Limitations of a single-item assessment of suicide attempt history: Implications for standardized suicide risk assessment

Antenatal anxiety symptoms outperform antenatal depression symptoms and suicidal ideation as a risk factor for postpartum suicidal ideation

BACKGROUND AND OBJECTIVES

Suicidal ideation (SI) during the postpartum phase is linked with suicide, a leading cause of death during this period. Antenatal depression and anxiety symptoms have both been linked with increased risk for postpartum SI. However, research aimed at examining the relative contributions of antenatal anxiety and depression symptoms towards postpartum SI remains nascent. In this study, we investigated the relative contribution of antenatal anxiety symptoms, depression symptoms, and SI towards postpartum SI.

DESIGN

These data are from a longitudinal study in which American mothers were assessed during pregnancy and again at six- to eight weeks postpartum.

METHODS

Data were analyzed using correlations and logistic regression models.

RESULTS

Antenatal anxiety symptoms and antenatal depression symptoms were significantly correlated with postpartum SI. Results from a logistic regression model indicated that antenatal anxiety symptoms (T1; OR = 1.185 [1.125, 1.245], p = .004), but not antenatal depression symptoms (T1; OR = 1.018 [0.943, 1.093], p = .812) or antenatal SI (T1; OR = 1.58 [0.11, 22.29], p = 0.73), were significantly associated with postpartum SI.

CONCLUSIONS

Antenatal anxiety symptoms, depression symptoms, and SI were positively associated with postpartum SI. When examined simultaneously, anxiety symptoms during the antenatal phase (but not depression symptoms or SI) predicted SI in the postpartum phase.

Facets of Suicidal Ideation

According to SAMHSA (2023), approximately 16,600,000 American adults and teens reported having serious thoughts of suicide in 2022. While suicide prevention has primarily focused on suicide deaths and attempts, we contend that suicidal ideation (SI) deserves more in-depth investigation and should be an essential intervention target on its own. In support of this point, we provide three examples of ways to improve specificity in understanding of SI through the study of controllability of SI, the language used to assess SI, and measuring SI in real time. We also consider qualitative work on the content of SI, its treatment, and definitional considerations. We thus call for an increased general focus on SI within research, clinical care, and policy.

Anger as a Correlate of and Longitudinal Risk Factor for Suicidal Ideation in Adolescents

Suicide a leading cause of death among adolescents and is nearly always preceded by suicidal ideation (SI). Concerningly, SI during adolescence is not uncommon, as it is reported by as much as 20% of American youth. As such, SI in adolescence has been the subject of substantial research. Literature points to anger in adolescence as a relatively strong correlate of SI. However, work is limited, focusing on cross-sectional associations between anger in adolescence and SI and conceptualizing anger as a broad construct, failing to investigate the many narrow facets that comprise it. We address these gaps by investigating anger in adolescence as a (1) cross-sectional and (2) prospective correlate of SI and (3) investigating broad versus narrow conceptualizations of anger in adolescence as they relate to SI. Among two samples (Study 1, nationally representative community-based youth, n = 1,729; Study 2, high-risk juvenile justice involved youth, n = 1,406), anger in adolescence was cross-sectionally related to SI. However, when controlling for SI at baseline, anger in adolescence was not a prospective risk factor for SI at follow-up, nine years later. Finally, narrow facets of anger (e.g., argumentative, defiant, irritable, resentful, spiteful) were not more closely related than broad conceptualizations of anger to SI. These findings indicate that while anger in adolescence is cross-sectionally associated with SI, it should not necessarily be viewed as a valid risk factor for development of SI over the course of nearly a decade. Further, findings did not elucidate any narrow facets of anger that are particularly linked with SI.

Altered emotion perception in insomnia, anxiety, depression, mania, psychotic experiences and schizotypal symptoms: a dataset

This data resource provides evidence concerning the prevalence of perceptual alterations of emotional faces amongst individuals experiencing symptoms of insomnia, anxiety, depression, mania, psychotic experiences, and schizotypal tendencies. More specifically, we explored the categorisation accuracy (whether the displayed emotion was correctly identified), misperception (which emotion an incorrect judgment was perceived to be), intensity (extent of the emotion signal strength) and emotional valence (the extent and direction of perceived affect) of six facial expressions of emotion from the Karolinska Directed Emotional Faces database. Complete data from N = 572 respondents are included. The dataset is available to other researchers and is provided on Figshare. Information concerning the data records, usage notes, code availability and technical validation are presented. Finally, we present demographic and correlational data concerning psychiatric symptoms and alterations in the perception of emotional faces.

Suicidal thoughts and attempts in a transdiagnostic eating disorder sample: Do diagnostic severity criteria predict risk?

OBJECTIVE

Eating disorders (EDs) are associated with elevated suicide. Low body mass index (BMI) and frequency of purging and binge eating represent severity criteria for EDs and distinguish full-threshold EDs from other specified feeding and eating disorders (OSFED). However, no work has taken a transdiagnostic approach to studying whether severity of these or other features is associated with suicidal ideation (SI) and attempts.

METHOD

We examined diagnostic status, ED features, and SI and attempts in a large, transdiagnostic, community sample of 257 women with EDs and 45 controls without a current or past ED in the United States using the EDs Examination interview and the Structured Clinical Interview for the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders).

RESULTS

SI and suicide attempts (SA) were elevated in OSFED compared to controls but did not differ between OSFED and full-threshold EDs. Higher BMI predicted increased SI. Number of purging methods, but not frequency, was related to history of SA. Binge episode frequency and size were not significant predictors.

CONCLUSIONS

OSFED presents with elevated SI and SA, and ED severity criteria that distinguish OSFED from full-threshold EDs do not predict SI or SA. Suicide risk assessments should be implemented universally across EDs in clinical practice.

Do people know how suicidal they will be? Understanding suicidal prospection

INTRODUCTION

Little research has been done on how people mentally simulate future suicidal thoughts and urges, a process we term suicidal prospection.

METHODS

Participants were 94 adults with recent suicidal thoughts. Participants completed a 42-day real-time monitoring study and then a follow-up survey 28 days later. Each night, participants provided predictions for the severity of their suicidal thoughts the next day and ratings of the severity of suicidal thoughts over the past day. We measured three aspects of suicidal prospection: predicted levels of desire to kill self, urge to kill self, and intent to kill self. We generated prediction errors by subtracting participants' predictions of the severity of their suicidal thoughts from their experienced severity.

RESULTS

Participants tended to overestimate (although the average magnitude was small and the modal error was zero) the severity of their future suicidal thoughts. The best fitting models suggested that participants used both their current suicidal thinking and previous predictions of their suicidal thinking to generate predictions of their future suicidal thinking. Finally, the average severity of predicted future suicidal thoughts predicted the number of days participants thought about suicide during the follow-up period.

CONCLUSIONS

This study highlights prospection as a psychological process to better understand suicidal thoughts and behaviors.

Assessment of suicidal thoughts and behaviors in adults: A systematic review of measure psychometric properties and implications for clinical and research utility

High-quality clinical care and research on suicidal thoughts and behaviors (STBs) depends on availability and implementation of reliable and valid measures of STBs. In contrast to studies examining STB risk factors, screening instruments, or treatment, little research has rigorously examined the content, characteristics, and psychometric properties of STB measures themselves. This systematic review (1) identified STB measures that conform to empirically supported definitions of STBs, and (2) identified peer-reviewed papers reporting on the psychometric properties of these measures in adults. Data on psychometric properties and other measure characteristics were extracted. A total of 21 eligible measures were identified in the first stage. In the second stage, 70 articles (with 79 independent samples) were included with psychometric data in adult samples for 19 measures. Although there was support for strong internal consistency and content validity across many measures, face validity and clinical utility concerns were prevalent. Few measures comprehensively assessed suicidal behaviors, and interview-based assessments tended to show the strongest psychometric properties and clinical utility. Findings are discussed in the context of recommendations for improving existing measures, including future research to increase utility and translatability across clinical settings, delivery methods, and diverse populations.

Concordance Between the Ask Suicide Screening Questions (ASQ) and Self-Injurious Thoughts and Behaviors Interview-Self Report (SITBI-SR) Among Autistic and Non-Autistic Adults

OBJECTIVE

This study sought to examine concordance between two commonly used measures of suicidal thoughts and behaviors: the Ask Suicide-Screening Questions (ASQ) and the Self-Injurious Thoughts and Behaviors Interview-Self Report (SITBI-SR). Agreement was operationalized as the presence past month suicidal ideation and lifetime suicide attempts. To explore the utilization of these tools among neurodiverse samples, we also examined the concordance across autistic and non-autistic adults.

METHODS

The sample consisted of 200 individuals recruited online. Half of the sample self-reported a diagnosis of autism. A series of Cohen's kappas and confidence intervals were computed to assess agreement between the ASQ and SITBI-SR. Cohen's kappa was computed separately for each set of comparisons for the autistic and non-autistic samples.

RESULTS

Past month suicidal ideation had a kappa of 0.61 (95%CI = 0.48-0.73). The kappa for lifetime suicide attempts was 0.86 (95%CI = 0.78-0.94). There were no significant differences in agreement between the two measures for autistic versus non-autistic individuals.

CONCLUSIONS

Current findings suggest that the ASQ and SITBI-SR have high concordance with one another. Given that the ASQ and the SITBI-SR are both validated in the general population and that concordance was high and not significantly different based on autism status, the current study provides preliminary evidence that the ASQ and the SITBI-SR function similarly for autistic individuals.HIGHLIGHTSPeople do not always respond consistently to different STB assessment methods.Findings suggest that the ASQ and SITBI-SR have high concordance with one another.Evidence provided that these measures function similarly for autistic individuals.

Associations among intimate partner violence, suicidal ideation, suicide behaviors, non-suicidal self-injury, and psychological well-being in Black American emerging adults

BACKGROUND

Suicidal ideation and behavior and non-suicidal self-injury (NSSI) among Black emerging adults is a major public health concern. Intimate partner violence (IPV) is a significant risk factor for suicidal ideation and behavior and NSSI, but there is little work examining the buffering effect of psychological well-being (PWB). The purpose of this study was to examine the associations between IPV, suicide ideation and behavior, and NSSI, and the moderating role of PWB on these associations.

METHOD

Secondary data analyses were conducted using a subsample of Black American emerging adults (N = 4694) from the National College Health Assessment.

RESULTS

IPV was associated with greater odds of suicide ideation, past-year suicide attempt, and NSSI. PWB was associated with lower odds of suicide ideation, past-year suicide attempt, and NSSI. PWB did not moderate the relationships between IPV and the outcomes.

CONCLUSIONS

IPV was a risk factor for suicidal ideation, suicide attempt, and NSSI among Black American emerging adults. PWB was associated with lower suicidal ideation and behavior and NSSI engagement, suggesting it can be a protective factor. Bolstering PWB in Black communities may be beneficial in intervention and prevention efforts.

Determining the MMPI-3 SUI scale's cross-sectional and prospective utility in suicide risk assessment

OBJECTIVE

In-depth suicide risk assessments are particularly important to long-term suicide prevention. Broadband measures of psychopathology, such as the Minnesota Multiphasic Personality Inventory (MMPI) instruments, assess suicide risk factors and various mental health comorbidities. With the recent release of the MMPI-3, the Suicidal/Death Ideation (SUI) scale underwent revisions to improve its construct validity and detection of suicide risk factors. Thus, we hypothesized the MMPI-3 SUI scale would demonstrate medium to large associations with suicidal experience and behaviors, future ideation, and interpersonal risk factors of suicide.

METHODS

A sample of 124 college students screened for elevated depressive symptoms completed a brief longitudinal study. Participants completed a baseline session including the MMPI-3 and criterion measures and three brief follow-ups every 2 weeks.

RESULTS

SUI scores were most robustly associated with increased risk for past suicidal ideation, planning, and perceived burdensomeness. Prospectively assessed suicidal ideation was also meaningfully associated with SUI. SUI scale elevations indicate an increased risk of suicide-related risk factors.

CONCLUSION

The MMPI-3 is a valuable tool to inform long-term suicide prevention for those experiencing elevated depressive symptoms as the SUI scale can assess past, current, and future suicide-related risk factors, including suicidal ideation and behaviors.

Suicidality in Veterinarians: Trends at Different Career Stages and a Test of the Interpersonal Theory of Suicide

OBJECTIVE

The aim of this study was to investigate sex differences in suicide ideation and attempt at different career stages and test hypotheses derived from the Interpersonal Theory of Suicide (IPTS) in a sample of veterinarians.

METHOD

The sample of currently practicing veterinarians used for this study (N = 10,319) was derived from a larger sample. Participants completed an online self-report questionnaire.

RESULTS

As predicted, women generally had a higher prevalence of suicide ideation and attempt across career stages, except men and women showed similar rates of suicide attempt after veterinary school. Contrary to hypotheses, no interaction effects between IPTS variables were observed. However, perceived burdensomeness, thwarted belongingness, and hopelessness exhibited the main effects of suicide ideation, and there were main effects of perceived burdensomeness and hopelessness on suicide attempt. Compared with perceived burdensomeness and thwarted belongingness, hopelessness had a relatively more robust relationship with suicide ideation. We also found a significant relationship between fearlessness about death and suicide attempt, but no relationship between self-reported pain tolerance and suicide attempt.

CONCLUSIONS

Some of our findings were consistent with the IPTS while others were not. Future research would benefit from a longitudinal examination of suicidality in veterinarians.

Predicting Lifetime Suicide Attempts in a Community Sample of Adolescents Using Machine Learning Algorithms

Suicide is a major global health concern and a prominent cause of death in adolescents. Previous research on suicide prediction has mainly focused on clinical or adult samples. To prevent suicides at an early stage, however, it is important to screen for risk factors in a community sample of adolescents. We compared the accuracy of logistic regressions, elastic net regressions, and gradient boosting machines in predicting suicide attempts by 17-year-olds in the Millennium Cohort Study (N = 7,347), combining a large set of self- and other-reported variables from different categories. Both machine learning algorithms outperformed logistic regressions and achieved similar balanced accuracies (.76 when using data 3 years before the self-reported lifetime suicide attempts and .85 when using data from the same measurement wave). We identified essential variables that should be considered when screening for suicidal behavior. Finally, we discuss the usefulness of complex machine learning models in suicide prediction.

Suicide Risk Screening Tools for Pediatric Patients: A Systematic Review of Test Accuracy

CONTEXT

Health care settings have increasingly adopted universal suicide risk screening tools into nonpsychiatric pediatric care; however, a systematic review examining the accuracy of these tools does not yet exist.

OBJECTIVE

Identify and review research on the test accuracy of suicide risk screening tools for pediatric patients in nonpsychiatric medical settings.

DATA SOURCES

PubMed and PsycINFO were searched to identify peer-reviewed articles published before March 23, 2023.

STUDY SELECTION

Articles that quantified the accuracy of a suicide risk screening tool (eg, sensitivity, specificity) in a nonpsychiatric medical setting (eg, primary care, specialty care, inpatient or surgical units, or the emergency department) were included.

DATA EXTRACTION

A total of 13 studies were included in this review. Screening tool psychometric properties and study risk of bias were evaluated.

RESULTS

Sensitivity among individual studies ranged from 50% to 100%, and specificity ranged from 58.8% to 96%. Methodological quality was relatively varied, and applicability concerns were low. When stratifying results by screening tool, the Ask Suicide-Screening Questions and Computerized Adaptive Screen for Suicidal Youth had the most robust evidence base.

LIMITATIONS

Because of considerable study heterogeneity, a meta-analytic approach was deemed inappropriate. This prevented us from statistically testing for differences between identified screening tools.

CONCLUSIONS

The Ask Suicide-Screening Questions and Computerized Adaptive Screen for Suicidal Youth exhibit satisfactory test accuracy and appear promising for integration into clinical practice. Although initial findings are promising, additional research targeted at examining the accuracy of screening tools among diverse populations is needed to ensure the equity of screening efforts.

Rapid screening for suicide risk: An algorithmic approach

INTRODUCTION

In the United States, primary medical care settings are the first accessed resource for both medical and behavioral health care. Thus, there is a clear need for accurate and efficient behavioral health screening in this setting, including routine surveillance screening for suicide risk. The Multidimensional Behavioral Health Screen (MBHS), a broadband but very brief screening tool developed specifically for primary care, has been updated to include an algorithm that classifies suicide risk based on the interpersonal-psychological theory of suicide, and associated interview and decision framework. This study aims to evaluate the predictive accuracy of the new MBHS 2.0 suicide risk algorithm, with actual risk determined by clinical suicide risk interview.

METHOD

Data were collected as part of a larger study that, overall, included 551 college student participants. Of these, 309 completed the MBHS 2.0 and the clinical suicide risk interview, the two measures reported here. The final participant count was 299 following the removal of incomplete or invalid cases. Predicted suicide risk as determined by the MBHS 2.0 (Low, Mild, At least Moderate) was compared to actual risk as determined by clinical interview (Low, Moderate, Severe, Extreme).

RESULTS

Utilizing chi-square analyses, data show a significant association between the predicted suicide risk category based on the MBHS 2.0 algorithm and the actual risk category based on the semi-structured clinical interview. Furthermore, classification analyses suggest that primary care providers will be able to confidently assess the suicide risk level for the majority of their patients when using the MBHS.

CONCLUSION

Findings suggest that the MBHS 2.0 can be an accurate and efficient tool for use by primary care providers in classifying suicide risk. Future research will be useful to evaluate the utility of the suicide risk algorithm among primary care populations.

Pain tolerance and threshold in suicide attempters: A systematic review and meta-analysis

It has been hypothesized that individuals less sensitive to pain could be at higher risk of suicide. However, data on pain sensitivity in suicide attempters (SA) obtained using experimental procedures are heterogeneous. The aim of this systematic review and meta-analysis was to investigate and compare pain tolerance and threshold in SA (patients with lifetime history of suicide attempt), non-attempters (psychiatric controls, PC), and healthy controls (HC). A random effects meta-analysis was used to estimate the standardized mean differences using data from 16 studies that compared physical pain tolerance and threshold in SA and PC or HC. Pain tolerance and threshold were not significantly different in SA and PC. However, pain tolerance, but not threshold, was higher in SA than HC. Our findings do not support the hypothesis of an altered pain perception related as a trait for suicidal vulnerability, but rather suggest altered pain perception related to psychiatric vulnerability.

Investigating the co-occurrence of marijuana use and prescription opioid misuse with multiple suicide attempts among adolescents with a history of suicidal ideation

This study investigated the co-occurrent association of marijuana use and prescription opioid misuse with multiple suicide attempts among adolescents with a history of suicidal ideation. Data came from the 2019 Youth Risk Behavior Survey. The sample was comprised of adolescents ages 14-18 who reported suicidal ideation during the past year (n = 2,562). Multinomial logistic regression was used to examine the co-occurring association of marijuana use and prescription opioid misuse with multiple suicide attempts. Of the 2,562 adolescents who experienced suicidal ideation, 19.2 % also attempted suicide multiple times during the past year and 19.0 % reported ever using marijuana and misusing prescription opioids, 8.8 % misused prescription opioids only, and 33.3 % used marijuana only. In the multivariate model, for adolescents who used marijuana and misused prescription opioid, the risk of attempting suicide once was 1.77 times higher (RRR = 1.77, 95 % CI = 1.22-2.59) and the risk of multiple suicide attempts was 3.23 times higher (RRR = 3.23, 95 % CI = 1.95-5.33) when compared to adolescents who had never used marijuana nor misused prescription opioid. The risk of multiple suicide attempts was greater for bisexual and racial/ethnic minority adolescents and adolescents who felt sad or hopeless. Interventions that prevent prescription opioid misuse among adolescents may be effective in mitigating suicide attempts.

Comparing asexual with heterosexual, bisexual, and gay/lesbian individuals in common mental health problems: A multivariate meta-analysis

We aimed to test whether asexual individuals were at increased risk of higher levels of depressive symptoms, self-harm attempts, and suicide attempts compared with heterosexual, bisexual, or gay/lesbian individuals using multivariate meta-analysis. Seventeen, five, and eight samples were included for depressive symptoms, self-harm attempts, and suicide attempts, respectively, reaching a total sample size of 125,675, 30,116, and 73,366, respectively. Asexual individuals reported higher levels of depressive symptoms than heterosexual individuals (Hedges' g = -0.44, 95%CI = [-0.61, -0.26]) but did not differ from heterosexual individuals in the risk of self-harm (odds ratio = 1.11, 95%CI = [0.88, 1.39]) and suicide attempts (odds ratio = 0.76, 95%CI = [0.56, 1.04]). Asexual individuals were at lower risk of self-harm and suicide attempts than bisexual and gay/lesbian individuals but did not differ from bisexual and gay/lesbian individuals in the levels of depressive symptoms. The greatest risk of higher levels of depressive symptoms was found in bisexual and asexual, followed by gay/lesbian individuals; the greatest risk of self-harm and suicide attempts was found in bisexual, followed by gay/lesbian individuals, and the lowest risk was found in asexual individuals. The magnitude of the disparities in the risk of poorer mental health among heterosexual, bisexual, gay/lesbian, and asexual individuals depended on the type of mental health outcomes.

Examining Blunted Initial Response to Reward and Recent Suicidal Ideation in Children and Adolescents Using Event-Related Potentials: Failure to Conceptually Replicate Across Two Independent Samples

A recent study by Tsypes and colleagues (2019) found that children with recent suicidal ideation had blunted neural reward processing, as measured by the reward positivity (RewP), compared to matched controls, and that this difference was driven by reduced neural responses to monetary loss, rather than to reward. Here, we aimed to conceptually replicate and extend these findings in two samples (n = 264, 27 with suicidal ideation; and n = 314, 49 with suicidal ideation at baseline) of children and adolescents (11 to 15 years and 8 to 15 years, respectively). Results from both samples showed no evidence that children and adolescents with suicidal ideation have abnormal reward or loss processing, nor that reward processing predicts suicidal ideation two years later. The results highlight the need for greater statistical power, as well as continued research examining the neural underpinnings of suicidal thoughts and behaviors.

Toward objective characterizations of suicide risk: A narrative review of laboratory-based cognitive and behavioral tasks

Although suicide is a leading cause of preventable death worldwide, current prevention efforts have failed to substantively mitigate suicide risk. Suicide research has traditionally relied on subjective reports that may not accurately differentiate those at high versus minimal risk. This narrative review supports the inclusion of objective task-based measures in suicide research to complement existing subjective batteries. The article: 1) outlines risk factors proposed by contemporary theories of suicide and highlights recent empirical findings supporting these theories; 2) discusses ongoing challenges associated with current risk assessment tools and their ability to accurately evaluate risk factors; and 3) analyzes objective laboratory measures that can be implemented alongside traditional measures to enhance the precision of risk assessment. To illustrate the potential of these methods to improve our understanding of suicide risk, the article reviews how acute stress responses in a laboratory setting can be modeled, given that stress is a major precipitant for suicidal behavior. More precise risk assessment strategies can emerge if objective measures are implemented in conjunction with traditional subjective measures.

Prevalence of anxiety, depression, mania, insomnia, stress, suicidal ideation, psychotic experiences, & loneliness in UK university students

Despite existing wellbeing services, university students remain particularly vulnerable to mental health difficulties. Therefore, this study was designed to provide a comprehensive assessment of the prevalence of psychiatric symptoms by using well validated scales with robust psychometric properties. More specifically, the current data provides crucial information concerning the prevalence of anxiety, depression, mania, insomnia, stress, suicidal ideation, psychotic experiences and loneliness amongst a sample of N = 1408 UK university students. A cross-sectional online questionnaire-based study was implemented. Online recruitment for this dataset began on September 17th, 2018, and ended on the 30th July 2019. Eight validated measures were used: Generalized Anxiety Disorder Scale; Patient Health Questionnaire; The Mood Disorder Questionnaire; The Sleep Condition Indicator; The Perceived Stress Scale; Suicidal Behaviours Questionnaire-Revised; The Prodromal Questionnaire 16 (PQ-16); and the University of California Loneliness Scale. The dataset is available to other researchers and is provided on figshare. Information concerning the data records, usage notes, code availability and technical validation are presented. Finally, we present demographic information concerning psychiatric symptom prevalence.

The predictive role of psychotic-like experiences in suicidal ideation among technical secondary school and college students during the COVID-19 pandemic

BACKGROUND

Previous research has shown the strong association between psychotic-like experiences (PLEs) and suicide. However, the predictive role of PLEs in suicidal ideation (SI) during the COVID-19 pandemic remains unclear.

AIMS

This study aimed to explore the association between PLEs before the pandemic and SI during the pandemic among late adolescents.

METHODS

A total of 938 technical secondary school and college students completed both waves of the online survey before and during the pandemic. PLEs were assessed through the 15-item Positive Subscale of the Community Assessment of Psychic Experiences. SI was evaluated by the frequency of SI during the pandemic.

RESULTS

In early stage of the pandemic, most students had low frequent SI, and only 3.3% students showed high frequent SI. Compared to the low frequent group, the high frequent group exhibited significantly higher levels of PLEs (p < 0.001) and scored lower in resilience (p = .001) and perceived social support (p = .008) across the two timepoints. PLEs were significantly associated with higher risk of high frequent SI (OR = 2.56, 95%: 1.07-6.13), while better resilience (OR: 0.93, 95% CI: 0.88-0.99) and stronger perceived social support (OR: 0.96, 95% CI: 0.93-0.99) appeared to be protective factors. No interactions were found among PLEs and other psychosocial and psychological factors.

CONCLUSIONS

PLEs may increase the risk of SI in early stage of the pandemic, while good resilience and adequate social support can help weaken the risk.

Targeting Perceived Burdensomeness to Reduce Suicide Risk

Perceived burdensomeness (PB), defined by an intractable perception of burdening others, often reflects a false mental calculation that one's death is worth more than one's life and has been supported as a significant risk factor for suicide. Because PB often reflects a distorted cognition, it may serve as a corrective and promising target for the intervention of suicide. More work on PB is needed in clinically severe and in military populations. Sixty-nine (Study 1) and 181 (Study 2) military participants at high baseline suicide risk engaged in interventions targeting constructs relating to PB. Baseline and follow-up measures (at 1, 6, 12, 18, and 24 months) of suicidal ideation were administered, and various statistical approaches-including repeated-measures ANOVA, mediation analyses, and correlating standardized residuals-explored whether suicidal ideation decreased specifically by way of PB. In addition to utilizing a larger sample size, Study 2 included an active PB-intervention arm (N = 181) and a control arm (N = 121), who received robust care as usual. In both studies, participants improved considerably regarding baseline to follow-up suicidal ideation. The results of Study 2 mirrored those of Study 1, corroborating a potential mediational role for PB in treatment-related improvements in suicidal ideation in military participants. Effect sizes ranged from .07-.25. Interventions tailored at decreasing levels of perceived burdensomeness may be uniquely and significantly effective in reducing suicidal thoughts.

Suicidal urges and attempted suicide at multiple time scales in borderline personality disorder

BACKGROUND

There is strong evidence for an enduring suicidal diathesis among individuals with a history of suicide attempts, particularly among people diagnosed with borderline personality disorder (BPD). However, the progression of suicidal crises among people predisposed to suicidal behavior remains poorly understood.

METHODS

Via multilevel structural equation modeling we tested the hypothesis that a history of attempted suicide predicts a stronger dynamic link between affect and impulsivity with suicidal ideation (i.e., suicidal urges) - both moment-to-moment and day-to-day. 153 patients diagnosed with BPD, 105 of whom had a history of medically serious suicide attempts completed a 21-day ecological momentary assessment protocol (17,926 total assessments).

RESULTS

Individuals with higher average levels of negative affect reported more suicidal thoughts. Moments characterized by more negative affect, hostility, impulsivity, and less positive affect were also characterized by elevated suicidal ideation. For hostility and positive affect, these significant links generalized to the daily level. At the same time, for negative affect and hostility the within-person coupling was stronger among attempters in comparison to non-attempters, and these effects did not significantly differ across timescales.

LIMITATIONS

Follow-up studies replicating our findings of the dysregulation-suicidality nexus in clinically more diverse samples are needed.

CONCLUSIONS

The diathesis for suicidal behavior manifests in tighter dynamic links between negative affect or hostility and suicidal ideation. Because these within-person links were amplified in attempters compared to non-attempters, differential coupling patterns may index potentially lethal processes that generalize beyond BPD reflecting distinct diathesis components.

Same-Sex Marriage and Common Mental Health Diagnoses: A Sibling Comparison and Adoption Approach

We aimed to test whether the association between same-sex marriage and common mental health diagnoses was explained by shared genetic and environmental familial influences using sibling comparison and adoption analyses. For the sibling comparison analysis, participants (1,177,712 men and 1,266,917 women) were individuals born in Sweden between 1932 and 1994 and had ever been recorded as married (in opposite-sex or same-sex marriages). For the adoption analysis, participants were 147,164 and 1,298 female-female full sibling and adoptive sibling pairs, respectively. Based on medical records, prescribed medication, and death certificates, depression, substance abuse, and suicide (completed and attempted) from age 18 years were identified. For both sexes, being in a same-sex marriage was associated with greater risk of depression, substance abuse, and suicide, compared with being in an opposite-sex marriage. Controlling for shared familial confounding reduced this difference by less than 20% in magnitude, but overall mental health disparities for individuals in same-sex marriages remained statistically significant. Among women, only the genetic correlation between same-sex marriage and depression was statistically significant (r = .33). Same-sex marriage, as a proxy for sexual orientation, was associated with increased risk of certain mental health diagnoses and shared familial confounding explained a small component of this association, depending on the diagnosis. The findings indicate that sexual orientation disparities in mental health outcomes may involve unmeasured factors, and a relatively small proportion should be considered that may be due to shared familial confounding relevant to both sexual orientation and psychopathology.

Adolescent suicidal behaviour in Namibia: a cross-sectional study of prevalence and correlates among 3,152 school learners aged 12-17 years

BACKGROUND

While adolescent suicidal behaviour (ideation, planning, and attempt) remains a global public health concern, available county-specific evidence on the phenomenon from African countries is relatively less than enough. The present study was conducted to estimate the 12-month prevalence and describe some of the associated factors of suicide behaviour among school-going adolescents aged 12-17 years old in Namibia.

METHODS

Participants (n = 4531) answered a self-administered anonymous questionnaire developed and validated for the nationally representative Namibia World Health Organization Global School-based Student Health Survey conducted in 2013. We applied univariate, bivariable, and multivariable statistical approaches to the data.

RESULTS

Of the 3,152 analytical sample, 20.2% (95% confidence interval [CI]: 18.3-22.2%) reported suicidal ideation, 25.2% (95% CI: 22.3-28.4%) engaged in suicide planning, and 24.5% (95% CI: 20.9-28.6%) attempted suicide during the previous 12 months. Of those who attempted suicide, 14.6% (95% CI: 12.5-16.9%) reported one-time suicide attempt, and 9.9% (95% CI: 8.1-12.1%) attempted suicide at least twice in the previous 12 months. The final adjusted multivariable models showed physical attack victimisation, bullying victimisation, loneliness, and parental intrusion of privacy as key factors associated with increased likelihood of suicidal ideation, planning, one-time suicide attempt, and repeated attempted suicide. Cannabis use showed the strongest association with increased relative risk of repeated attempted suicide.

CONCLUSION

The evidence highlights the importance of paying more attention to addressing the mental health needs (including those related to psychological and social wellness) of school-going adolescents in Namibia. While the current study suggests that further research is warranted to explicate the pathways to adolescent suicide in Namibia, identifying and understanding the correlates (at the individual-level, family-level, interpersonal-level, school context and the broader community context) of adolescent suicidal ideations and non-fatal suicidal behaviours are useful for intervention and prevention programmes.

Prospective Association of Unmet Mental Health Treatment Needs With Suicidal Behavior Among Combat-Deployed Soldiers

OBJECTIVE

Military personnel frequently report discontinuing or not pursuing psychiatric treatment despite perceiving a need for services. This study aimed to examine how unmet need for treatment or support among U.S. Army soldiers relates to future suicidal ideation (SI) or suicide attempt (SA).

METHODS

Mental health treatment need and help seeking in the past 12 months were evaluated for soldiers (N=4,645) who subsequently deployed to Afghanistan. Weighted logistic regression models were used to examine the prospective association of predeployment treatment needs with SI and SA during and after deployment, with adjustment for potential confounders.

RESULTS

Compared with soldiers without predeployment treatment needs, those who reported not seeking help despite needing it had increased risk for SI during deployment (adjusted OR [AOR]=1.73), past-30-day SI at 2-3 months postdeployment (AOR=2.08), past-30-day SI at 8-9 months postdeployment (AOR=2.01), and SA through 8-9 months postdeployment (AOR=3.65). Soldiers who sought help and stopped treatment without improvement had elevated SI risk at 2-3 months postdeployment (AOR=2.35). Those who sought help and stopped after improving did not have increased SI risk during or 2-3 months after deployment but had elevated risks for SI (AOR=1.71) and SA (AOR=3.43) by 8-9 months postdeployment. Risks for all suicidality outcomes were also elevated among soldiers who reported receiving ongoing treatment before deployment.

CONCLUSIONS

Unmet or ongoing needs for mental health treatment or support before deployment are associated with increased risk for suicidal behavior during and after deployment. Detecting and addressing treatment needs among soldiers before deployment may help prevent suicidality during deployment and reintegration periods.

Differences in Guilt, Shame, Self-Anger, and Suicide Cognitions Based on Recent Suicide Ideation and Lifetime Suicide Attempt History

ABSTRACT

Suicide risk factors such as hopelessness and psychiatric disorders can predict suicide ideation (SI) but cannot distinguish between those with SI and those who attempt suicide (SA). The fluid vulnerability theory of suicide posits that a person's activation of the suicidal mode is predicated on one's predisposition, triggers, and baseline/acute risks. This study compared guilt, shame, self-anger, and suicidal beliefs based on recent SI and lifetime SA. In a total of 2222 primary care patients in this cross-sectional, observational study reported no recent SI or lifetime SA (SI-SA-), 161 reported recent SI only (SI-SA+), 145 reported lifetime SA only (SI+SA-), and 56 reported both recent SI and lifetime SA (SI+SA+). Kruskal-Wallis test showed that the four risk factors were the highest for SI+SA+, followed by SI+SA-, then SI-SA+, and lastly SI-SA-. The study shows that risk factors may be worse in those with recent SI than those with SA history.

For Better or Worse?: The role of cognitive flexibility in the association between nonsuicidal self-injury and suicide attempt

Nonsuicidal self-injury (NSSI) has been repeatedly associated with increased suicide risk. However, the transition from NSSI to suicidal thoughts and behaviors still remains as an enigma. One possible construct that may influence this relationship is cognitive flexibility, which refers to the ability to adapt responses/strategies based on environmental feedback. It may be that greater cognitive flexibility increases one's cognitive accessibility to suicide, making it a more viable option upon distress especially for those with a prior history of NSSI. Conversely, it may be that less cognitive flexibility creates a negative bias that exacerbates the effects of NSSI on suicide. Thus, in this study, we examined how NSSI characteristics (i.e., frequency and methods) interact with cognitive flexibility to predict lifetime suicide attempt (SA) history. Participants were 505 individuals with a lifetime history of NSSI who completed a survey assessing for their NSSI experiences, cognitive flexibility, and SA history. Moderation analyses were conducted while controlling for sexual orientation, which significantly predicted SA history. Results indicated a significant interaction between number of NSSI methods endorsed and cognitive flexibility. In particular, individuals were more likely to have had a history of SA if they scored higher on the alternative subscale of cognitive flexibility. The results suggest that the adaptive value of cognitive flexibility may be context dependent, and highlight the importance of personalized care among those who engage in self-harm.

Moderating role of coping in the association between minority stress and suicidal ideation and suicide attempts among sexual and gender minority young adults

OBJECTIVE

This study examined associations of minority stressors (i.e., victimization, internalized homonegativity, and stigma consciousness), and coping styles (i.e., active, avoidant, and passive) with suicidal ideation and suicide attempts (suicidality) among sexual and gender minority (SGM) young adults, and whether coping style moderated these associations.

METHODS

Logistic regression analyses examined these associations among 1432 SGM young adults (ages 18-29).

RESULTS

Minority stressors and passive coping were associated with a higher likelihood of suicidality. Avoidant coping was associated with a lower likelihood of lifetime suicidal ideation and attempts among sexual minority participants, and active coping with a lower likelihood of past-year suicidal ideation among sexual minority participants. Moderation analyses among sexual minority participants showed that when avoidant coping was high, associations between low victimization (compared with no victimization) and lifetime suicide attempts, and stigma consciousness and lifetime suicide attempts became non-significant, and the association between internalized homonegativity and lifetime suicide attempts became significant. Among gender minority participants, when passive coping was high the association between low victimization and lifetime suicidal ideation became significant.

CONCLUSION

This study underlines the importance of minority stress and coping for suicidality among SGM young adults and the need for more research regarding the role of coping.

The classification of suicide gestures: Examining the validity, measurement, and level of intent of a controversial construct

INTRODUCTION

The inclusion of suicide gestures in modern nomenclatures for self-injurious thoughts and behaviors (SITB) is contentious due to their history of pejorative connotations and inconsistent operationalization and measurement. Here we sought to investigate the extent to which participants who endorse this behavior on a standardized SITB measure: (1) describe their behavior in a way that is consistent with contemporary definitions for suicide gestures; (2) accurately classify their behavior when presented with multiple SITB response options; and (3) consistently report their level of intent to die across survey items.

METHODS

Participants were 83 adults from a community-based sample who endorsed lifetime suicide gesture(s) in an online survey containing self-report measures assessing their prior SITB engagement, followed by open-ended questions eliciting narrative descriptions of their behaviors.

RESULTS

Approximately 13% of participants who endorsed lifetime suicide gestures provided narrative descriptions that met criteria for the behavior, and around one-third consistently reported zero intent to die in their explicit ratings. Additionally, some participants reported non-zero intent to die from behaviors without direct potential for physical injury.

CONCLUSIONS

Overall, this study highlights substantial issues with the validity of current approaches to measuring suicide gestures. Implications for the classification of suicide gestures in clinical and research settings are discussed.

Perceived racial discrimination and suicidal behaviors among racial and ethnic minority adolescents in the United States: Findings from the 2021 adolescent behaviors and experiences survey

The objectives of this study were to investigate: (1) the prevalence of perceived racial discrimination (PRD) in school, among racial/ethnic minority adolescents, and (2) the association between PRD and suicidal behaviors among racial/ethnic minority adolescents in the United States. Data from a sample of 3241 racial/ethnic minority adolescents (53.7% female) from the 2021 Adolescent Behaviors and Experiences Survey were analyzed using binary logistic regression. Controlling for other factors, racial/ethnic minority adolescents who experienced PRD had 1.57 times higher odds of experiencing suicidal ideation (adjusted odds ratio (AOR) = 1.57, 95% Confidence Intervals (CI) = 1.09-2.25), 1.64 times higher odds of making a suicide plan (AOR = 1.64, 95% CI = 1.09-2.49), and 1.67 times higher odds of attempting suicide (AOR = 1.67, 95% CI = 1.04-2.68) during the past year. Other factors associated with suicidal behaviors included self-identifying as lesbian/gay, bisexual, or other/questioning; experiencing cyberbullying; feeling sad or hopeless; and poor mental health during the pandemic. The findings of this study extend past research and demonstrate that racial/ethnic minority adolescents who experienced PRD were more likely to report suicidal behaviors over and above other well-established risk factors for suicidal behaviors. Future studies that employ longitudinal designs are needed to elucidate mechanisms underlying these associations.

Genetics and epigenetics of self-injurious thoughts and behaviors: Systematic review of the suicide literature and methodological considerations

Suicide is a multifaceted and poorly understood clinical outcome, and there is an urgent need to advance research on its phenomenology and etiology. Epidemiological studies have demonstrated that suicidal behavior is heritable, suggesting that genetic and epigenetic information may serve as biomarkers for suicide risk. Here we systematically review the literature on genetic and epigenetic alterations observed in phenotypes across the full range of self-injurious thoughts and behaviors (SITB). We included 577 studies focused on genome-wide and epigenome-wide associations, candidate genes (SNP and methylation), noncoding RNAs, and histones. Convergence of specific genes is limited across units of analysis, although pathway-based analyses do indicate nervous system development and function and immunity/inflammation as potential underlying mechanisms of SITB. We provide suggestions for future work on the genetic and epigenetic correlates of SITB with a specific focus on measurement issues.

Toward an integrative model of transdiagnostic risk factors and suicide: A network comparison of psychiatric outpatients

Predictive models using traditional statistical methods have largely failed to describe suicide etiology. Network theory, which conceptualizes factors as mutually interacting, reinforcing elements of a complex outcome, can model relationships between transdiagnostic and neurocognitive vulnerability factors. The present study used a network approach to produce an atheoretical model of psychological factors and their interrelationships within a population of ideators and non-ideators. We developed two network models (i.e., suicidal ideators and psychiatric controls) describing the relationships between a diverse set of risk factors and symptom measures for a population of psychiatric outpatients. We compared networks using three measures of network structure (i.e., network structure invariance, global strength invariance, edge invariance) and described the differences. Network structures for ideators (N = 229) and non-ideators (N = 454) were stable and accurate. In non-ideators, cognitive-affective depression symptoms (Expected Influence [EI]: 2.06), trauma avoidance (EI: 1.08), and negative affect (EI: 0.81) were most influential to the psychological network. In ideators, cognitive-affective depression symptoms (EI: 1.77), intolerance of uncertainty-negative self-referent implications (EI: 1.29), and negative affect (EI: 1.19) were most influential. Invariance testing did not indicate significant differences in overall network structure between ideators and non-ideators (p = .111), but did indicate significant differences in node strength (p = .013). Significant differences in node EI were detected for intolerance of uncertainty-negative self-referent implications, anxiety sensitivity physical concerns, thwarted belongingness, worry, and negative affect. These findings indicated differences in network structures for suicidal psychiatric outpatients and provide crucial directions for future research on therapeutic targets for suicidal thoughts and behaviors.

Non-response to questions about suicide ideation and attempts among veterans: Results from the National Health and Resilience in Veterans Study

OBJECTIVES

Veterans who decline to provide information on their history of self-injurious thoughts and behaviors (SITBs) may be at elevated suicide risk. We examined associations between non-response to a question assessing lifetime SITBs and proxy variables of suicide risk.

METHODS

In this population-based cross-sectional study of 4069 US veterans, responses to the Suicidal Behaviors Questionnaire-Revised were examined to group veterans into one of three categories: (1) denied lifetime SITBs, (2) reported lifetime SITBs, or (3) declined to respond.

RESULTS

Overall, 69.5% of veterans denied a SITB history, 29.5% reported a SITB history, and 1.0% declined to provide information regarding SITBs. In adjusted analyses, veterans who declined to provide information on SITBs were significantly more likely than veterans who explicitly denied lifetime SITBs to screen positive for posttraumatic stress disorder; report lifetime non-suicidal self-injury; and report elevated levels of total trauma burden, externalizing behaviors, loneliness, received social support, and provided social support. Across these constructs, veterans who declined to provide SITB information were statistically indistinguishable from veterans who explicitly reported lifetime SITBs.

CONCLUSIONS

Veterans who decline to provide information about suicidal thoughts and behaviors may represent a covert group at elevated risk for suicide.

Examining Factors Influencing the Differential Reporting of Suicide Attempt History Among Undergraduates at Elevated Suicide Risk

AIM

Prior studies suggest that individuals may respond inconsistently to different assessments of suicide attempt (SA) history; yet, little is known regarding why inconsistent reporting of SA history may occur. The overarching goal of this study was to examine individuals' self-reported reasons for inconsistently responding to different self-report measures designed to assess SA history.

METHODS

Young adults who reported a lifetime history of suicidal ideation (N = 141) completed three different self-report measures of SA history: the (1) Beck Scale for Suicide Ideation (BSS), (2) Suicidal Behaviors Questionnaire-Revised (SBQ-R), and (3) Self-Injurious Thoughts and Behaviors Interview-Short Form (SITBI-SF). All measures were administered in a randomized order to control for potential order effects. Descriptive statistics were used to test study aims.

RESULTS

Of the sample, 75% of participants denied an SA history across all three measures, 16% reported an SA history across all measures ("consistent responders"), and 9% responded inconsistently to SA history measures ("inconsistent responders"). Of the 9% (n = 12) of participants who inconsistently responded to SA history measures, the most commonly reported reasons for inconsistent reporting were that the definition of the term "attempt" was not made clear and that the participant did not read the SA history probes carefully.

CONCLUSION

Findings from this study underscore a need for increased efforts to improve SA history assessments.HIGHLIGHTSSome individuals may provide inconsistent responses across different suicide attempt measures.Confusion about the definition of a "suicide attempt" may lead to inconsistent responding.Further research is needed to improve our assessment of suicide attempt history.

The Role of Hope and Resilience in Protecting Against Suicidal thoughts and Behaviors During the COVID-19 Pandemic

OBJECTIVE

The COVID-19 pandemic has impacted the mental health and wellbeing of populations across the world. This study aimed to examine: (1) which specific aspects of the COVID-19 pandemic were associated with the presence of suicidal thoughts and behaviors, and (2) the extent to which participants' hopelessness and resilience moderated the relationship between COVID-19 related stress and suicidal thoughts and behaviors.

METHOD

We administered an online survey to 12,989 adult (16+) participants across Wales from the 9th June to the 13th July 2020. Participants completed a series of questionnaires measuring the stressors they had experienced during the COVID-19 pandemic, their levels of hopelessness over the past two weeks, their levels of resilience, and whether they had experienced suicidal thoughts or behaviors since the onset of the COVID-19 pandemic.

RESULTS

Our findings revealed that: (1) food insecurity, domestic abuse, relationship problems, redundancy, social isolation and financial problems were the COVID-19 related stressors most strongly associated with suicidal thoughts and behaviors, and (2) that both hopelessness and resilience moderated the relationship between COVID-19 stress and suicidal thoughts, such that the relationship between COVID-19 stress and the presence of suicidal thoughts was much stronger for individuals with high hopelessness and low resilience.

CONCLUSIONS

These results highlight the aspects of the COVID-19 pandemic that are closely related to suicidal thoughts and behaviors and demonstrate the important role that hope for the future and resilience play in protecting individuals against the negative effects of the COVID-19 pandemic.HighlightsStressors caused by the pandemic are linked to increased suicidal thoughts.Hope protects individuals against the negative impact of the COVID-19 pandemic.Resilience also protects people from the negative impact of the COVID-19 pandemic.

Biased reporting of past self-injurious thoughts and behaviors: A literature review

BACKGROUND

Accurate assessment of suicide risk is critical for clinical practice, empirical advances, and informing public policy. In this narrative review of the literature, we compiled evidence from longitudinal studies that identify reporting bias of past self-injurious thoughts and behaviors (SITB) and examined possible correlates of inconsistent reporting.

METHOD

We conducted an extensive literature search, including 19 longitudinal samples or subsamples who reported the presence of current or past SITB at an initial but not at a subsequent assessment (yes/no inconsistent reports).

RESULTS

The median was 33%, and the weighted mean was 39% (95% CI, 37%-41%) for the prevalence of inconsistent reporting of SITB across the longitudinal samples. Importantly, inconsistent reports were linked with less internalizing psychopathology and more adaptive functioning. The type of sample recruited and assessment interval may also be relevant factors to consider.

LIMITATIONS

Variability of sample characteristics and methodology made it challenging to draw firm conclusions across studies but provide information about critical sources of bias.

CONCLUSIONS

Results suggest considerable caution for clinical, empirical, and policy decision-making based on lifetime reports of suicide and encourage a continued consideration for identifying potential reporting biases for SITB.

Adolescent suicide attempts in the United States: When suicide ideation and suicide capability interact

INTRODUCTION

Guided by the interpersonal theory of suicide, this study examined whether the relationship between level of suicide ideation and attempted suicide varies as a function of suicide capability.

METHODS

Cross-sectional data were obtained from the 2017 and 2019 Youth Risk Behavior Survey in which 28,442 respondents were sampled. Confirmatory factor analysis was conducted to create a latent suicide capability variable. Structural equation modeling was used to test the moderating effects of suicide capability on the relationship between level of suicide ideation and attempted suicide, adjusting for sociodemographic characteristics, sadness/hopelessness, and the sampling design.

RESULTS

Compared to adolescent with no reported ideation, those reporting single and dual ideation experienced increased odds of attempted suicide. The relationship between level of suicide ideation and attempted suicide significantly varied as a function of capability. While adolescents with dual suicide ideation experienced higher rates of attempted suicide at increasing levels of capability, faster rates of change of attempted suicide at increasing levels of capability were observed among those with single and no reported ideation.

CONCLUSION

Capability may heighten the risk of suicide attempts among youth, suggesting that treatment efforts could be directed at reducing exposure to painful and provocative experiences associated with suicide behaviors.

Peripheral and neural correlates of self-harm in children and adolescents: a scoping review

BACKGROUND

Self-harm in children and adolescents is difficult to treat. Peripheral and neural correlates of self-harm could lead to biomarkers to guide precision care. We therefore conducted a scoping review of research on peripheral and neural correlates of self-harm in this age group.

METHODS

PubMed and Embase databases were searched from January 1980-May 2020, seeking English language peer-reviewed studies about peripheral and neural correlates of self-harm, defined as completed suicide, suicide attempts, suicidal ideation, or non-suicidal self-injury (NSSI) in subjects, birth to 19 years of age. Studies were excluded if only investigating self-harm in persons with intellectual or developmental disability syndromes. A blinded multi-stage assessment process by pairs of co-authors selected final studies for review. Risk of bias estimates were done on final studies.

RESULTS

We screened 5537 unduplicated abstracts, leading to the identification of 79 eligible studies in 76 papers. Of these, 48 investigated peripheral correlates and 31 examined neural correlates. Suicidality was the focus in 2/3 of the studies, with NSSI and any type of self-harm (subjects recruited with suicidality, NSSI, or both) investigated in the remaining studies. All studies used observational designs (primarily case-control), most used convenience samples of adolescent patients which were predominately female and half of which were recruited based on a disorder. Over a quarter of the specific correlates were investigated with only one study. Inter-study agreement on findings from specific correlates with more than one study was often low. Estimates of Good for risk of bias were assigned to 37% of the studies and the majority were rated as Fair.

CONCLUSIONS

Research on peripheral and neural correlates of self-harm is not sufficiently mature to identify potential biomarkers. Conflicting findings were reported for many of the correlates studied. Methodological problems may have produced biased findings and results are mainly generalizable to patients and girls. We provide recommendations to improve future peripheral and neural correlate research in children and adolescents, ages 3-19 years, with self-harm.

A Pilot Feasibility Study of Reconnecting to Internal Sensations and Experiences (RISE), a Mindfulness-Informed Intervention to Reduce Interoceptive Dysfunction and Suicidal Ideation, among University Students in India

Although 20% of the world’s suicides occur in India, suicide prevention efforts in India are lagging (Vijayakumar et al., 2021). Identification of risk factors for suicide in India, as well as the development of accessible interventions to treat these risk factors, could help reduce suicide in India. Interoceptive dysfunction—or an inability to recognize internal sensations in the body—has emerged as a robust correlate of suicidality among studies conducted in the United States. Additionally, a mindfulness-informed intervention designed to reduce interoceptive dysfunction, and thereby suicidality, has yielded promising initial effects in pilot testing (Smith et al., 2021). The current studies sought to replicate these findings in an Indian context. Study 1 (n = 276) found that specific aspects of interoceptive dysfunction were related to current, past, and future likelihood of suicidal ideation. Study 2 (n = 40) was a small, uncontrolled pre-post online pilot of the intervention, Reconnecting to Internal Sensations and Experiences (RISE). The intervention was rated as highly acceptable and demonstrated good retention. Additionally, the intervention was associated with improvements in certain aspects of interoceptive dysfunction and reductions in suicidal ideation and eating pathology. These preliminary results suggest further testing of the intervention among Indian samples is warranted.

Quality over quantity? The role of social contact frequency and closeness in suicidal ideation and attempt

BACKGROUND

Social support has been identified as a protective factor against suicidal thoughts and behaviors. Research has not conclusively identified the component of social support most implicated in suicidal thoughts and behaviors: (1) frequency of social contact or (2) closeness of relationships. This study examined the relationships between these facets of social support and suicidal thoughts and behaviors in two nationally representative samples, as well as subsamples with social anxiety disorder (SAD).

METHODS

Study 1 variables for lifetime and past-year suicide ideation and attempt, social contact frequency, and closeness were calculated and examined within the National Comorbidity Survey-Replication (NCS-R). Study 2 examined the independent contributions of social contact frequency and closeness to only lifetime suicide attempt in the National Epidemiologic Survey on Alcohol and Related Conditions-III (NESARC-III).

RESULTS

In the NCS-R, lower social closeness but not contact frequency was uniquely associated with suicidal ideation and attempt in the general sample and those with SAD. In the NESARC-III, both components of social support were associated with lifetime suicide attempt in the general sample, while only social closeness was uniquely associated with suicide attempt in the SAD subsample.

LIMITATIONS

This study utilized cross-sectional data and was limited in the validity and specificity of the variables assessed.

DISCUSSION

Lower social closeness was more strongly associated with suicidality than social contact frequency and merits attention as a potential target for suicide-related interventions. Social closeness may be especially relevant in populations experiencing high rates of suicidal thoughts and behaviors and decreased social support.

An investigation into the bidirectional relationship between post-traumatic stress disorder and suicidal ideation: A nine year study

Suicide is the second leading cause of death in adolescents; a frequent precursor of suicide is suicidal ideation (SI). Literature indicates that Post-Traumatic Stress Disorder (PTSD) and SI are robust cross-sectional correlates of one another, with PTSD often being conceptualized as a risk factor (i.e., conferring risk) for SI. Indeed, PTSD is a well-established risk factor for SI; however, SI is an understudied risk factor for PTSD. It is possible that, yet unknown if, PTSD and SI promote each other over time in a bidirectional fashion. We investigated the bidirectional longitudinal associations between PTSD and SI in a large, diverse sample, who at baseline were adolescents. Participants were interviewed between 1995 and 1998 and again between 2004 and 2008. We hypothesized that PTSD and SI would be cross-sectionally, longitudinally, and bidirectionally related and that the number of traumas endorsed at baseline would be positively associated with PTSD and SI at baseline and follow-up. Indeed, PTSD and SI were cross-sectionally correlated at baseline, but not follow-up. PTSD predicted SI over nine years; however, SI during adolescence did not predict PTSD in adulthood. Finally, poly-trauma endorsed at baseline was associated with increased risk of SI, but not PTSD, over nine years.

Suicidal ideation and attempts following nonmedical use of prescription opioids and related disorder

BACKGROUND

Since 1999, the rate of fatal prescription opioid overdoses and of suicides has dramatically increased in the USA. These increases, which have occurred among similar demographic groups, have led to the hypothesis that the opioid epidemic contributed to increases in suicidal behavior, though the underlying association remains poorly defined. We examine the association between nonmedical use of prescription opioids/opioid use disorder and suicidal ideation/attempts.

METHODS

We used longitudinal data from a national representative sample of the US adult population, the National Epidemiologic Survey on Alcohol and Related Conditions. Participants (n = 34 653) were interviewed in 2001-2002 (wave 1) and re-interviewed approximately 3 years later (wave 2). A propensity score analysis estimated the association between exposure to prescription opioids at wave 1 and prevalent/incident suicidal behavior at wave 2.

RESULTS

Heavy/frequent (⩾2-3 times a month) prescription opioid use was associated with prevalent suicide attempts [adjusted risk ratio (ARR) = 2.75, 95% CI 1.35-5.60]. Prescription opioid use disorder was associated with prevalent (ARR = 1.98, 95% CI 1.20-3.28) and incident suicidal ideation (ARR = 2.59, 95% CI 1.25-5.37), and prevalent attempts (ARR = 4.19, 95% CI 1.71-10.27). None of the exposures was associated with incident suicide attempts.

CONCLUSIONS

Heavy/frequent opioid use and related disorder were associated with prevalent suicide attempts; opioid use disorder was also associated with the incident and prevalent suicidal ideation. Given population increases in nonmedical use of prescription opioids and disorder, the opioid crisis may have contributed to population increases in suicidal ideation.

Examining suicide assessment measures for research use: Using item response theory to optimize psychometric assessment for research on suicidal ideation in major depressive disorder

INTRODUCTION

Progress reducing suicide death will require randomized clinical trials (RCTs) specifically targeting suicide risk. Even large RCTs may not stipulate suicide death as the primary outcome, as suicide death is relatively uncommon. Therefore, RCTs may need to specify suicidal ideation as a proxy indicator of risk. There is no consensus on the best tool for measuring suicidal ideation within RCTs. We contrasted the psychometric performance of three suicidal ideation measures to address this need.

METHODS

We applied item response theory to the Beck Scale for Suicide Ideation (BSSI), the Columbia-Suicide Severity Rating Scale (C-SSRS), and the suicide item of the Hamilton Rating Scale for Depression (HRSD) for 101 outpatients with depression and suicidal ideation participating in a RCT with suicidal ideation as the primary outcome.

RESULTS

All measures of suicidal ideation were equally able to detect low and very high levels of suicidal ideation.

CONCLUSIONS

The choice of the specific measure of suicidal ideation in a clinical trial may be dictated by time and financial resources versus the need for granularity in the interpretation of the scores.

[Short screener for suicidal behaviour in primary care - a systematic review]

BACKGROUND

We summarize the available studies reporting diagnostic accuracy of brief instruments for suicidal behaviour in primary care.

METHOD

Databases MEDLINE, EMBASE, PsychINFO, PSYNDEX, and Cochrane Library were searched without any time constraints. Risk of bias and applicability concerns were assessed using the QUADAS-2 tool. The certainty of evidence was rated via GRADEpro. We included studies on primary care patients or participants from the general population. Suicidal behaviour was the defined target condition. With respect to the applicability in a primary care setting we included only studies assessing brief screening instruments; a brief instrument was defined as having no more than 12 items. We assessed sensitivity, specificity, and positive and negative predictive value.

RESULTS

A total of 12,460 studies were identified; of those, n = 7 fulfilled all strong criteria and were included. The range of sensitivity was 0.26-1.00, specificity was 0.64-0.99, positive predictive value 0.06-0.91, negative predictive value 0.83-1.00. Risk of bias was rated moderate and concerns regarding applicability acceptable. A required sensitivity of at least 0.80 and specificity of 0.50 with a moderate to high GRADE rating was achieved by 8 of 11 index tests.

CONCLUSIONS

Brief screening instruments can support ruling-out suicidality, but are less suitable for ruling-in. They may support general practitioners in an initial assessment, but in case of a positive test result, a valid diagnostic assessment should be done by a structured clinical interview.

Interoceptive dysfunction indicates presence and severity of self-injurious behaviors in a clinically severe transdiagnostic sample

Interoceptive dysfunction (ID) is associated with self-injurious behaviors, as disconnection from the body is thought to enable bodily harm. This study tested differences in ID among those with and without history of self-injurious behaviors, as well as the relationship between ID and lethality of past suicide attempts. Adults (N = 344; 61.3% female; mean age 27.68) seeking psychological treatment completed self-report measures and clinical interviews during intake at a community-based clinic. Overall symptom severity was substantial (e.g., approximately 40% reported current suicidal ideation and two-thirds met a clinical cut-off score of ≥ 16 on the Beck Depression Inventory). Orthogonal contrasts were used to test whether mean levels of ID differed across lifetime self-injurious behavior groups. Attempt lethality was regressed on interoceptive dysfunction, covarying depressive symptom severity, age, and gender. Participants with suicide attempt history demonstrated greater ID than those without. Participants who had engaged in non-suicidal self-injury demonstrated greater ID than those with no history of self-injurious behaviors. Greater ID was associated with higher lethality of past suicide attempt, above demographic and clinical covariates. ID may have transdiagnostic relevance for risk assessment and management of self-injurious behaviors.

Childhood trauma and the severity of past suicide attempts in outpatients with cocaine use disorders

INTRODUCTION

Suicide attempts have been associated with both cocaine use disorder (CocUD) and childhood trauma. We investigated how childhood trauma is an independent risk factor for serious and recurrent suicide attempts in CocUD. Method: 298 outpatients (23% women) with CocUD underwent standardized assessments of substance dependence (Diagnostic and Statistical Manual-mental disorders, fourth edition, text revised), impulsiveness, resilience, and childhood trauma, using validated tools. Suicide attempts history was categorized as single vs. recurrent or non-serious vs. serious depending on the lifetime number of suicide attempts and the potential or actual lethality of the worst attempt reported, respectively. Bivariate and multinomial regression analyses were used to characterize which childhood trauma patterns were associated with the suicide attempts groups. Results: 58% of CocUD patients reported childhood trauma. Recurrent and serious suicide attempts clustered together and were thus combined into "severe SA." Severe suicide attempt risk increased proportionally to the number of childhood traumas (test for trend, p = 9 × 10^-7). Non-severe suicide attempt risk increased with impulsiveness and decreased with resilience. In multinomial regression models, a higher number of traumas and emotional abuse were independently and only associated with severe vs. non-severe suicide attempts (effect size = 0.82, AUC = 0.7). The study was limited by its cross-sectional design. Conclusion: These preferential associations between childhood trauma and severe suicide attempts warrant specific monitoring of suicide attempts risk in CocUD, regardless of the severity of addiction profiles.

Suicidal thoughts, behaviors, and event-related potentials: A systematic review and meta-analysis

Suicidal thoughts and behaviors (STBs) are thought to result from, at least in part, abnormalities in various neural systems. Event-related potentials (ERPs) are a useful method for studying neural activity and can be leveraged to study neural deficits related to STBs; however, it is unknown how effective ERPs are at differentiating various STB groups. The present meta-analysis examined how well ERPs can differentiate (a) those with and without suicidal ideation, (b) those with and without suicide attempts, (c) those with different levels of suicide risk, and (d) differences between those with suicide attempts versus those with suicidal ideation only. This meta-analysis included 208 effect sizes from 2,517 participants from 27 studies. We used a random-effects meta-analysis using a restricted maximum likelihood estimator with robust variance estimation. We meta-analyzed ERP-STB combinations that had at least three effect sizes across two or more studies. A qualitative review found that for each ERP and STB combination, the literature is highly mixed. Our meta-analyses largely did not find significant relationships between STBs and ERPs. We also found that the literature is likely severely underpowered, with most studies only being sufficiently powered to detect unrealistically large effect sizes. Our results provided little-to-no support for a reliable relationship between the ERPs assessed and STBs. However, the current literature is severely underpowered, and there are many methodological weaknesses that must be resolved before making this determination. We recommend large-scale collaboration and improvements in measurement practices to combat the issues in this literature.

Future Well-Being Among People Who Attempt Suicide and Survive: Research Recommendations

Over 48,000 people died by suicide in 2018 in the United States, and more than 25 times that number attempted suicide. Research on suicide has focused much more on risk factors and adverse outcomes than on protective factors and more healthy functioning. Consequently, little is known regarding relatively positive long-term psychological adaptation among people who attempt suicide and survive. We recommend inquiry into the phenomenon of long-term well-being after nonfatal suicide attempts, and we explain how this inquiry complements traditional risk research by (a) providing a more comprehensive understanding of the sequelae of suicide attempts, (b) identifying protective factors for potential use in interventions and prevention, and (c) contributing to knowledge and public education that reduce the stigma associated with suicide-related behaviors.