The relationship between entrapment and suicidal behavior through the lens of the integrated motivational-volitional model of suicidal behavior

Suicide and suicidal behavior are major public health concerns. As a result, a number of psychological models have been developed to better understand the emergence of suicidal ideation and suicide attempts. One such model is the integrated motivational–volitional model, a tri-partite model of suicidal behavior, which posits that entrapment is central to the final common pathway to suicide. In this review, we summarize the extant research evidence for the relationship between entrapment and suicidal ideation and behavior. Although there is robust evidence for the relationship between entrapment and suicidal ideation and behavior, there are gaps in our knowledge. We discuss the clinical implications and suggest key directions for future research

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

Distinguishing prisoners who think about suicide from those who attempt suicide

Background: Many people who consider suicide do not translate these intentions into action. Although prisoners constitute a particularly high-risk group for suicide, little is known about the factors that distinguish those who think about suicide from those who attempt suicide. Methods: Participants were 1326 adult offenders (1203 men) randomly selected from 15 Belgian prisons, representing 14% of the national prison population. Multivariate regression analysis compared prisoners who attempted suicide (n = 277) with those who thought about suicide but never made an attempt (n = 312) on a range of established risk factors. Results: Among the 589 participants reporting a lifetime history of suicidal ideation (44% of the total sample), almost half (47%) had made a suicide attempt. Relative to those who only thought about suicide, participants who attempted suicide were more likely to be violent offenders (aOR 2.33, 95% CI 1.49–3.62) and have a history of non-suicidal self-injury (aOR 3.19, 95% CI 2.09–4.86). The presence of self-reported mental disorder diagnosis (aOR = 2.84, 95% CI 1.91–4.24) and illicit substance abuse (aOR = 2.01, 95% CI 1.24–3.28) also independently differentiated prisoners who attempted v. considered suicide. Conclusion: This study provides preliminary evidence that behavioural and mental health factors are implicated in the transition from thoughts to acts of suicide in prisoners. Prospective studies are warranted to explore whether these risk factors predict progression from ideation to action over time

The development and evaluation of the paediatric index of emotional distress (PI-ED)

Purpose: Current measures of anxiety and depression for children and young people (CYP) include somatic symptoms and can be lengthy. They can inflate scores in cases where there is also physical illness, contain potentially distressing symptoms for some settings and be impractical in clinical practice. The present study aimed to develop and evaluate a new questionnaire, the paediatric index of emotional distress (PI-ED), to screen for emotional distress in CYP, modelled on the hospital anxiety and depression scale. Methods: A school-based sample (n = 1026) was employed to examine the PI-ED’s psychometric properties and a clinical sample of CYP (n = 143) was used to establish its sensitivity and specificity. Results: Exploratory and confirmatory factor analyses identified a bi-factor model with a general emotional distress factor (‘cothymia’) and anxiety and depression as co-factors. The PI-ED demonstrated good psychometric properties and clinical utility with a cutoff score of 20. Conclusion: The PI-ED is a brief, valid and reliable clinical screening tool for emotional distress in CYP

Identifying suicide risk factors in children is essential for developing effective prevention interventions

No abstract available

Natural environments and suicide mortality in the Netherlands: a cross-sectional, ecological study

Background: Natural outdoor environments, such as green spaces (ie, grass, forests, or parks), blue spaces (ie, visible bodies of fresh or salt water), and coastal proximity, have been increasingly shown to promote mental health. However, little is known about how and the extent to which these natural environments are associated with suicide mortality. Our aim was to investigate whether the availability of green space and blue space within people's living environments and living next to the coast are protective against suicide mortality. Methods: In this cross-sectional, ecological study, we analysed officially confirmed deaths by suicide between 2005 and 2014 per municipality in the Netherlands. We calculated indexes to measure the proportion of green space and blue space per municipality and the coastal proximity of each municipality using a geographical information system. We fitted Bayesian hierarchical Poisson regressions to assess associations between suicide risk, green space, blue space, and coastal proximity, adjusted for risk and protective factors. Findings: Municipalities with a large proportion of green space (relative risk 0·879, 95% credibility interval 0·779–0·991) or a moderate proportion of green space (0·919, 0·846–0·998) showed a reduced suicide risk compared with municipalities with less green space. Green space did not differ according to urbanicity in relation to suicide. Neither blue space nor coastal proximity was associated with suicide risk. The geographical variation in the residual relative suicide risk was substantial and the south of the Netherlands was at high risk. Interpretation: Our findings support the notion that exposure to natural environments, particularly to greenery, might have a role in reducing suicide mortality. If confirmed by future studies on an individual level, the consideration of environmental exposures might enrich suicide prevention programmes

Pain and self-harm: A systematic review

Background  A growing body of research has explored altered physical pain threshold and tolerance in non-suicidal self-injury (NSSI) and suicidal self-harm. The evidence, however, is inconsistent such that the nature of the relationship is unclear, and whether or not this effect is also present in suicidal self-harm is equivocal.  Methods  A keyword search of three major psychological and medical databases (PsycINFO, Medline and Web of Knowledge) was conducted, yielding 1,873 records. Following duplicate removal and screening, 25 articles were quality assessed, and included in the final systematic review.  Results  There is strong evidence for increased pain tolerance in NSSI, and some evidence for this in suicidal individuals, but notably, there were no prospective studies. The review found a lack of substantive focus on psychological correlates of altered pain tolerance in this population. Several candidate explanatory mechanisms were proposed within the reviewed studies.  Limitations  The current review was a narrative systematic review; methods used to assess pain were considered too heterogeneous to conduct a meta-analysis.  Conclusions  The evidence suggests that there is elevated pain tolerance among those who engage in NSSI. Future prospective research should determine if altered pain tolerance is a cause or a consequence of the behaviour. The identification of psychological correlates of increased pain tolerance is a neglected area of research. It could provide opportunities for treatment/intervention development, if mediating or moderating pathways can be identified. Too few studies have directly investigated candidate explanatory mechanisms to draw definitive conclusions

Social rank theory of depression: A systematic review of self-perceptions of social rank and their relationship with depressive symptoms and suicide risk

Background: Depression can be debilitating, as well as a risk factor for self-harm and suicide. Social rank theory (SRT) suggests depression stems from feelings of defeat and entrapment that ensue from experiencing oneself to be of lower rank than others. This study aims to review the literature investigating the relationship between self-perceptions of social rank and depressive symptoms or suicidal ideation/behaviour. Methods: A keyword search of three psychological and medical databases was completed (Psychinfo, Medline, Web of Knowledge). Studies were quality assessed using established criteria. Results: An initial 1290 records were identified. After application of inclusion and exclusion criteria, 70 remained measuring depressive symptoms (n = 68), self-harm (n = 3) and suicidal ideation (n = 3). The main measures assessing social rank were the social comparison scale (SCS; n = 32) and subjective social status (SSS, n = 32), with six additional papers including another measure of social rank. In univariate analyses, as perceptions of social rank decreased, depressive symptoms (and suicidal ideation/self-harm) increased. Multivariate analyses indicated that social rank may act as a psychosocial mechanism to explain the relationship between social factors (in particular socio-economic status) and depressive symptoms. Additionally, psychological variables, such as rumination or self-esteem, may mediate or moderate the relationship between social rank and depressive or suicidal symptoms. Limitations: Study quality was variable and 89% of studies were cross-sectional. Conclusions: Although more prospective research is required, this review highlights the importance of understanding an individual's perception of their social position compared to others as it may lead to an enhanced understanding of the aetiology of depressive disorders

An exploratory randomised trial of a simple, brief psychological intervention to reduce subsequent suicidal ideation and behaviour in patients admitted to hospital for self-harm.

Background Implementation intentions link triggers for self-harm with coping skills and appear to create an automatic tendency to invoke coping responses when faced with a triggering situation. Aims To test the effectiveness of implementation intentions in reducing suicidal ideation and behaviour in a high-risk group. Method Two hundred and twenty-six patients who had self-harmed were randomised to: (a) forming implementation intentions with a ‘volitional help sheet’; (b) self-generating implementation intentions without help; or (c) thinking about triggers and coping, but not forming implementation intentions. We measured self-reported suicidal ideation and behaviour, threats of suicide and likelihood of future suicide attempt at baseline and then again at the 3-month follow-up. Results All suicide-related outcome measures were significantly lower at follow-up among patients forming implementation intentions compared with those in the control condition (ds>0.35). The volitional help sheet resulted in fewer suicide threats (d = 0.59) and lowered the likelihood of future suicide attempts (d = 0.29) compared with patients who self-generated implementation intentions. Conclusions Implementation intention-based interventions, particularly when supported by a volitional help sheet, show promise in reducing future suicidal ideation and behaviour

Associations between experiences of disrupted attachments and suicidal thoughts and behaviours: an interpretative phenomenological analysis

Suicide is a major public health concern and itsaetiology is complex. Evidence suggests that experiences of early disrupted attachment relationships with parents and family members are associated with later experiences of suicidal thoughts and behaviours (STB). However, no study has investigated this relationship from an inductive, interpretative and idiographic perspective. Objective: This paper explores the role of interpersonal relationships in STB among nine individuals who have attempted suicide. Method: Semi-structured face-to-face interviews were analysed using an interpretative phenomenological analysis approach. Results and conclusion: Two inter-related master themes were identified: 1) ‘challenging relationships as catalysts for STB’; and 2) ‘positive relationships as buffers against STB’. Findings indicate that experiences of early disrupted parent-child attachments may contribute to vulnerability for STB by shaping participants' perceptions of intimate others and themselves (internal working models). These working models, along with other environmental factors and life events, may increase the risk of STB through perceptions of defeat, entrapment, perceived burdensomeness and thwarted belongingness. Results also suggest that being exposed to respectful, caring, unconditionally accepting, reciprocal, trusting, and non-judgemental intimate adult relationships increase resilience and is associated with recovery from past STB and a reduction of current suicide risk. The theoretical and clinical implications are discussed