and human strengths, such as gratitude, in preventing and alleviating suicidal ideation and behavior.

Explaining the income and suicidality relationship: income rank is more strongly associated with suicidal thoughts and attempts than income

PURPOSE

Low income is an established risk factor for suicidal thoughts and attempts. This study aims to explore income within a social rank perspective, proposing that the relationship between income and suicidality is accounted for by the rank of that income within comparison groups.

METHODS

Participants (N = 5779) took part in the Adult Psychiatric Morbidity Survey across England. An income rank variable was created by ranking each individual's income within four comparison groups (sex by education, education by region, sex by region, and sex by education by region). Along with absolute income and demographic covariates, these variables were tested for associations with suicidal thoughts and attempts, both across the lifetime and in the past year.

RESULTS

Absolute income was associated with suicidal thoughts and attempts, both across the lifetime and in the past year. However, when income rank within the four comparison groups was regressed on lifetime suicidal thoughts and attempts, only income rank remained significant and therefore accounted for this relationship. A similar result was found for suicidal thoughts within the past year although the pattern was less clear for suicide attempts in the past year.

CONCLUSIONS

Social position, rather than absolute income, may be more important in understanding suicidal thoughts and attempts. This suggests that it may be psychosocial rather than material factors that explain the relationship between income and suicidal outcomes.

A qualitative investigation into the relationships between social factors and suicidal thoughts and acts experienced by people with a bipolar disorder diagnosis

BACKGROUND

The prevalence rate of completed suicide in bipolar disorder is estimated to be as high as 19%. Social factors or influences, such as stigmatisation and family conflict, contribute to the development of suicidal ideation in clinical and non-clinical populations. Yet, there is a lack of studies examining suicidality from a psychosocial perspective in people who experience bipolar disorder.

METHOD

Semi-structured interviews were used to collect qualitative data from 20 participants with bipolar disorder. The interview focused on the effects of social factors upon participants׳ experiences of suicidality (suicidal thoughts, feelings or behaviours). A thematic analysis was used to understand the data.

RESULTS

Social or interpersonal factors which participants identified as protective against suicidality included, 'the impact of suicide on others' and, 'reflecting on positive social experiences'. Social factors which triggered suicidal thoughts included, 'negative social experiences' and, 'not being understood or acknowledged'. Social factors which worsened suicidal thoughts or facilitated suicidal behaviour were, 'feeling burdensome,' and 'reinforcing negative self-appraisals'.

LIMITATIONS

Some participants had not experienced suicidal thoughts for many years and were recalling experiences which had taken place over ten years ago. The accuracy and reliability of these memories must therefore be taken into consideration when interpreting the results.

CONCLUSIONS

The themes help to enhance current understanding of the ways in which social factors affect suicidality in people who experience bipolar disorder. These results highlight the importance of considering the social context in which suicidality is experienced and incorporating strategies to buffer against the effects of negative social experiences in psychological interventions which target suicide risk in bipolar disorder.

Patterns of stressful life events: distinguishing suicide ideators from suicide attempters

BACKGROUND

Suicidal ideation is an important indicator for subsequent suicidal behaviour, yet only a proportion of ideators transit from thought to action. This has led to interest surrounding the factors that distinguish ideators who attempt from non-attempters. The study aimed to identify distinct classes of life event categories amongst a sample of ideators and assess the ability of the classes to predict the risk of a suicide attempt.

METHODS

A subsample of ideators was extracted based on responses to the suicidality section of the Adult Psychiatric Morbidity Survey (N=7403). Fifteen stressful life events (SLEs) were grouped into six broad categories.

RESULTS

Using Latent Class Analysis (LCA), three distinct classes emerged; class 1 had a high probability of encountering interpersonal conflict, class 2 reported a low probability of experiencing any of the SLE categories with the exception of minor life stressors, whereas class 3 had a high probability of endorsing multiple SLE categories. The Odds Ratio for attempted suicide were highest among members of Class 3.

LIMITATIONS

The use of broad event categories as opposed to discrete life events may have led to an underestimation of the true exposure to SLEs.

CONCLUSIONS

The findings suggest the experience of multiple types of SLEs may predict the risk of transitioning towards suicidal behaviour for those individuals who have contemplated suicide. In application, this re-emphasises the need for a routine appraisal of risk amongst this vulnerable group and an assessment of the variety of events which may signal the individuals who may be at immediate risk.

Suicidality in obsessive compulsive disorder (OCD): a systematic review and meta-analysis

Although a growing number of studies have examined the frequency of suicidal thoughts and behaviors in individuals with obsessive compulsive disorder (OCD), there is controversy about the frequency and burden of suicidality in OCD. This is the first systematic review aimed at examining the association between suicidality and OCD and at providing evidence about psychological mechanisms that may underlie suicidality in those with OCD. Five electronic bibliographic databases were searched up to April 2014: Medline, PsycINFO, Embase, Web of Science and CINAHL. Meta-analysis using random effects models was conducted. Forty-eight studies were included in the systematic review. The pooled effect size across 30 independent comparisons revealed a moderate to high, significant association between suicidality and OCD (Hedges' g=0.66, 95% confidence interval 0.49-0.82) which persisted across different types of suicidality including suicidal ideation and suicide attempts. Comorbid Axis I disorders, increased severity of comorbid depressive and anxiety symptoms, increased severity of obsessions, feelings of hopelessness and past history of suicide attempts were associated with worsening levels of suicidality in OCD. There was no indication for publication bias but the methodological quality of the studies was low. The theoretical, research and clinical implications of these findings are emphasized.

Health services, suicide, and self-harm: patient distress and system anxiety

Patients often become distressed in health settings, and provision of emotional support is a routine part of clinical care. However, in some situations, patient distress can become disturbing to both clinicians and patients, and can affect ordinary therapeutic engagement. We argue that health systems that support people presenting with suicidal acts and self-harm are particularly at risk of providing maladaptive responses, which we have termed dysregulation. If health systems become dysregulated, staff and patients might find it difficult to think clearly and respond adaptively. We describe some common characteristics of dysregulation, including negative feelings about patients, an inappropriately narrow focus on diagnosis and risk assessment, and ad-hoc, abrupt, and inconsistent decision making. These dysregulated responses might impair more adaptive responses such as containment of distress, safety planning, and negotiated responsibility with patients and carers. We discuss the main drivers of dysregulation and the implications for clinical practice in the management of self-harm and suicide risk.

Antecedents and sex/gender differences in youth suicidal behavior

Suicide is the second leading cause of death in youth globally; however, there is uncertainty about how best to intervene. Suicide rates are typically higher in males than females, while the converse is true for suicide attempts. We review this "gender paradox" in youth, and in particular, the age-dependency of these sex/gender differences and the developmental mechanisms that may explain them. Epidemiologic, genetic, neurodevelopmental and psychopathological research have identified suicidal behaviour risks arising from genetic vulnerabilities and sex/gender differences in early adverse environments, neurodevelopment, mental disorder and their complex interconnections. Further, evolving sex-/gender-defined social expectations and norms have been thought to influence suicide risk. In particular, how youth perceive and cope with threats and losses (including conforming to others' or one's own expectations of sex/gender identity) and adapt to pain (through substance use and help-seeking behaviours). Taken together, considering brain plasticity over the lifespan, these proposed antecedents to youth suicide highlight the importance of interventions that alter early environment(s) (e.g., childhood maltreatment) and/or one's ability to adapt to them. Further, such interventions may have more enduring protective effects, for the individual and for future generations, if implemented in youth.

Effects of mindfulness-based cognitive therapy on self-reported suicidal ideation: results from a randomised controlled trial in patients with residual depressive symptoms

INTRODUCTION

The aim of the present study was to investigate the effects of mindfulness-based cognitive therapy (MBCT) on suicidal ideation in an open-label randomised controlled trial of patients with residual depressive symptoms. Furthermore, this study aimed at examining whether an effect of MBCT on suicidal ideation was dependent on a reduction in depression severity, worry and rumination, or an increase in mindfulness.

METHODS

One hundred and thirty participants were randomised to a treatment arm (treatment as usual plus MBCT) or a wait list arm. Change in depression, change in worry, change in rumination and change in mindfulness were entered as covariates in a repeated measures ANOVA in order to assess to what degree MBCT-induced changes in suicidal ideation were independent from changes in these parameters.

RESULTS

There was a significant group×time (pre vs. post) interaction on suicidal ideation indicating a significant reduction of suicidal ideation in the MBCT group, but not in the control group. The interaction remained significant after addition of the above covariates. Change in worry was the only covariate associated with change in suicidal ideation, causing a moderate reduction in the interaction effect size.

CONCLUSIONS

The results suggest that MBCT may affect suicidal ideation in patients with residual depressive symptoms and that this effect may be mediated, in part, by participants' enhanced capacity to distance themselves from worrying thoughts.

Intrapersonal positive future thinking predicts repeat suicide attempts in hospital-treated suicide attempters

Objective: Although there is clear evidence that low levels of positive future thinking (anticipation of positive experiences in the future) and hopelessness are associated with suicide risk, the relationship between the content of positive future thinking and suicidal behavior has yet to be investigated. This is the first study to determine whether the positive future thinking–suicide attempt relationship varies as a function of the content of the thoughts and whether positive future thinking predicts suicide attempts over time. Method: A total of 388 patients hospitalized following a suicide attempt completed a range of clinical and psychological measures (depression, hopelessness, suicidal ideation, suicidal intent and positive future thinking). Fifteen months later, a nationally linked database was used to determine who had been hospitalized again after a suicide attempt. Results: During follow-up, 25.6% of linked participants were readmitted to hospital following a suicide attempt. In univariate logistic regression analyses, previous suicide attempts, suicidal ideation, hopelessness, and depression—as well as low levels of achievement, low levels of financial positive future thoughts, and high levels of intrapersonal (thoughts about the individual and no one else) positive future thoughts predicted repeat suicide attempts. However, only previous suicide attempts, suicidal ideation, and high levels of intrapersonal positive future thinking were significant predictors in multivariate analyses. Discussion: Positive future thinking has predictive utility over time; however, the content of the thinking affects the direction and strength of the positive future thinking–suicidal behavior relationship. Future research is required to understand the mechanisms that link high levels of intrapersonal positive future thinking to suicide risk and how intrapersonal thinking should be targeted in treatment interventions.

This study highlights the importance of positive future thinking as a predictor of future suicidal behavior. Clinicians ought to consider the content of positive future thinking, as not all types of positive future thinking are protective over time.

The neurobiology of suicide

The stress-diathesis model posits that suicide is the result of an interaction between state-dependent (environmental) stressors and a trait-like diathesis or susceptibility to suicidal behaviour, independent of psychiatric disorders. Findings from post-mortem studies of the brain and from genomic and in-vivo neuroimaging studies indicate a biological basis for this diathesis, indicating the importance of neurobiological screening and interventions, in addition to cognitive and mood interventions, in the prevention of suicide. Early-life adversity and epigenetic mechanisms might explain some of the link between suicide risk and brain circuitry and neurochemistry abnormalities. Results from a range of studies using diverse designs and post-mortem and in-vivo techniques show impairments of the serotonin neurotransmitter system and the hypothalamic-pituitary-adrenal axis stress-response system in the diathesis for suicidal behaviour. These impairments manifest as impaired cognitive control of mood, pessimism, reactive aggressive traits, impaired problem solving, over-reactivity to negative social signs, excessive emotional pain, and suicidal ideation, leading to suicidal behaviour. Biomarkers related to the diathesis might help to inform risk-assessment procedures and treatment choice in the prevention of suicide.