Lifetime History Of Suicide Attempts Research Articles

Individuals Who Had a Lifetime History of Suicide Attempts and Their Relationships With Inflammation, Severity of Depressive Symptoms, and Childhood Maltreatments

Abstract Lifetime history of suicide attempts is associated with inflammatory mechanisms, severity of depressive symptoms, and childhood trauma. This cross-sectional study enrolled 54 suicide attempters and 154 nonsuicide attempters. All individuals were assessed through a questionnaire, a structured clinical interview, scales, anthropometric measures, and laboratory biomarkers. Individuals with a history of lifetime suicide attempts showed significant positive correlations regarding soluble tumor necrosis factor receptor 1 and severity of depressive symptoms (p = 0.013), interleukin-1 receptor antagonist and severity of depressive symptoms (p = 0.04), and absenteeism from work and childhood physical abuse (p = 0.012). Suicide attempters also experienced more childhood trauma (sexual abuse, physical abuse, emotional abuse, emotional neglect, and physical neglect) compared with nonsuicide attempters. IL-4 levels were significantly lower in individuals who attempted suicide than in nonsuicidal individuals. Lifetime suicide attempts in major affective disorders were associated with childhood trauma and proinflammatory and anti-inflammatory cytokines.

Suicidality, perceived chronic stress, and stress-induced cortisol changes of individuals with schizophrenia.

The associations of suicidality with stress are poorly studied in schizophrenia. The study aimed to determine whether suicidality was correlated with perceived chronic stress and the cortisol fluctuations under stress tasks in schizophrenia. High suicidality was defined as a lifetime history of suicide attempts or suicidal ideation in the past 2weeks. Individuals with schizophrenia and high suicidality (SZ-HS, n=59), with low suicidality (SZ-LS, n=207), and healthy controls (HC, n=196) finished the Perceived Stress Scale. Then, they participated in an experiment that induced stress using the Paced Auditory Serial Addition Task and the Mirror Tracing Persistence Task. Negative affect was measured at baseline and after finishing each task. The salivary cortisol was collected before-, after 20min, and after 40min of the tasks. SZ-HS had elevated perceived stress than SZ-LS and HC. Mixed effect models showed that stress tasks induced cortisol changes in all groups; cortisol of SZ-LS was reduced more than HC, but SZ-HS and SZ-LS did not differ in cortisol fluctuations. SZ-HS and SZ-LS experienced similar negative affect changes during tasks and the difference in withdrawal rates was nonsignificant. SZ-HS had an increased error rate than SZ-LS. In conclusion, suicidality was correlated with high-level perceived stress but did not result in differences in cortisol reactivities under stress tasks. It suggests the inconsistency between appraisal of stress and biological stress system disturbance among SZ-HS compared to SZ-LS.

Insomnia moderates the association between positive symptoms and suicidal ideation: A large-scale cross-sectional study in Chinese patients with chronic schizophrenia

ObjectiveBoth insomnia and positive symptoms are linked to suicidal ideation (SI) in schizophrenia, yet their interaction remains unexplored. This study aims to investigate whether insomnia moderates the relationship between positive symptoms and SI in a large sample of Chinese patients with chronic schizophrenia. MethodWe recruited 1407 patients and assessed them using the Positive and Negative Syndrome Scale (PANSS), Insomnia Severity Index (ISI), and Beck Scale for Suicide Ideation (BSSI). We also collected demographic information and lifetime history of suicide attempts (SA). Positive symptoms were evaluated using the PANSS positive factor. Multivariate logistic regression and moderation analysis were performed. ResultsThe prevalence of insomnia and SI was 13.5 % and 9.7 %, respectively. ISI scores (adjusted odds ratio [AOR]: 1.06; 95 % confidence interval [CI]: 1.01–1.10, p = 0.011), PANSS positive factor (AOR: 1.05; 95 % CI: 1.01–1.09, p = 0.008), PANSS mood factor (AOR: 1.16; 95 % CI: 1.10–1.22, p < 0.001), and lifetime SA (AOR: 4.35; 95 % CI: 2.86–6.61, p < 0.001) were independently associated with SI. Moderation analysis revealed that insomnia amplified the association between positive symptoms and SI. Specifically, higher levels of insomnia significantly strengthened this relationship (b = 0.086, 95 % CI = 0.048–0.124, p < 0.001), while the association was negligible in patients with low levels of insomnia (b = −0.003, 95 % CI = -0.042–0.036, p = 0.870). ConclusionBoth insomnia and positive symptoms were independently related to SI in schizophrenia, with insomnia moderating the relationship between positive symptoms and SI. Further studies are needed to test whether interventions against insomnia and positive symptoms would be effective at reducing SI in this population.

Inpatients with a history of suicide attempts in routine clinical care exhibit specific characteristics regarding sociodemographics, life events, personality, and symptom burden

Research indicates that patients with a lifetime history of suicide attempts are particularly burdened. However, investigations of their characteristics and comparisons with other patients are scarce. This study aimed to fill this research gap, using routine clinical data and guided by theoretical models. Data of N = 706 patients (54.4% women) was collected at the psychosomatic inpatient/day-clinic unit of a German university clinic. It comprised sociodemographic data and information about previous experiences (e.g., childhood abuse and neglect), symptom measures (e.g., the PHQ-9) and individual differences (e.g., the level of personality functioning assessed with the OPD-SQS). Groups were compared using independent t-tests or χ2-tests. Of the total sample, 118 patients (16.7%) reported suicide attempts. Those with a history of suicide attempts were more likely to have a migration background and a lower level of education, smoke (heavily) and use illegal substances. They reported lower levels of personality functioning, more current symptoms and traumatic previous experiences of abuse and neglect. Screening for previous suicidal behavior as well as associated factors can yield valuable information for clinical practice. Many group differences map onto previously observed specific risk factors for suicidal behavior, supporting the conceptual models and underscoring their relevance among clinical populations as well.

Suicidal ideation and attempts and hyperarousal in military personnel and veterans: Network analysis reveals roles of anxiety sensitivity and insomnia.

Suicidal thoughts and behaviors (STBs) are a serious public health problem in the United States and of particular concern among active-duty service members and veterans. Research indicates hyperarousal, through its relevance across other disorder constructs and correlations with risk factors, may confer suicide risk in this population. Investigation of hyperarousal's connection with STBs and risk factors relevant to military mental health may be illuminating. A network analysis was conducted to examine whether hyperarousal transdiagnostically linked STBs with psychopathology symptoms and relevant correlates (i.e., alcohol use disorder symptoms, substance abuse, insomnia, and cognitive anxiety sensitivity [AS]) in a sample of active-duty service members and veterans (N = 1,050). Hyperarousal shared direct associations with suicidal ideation, suicidal intent, and lifetime history of suicide attempts when examined in independence. It indirectly correlated with STBs via cognitive AS and insomnia when psychopathology symptoms and relevant correlates were included in the network. The network structure did not differ between active-duty personnel and veterans. Hyperarousal examined in independence may appear to directly correlate with STBs but this relationship may be better accounted for by cognitive AS and insomnia. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The Intersections Between Sexual Orientation, Latine Ethnicity, Social Determinants of Health, and Lifetime Suicide Attempts in a Sample Being Assessed for Entry to Co-Occurring Mental Health and Substance Use Disorder Treatment.

Few studies have examined the relationship between the intersections of lesbian, gay, and bisexual (LGB) sexual orientation, Latine ethnicity, and lifetime suicide attempts in Latine individuals with substance use disorder. This study examines this intersection and controls for social determinants of health, mental health disorder symptoms, and substance use disorder symptoms in a sample of Latine adults entering treatment for co-occurring disorders. Bivariate statistics and multivariate logistic regression were used to analyze assessment data (n = 360) from a bilingual/bicultural integrated behavioral health system serving Latine communities in Massachusetts to examine the relationship between sexual orientation, Latine ethnicity, and history of lifetime suicide attempts. We controlled for social determinants of health, mental health disorders, and substance use disorder (SUD) factors significantly associated with lifetime suicide attempts at the bivariate level. Over 27% of the sample and 35% of Puerto Ricans (PR) reported lifetime suicide attempts. The logistic regression identified that PR clients were 78% more likely to have attempted suicide in a lifetime compared to non-PR clients. Clients identifying as LGB were 3.2 times more likely to report having attempted suicide in their lifetime compared to heterosexual clients. Unemployed clients were 2.4 times more likely to report having attempted suicide in their lifetime compared to employed clients. Findings identify high rates of lifetime suicide attempts among LGBs and PRs entering SUD treatment. Targeted outreach and treatment efforts designed to address intersectionality for this underserved population are needed.

P180: Prefrontal activation during a verbal fluency test in patients with major depressive disorder: an fNIRS study

Objective:Although various clinical indicators of suicide have been recorded, the previous suicide attempt is meaningful as one of the most robust risk factors predicting subsequent suicide attempts but there are lacking in biomarkers for evaluating suicide attempts. This study aimed to analyze the correlation of changes in oxygenated hemoglobin concentration with lifetime suicide attempt during verbal fluency test.Method:A total of 60 patients with major depressive disorder (MDD) were enrolled. Demographic, clinical, physical, and psychological evaluations were conducted. We evaluated the suicidal behaviors through MINI suicidality item. We indicated verbal fluency test to examine prefrontal activation during the cognitive execution while fNIRS was observed.Results:54 of enrolled patient with MDD (23 those with a lifetime history of suicide attempt; 31 those without a lifetime history of suicide attempt) are eligible for the subject. The patients were 35.19% of those with a lifetime history of suicide attempt. The values of the changes in oxygenated hemoglobin involving the entire regions of prefrontal cortex were smaller in those with a lifetime history of suicide attempt. The biggest difference is in right VMPFC, the mean score of those with a lifetime history of suicide attempt and those without a lifetime history of suicide attempt were 0.095(SD, 1.032) and 0.610(SD, 1.038) although the statistically non-significance. We discovered that a small value of changes in oxygenated hemoglobin was related to lifetime suicide attempt through multivariable logistic regression analysis. After adjusting for age, sex, years of education, and HAMD, there was a significant difference in the right VMPFC [OR = 0.491(95% CI=0.235~0.916), p = 0.036].Conclusions:Study result indicated that the values of the changes in oxygenated hemoglobin were smaller in who attempted suicide before during cognitive execution. The adjusted regression analysis was presented significant result in right VMPFC. Therefore, the changes in oxygenated hemoglobin measured by fNIRS can be applied as a biomarker for suicidal behavior such as lifetime suicide attempt.

Social connectedness and adolescent suicide risk.

Despite evidence of the importance of interpersonal connectedness to our understanding of suicide risk, relatively little research has examined the protective and buffering effects of connectedness among adolescents. The aims of this study were to determine: (a) whether overall connectedness (composite of family, peer, and school) and specific domains of connectedness were related to a lower likelihood of suicide attempts, and (b) whether these factors buffer the prospective risk of suicide attempt for high-risk subgroups (i.e., recent suicidal ideation and/or lifetime history of suicide attempt, peer victimization, or sexual and gender minority status). Participants were 2,897 adolescents (64.7% biological female), ages 12 to 17 (M = 14.6, SD = 1.6), recruited in collaboration with the Pediatric Emergency Care Applied Research Network (PECARN) from 14 emergency departments for the Emergency Department Screen for Teens at Risk for Suicide Study (ED-STARS). Suicide risk and protective factors were assessed at baseline; 3- and 6-month follow-ups were completed (79.5% retention). Multivariable logistic regressions were conducted, adjusting for established suicide risk factors. Higher overall connectedness and, specifically, school connectedness were associated with decreased likelihood of a suicide attempt across 6 months. Overall connectedness and connectedness domains did not function as buffers for future suicide attempts among certain high-risk subgroups. The protective effect of overall connectedness was lower for youth with recent suicidal ideation or a suicide attempt history than for those without this history. Similarly, overall connectedness was protective for youth without peer victimization but not those with this history. Regarding specific domains, family connectedness was protective for youth without recent suicidal ideation or a suicide attempt history and peer connectedness was protective for youth without peer victimization but not youth with these histories. In this large and geographically diverse sample, overall and school connectedness were related prospectively to lower likelihood of suicide attempts, and connectedness was more protective for youth not in certain high-risk subgroups. Results inform preventive efforts aimed at improving youth connectedness and reducing suicide risk.

Associations between suicidality and interoception in obsessive-compulsive disorder

BackgroundIndividuals with obsessive-compulsive disorder (OCD) are at increased risk for suicide. One potential risk factor is interoceptive sensibility (IS), which is one's subjective experience of bodily sensations. The current study examined the relationship between IS and current suicidal ideation and lifetime history of suicide attempt, controlling for relevant covariates. MethodsParticipants (N = 145) were a clinical sample of individuals with OCD from the New York City area. A clinical rater administered a diagnostic interview and an OCD severity assessment, and participants completed questionnaires about demographics, IS, and suicidality. ResultsCurrent suicidal ideation was associated with reduced trusting of the body, and lifetime history of suicide attempt was related to greater general awareness of sensation. These associations remained significant after controlling for covariates. ConclusionsThese results suggest that specific facets of IS may be associated with specific domains of suicidality. Decreased body trusting may represent a feeling of disconnection from the body that facilitates desire for death. Increased noticing of bodily sensations may lead to greater mental pain, which could interact with deficits in emotion regulation to increase risk for suicide attempt. Further research on the relationships between IS and suicidality in OCD is warranted.

Validation and application of the Chinese version of the Columbia-Suicide Severity Rating Scale: Suicidality and cognitive deficits in patients with major depressive disorder

BackgroundDepression is a significant risk factor for death by suicide. Additionally, patients with depression who have neurocognitive dysfunction are at a higher risk of exhibiting suicidal behaviors. We aimed to validate the Chinese version of the Columbia Suicide Severity Rating Scale (C-SSRS) and then employ it to examine the association between suicidality and cognitive deficits in patients with Major Depressive Disorder (MDD). MethodsData from 456 patients with MDD who underwent baseline assessment and 3-month follow-up were used for psychometric validation of the C-SSRS. 430 patients were divided into a mild cognitive impairment group (N = 390) and a severe cognitive impairment group (N = 40) using cluster analysis and compared with healthy controls. The relationship between C-SSRS scores and the degree of cognitive impairment was analyzed. Results1) The Chinese version of C-SSRS demonstrated good internal consistency (Cronbach's alpha = 0.884/0.842), convergent and divergent validity. 2) The severity of suicidal ideation (SI), the intensity of SI, and the lifetime history of suicide attempts were significant independent predictors of short-term suicide attempts. 3) Higher worst-point lifetime SI severity and intensity scores in patients with MDD were significantly associated with severe cognitive impairment. LimitationsThe analysis of cognition and suicide was based on cross-sectional studies. Hence, changes in SI and cognitive function over time could not be analyzed. ConclusionsThe Chinese C-SSRS is a reliable and valid assessment tool for suicidal ideation and behavior in patients with depression. Suicidal ideation in patients with MDD is associated with cognitive dysfunction. These findings provide a reference for suicide prevention in patients with depression.

Dialectical Behavior Therapy for Adolescents With Bipolar Disorder

Early-onset bipolar disorder conveys substantial risk for suicide. No psychosocial intervention for this population expressly targets suicidal behavior. To determine whether dialectical behavior therapy (DBT) for adolescents with bipolar spectrum disorder is more effective than standard of care (SOC) psychotherapy in decreasing suicide attempts over 1 year. Adolescents aged 12 to 18 years diagnosed with bipolar spectrum disorder were recruited from a specialty outpatient psychiatric clinic between November 2014 and September 2019. Independent evaluators conducted quarterly assessments over 1 year with participants and parents. Data were analyzed from March 2021 to November 2022. Participants were randomly assigned to 1 year of DBT (36 sessions; n = 47) or SOC psychotherapy (schedule clinically determined; n = 53). All youth received medication management via a flexible algorithm. Primary outcomes included suicide attempts over 1 year and mood symptoms and states (depression and hypomania/mania). Secondary analyses included moderation of DBT effects by history of suicide attempt and mediation through emotion dysregulation. Of 100 included participants, 85 (85%) were female, and the mean (SD) age was 16.1 (1.6) years. Participants were followed up over a mean (SD) of 47 (14) weeks. Both treatment groups demonstrated significant and similar improvement in mood symptoms and episodes over 1 year (standardized depression rating scale slope, -0.17; 95% CI, -0.31 to -0.03; standardized mania rating scale slope, -0.24; 95% CI, -0.34 to -0.14). DBT and SOC participants reported similar suicide attempt rates at intake as measured on the Adolescent Longitudinal Follow-Up Evaluation (ALIFE; mean [SD] attempts, 2.0 [4.5] vs 1.8 [3.9], respectively; P = .80). DBT participants reported slightly more suicide attempts at intake as measured on the Columbia-Suicide Severity Rating Scale Pediatric Version (C-SSRS; mean [SD] attempts, 1.4 [3.6] vs 0.6 [0.9]; P = .02). DBT participants reported significantly fewer suicide attempts over follow-up compared with SOC participants via the ALIFE (mean [SD] attempts per follow-up period, 0.2 [0.4] vs 1.1 [4.3], controlling for baseline attempts: P = .03) and the C-SSRS (mean [SD] attempts per follow-up period, 0.04 [0.2] vs 0.10 [0.3], controlling for baseline attempts; P = .03). DBT was significantly more effective than SOC psychotherapy at decreasing suicide attempts over 1 year (ALIFE: incidence rate ratio [IRR], 0.32; 95% CI, 0.11-0.96; C-SSRS: IRR, 0.13; 95% CI, 0.02-0.78). Decreased rate of suicide attempts in DBT was moderated by presence of lifetime history of suicide attempt and time (IRR, 0.23; 95% CI, 0.13-0.44) and mediated by improvement in emotion dysregulation (IRR, 0.61; 95% CI, 0.42-0.89), particularly for those with high baseline emotion dysregulation (standardized β, -0.59; 95% CI, -0.92 to -0.26). In this randomized clinical trial, DBT demonstrated efficacy in decreasing suicide attempts among the high-risk population of adolescents with bipolar spectrum disorder. ClinicalTrials.gov Identifier: NCT02003690.

Are There Any Differences in Clinical and Biochemical Variables between Bipolar Patients with or without Lifetime Psychotic Symptoms?

Psychotic symptoms occur in more than half of patients affected by Bipolar Disorder (BD) and are associated with an unfavorable course of the disorder. The objective of this study is to identify the differences in the clinical and biochemical parameters between bipolar patients with or without psychotic symptoms. A total of 665 inpatients were recruited. Demographic, clinical, and biochemical data related to the first day of hospitalization were obtained via a screening of the clinical charts and intranet hospital applications. The two groups identified via the lifetime presence of psychotic symptoms were compared using t tests for quantitative variables and χ2 tests for qualitative ones; binary logistic regression models were subsequently performed. Patients with psychotic BD (compared to non-psychotic ones) showed a longer duration of hospitalization (p < 0.001), higher Young Mania Rating Scale scores (p < 0.001), lower Global Assessment of Functioning scores (p = 0.002), a less frequent history of lifetime suicide attempts (p = 0.019), less achievement of remission during the current hospitalization (p = 0.028), and a higher Neutrophile to Lymphocyte Ratio (NLR) (p = 0.006), but lower total cholesterol (p = 0.018) and triglycerides (p = 0.013). Patients with psychotic BD have a different clinical and biochemical profile compared to their counterparts, characterized by more clinical severity, fewer metabolic alterations, and a higher grade of inflammation. Further multi-center studies have to confirm the results of this present study.

Factors associated with transitioning from suicidal ideation to suicide attempt in the short-term: Two large cohorts of depressed outpatients

BackgroundThis study explores factors associated with transitioning from recent suicidal ideation (SI) to suicide attempt (SA) in depressed outpatients. MethodsThis is a case-control study nested in two cohorts (LUEUR and GENESE) of depressed adult outpatients recruited in France and followed up for six weeks. SI, depression, anxiety, insomnia, impulsivity, and hopelessness were assessed with validated scales. Differences between patients with SI who attempted suicide during follow up and those who did not were explored using logistic regressions. ResultsThere was a slight majority of females in both cohorts. Mean age was 47.2 years in LUEUR and 49.4 years in GENESE. Of the 3785 participants in the LUEUR cohort, 72 (2.1 %) attempted suicide within the 6-week period vs. 19 of the 2698 participants (0.7 %) in the GENESE cohort. In LUEUR, factors associated with SA within the 6-week period were lifetime history of SA (OR = 5.35, 95 % CI = 3.30–8.66), high SI at baseline (OR = 3.87, 95 % CI = 2.4–6.24), associated treatments (OR = 3.28, 95 % CI = 2.00–5.38), and less improvement over follow-up in the following symptoms: SI (OR = 3.64, 95 % CI = 1.89–7.02), depression (OR = 3.66, 95 % CI = 1.76–7.62), and anxiety (OR = 3.26, 95 % CI = 1.46–7.27). In GENESE, associated factors were lifetime history of SAs (OR = 9.93, 95 % CI = 3.83–25.80), and less improvement in SI (OR = 9.20, 95 % CI = 3.61–23.44). LimitationsHeterogeneity of cohorts prevented from performing a pooled analysis with a greater sample size. ConclusionsIn depressed outpatients, lack of improvement was strongly associated with a short-term SA, particularly in patients with a history of previous SAs. Fast acting treatment on SI and depression may help prevent SAs.

A Suicide-Specific Diagnosis – The Case Against

A Suicide-Specific Diagnosis – The Case Against

Association between the epigenetic lifespan predictor GrimAge and history of suicide attempt in bipolar disorder.

Bipolar disorder (BD) has been previously associated with premature mortality and aging, including acceleration of epigenetic aging. Suicide attempts (SA) are greatly elevated in BD and are associated with decreased lifespan, biological aging, and poorer clinical outcomes. We investigated the relationship between GrimAge, an epigenetic clock trained on time-to-death and associated with mortality and lifespan, and SA in two independent cohorts of BD individuals (discovery cohort - controls (n = 50), BD individuals with (n = 77, BD/SA) and without (n = 67, BD/non-SA) lifetime history of SA; replication cohort - BD/SA (n = 48) and BD/non-SA (n = 47)). An acceleration index for the GrimAge clock (GrimAgeAccel) was computed from blood DNA methylation (DNAm) and compared between groups with multiple general linear models. Differences in epigenetic aging from the discovery cohort were validated in the independent replication cohort. In the discovery cohort, controls, BD/non-SA, and BD/SA significantly differed on GrimAgeAccel (F = 5.424, p = 0.005), with the highest GrimAgeAccel in BD/SA (p = 0.004, BD/SA vs. controls). Within the BD individuals, BD/non-SA and BD/SA differed on GrimAgeAccel in both cohorts (p = 0.008) after covariate adjustment. Finally, DNAm-based surrogates revealed possible involvement of plasminogen activator inhibitor 1, leptin, and smoking pack-years in driving accelerated epigenetic aging. These findings pair with existing evidence that not only BD, but also SA, may be associated with an accelerated biological aging and provide putative biological mechanisms for morbidity and premature mortality in this population.

Prevalence and correlates of lifetime suicide attempt in obsessive-compulsive disorder with major depression

BackgroundLittle is known about specific obsessive-compulsive clinical features associated with lifetime history of suicide attempt in individuals with obsessive-compulsive disorder (OCD) and major depression. MethodsThe study sample included 515 adults with OCD and a history of major depression. In exploratory analyses, we compared the distributions of demographic characteristics and clinical features in those with and without a history of attempted suicide and used logistic regression to evaluate the association between specific obsessive-compulsive clinical features and lifetime suicide attempt. ResultsSixty-four (12%) of the participants reported a lifetime history of suicide attempt. Those who had attempted suicide were more likely to report having experienced violent or horrific images (52% vs. 30%; p < 0.001). The odds of lifetime suicide attempt were more than twice as great in participants with versus without violent or horrific images (O.R. = 2.46, 95%, CI = 1.45–4.19; p < 0.001), even after adjustment for other risk correlates of attempted suicide, including alcohol dependence, post-traumatic stress disorder, parental conflict, excessive physical discipline, and number of episodes of depression. The association between violent or horrific images and attempted suicide was especially strong in men, 18–29 year olds, those with post-traumatic stress disorder, and those with particular childhood adversities. ConclusionsViolent or horrific images are strongly associated with lifetime suicide attempts in OCD-affected individuals with a history of major depression. Prospective clinical and epidemiological studies are needed to elucidate the basis of this relationship.

Prevalence and characteristics of psychotic inpatients with history of lifetime suicide attempts

Prevalence and characteristics of psychotic inpatients with history of lifetime suicide attempts

Common and differential risk factors behind suicidal behavior in patients with impulsivity-related disorders: The case of bulimic spectrum eating disorders and gambling disorder.

Mental disorders with high levels of impulsivity such as bulimic spectrum eating disorders (BSED) and gambling disorder (GD) are associated with high risk of suicidal behavior. The aim of the present study was to identify the common and differential vulnerability factors behind suicide attempts in a sample of patients with BSED compared to patients with GD. A total of 6,077 adults who sought treatment and met criteria either for BSED (n = 2,391) or GD (n = 3,686) were assessed at a specialized hospital unit. Personality traits, psychopathological symptomatology, lifetime history of suicide attempts and socio-demographic variables were evaluated. The prevalence of suicide attempts was higher for BSED patients (26.2%) compared to GD patients (7.1%) being anorexia nervosa (Binge/Purge type) and bulimia nervosa the most affected subtypes. In the predictive model, the transdiagnostic vulnerability factors with the highest contribution to the risk of suicidal behavior both in BSED and GD were unemployment, early age of onset of the disorder, worse psychopathological state, and self-transcendence personality trait. However, specific risk factors for suicidal acts were identified in each disorder: longer duration of the disorder, lower education levels and reward dependence were exclusively associated with BSED while female gender, older age, and higher harm avoidance were associated with GD. Patients with GD and BSED share certain vulnerability factors although certain factors are exclusive to each disorder. Interventions need to pay special attention to both common and specific vulnerability factors to mitigate the risk of suicidal acts in these disorders.

Free-Water Diffusion Magnetic Resonance Imaging Differentiates Suicidal Ideation From Suicide Attempt in Treatment-Resistant Depression

BackgroundSuicide attempt is highly prevalent in treatment-resistant depression (TRD); however, the neurobiological profile of suicidal ideation versus suicide attempt is unclear. Neuroimaging methods including diffusion magnetic resonance imaging–based free-water imaging may identify neural correlates underlying suicidal ideation and attempts in individuals with TRD. MethodsDiffusion magnetic resonance imaging data were obtained from 64 male and female participants (mean age 44.5 ± 14.2 years), including 39 patients with TRD (n = 21 and lifetime history of suicidal ideation but no attempts [SI group]; n = 18 with lifetime history of suicide attempt [SA group]), and 25 age- and sex-matched healthy control participants. Depression and suicidal ideation severity were examined using clinician-rated and self-report measures. Whole-brain neuroimaging analysis was conducted using tract-based spatial statistics via FSL to identify differences in white matter microstructure in the SI versus SA groups and in patients versus control participants. ResultsFree-water imaging revealed elevated axial diffusivity and extracellular free water in fronto-thalamo-limbic white matter tracts of the SA group compared with the SI group. In a separate comparison, patients with TRD had widespread reductions in fractional anisotropy and axial diffusivity, as well as elevated radial diffusivity compared with control participants (thresholded p < .05, familywise error corrected). ConclusionsA unique neural signature consisting of elevated axial diffusivity and free water was identified in patients with TRD and suicide attempt history. Findings of reduced fractional anisotropy, axial diffusivity, and elevated radial diffusivity in patients versus control participants are consistent with previously published studies. Multimodal and prospective investigations are recommended to better understand biological correlates of suicide attempt in TRD.

Three clinical indicators of borderline personality disorder in anorexia nervosa: A pilot study

ObjectivesCo-occurrence of Anorexia Nervosa (AN) and borderline personality disorder (BPD) is frequent (8%–40%) and associated with specificities that impact the treatment process. Lifetime history of suicide attempt (HAS), substance use disorder (SUD) and the binge-purging subtype (B-P) might be good markers of such comorbidity. We made the hypothesis that in patients with AN, the presence of HAS, SUD and B-P have sufficient predictive power to efficiently detect an associated BPD comorbidity. MethodsAfter a case report analysis on a pilot sample of 119 patients with AN, we performed a cross-sectional analysis on a confirmatory sample of 84 patients with AN in a single center specialized in eating disorders systematically assessing HAS, SUD, B-P and BPD using the Mini International Neuropsychiatric Interview for DSM-5 and the Diagnostic Interview for Borderline (DIB-R). ResultsB-P had a 100% negative predictive value, and the combination of SUD plus HAS had a 100% positive predictive value. On a quantitative level, B-P, HAS and SUD were independent explanatory factors of the DIB-R total score. ConclusionsThe main limitations were the low number of patients, the single center analyses, the potential overlapping of assessments and the fact that data were exclusively declarative. In this study, every patient with B-P, SUD and HAS had been diagnosed with BPD.