Mental disorders, comorbidity and suicidal behavior: results from the National Comorbidity Survey Replication

Suicide risk among young people who use drugs in Hanoi, Vietnam: Prevalence and related factors

AIM

Adolescents and young adults are vulnerable to suicidality, especially those at high risk such as young people who use drugs (YPUD). This study aimed to assess the prevalence and related factors of suicide risk among this population.

METHODS

We conducted a descriptive, cross-sectional study on YPUD aged 16-24 in the community in Hanoi, Vietnam. Data on socio-demographic characteristics, drug use, and adverse childhood experiences were collected using face-to-face questionnaires by research assistants. YPUD were screened by psychiatrists for depression, psychotic symptoms, and suicide risk, using the MINI questionnaire.

RESULTS

Three hundred-seven YPUD (250 males, 57 females) participated in the study; of those, 86 (28.0%) were at risk of suicide. Gender (female), adverse childhood experiences, depression, and psychosis were relevant factors.

CONCLUSION

The prevalence of suicide risk among young people using drugs was high. Therefore, suicide risk should be screened and monitored in the clinical assessment of this population. In addition, the intervention efforts to detect and intervene in adverse events during childhood may be one way to prevent mental health and suicide in later life.

National Trends in Emergency Department Visits for Suicide Attempts and Intentional Self-Harm

OBJECTIVE

This study estimated national annual trends and characteristics of emergency department visits for suicide attempts and intentional self-harm in the United States from 2011 to 2020.

METHODS

Data were from the National Hospital Ambulatory Medical Care Survey, an annual cross-sectional national sample survey of emergency departments. Visits for suicide attempts and intentional self-harm were identified using discharge diagnosis codes (ICD-9-CM for 2011-2015; ICD-10-CM for 2016-2020) or reason-for-visit codes. The annual proportion of emergency department visits for suicide attempts and intentional self-harm was estimated.

RESULTS

The weighted number of emergency department visits for suicide attempts and intentional self-harm increased from 1.43 million, or 0.6% of total emergency department visits, in 2011-2012 to 5.37 million, or 2.1% of total emergency department visits in 2019-2020 (average annual percent change, 19.5%, 95% CI=16.9, 22.2). Visits per capita increased from 261 to 871 visits per 100,000 persons (average annual percent change, 18.8%, 95% CI=17.6, 20.0). The increase in visits was widely distributed across sociodemographic groups. While suicide attempt and intentional self-harm visits were most common among adolescents, adults age 65 or older demonstrated the largest increase (average annual percent change, 30.2%, 95% CI=28.5, 32.0). Drug-related diagnoses were the most common co-occurring diagnosis among suicide attempt and intentional self-harm visits. Despite the rise in emergency department visits for suicide attempts and intentional self-harm, less than 16% included an evaluation by a mental health professional.

CONCLUSIONS

A significant national increase in emergency department visits for suicide attempts and intentional self-harm occurred from 2011 to 2020, as a proportion of total emergency department visits and as visits per capita. These trends underscore an urgent need to improve the continuum of mental health care for individuals with suicidal symptoms.

Sex differences and risk factors of self-reported suicide attempts in middle-aged Chinese Han patients with first-episode drug-naïve anxious depression: a large-scale cross-sectional study

This study aims to investigate sex differences and risk factors for self-reported suicide attempts among Chinese Han middle-aged patients with first-episode drug-naïve (FEDN) anxious depression (AD). A total of 1796 patients with FEDN major depressive disorder were enrolled in this study, including 341 middle-aged patients with AD. We compared the prevalence, demographics, and clinical characteristics of suicide attempts between male and female patients with FEDN middle-aged AD. We also explored the risk factors for self-reported suicide attempts in this population using binary logistic regression analysis. The male/female ratio was 91/250 and the age of onset was 51.50 ± 4.13. Our results showed that there were no significant sex differences in the prevalence of self-reported suicide attempts in middle-aged patients with FEDN AD. However, we did find significant differences in several demographic and clinical characteristics between self-reported suicide attempters and non-suicide attempters. Moreover, severe anxiety, measured by the Hamilton Anxiety Rating Scale score, was identified as a risk factor for self-reported suicide attempts in female middle-aged AD patients. Additionally, elevated thyroid peroxidase antibody (TPOAb) levels were linked to self-reported suicide attempts in male AD patients. Our findings suggest that there are no significant sex differences in the prevalence of self-reported suicide attempts in this population, but there may be sex-specific risk factors for self-reported suicide attempts in middle-aged AD. Clinical psychiatrists need to pay attention to thyroid hormone levels in middle-aged anxious depression.

Active suicidal ideation associated with dysfunction in default mode network using resting-state EEG and functional MRI - Findings from the T-RAD Study

Suicide in youth and young adults is a serious public health problem. However, the biological mechanisms of suicidal ideation (SI) remain poorly understood. The primary goal of these analyses was to identify the connectome profile of suicidal ideation using resting state electroencephalography (EEG). We evaluated the neurocircuitry of SI in a sample of youths and young adults (aged 10-26 years, n = 111) with current or past diagnoses of either a depressive disorder or bipolar disorder who were enrolled in the Texas Resilience Against Depression Study (T-RAD). Neurocircuitry was analyzed using orthogonalized power envelope connectivity computed from resting state EEG. Suicidal ideation was assessed with the 3-item Suicidal Thoughts factor of the Concise Health Risk Tracking self-report scale. The statistical pipeline involved dimension reduction using principal component analysis, and the association of neuroimaging data with SI using regularized canonical correlation analysis. From the original 111 participants and the correlation matrix of 4950 EEG connectivity pairs in each band (alpha, beta, theta), dimension reduction generated 1305 EEG connectivity pairs in the theta band, 2337 EEG pairs in the alpha band, and 914 EEG connectivity pairs in the beta band. Overall, SI was consistently involved with dysfunction of the default mode network (DMN). This report provides preliminary evidence of DMN dysfunction associated with active suicidal ideation in adolescents. Using EEG using power envelopes to compute connectivity moves us closer to using neurocircuit dysfunction in the clinical setting to identify suicidal ideation.

Co-developmental trajectories of suicidal ideation and non-suicidal self-injury among Chinese adolescents: Transdiagnostic predictors and association with suicide attempts

INTRODUCTION

Adolescent suicidal ideation (SI) and non-suicidal self-injury (NSSI) are crucial public health issues, yet their co-developmental trajectories during early adolescence and their associations with predictors and outcomes are unclear. This study aimed to (a) identify heterogeneous co-developmental trajectories of SI and NSSI, (b) explore associations between transdiagnostic predictors and trajectories, and (c) assess suicide attempt risk across trajectories.

METHODS

Four hundred fifty-three adolescents (Mage = 12.35 years, 48.3% boys) completed surveys at 6-month intervals across 2 years. At Time 1 (Nov 2020), participants completed surveys encompassing SI, and NSSI, along with family, peer, and individual predictors. Subsequent surveys (Times 2-4) measured SI and NSSI, with suicide attempts queried at Time 4.

RESULTS

Parallel process latent class growth models revealed three co-developmental groups (i.e., Stable low NSSI and SI; Moderate-NSSI and high-SI, parallel decreasing; High-NSSI and moderate-SI, parallel increasing). Multivariate logistic regression indicated that group membership was predicted by parental rejection, parental warmth, bullying victimization, depressive and anxiety symptoms, thwarted belongingness, and perceived burdensomeness. Adolescents in the "High-NSSI and moderate-SI, parallel increasing" group reported the highest suicide attempt frequency.

CONCLUSION

These findings underscore subgroup distinctions and transdiagnostic predictors in comprehending SI and NSSI progression, emphasizing the necessity of dynamic monitoring and tailored interventions for distinct subgroup characteristics.

Episodic future thinking and psychopathology: A focus on depression and suicide risk

Episodic future thinking (EFT), the ability to imagine future autobiographical events, is both an everyday and clinically significant cognitive process. With a focus on depression and suicidality, here we discuss evidence connecting EFT with psychopathology. Emotional valence of imagined future events has emerged as the most widely established feature of EFT detected to date, with less positive EFT being associated with depressive symptoms and suicidal thoughts and behaviors. This pattern may not be merely a byproduct of sadness or anhedonia. Promising directions for future research include clarifying the temporal association between EFT and clinical outcomes, investigating the potential benefits and drawbacks of positive EFT, and refining assessments for youth to measure EFT either preceding or soon after onset of psychopathology.

Mindsets of suicide trajectories: An Linguistic Inquiry and Word Count analysis of suicide hotline conversations

OBJECTIVE

The aim of the study was to explore the psychological characteristics of the individuals with various suicide risks using computerized text analysis, in the hopes of a better understanding of suicide trajectories.

METHODS

627 first-time callers' records were randomly selected from Taiwan An-Shin Hotline database between 2013 and 2018. The voice records were evaluated by two psychologists to determine the levels of suicide risk (156 with uncertainty of risk, 177 with low suicidal ideation, 157 with high suicidal ideation, and 137 with suicide preparation/attempt) and transcribed into text. The Linguistic Inquiry and Word Count 2015 (LIWC2015) program combined with Chinese dictionary were then used to calculate the frequency of word categories.

RESULTS

Exploratory factor analysis identified four mindsets of language characteristics, named "opposition and questioning", "active engagement", "negative rumination", and "focus on death". Psychological descriptions of the mindsets were also obtained through correlation analysis with the LIWC2015 categories and indicators. The four mindsets effectively distinguished the callers with different levels of suicide risk.

CONCLUSION

The psychological characteristics of people with various suicide risks can be described and differentiated via the closed-word categories and composite indicators. These results provide useful information for practitioners and researchers.

Effect of virtual reality self-counseling with the intimate other avatar

Virtual reality self-counseling (VR-SC) is considered an effective approach for addressing mental health problems. Previous studies have shown the effectiveness of VR-SC using Sigmund Freud's avatar as the counselor. However, considering that virtual reality (VR) enables embodied perspective-taking of another person, VR-SC using the avatar of a person who cares about the participant (an intimate person), such as a family member or friend, is considered effective because it could create warm attitudes toward the participants themselves. In this study, 60 undergraduate and graduate students were split into three conditions: VR-SC with intimate persons, VR-SC with Freud, and a control group. The intervention effects were then compared. The results showed that VR-SC with an intimate person was the most effective in improving anxiety symptoms. These results may be attributed to accepting and affirming oneself from the perspective of the intimate person's avatar and counseling oneself. This study is significant in that it is the first to conduct VR-SC with the avatar of an intimate person and compare the effects with Freud's avatar. More importantly, it showed that the same VR-SC method could have different effects depending on the avatar of the counseling partner.

Adolescents Who Do Not Endorse Risk via the Patient Health Questionnaire Before Self-Harm or Suicide

Importance

Given that the Patient Health Questionnaire (PHQ) item 9 is commonly used to screen for risk of self-harm and suicide, it is important that clinicians recognize circumstances when at-risk adolescents may go undetected.

Objective

To understand characteristics of adolescents with a history of depression who do not endorse the PHQ item 9 before a near-term intentional self-harm event or suicide.

Design, Setting, and Participants

This was a retrospective cohort study design using electronic health record and claims data from January 2009 through September 2017. Settings included primary care and mental health specialty clinics across 7 integrated US health care systems. Included in the study were adolescents aged 13 to 17 years with history of depression who completed the PHQ item 9 within 30 or 90 days before self-harm or suicide. Study data were analyzed September 2022 to April 2023.

Exposures

Demographic, diagnostic, treatment, and health care utilization characteristics.

Main Outcome(s) and Measure(s)

Responded "not at all" (score = 0) to PHQ item 9 regarding thoughts of death or self-harm within 30 or 90 days before self-harm or suicide.

Results

The study included 691 adolescents (mean [SD] age, 15.3 [1.3] years; 541 female [78.3%]) in the 30-day cohort and 1024 adolescents (mean [SD] age, 15.3 [1.3] years; 791 female [77.2%]) in the 90-day cohort. A total of 197 of 691 adolescents (29%) and 330 of 1024 adolescents (32%), respectively, scored 0 before self-harm or suicide on the PHQ item 9 in the 30- and 90-day cohorts. Adolescents seen in primary care (odds ratio [OR], 1.5; 95% CI, 1.0-2.1; P = .03) and older adolescents (OR, 1.2; 95% CI, 1.0-1.3; P = .02) had increased odds of scoring 0 within 90 days of a self-harm event or suicide, and adolescents with a history of inpatient hospitalization and a mental health diagnosis had twice the odds (OR, 2.0; 95% CI, 1.3-3.0; P = .001) of scoring 0 within 30 days. Conversely, adolescents with diagnoses of eating disorders were significantly less likely to score 0 on item 9 (OR, 0.4; 95% CI, 0.2-0.8; P = .007) within 90 days.

Conclusions and Relevance

Study results suggest that older age, history of an inpatient mental health encounter, or being screened in primary care were associated with at-risk adolescents being less likely to endorse having thoughts of death and self-harm on the PHQ item 9 before a self-harm event or suicide death. As use of the PHQ becomes more widespread in practice, additional research is needed for understanding reasons why many at-risk adolescents do not endorse thoughts of death and self-harm.

Mediational pathways between aggregate genetic liability and nonfatal suicide attempt: A Swedish population-based cohort

Despite recent progress in the genetics of suicidal behavior, the pathway by which genetic liability increases suicide attempt risk is unclear. We investigated the mediational pathways from family/genetic risk for suicide attempt (FGRSSA) to suicide attempt by considering the roles of psychiatric illnesses. In a Swedish cohort, we evaluated time to suicide attempt as a function of FGRSSA and the mediational effects of alcohol use disorder, drug use disorder, attention-deficit/hyperactivity disorder, major depression, anxiety disorder, bipolar disorder, and non-affective psychosis. Analyses were conducted by sex in three age periods: 15-25 years (Nfemales = 850,278 and Nmales = 899,366), 26-35 years (Nfemales = 800,189 and Nmales = 861,774), and 36-45 years (Nfemales = 498,285 and Nmales = 535,831). The association between FGRSSA and suicide attempt was mediated via psychiatric disorders. The highest mediation effects were observed for alcohol use disorder in males (15-25 years, HRtotal = 1.60 [1.59; 1.62], mediation = 14.4%), drug use disorder in females (25-36 years, HRtotal = 1.46 [1.44; 1.49], mediation = 11.2%), and major depression (25-36 years) in females (HRtotal = 1.46 [1.44; 1.49], mediation = 7%) and males (HRtotal = 1.50 [1.47;1.52], mediation = 4.7%). While the direct effect of FGRSSA was higher at ages of 15-25, the mediation via psychiatric disorders was more prominent in later adulthood. Our study informs about the psychiatric illnesses via which genetic liability operates to impact suicide attempt risk, with distinct contributions according to age and sex.

Understanding heterogeneity, comorbidity, and variability in depression: Idiographic models and depression outcomes

This study uses time-intensive, item-level assessment to examine individual depressive and co-occurring symptom dynamics. Participants experiencing moderate-severe depression (N = 31) completed ecological momentary assessment (EMA) four times per day for 20 days (total observations = 2480). We estimated idiographic networks using MDD, anxiety, and ED items. ED items were most frequently included in individual networks relative to depression and anxiety items. We built ridge and logistic regression ensembles to explore how idiographic network centrality metrics performed at predicting between-subject depression outcomes (PHQ-9 change score and clinical deterioration, respectively) at 6-months follow-up. For predicting PHQ-9 change score, R2 ranged between 0.13 and 0.28. Models predicting clinical deterioration ranged from no better than chance to 80 % accuracy. This pilot study shows how co-occurring anxiety and ED symptoms may contribute to the maintenance of depressive symptoms. Future work should assess the predictive utility of psychological networks to develop understanding of how idiographic models may inform clinical decisions.

Neural Markers of Emotion Reactivity and Regulation Before and After a Targeted Social Rejection: Differences Among Girls With and Without Suicidal Ideation and Behavior Histories

BACKGROUND

Suicidal thoughts and behaviors (STBs) are common among adolescent girls and increase risk for suicide death. Emotion regulation difficulties are linked with STBs, particularly in response to targeted social rejection. However, neural correlates of this link have not been investigated and may identify novel targets for interventions. Here, we examined neural correlates of emotion regulation before and after an experimentally delivered targeted social rejection in adolescent girls with STBs and girls without STBs (i.e., control participants).

METHODS

Girls (N = 138; age range, 9-15 years; mean [SD] age = 11.6 [1.79] years) completed a functional neuroimaging emotion regulation task. In the middle of the task, participants were socially rejected by an unfamiliar confederate whom the participants had elected to meet. Participants also completed a multimethod STB assessment.

RESULTS

Before rejection, girls with a history of STBs, compared with control participants, showed greater activation in the right superior frontal gyrus when passively viewing negative stimuli, and girls with suicidal behavior (SB) versus those without SB showed less activation in the right frontal pole during emotion regulation attempts. Following the rejection, girls with STBs, compared with control participants, showed greater activation in the right inferior frontal gyrus during emotion regulation.

CONCLUSIONS

Before social rejection, girls with SB versus without SB may not activate brain regions implicated in emotion regulation, suggesting a vulnerability to poor regulation at their baseline emotional state. After social rejection, girls with any history of STBs showed altered activation in a brain region strongly associated with inhibition and emotion regulation success, possibly reflecting increased effort at inhibiting emotional responses during regulation following stress exposure.

Anxious and depressive symptoms and health-related quality of life in a cohort of people who recently attempted suicide: A network analysis

BACKGROUND

Suicide is an international health concern with immeasurable impact from the perspective of human and social suffering. Prior suicide attempts, anxious and depressive symptoms, and relatively lower health-related quality of life (HRQoL) are among the most replicated risk factors for suicide. Our goal was to visualize the distribution of these features and their interconnections with use of a network analysis approach in individuals who recently attempted suicide.

METHODS

Individuals with a recent suicide attempt were recruited from nine University Hospitals across Spain as part of the SURVIVE cohort study. Anxious and depressive symptoms, and perceived HRQoL were included in the network analysis. Network structures were estimated with the EBICglasso model. Centrality measures and bridge symptoms connecting communities were explored. Subnetworks comparing younger and older individuals, and women and men were analyzed.

RESULTS

A total of 1106 individuals with a recent suicide attempt were included. Depressed mood was the symptom with the greatest influence in the overall network, followed by anxiety symptoms such as feeling nervous, worrying, restless, and having difficulties to relax. Perceived general health was associated with increased suicidal ideation in the whole sample. Older people showed a specific connection between perceived general health and depressed mood.

LIMITATIONS

The cross-sectional design does not allow determination of established causality.

CONCLUSIONS

Depressed mood was the core network's symptom and, therefore, an important target in the management and prevention of suicide. HRQoL had more influence on the network of older populations, in which it should be a primary focus.

Association of METS-IR index with depressive symptoms in US adults: A cross-sectional study

BACKGROUND

An association between insulin resistance (IR) and depression has been identified in recent years. The purpose of this study was to examine the relationship between IR and depression in the general population.

METHODS

The population for this cross-sectional study consisted of adults participating in the National Health and Nutrition Examination Survey (NHANES) between 2005 and 2018. Insulin sensitivity was assessed using the Metabolic Score for IR (METS-IR) index, while depression was evaluated using the Patient Health Questionnaire (PHQ)-9. Logistic regression analyses, subgroup analyses, and dose-response curves were conducted to assess the association between the METS-IR index and depression.

RESULTS

A total of 13,157 adults aged over 20 years were included in this study. After adjusting for potential confounders, it was observed that each unit increase in the METS-IR index was associated with a 1.1 percentage point increase in the prevalence of depression (OR = 1.011; 95 % CI: 1.008, 1.014). Patients in the 4th quartile of the METS-IR index had a higher likelihood of depression compared to those in the 1st quartile (OR = 1.386, 95 % CI: 1.239, 1.549). Stratified analyses demonstrated consistent results in all subgroups, except for men, patients under 40 years of age, and those with a history of cancer. Dose-response curves indicated a nonlinear relationship between the METS-IR index and the risk of depression, with an inflection point value of 32.443 according to threshold effect analysis.

CONCLUSIONS

Our findings suggest that higher METS-IR scores are associated with an increased likelihood of experiencing depressive symptoms among U.S. adults.

Anxiety symptoms preceding suicide: A Swedish nationwide record review

BACKGROUND

The literature on the relationship between anxiety and suicidal behaviors is limited and findings are mixed. This study sought to determine whether physicians noted anxiety symptoms and suicidality in their patients in the weeks and months before suicide.

METHODS

Data were derived from a nationwide medical record review of confirmed suicides in Sweden in 2015. Individuals with at least one documented physician consultation in any health care setting during 12 months before suicide (N = 956) were included. Clinical characteristics were compared between decedents with and without a notation of anxiety symptoms. Odds ratios were calculated to estimate associations between anxiety symptoms and suicidality in relation to suicide proximity.

RESULTS

Anxiety symptoms were noted in half of individuals 1 week before suicide. Patients with anxiety were characterized by high rates of depressive symptoms, ongoing substance use issues, sleeping difficulties, and fatigue. After adjustment for mood disorders, the odds of having a notation of elevated suicide risk 1 week before death were doubled in persons with anxiety symptoms. Associations were similar across time periods (12 months - 1 week). Two-thirds had been prescribed antidepressants at time of death.

LIMITATIONS

Data were based on physicians' notations which likely resulted in underreporting of anxiety depending on medical specialty. Records were not available for all decedents.

CONCLUSIONS

Anxiety symptoms were common in the final week before suicide and were accompanied by increases in documented elevated suicide risk. Our findings can inform psychiatrists, non-psychiatric specialists, and GPs who meet and assess persons with anxiety symptoms.

Suicidal ideation, suicide plans and suicide attempts among Australian adults: Findings from the 2020-2022 National Study of Mental Health and Wellbeing

OBJECTIVE

This study aimed to describe the epidemiology of suicidal ideation, suicide plans and suicide attempts, examine services received for suicide attempts, and explore the relationship between suicide attempts and self-harm without suicidal intent.

METHODS

We used survey data from the 2020-2022 National Study of Mental Health and Wellbeing, which involved a nationally representative sample of Australian adults aged 16-85 (n = 15,893). Comparisons were made with the 2007 National Study of Mental Health and Wellbeing (n = 8841).

RESULTS

In 2020-2022, the proportions of adults who had experienced suicidal ideation, suicide plans and suicide attempts during their lifetime were 16.6%, 7.5% and 4.9%, respectively. The proportions who had experienced these in the past 12 months were 3.3%, 1.1% and 0.3%. The odds of experiencing suicidal ideation and making a suicide plan were significantly higher in 2020-2022 than in 2007. Groups at heightened risk of suicidal ideation, suicide plans and/or suicide attempts in the previous 12 months were males, young people, people who were gay, lesbian, or bisexual or used some other term to describe their sexual identity, people outside the labour force, people from disadvantaged areas and people with mental disorders. Two-fifths of those who attempted suicide during the previous 12 months did not use health services following their attempt, and two-thirds also self-harmed without suicidal intent.

CONCLUSION

The implications of these findings for the forthcoming National Suicide Prevention Strategy are discussed. Suicidal thoughts and behaviours confer risk for suicide and are significant problems in their own right. Their prevention requires a strong whole-of-government response.

Suicide risk after discharge from in-patient psychiatric care: A 15-year retrospective cohort study of individual patient data

BACKGROUND

Suicide rates are known to be increased in patients after discharge from in-patient psychiatric treatment. However, evidence on risk factors for suicide within this patient group are contradictory. Thus, this study aims to investigate suicide after discharge from a sizeable psychiatric care facility to determine associated risk factors.

METHODS

Data on individual patient level from a 15-year single-centre cohort were linked to data from the national death registry and cumulative incidence rates were calculated applying competing risk models. Independent variables included the patients' sex, age at admission, diagnosis, and length of admission. For each of these factors, subdistribution hazards ratios were calculated using a Fine-Gray model.

RESULTS

In our sample of 18,425 discharges, when using patients with the diagnosis of substance-use-disorders as a comparator, a significant increase in hazard of post-discharge suicide for male sex (SHR = 1.67;p = 0.037) as well as the discharge diagnoses of affective disorders (SHR = 3.56;p = 0.017) and neurotic stress and somatoform disorders (SHR = 3.73;p = 0.024) were found. Interestingly, the hazard of suicide significantly decreased in more recent discharges (SHR = 0.93;p = 0.006). No statistically significant association of the length of admission with the suicide risk was found (SHR = 0.98;p = 0.834).

LIMITATIONS

Suicides may have been mis-identified as natural death in the national death register.

CONCLUSION

Male sex and distinct diagnoses were associated with an increased risk for suicide after discharge from a psychiatric care institution. The markedly increased suicide risk within this patient collective highlights the need for the development of tools to assess suicidal behaviour in this group of patients reliably.

Chronic physical conditions and suicidal ideation: a population-level analysis of Canadian school-attending young adults

BACKGROUND

Students who identify with a chronic physical condition are a growing population and their conditions may be associated with poor mental well-being.

AIM

To compare suicidal ideation prevalence between Canadian school-attending young adults with and without a chronic physical condition. We hypothesized that students living with a chronic condition have a higher likelihood of experiencing suicidal ideation.

METHODS

A cross-sectional study was conducted using a nationally representative sample of 2297 Canadian school-attending young adults (ages 15-29 years) from the 2012-13 Canadian Community Health Survey-Mental Health (CCHS-MH). Survey-weighted logistic regression and sensitivity analyses were performed to estimate the likelihood of experiencing suicidal ideation between students with and without a chronic physical condition.

RESULTS

Approximately 14.3% (n = 329) students experienced suicidal ideation at some point. Students living with a physical chronic condition demonstrated 1.65 (95% CI: 1.14, 2.39) times higher odds of experiencing suicidal ideation, compared to students not living with a chronic physical condition.

CONCLUSIONS

Suicide prevention and health promotion are important considerations for campus health providers and administrators when planning services and accommodations for students living with chronic physical conditions.

Lifetime Suicide Attempts in Otherwise Psychiatrically Healthy Individuals

Importance

Not all people who die by suicide have a psychiatric diagnosis; yet, little is known about the percentage and demographics of individuals with lifetime suicide attempts who are apparently psychiatrically healthy. If such suicide attempts are common, there are implications for suicide risk screening, research, policy, and nosology.

Objective

To estimate the percentage of people with lifetime suicide attempts whose first attempt occurred prior to onset of any psychiatric disorder.

Design, Setting, and Participants

This cross-sectional study used data from the US National Epidemiologic Study of Addictions and Related Conditions III (NESARC-III), a cross-sectional face-to-face survey conducted with a nationally representative sample of the US civilian noninstitutionalized population, and included persons with lifetime suicide attempts who were aged 20 to 65 years at survey administration (April 2012 to June 2013). Data from the NESARC, Wave 2 survey from August 2004 to September 2005 were used for replication. Analyses were performed from April to August 2023.

Exposure

Lifetime suicide attempts.

Main Outcomes and Measures

The main outcome was presence or absence of a psychiatric disorder before the first lifetime suicide attempt. Among persons with lifetime suicide attempts, the percentage and 95% CI of those whose first suicide attempt occurred before the onset of any apparent psychiatric disorders was calculated, weighted by NESARC sampling and nonresponse weights. Separate analyses were performed for males, females, and 3 age groups (20 to <35, 35-50, and >50 to 65 years).

Results

In the total sample of 36 309 respondents, 1948 persons had lifetime suicide attempts; 66.8% (95% CI, 64.1%-69.4%) were female, and 6.2% (95% CI, 4.9%-7.4%) had no apparent lifetime psychiatric diagnoses when surveyed. In addition, 13.4% (95% CI, 11.6%-15.2%) made their first suicide attempt prior to psychiatric disorder onset. Thus, an estimated 19.6% of respondents first attempted suicide without an antecedent psychiatric disorder. No significant age or sex differences were detected in the percentage of those with lifetime suicide attempts absent psychiatric disorders, although females were more likely than males to attempt suicide in the year of psychiatric disorder onset (14.9% [95% CI, 12.5%-17.3%] vs 8.6% [95% CI, 6.0%-11.2%]; P < .001), and attempts were less frequent among those older than 50 to 65 years (3.9% [95% CI, 3.5%-4.4%] vs 6.1% [95% CI, 5.4%-6.8%] for 35-50 years and 6.2% [95% CI, 5.6%-6.9%] for 20 to <35 years; P < .001).

Conclusions and Relevance

In this study, an estimated 19.6% of individuals who attempted suicide did so despite not meeting criteria for an antecedent psychiatric disorder. This finding challenges clinical notions of who is at risk for suicidal behavior and raises questions about the safety of limiting suicide risk screening to psychiatric populations.

Moderate Alcohol Consumption Increases the Risk of Clinical Relapse in Male Depressed Patients Treated with Serotonin-Norepinephrine Reuptake Inhibitors

BACKGROUND

While depression can be associated with multiple comorbidities, the association between depression and liver injury significantly increases the mortality risk. The aim of this study was to evaluate if moderate alcohol intake affects the rate of clinical relapses in patients treated with antidepressants as monotherapy.

METHODS

We assessed, over a period of 30 months, the clinical records of 254 patients with depressive disorder, of either gender, without additional pathologies, receiving monotherapy treatment with antidepressants. Thirty-three patients with alcohol abuse, alcoholism or significant cognitive impairment were excluded. The medical and psychiatric history, medication and liver enzyme values were collected and analyzed.

RESULTS

Out of the 221 patients who met the inclusion criteria, 78 experienced relapses of depression. The rate of relapse did not correlate with the levels of liver enzymes. Alcohol consumption, as objectified based on GGT levels and the AST/ALT ratio, suggested that men had higher alcohol intake compared to women. Patients treated with serotonin-norepinephrine reuptake inhibitors (SNRIs) with elevated AST levels were approximately 9 times more likely to relapse, while the ones with elevated GGT had a 5.34 times higher risk. While GGT levels remained a marker for relapse in men with elevated GGT, ALT and not AST proved to be a better risk indicator for relapses in male patients.

CONCLUSION

The use of SNRIs in depressed male patients with moderate alcohol intake should be carefully considered, as they might be susceptible to higher risks of relapse compared to alternative antidepressant therapies.

U-shaped association between fasting blood glucose and suicide attempts in Chinese patients with first-episode drug-naïve major depressive disorder

BACKGROUND

Evidence regarding the relationship between fasting blood glucose (FBG) and suicide attempts (SA) in patients with major depressive disorder (MDD) was limited. Therefore, the objective of this research was to investigate whether FBG was independently related to SA in Chinese patients with first-episode drug-naïve (FEDN) MDD after adjusting for other covariates.

METHODS

The present study was a cross-sectional study. A total of 1718 participants (average age: 34.9 ± 12.4 years, 65.8% females) with FEDN MDD were involved in a hospital in China from September 2016 to December 2018. Multiple logistic regression analysis and smooth curve fitting were used to estimate the association between FBG and the risk of SA. The threshold effect was examined by the two-piecewise linear regression model. Interaction and stratified analyses were conducted according to sex, education, marital status, comorbid anxiety, and psychotic symptoms.

RESULTS

The prevalence of SA in patients with FEDN MDD was 20.1%. The result of fully adjusted binary logistic regression showed FBG was positively associated with the risk of SA (odds ratio (OR) = 1.62, 95% CI: 1.13-2.32). Smoothing plots also revealed a nonlinear relationship between FBG and SA, with the inflection point of FBG being 5.34 mmol/l. The effect sizes and the confidence intervals on the left and right sides of the inflection point were 0.53 (0.32-0.88, P = 0.014) and 1.48 (1.04-2.10, P = 0.030), respectively.

CONCLUSIONS

A U-shaped relationship between FBG and SA in FEDN MDD patients was found, with the lowest risk of SA at a FBG of 5.34 mmol/l, indicating that both the lower and higher FBG levels may lead to an increased risk of SA.

Machine learning approach for the development of a crucial tool in suicide prevention: The Suicide Crisis Inventory-2 (SCI-2) Short Form

The Suicide Crisis Syndrome (SCS) describes a suicidal mental state marked by entrapment, affective disturbance, loss of cognitive control, hyperarousal, and social withdrawal that has predictive capacity for near-term suicidal behavior. The Suicide Crisis Inventory-2 (SCI-2), a reliable clinical tool that assesses SCS, lacks a short form for use in clinical settings which we sought to address with statistical analysis. To address this need, a community sample of 10,357 participants responded to an anonymous survey after which predictive performance for suicidal ideation (SI) and SI with preparatory behavior (SI-P) was measured using logistic regression, random forest, and gradient boosting algorithms. Four-fold cross-validation was used to split the dataset in 1,000 iterations. We compared rankings to the SCI-Short Form to inform the short form of the SCI-2. Logistic regression performed best in every analysis. The SI results were used to build the SCI-2-Short Form (SCI-2-SF) utilizing the two top ranking items from each SCS criterion. SHAP analysis of the SCI-2 resulted in meaningful rankings of its items. The SCI-2-SF, derived from these rankings, will be tested for predictive validity and utility in future studies.

Intentional Self-Harm and Death by Suicide in Body Dysmorphic Disorder: A Nationwide Cohort Study

BACKGROUND

Body dysmorphic disorder (BDD) is thought to be associated with considerable suicide risk. This nationwide cohort study quantified the risks of intentional self-harm-including nonsuicidal self-injuries and suicide attempts-and death by suicide in BDD.

METHODS

Individuals with a validated ICD-10 diagnosis of BDD in the Swedish National Patient Register, registered between January 1, 1997, and December 31, 2020, were matched with 10 unexposed individuals (i.e., without BDD) from the general population on birth year, sex, and county of residence. Conditional Poisson regression models estimated incidence rate ratios and 95% CIs for intentional self-harm. Stratified Cox proportional hazards models estimated hazard ratios and 95% CIs for death by suicide. Models adjusted for sociodemographic variables and lifetime psychiatric comorbidities.

RESULTS

Among 2833 individuals with BDD and 28,330 unexposed matched individuals, 466 (16.45%) and 1071 (3.78%), respectively, had at least 1 record of intentional self-harm during the study period (incidence rate ratio = 3.37; 95% CI, 3.02-3.76). In the BDD group, about two-thirds (n = 314; 67%) had their first recorded self-harm event before their first BDD diagnosis. A total of 17 (0.60%) individuals with BDD and 27 (0.10%) unexposed individuals died by suicide (hazard ratio = 3.47; 95% CI, 1.76-6.85). All results remained robust to additional adjustment for lifetime psychiatric comorbidities. A higher proportion of individuals with BDD who died by suicide had at least 1 previous record of intentional self-harm compared with unexposed individuals (52.94% vs. 22.22%; p = .036).

CONCLUSIONS

BDD was associated with a 3-fold increased risk of intentional self-harm and death by suicide.

Risk of suicide attempts and intentional self-harm on alprazolam

BACKGROUND

From 2000-2021, U.S. suicide deaths have risen 36 %. Identification of pharmacological agents associated with increased suicide risk and safer alternatives may help reduce this trend.

METHODS

An exposure-only within-subject time-to-event pharmacoepidemiologic study of the dynamic association between alprazolam treatment and suicide attempts over 2-years. Parallel analyses were conducted for diazepam, lorazepam and buspirone. Data for 2,495,520 patients were obtained from U.S. private insurance medical claims MarketScan from 2010 to 2019.

FINDINGS

Alprazolam was associated with over a doubling of risk of suicide attempts (HR=2.21, 95 % CI=2.06,2.38). A duration-response analysis for the modal dose (0.5 mg) revealed a 5 % increase in suicidal events per additional month of treatment (HR=1.05, 95 % CI=1.04,1.07). Parallel analyses with long-acting (diazepam) and short-acting (lorazepam), found similar associations (diazepam HR=2.87, 95 % CI=2.56,3.21; lorazepam HR=1.83, 95 % CI=1.69,2.00), whereas the non-benzodiazepine anxiolytic, buspirone, showed significantly less risk (HR=1.25, 95 % CI=1.13,1.38), and no increased risk in patients with an attempt history (HR=1.05, 95 % CI=0.70,1.59).

INTERPRETATION

This study confirmed an earlier signal linking alprazolam to increased suicide attempt risk. The increased risk extends to benzodiazepines in general, regardless of half-life and risk of withdrawal seizure. Buspirone appears to be a safer treatment than benzodiazepines, particularly in patients at increased risk for suicide.

On the Selection of Item Scores or Composite Scores for Clinical Prediction

Recent shifts to prioritize prediction, rather than explanation, in psychological science have increased applications of predictive modeling methods. However, composite predictors, such as sum scores, are still commonly used in practice. The motivations behind composite test scores are largely intertwined with reducing the influence of measurement error in answering explanatory questions. But this may be detrimental for predictive aims. The present paper examines the impact of utilizing composite or item-level predictors in linear regression. A mathematical examination of the bias-variance decomposition of prediction error in the presence of measurement error is provided. It is shown that prediction bias, which may be exacerbated by composite scoring, drives prediction error for linear regression. This may be particularly salient when composite scores are comprised of heterogeneous items such as in clinical scales where items correspond to symptoms. With sufficiently large training samples, the increased prediction variance associated with item scores becomes negligible even when composite scores are sufficient. Practical implications of predictor scoring are examined in an empirical example predicting suicidal ideation from various depression scales. Results show that item scores can markedly improve prediction particularly for symptom-based scales. Cross-validation methods can be used to empirically justify predictor scoring decisions.

The Cyclical Battle of Insomnia and Mental Health Impairment in Firefighters: A Narrative Review

The occupational requirements of full-time non-administrative firefighters include shift-work schedules and chronic exposure to alerting emergency alarms, hazardous working conditions, and psychologically traumatic events that they must attend and respond to. These compiling and enduring aspects of the career increase the firefighter's risk for insomnia and mental health conditions compared to the general population. Poor sleep quality and mental health impairments are known to coincide with and contribute to the symptom severity of one another. Thus, it is important to determine approaches that may improve sleep and/or mental health specifically for firefighters, as their occupation varies in many aspects from any other occupation. This review will discuss symptoms of insomnia and mental health conditions such as PTSD, anxiety, depression, substance abuse, and suicide in firefighters. The influencing factors of sleep and mental health will be examined including anxiety sensitivity, emotional regulation, and distress tolerance. Current sleep and mental health interventions specific to full-time firefighters are limited in number; however, the existing experimental studies will be outlined. Lastly, this review will provide support for exploring exercise as a possible intervention that may benefit the sleep and mental health of this population.

Posttraumatic Stress Disorder, Suicidal ideation, and Stress: The Moderating Role of Dysfunctional and Recovery Cognitions

OBJECTIVE

Trauma and stressor-related behavioral health conditions are prevalent in military populations and have become a major public health concern in recent years. Individuals who commonly report suicidal ideation often have comorbid mental health diagnoses (i.e., posttraumatic stress disorder; PTSD). However, the mechanisms associated with stress, suicidal ideation, and PTSD are unclear.

METHOD

The present study examined the moderating role of dysfunctional and recovery cognitions between (i) PTSD and suicidal ideation, and (ii) stress and suicidal ideation in two distinct samples. Sample 1 was composed of civilians and military personnel (N = 322). Sample 2 was composed of (N = 377) student service members and veterans (SSM/Vs).

RESULTS

In Study 1, we found that low recovery cognitions at higher and moderate levels of PTSD symptoms were significantly associated with increased suicidal ideation. High dysfunctional cognitions were significantly associated with suicidal ideation at higher levels of PTSD symptoms. In Study 2, we found no differences in any level of recovery cognitions at low and moderate stress levels with suicidal ideation. Higher levels of stress were associated with high dysfunctional cognitions and suicidal ideation.

CONCLUSION

Promoting higher levels of recovery cognitions and reducing dysfunctional cognitions are important in addressing stress, suicidal ideation, and comorbid conditions such as PTSD. Future research should focus on examining the clinical utility of the Dispositional Recovery and Dysfunction Inventory (DRDI) in other populations (i.e., firefighters and paramedics). This could contribute to efforts of suicide prevention and the promotion of the well-being of individuals experiencing suicidal ideation.

The relationship between chronotype, psychological pain, problematic social media use, and suicidality among university students in Turkey

Chronotype has been extensively linked to various psychological outcomes, including suicide, which significantly impacts the mortality rate among young adults worldwide. Research on the extent of these links is still ongoing. This cross-sectional study aimed to explore the complex relationships between chronotype, internet addiction, problematic social media use (PSMU), psychological pain, and suicidality in a student population. A total of 571 Turkish students (65.3% female, mean age 20.3 ± 1.63 years) completed the following scales: the Suicide Probability Scale (SPS), the Mee-Bunney Psychological Pain Assessment Scale (MBPPAS), the Social Media Disorder Scale (SMDS), the Internet Addiction Test (IAT), the Morningness - Eveningness Questionnaire (MEQ), and the Hospital Anxiety and Depression Scale (HADS). The results showed that the relationship between chronotype and suicidality was partially mediated by SMDS and MBPPAS but not by anxiety, depression, or IAT. These findings suggest that psychological pain and PSMU may be important factors that contribute to suicidality in evening-type individuals. These findings have significant implications for the development of interventions aimed at reducing suicidality among evening-type individuals. By addressing the underlying factors of psychological pain and PSMU, it may be possible to mitigate the increased risk of suicidality among this population.

Suicide attempts in the adult Mexican population: an analysis of sociodemographic characteristics and associated factors

OBJECTIVE

Suicide is the culmination of a process or continuum known as suicidal behavior that proceeds from ideation and planning to attempt. The objective was to estimate the prevalence of suicide attempts in the adult Mexican population and to analyze their main associated factors.

METHODS

We conducted an observational, cross-sectional, and descriptive study with information from the National Health and Nutrition Survey (2018). Self-reported lifetime suicide attempt was used in the analysis. We analyzed depression, obesity, tobacco smoking, and alcohol consumption as suicide attempt-associated factors using a multivariate logistic regression model.

RESULTS

The prevalence of adult suicide attempt was 2.0% (95%CI 1.8-2.2) and it was higher among women (2.4%; 95%CI 2.2-2.8) and young people (2.9%; 95%CI 2.4-3.4). Low education (OR=1.6; 95%CI 1.2-2.2), being single (OR=1.3; 95%CI 1.0-1.6), having obesity (OR=1.4; 95%CI 1.1-1.8), consumption of alcohol (OR=2.4; 95%CI 1.7-3.4) or tobacco smoking (OR=1.8; 95%CI 1.4-2.4), and having strong symptoms of depression (OR=10.1; 95%CI 6.2-16.3) were associated with a higher prevalence of suicide attempts.

CONCLUSION

These results help better understand suicidal behavior in Mexico and identify the factors that increase the likelihood of suicide attempts, which is essential to help reduce suicide mortality. This research is crucial for developing early interventions and prevention programs aimed at reducing suicide's public health burden.

Generalized anxiety and mild anxiety symptoms in U.S. military veterans: Prevalence, characteristics, and functioning

Generalized anxiety disorder (GAD) is a mental disorder characterized by excessive anxiety and worries that impair daily functioning. While prior work has documented the prevalence and correlates of GAD and subthreshold GAD (SGAD) in clinical samples, contemporary data on the epidemiology of anxiety symptoms are lacking, particularly in higher-risk populations such as military veterans. To address this gap, we analyzed data from a large, nationally representative sample of U.S. veterans to examine the: prevalence of probable GAD and mild anxiety symptoms measured using a brief screener; sociodemographic and military characteristics associated with anxiety symptoms; and psychiatric and functional correlates of anxiety symptoms. Results revealed that a total of 7.9% (95% confidence interval [CI] = 6.7-9.3%) and 22.1% (95%CI = 20.5-23.9%) of veterans screened positive for probable GAD and mild anxiety symptoms, respectively. Relative to veterans without anxiety symptoms, those with probable GAD and mild anxiety symptoms were younger, more likely to be female and racial/ethnic minorities, and more likely to have served 2+ deployments. Further, a "dose-response" association was observed between anxiety symptom severity and clinical correlates, with robust associations observed between probable GAD and poorer mental health, suicidal thoughts and behaviors, and functional impairment. Mild anxiety symptoms showed intermediate magnitude associations with these outcomes. Results of this study suggest that 3-of-10 U.S. veterans report anxiety symptoms. While the use of a brief screener to assess mild anxiety symptoms and probable GAD is limited, findings underscore the importance of a dimensional approach to assessing anxiety symptoms and associated clinical and functional characteristics in veterans.

Can digital self-harm relate to suicidal thoughts and behaviors beyond physical self-harm?

BACKGROUND

Digital self-harm (DiSH) is a recently identified self-harm distinct from physical self-harm (PSH, also known as non-suicidal self-injury, NSSI). Although prior research has shown that DiSH was associated with suicidal thoughts and behaviors (STBs), it was still unclear whether DiSH has a unique association with STBs after controlling for PSH.

METHOD

A cross-sectional survey was conducted on Chinese college students. The lifetime prevalence of DiSH and PSH, the functions of DiSH, recent suicide experiences (including suicide ideation, plans, and attempts), anxiety and depression were examined. A total of 5281 participants were analyzed.

RESULTS

A total of 10.83% of participants had ever engaged in DiSH, and 1.59% of participants reported histories of both DiSH and PSH. Among participants with a history of PSH, 30.11% engaged in DiSH. Engagement in DiSH was significantly associated with suicide ideation (SI), suicide plans (SPs), and suicide attempts (SAs). More importantly, participants who engaged in both DiSH and PSH showed higher odds of SI and SPs compared to those who had only engaged in PSH. Regarding the functions of DiSH, using DiSH for self-punishment was associated with SI and SPs, and using DiSH for sensation seeking was associated with SPs and SAs. Similar results were found for the association between DiSH and anxiety and depression.

CONCLUSIONS

Our findings suggest that DiSH has a unique association with the risks of STBs beyond PSH. Early identification and intervention for DiSH are crucial, even for individuals who already engage in PSH.

Association between social withdrawal and suicidal ideation in patients with major depressive disorder: The mediational role of emotional symptoms

BACKGROUND

The study was designed to investigate the associations between social withdrawal, emotional symptoms, and suicide ideation in patients with major depressive disorder (MDD).

METHODS

This cross-sectional study included 2678 MDD patients from the National Survey on Symptomatology of Depression (NSSD). Differences in the sociodemographic factors, clinical characteristics, suicide ideation, and emotional symptoms were compared in patients with different frequencies of social withdrawal. Pearson correlation, multiple linear regression analysis, and mediation analysis were employed to assess the contribution of social withdrawal to suicide ideation.

RESULTS

MDD patients with a higher frequency of social withdrawal were prone to have a higher frequency of suicide ideation (p for trend <0.001) and history of suicide behavior (p for trend <0.001). Multiple linear regression analysis showed that there was a dose-response relationship between social withdrawal and suicide ideation in MDD patients, but this association became insignificant after adjusting for emotional symptoms. Mediation analysis suggested that all of the emotional symptoms had significant mediating effects on the association between social withdrawal and suicide ideation in MDD patients (p < 0.05). The magnitude of mediation varied between 4.3 % and 64.3 %, with the largest mediating effect in the feeling of despair (64.3 %), helplessness (41.2 %), and loneliness (40.0 %).

CONCLUSION

Our study provides evidence that social withdrawal was a common clinical presentation and it may increase the risk for suicide through emotional symptoms in MDD patients.

LIMITATIONS

Causal conclusions could not be drawn between social withdrawal, emotional symptoms, and suicide ideation because of the cross-sectional design of the study.

Occurrence and predictors of lifetime suicidality and suicidal ideation in autistic adults

LAY ABSTRACT

Over the past few years, more and more research is showing that many autistic people are at an increased risk for suicide. In this study, we asked participants from the Netherlands Autism Register, which is longitudinal register including individuals with autism, about their possible experiences with thoughts and feelings about suicide. Specifically, we looked at whether these thoughts and feelings in their lifetime and in the past month were related to various factors (such as their age, gender, and having psychiatric disorder diagnoses). We found that 80% of the participants had experienced thoughts about or even attempted to take their own life at least once throughout their lifetime. Furthermore, in a subgroup of participants, we found that the presence of a psychiatric disorder diagnosis, feelings of loneliness, and a higher number of autistic traits were associated with experiencing suicidal thoughts and feelings in their lifetime. For those who experienced these suicidal thoughts in the past month, we found that having (multiple) psychiatric disorder diagnoses and a higher number of autistic traits were related to more severe and frequent thoughts about suicide in the past month. Our findings show that additional factors in autistic individuals should be considered when assessing the suicide risk, and it brings us one step closer to understanding why suicide is more common for autistic people.

Psychiatric profiles in suicidal attempters: Relationships with suicide behaviour features

BACKGROUND

Suicide constitutes a major health concern worldwide, being a significant contributor of death, globally. The diagnosis of a mental disorder has been extensively linked to the varying forms of suicidal ideation and behaviour. The aim of our study was to identify the varying diagnostic profiles in a sample of suicide attempters.

METHODS

A sample of 683 adults (71.3% females, 40.10±15.74 years) admitted at a hospital emergency department due to a suicide attempt was recruited. Latent class analysis was used to identify diagnostic profiles and logistic regression to study the relationship between comorbidity profile membership and sociodemographic and clinical variables.

RESULTS

Two comorbidity profiles were identified (Class I: low comorbidity class, 71.3% of attempters; Class II: high comorbidity class, 28.7% of attempters). Class I members were featured by the diagnosis of depression and general anxiety disorder, and low comorbidity; by contrast, the high comorbidity profile was characterized by a higher probability of presenting two or more coexisting psychiatric disorders. Class II included more females, younger, with more depressive symptoms and with higher impulsivity levels. Moreover, Class II members showed more severe suicidal ideation, higher number of suicide behaviours and a greater number of previous suicide attempts (p<.01, for all the outcomes), compared to Class I members.

CONCLUSIONS

Psychiatric profiles may be considered for treatment provision and personalized psychiatric treatment in suicidal attempters as well as tackle suicide risk.

Stimulant medication and suicide mortality in attention-deficit hyperactivity disorder

Patients diagnosed with attention-deficit hyperactivity disorder (ADHD) are at an elevated risk for suicide. No prior work has assessed the association between stimulant prescriptions and death by suicide in this population. This retrospective cohort study included Department of Veterans Affairs patients with an active ADHD diagnosis that received stimulant medications between 2016 and 2019. We found that months with active stimulant medication prescription was associated with decreased risk of suicide mortality compared with months without stimulant medication (odds ratio 0.57, 95% CI 0.36-0.88). Our results suggest that prescribing stimulant medications for patients diagnosed with ADHD is associated with decreased risk of suicide mortality.

Barriers and facilitators to depression care among Latino men in a primary care setting: a qualitative study

BACKGROUND

In the United States, Latinos face a wide array of cultural and structural barriers to accessing and utilizing mental health care. Latino men specifically are at high risk of receiving inadequate mental health care, possibly due to additional obstacles they experience that are related to masculinity. Among men more generally, greater adherence to emotional control and self-reliance is associated with higher depression severity and less depression help-seeking. Men experience more stigma toward depression and help-seeking and are less likely to be diagnosed with depression than women. However, Latino men's barriers and facilitators to depression care remain largely unexplored. The objective of this study was to examine barriers and facilitators to depression care that are related to masculinity among English- and Spanish-speaking Latino men in a primary care setting.

METHODS

We used convenience and purposive sampling to recruit primary care patients who self-identified as Latino men, spoke English or Spanish, and screened positive for depressive symptoms on the Patient Health Questionnaire-2 or had a history of depression. Semi-structured interviews were conducted between December 2020 and August 2021. The interview guide examined views and experiences of depression, masculinity, and barriers and facilitators to engaging in depression care. Utilizing consensual qualitative research and thematic analysis informed by modified grounded theory, barriers and facilitators to depression care were identified.

RESULTS

We interviewed thirteen participants who varied in English proficiency, education, income, and country of origin. Barriers and facilitators were placed into three domains-Self-Recognition of Depression, Seeking Help for Depression, and Depression Diagnosis and Treatment. Participants described aspects of masculinity as barriers (emotional control and pressure to provide), facilitators (honesty, courage, collaboration, practicality, and responsibility), or both (self-reliance and autonomy).

CONCLUSIONS

Masculinity influences barriers and facilitators for depression care among Latino men at the levels of self-recognition, seeking help, and diagnosis and treatment. Clinicians may promote Latino men's engagement in depression care by understanding patients' values and framing depression care as affirming masculinity. Providing education to primary care physicians and other healthcare professionals on gender and depression and addressing structural barriers are essential to providing access to all who need depression care.

Factor structure, reliability, and validity of the revised Suicide Crisis Inventory in major depression: A multicentric Indian study

BACKGROUND

The revised Suicide Crisis Inventory (SCI)-2 is a self-report measure to assess the suicide crisis syndrome (SCS). We aimed to assess the factor structure, reliability, and validity of SCI-2 among adults with major depression.

METHODS

Using a cross-sectional design, between November 2021 and August 2022, the Hindi SCI-2, along with other self-report measures, was administered to Indian adult respondents clinically diagnosed with major depression across 24 centers in India. Confirmatory factor analysis was carried out to test the factor structure of SCI-2. Additionally, convergent, discriminant, and criterion validity were tested using bivariate or biserial correlations, as appropriate.

RESULTS

We obtained responses from 654 participants (Mean age = 36.9 ± 11.9 years, 50.2 % female). The SCI-2 fit both a one-factor (χ2[1769] = 14,150.74, p < .001, CFI = 0.98, RMSEA = 0.10), and five-factor solution (χ2[1759] = 13,130.83, p < .001,CFI = 0.98, RMSEA = 0.10) with the five-factor solution providing a significantly better fit. Internal consistencies of the SCI-2 total and subscale scores ranged from good to excellent. Most subscales significantly converged with each other and with other relevant measures although these associations were weak for thwarted belongingness and goal reengagement subscales. Small to moderate associations were noted in support of discriminant and criterion validity.

LIMITATIONS

We could not assess the predictive validity of SCI-2 for suicidal behaviors.

CONCLUSION

Consistent with prior data, the Hindi SCI-2 fit a five-factor solution and showed good psychometric properties. These findings support the use of SCI-2 to assess SCS among Indian adults with major depression.

Predictors of Suicidal Ideation and Continued Substance Use Problems Among Patients Receiving Methadone Maintenance Treatment Who Have Co-Occurring Cocaine Use Disorder

BACKGROUND

Persons with polysubstance use problems are at high suicide risk, which may complicate substance use treatment. The purpose of this study was to a) examine cross-sectional and longitudinal risk factors for suicidality among persons in methadone maintenance treatment who present with co-occurring cocaine use disorder and b) evaluate whether suicidality impacts substance use outcomes independently and differentially depending on treatment type (i.e. standard methadone care [SC] vs. contingency management plus standard care [CM + SC]).

METHODS

Data come from five randomized controlled trials of CM conducted within methadone clinics (N = 562). Participants were categorized (mutually exclusive) as no history of suicidality (56.4%, n=317), past suicidal ideation (SI; 11%, n=62), recent SI (3.6%, n=20), or lifetime suicide attempt (29%, n=163).

RESULTS

Suicidality groups differed by sex and baseline employment, income, trauma history, and psychosocial functioning. Suicide attempt history was positively associated with years of polysubstance use, prior drug treatments, and unintentional overdose history. Baseline psychological problem severity and emotional abuse history were associated with SI likelihood 12 weeks later. Past SI was associated with longer durations of abstinence than no suicidality. Unexpectedly, those with recent SI reported lower drug use severity at 12 week if they received SC compared to CM + SC. Effects were small to medium.

CONCLUSIONS

Despite greater polysubstance use history, patients with suicide attempts did not show worse substance use outcomes than persons without suicidality. Patients with past SI fared better than those without suicidality on abstinence over 12 wk. Methadone clinics could be key points of entrance and continued services for suicide prevention.

Evidence for the biopsychosocial model of suicide: a review of whole person modeling studies using machine learning

Background

Traditional approaches to modeling suicide-related thoughts and behaviors focus on few data types from often-siloed disciplines. While psychosocial aspects of risk for these phenotypes are frequently studied, there is a lack of research assessing their impact in the context of biological factors, which are important in determining an individual's fulsome risk profile. To directly test this biopsychosocial model of suicide and identify the relative importance of predictive measures when considered together, a transdisciplinary, multivariate approach is needed. Here, we systematically review the emerging literature on large-scale studies using machine learning to integrate measures of psychological, social, and biological factors simultaneously in the study of suicide.

Methods

We conducted a systematic review of studies that used machine learning to model suicide-related outcomes in human populations including at least one predictor from each of biological, psychological, and sociological data domains. Electronic databases MEDLINE, EMBASE, PsychINFO, PubMed, and Web of Science were searched for reports published between August 2013 and August 30, 2023. We evaluated populations studied, features emerging most consistently as risk or resilience factors, methods used, and strength of evidence for or against the biopsychosocial model of suicide.

Results

Out of 518 full-text articles screened, we identified a total of 20 studies meeting our inclusion criteria, including eight studies conducted in general population samples and 12 in clinical populations. Common important features identified included depressive and anxious symptoms, comorbid psychiatric disorders, social behaviors, lifestyle factors such as exercise, alcohol intake, smoking exposure, and marital and vocational status, and biological factors such as hypothalamic-pituitary-thyroid axis activity markers, sleep-related measures, and selected genetic markers. A minority of studies conducted iterative modeling testing each data type for contribution to model performance, instead of reporting basic measures of relative feature importance.

Conclusion

Studies combining biopsychosocial measures to predict suicide-related phenotypes are beginning to proliferate. This literature provides some early empirical evidence for the biopsychosocial model of suicide, though it is marred by harmonization challenges. For future studies, more specific definitions of suicide-related outcomes, inclusion of a greater breadth of biological data, and more diversity in study populations will be needed.

Healthcare Utilization 12 Months Prior to Fatal and Non-fatal Suicidal Behaviour in Cape Town, South Africa

The purpose of this study was to characterize healthcare use for general care and mental health one year before suicidal behavior among individuals with fatal and non-fatal suicidal behavior (NFSB) in Cape Town, South Africa. We linked electronic health records of 484 participants from a case series of 93 completed suicides on whom forensic autopsies were performed at a mortuary in Cape Town, between August 2014 and January 2016; and 391 patients admitted to hospital following NFSB between June 2014 and March 2015, and between August 2015 and August 2017. Time from last healthcare visit to date of suicidal behavior (fatal or non-fatal) was calculated, and Kaplan Meier curves were used to compare the differences by psychiatric diagnoses and study group. Overall, 64.5% of completed suicides and 65.9% of NFSB patients sought general healthcare in the year before suicidal behavior. Most of these visits occurred at hospital outpatient clinics (40.8%) and primary healthcare facilities (31.3%). The prevalence of preexisting psychiatric diagnoses and the use of mental healthcare services was lower for individuals who completed suicide compared to NFSB patients. Common reasons for a healthcare visit among individuals who completed suicide were chronic disease and assault; and psychiatric illness (depression, bipolar, and/or substance use disorders), chronic disease and HIV among NFSB patients. A large proportion of individuals with fatal and NFSB interacted with the healthcare system before suicidal behavior. These findings suggest opportunities for suicide prevention at primary healthcare facilities, antiretroviral treatment centers and emergency departments.HIGHLIGHTSHealthcare access is common among individuals with fatal and NFSB in the year before suicidal behavior.The prevalence of mental disorder diagnoses is higher among NFSB patients than among individuals who completed suicide.A greater proportion of NFSB patients accessed mental healthcare services compared to individuals who completed suicide.

Childhood adversities and suicidal behavior in the general population. The cross-sectional PEGASUS-Murcia Project

INTRODUCTION

The aim of the present study is to estimate the lifetime prevalence of suicidal ideation, plans, and attempts in a regional representative sample and the association of these outcomes with sociodemographic factors, prior mental disorders, and childhood adversities.

MATERIAL AND METHODS

The PEGASUS-Murcia project is a cross-sectional survey of a representative sample of adults in Murcia that is part of the WHO World Mental Health Survey Initiative. The Composite International Diagnostic Interview (CIDI 3.0) was administered face-to-face to 2621 participants (67.4% response rate). The main outcomes were suicidal ideation, plans, and attempts. Lifetime prevalence, age of onset, and risk factors (sociodemographic variables, mental disorders, and childhood adversities) were examined using multiple discrete-time survival models.

RESULTS

Lifetime prevalence of suicidal ideation, plans and attempts were 8.0% (standard error, SE: 1.1), 2.1% (SE: 0.3), and 1.2% (SE: 1.1), respectively. Prevalence of any childhood adversities was 22.1% (SE: 1.3) in the total sample and, even higher, among those with suicide related outcomes (ranging between 36.8% and 53.7%). Female sex, younger age, prior (to onset of the outcome) lifetime prevalence of mood disorders, number of mental disorders, and exposure to childhood adversity were associated with significantly increased odds of suicidal ideation and plans.

CONCLUSIONS

Lifetime prevalence estimates of suicidality are similar to those in community epidemiological surveys. Childhood adversities and mental disorders, especially mood disorders, are important risk factors for suicidality. Early detection of these adversities and disorders should be targeted in suicide prevention programs.

Suicidality and nonsuicidal self-injury in females diagnosed with attention-deficit hyperactivity disorder - a narrative review

PURPOSE OF REVIEW

Attention deficit hyperactivity disorder (ADHD) is a common psychiatric disorder and is associated with an increased risk of suicidal behavior, especially in females. The differences in the presentation of ADHD in females, factors contributing to suicidality and the effects of therapeutic interventions are presented in this review to highlight the relationship between ADHD and suicidality and self-harm behavior.

RECENT FINDINGS

Impulsivity, an inherent symptom of ADHD, commonly acts as a risk factor of suicidality and is associated with both suicidal behavior and nonsuicidal self-injury. The combined subtype of ADHD, which typically is characterized by significant impulsivity, is linked with the highest vulnerability to suicide attempts. Female gender, lower educational attainment, comorbid substance abuse, a history of depression, and experience of childhood maltreatment were singled out as distinct factors that were independently linked to lifetime suicide attempts.

SUMMARY

The association of the ADHD and suicidality is gaining an increasing interest in recent years. Active suicide prevention is required in this population and it is crucial for clinicians and researchers to have access to the most current information in this field.

Risk Factors of Suicide Attempt among Adolescents with Suicide Ideation in Low- and Middle-Income Countries across the Globe

Suicide is a serious public health problem for adolescents. Based on the framework of ideation-to-action, it is important to examine the factors associated with the translation from suicide ideation to suicide attempt. The present study aimed to investigate the risk factors of suicide attempts among adolescents with suicide ideation in low-income and middle-income countries (LMICs). We analyzed data of students aged 12-18 years who participated in the 2009-2013 Global School-based Health Surveys (GSHS) in 39 LMICs. The Chi-square test was used to compare the prevalence of suicide attempts among participants with suicide ideation, the multilevel logistic regression model was used to identify significant factors associated with suicide attempts among suicide ideators. Among 22,655 adolescents with suicide ideation, 55.1% of them reported having made a suicide attempt in the past year. Loneliness, anxiety, alcohol use, and drug use were risk factors for suicide attempts among suicide ideators. Strategies should be implemented to reduce the likelihood of adolescents acting on their suicidal thoughts, such as community psychological crisis line, school-based mental health and skills training programs, and family support for adolescents with psychological problems.

Fluctuations in anger, depressive symptoms, and self-injurious thoughts and behaviors throughout partial hospitalization treatment

Self-injurious thoughts and behavior (SITB), including passive and active suicidal ideation (SI) and self-harm (SH) urges and behavior, are critical phenomena to predict and target during treatment. Partial hospital programs (PHP) provide unique opportunities to understand how negative affect (e.g., depression and anger) and SITB fluctuate daily. The current study aimed to explore associations between aspects of negative affect (depression and anger) and types of SITB throughout PHP treatment. PHP patients (N = 1625) who attend at least five days of treatment were included in the current sample. Anger-related symptoms, depressive symptoms, SH urges, SH occurrence, passive SI, and active SI were measured daily. A series of generalized linear mixed models were conducted to examine whether depressive and anger-related symptoms predicted SITB across patients (between-person) and throughout PHP treatment (within-person). At the between-person level, higher average depressive symptoms predicted greater severity of all forms of SITB, whereas higher average anger-related symptoms predicted greater severity SH urges and occurrence. At the within-person level, increases in depressive symptoms were associated with increases in all aspects of SITB, whereas increases in anger-related symptoms predicted increases in passive and active SI. The current study suggests that monitoring changes in negative affect throughout treatment can provide possible targets to reduce SITB.

Clinical predictors of suicidal ideation, suicide attempts and suicide death in depressive disorder: a systematic review and meta-analysis

Patients with depressive disorders are especially prone to suicide risk. Among the clinical predictors of suicidality, those specifically related to depressive disorders have not been accurately detailed. Our aim was to conduct a systematic review and meta-analysis of studies reporting longitudinal predictors of suicidal ideation, suicide attempts and suicide death within depression, including diagnostic subtypes, symptoms, clinical course, and assessment scales. A systematic search of the literature between 2001 and 2022 identified 4422 references, among which 19 studies providing 45 different predictors of suicidality met the inclusion criteria. Random effects meta-analyses were performed for 22 predictors, three for suicidal ideation, eleven for suicide attempts and eight for suicide death. Heterogeneity and publication bias were inspected through I2 tests and Egger's tests respectively. Meta-analysis results showed that severity of hopelessness predicted suicidal ideation and suicide attempts. History of suicide attempts, suicidal ideation, severe depression, and psychotic symptoms predicted subsequent suicide attempts and suicide death. Time to full remission and sleep disturbances were also found as relevant predictors of future suicide behaviours. This review specifies which predictors of suicidality within the clinical features of depression will help clinicians and policy makers to better prevent suicide risk in patients with depressive disorders. Further longitudinal studies are needed to reliably assess the predictive ability of our results and to analyse other possible clinical predictors to prevent suicidality, especially with regard to suicidal ideation.

A preliminary investigation of the relationship between internalized stigma, experiential avoidance, and suicidal thoughts and behaviors in college students

Objective: Examine the relationship between internalized stigma, experiential avoidance (EA), and suicidal thoughts and behaviors (STBs) in a sample of college students, and explore whether EA accounts for part of the relationship between internalized stigma, EA, and STBs.Participants: College students (N=78) completed online questionnaires about demographic information, internalized stigma, EA, and STBs.Results: A simple mediation model evaluated the indirect effect of internalized stigma on STBs through EA, controlling for the presence of a mental health disorder diagnosis. Results: Internalized stigma, STBs, and EA were all positively correlated. EA partially mediated the relationship between internalized stigma and STBs.Conclusion: Despite decades of research and prevention efforts, STBs remain a pervasive problem. There is an urgent need to identify modifiable predictors of STBs. Internalized stigma is a risk factor for STBs, and recent research suggests EA might be a mechanism linking internalized stigma and STBs. Our findings suggest EA might represent a modifiable mechanism of change in the context of both anti-stigmatization and suicide prevention programs.

Effects of estrogen and progesterone on neuroactive steroids and cytokines in patients with suicidality

BACKGROUND

In ovulating psychiatric patients experiencing suicidality, suicidal ideation (SI) often peaks perimenstrually. Our recent double-blind, placebo-controlled, crossover randomized clinical trial (RCT; NCT03720847) showed that perimenstrual administration of estradiol and progesterone (EP) can prevent this peak in SI and depressed mood. In this pre-registered follow-up analysis, we studied how the menstrual cycle and experimental manipulation affected two neurobiological systems associated with the menstrual cycle and suicide risk: GABAergic neuroactive steroids (NAS) and peripheral cytokines.

METHODS

In 26 psychiatric outpatients with natural menstrual cycles and past-month SI, we analyzed serum samples from three blood draws (midluteal, perimenstrual, midfollicular) per experimental condition (EP vs placebo) timed to a luteinizing hormone-surge ovulation test. Using gas chromatography/mass spectrometry (GC/MS), we measured the progesterone (P4)-derived pregnane NAS (3α,5α)- 3-hydroxypregnan20-one (3α,5α-THP), (3α,5β)- 3-hydroxypregnan-20-one (3α,5β-THP), (3α,5α)- 3,21-dihydroxypregnan-20-one (3α,5α-THDOC), (3α,5α)- 3-hydroxyandrostan-17-one (3α,5α-A), the androstane NAS (3α,5β)- 3-hydroxyandrostan-17-one (3α,5β-A), (3α,5α,17β)-androstane-3,17-diol (3α,5α-A-diol), (3α,5β,17β)-androstane-3,17-diol (3α,5β-A-diol), and their precursor pregnenolone. High sensitivity multiplex assay kits quantified peripheral cytokines IL-1β, IL-6, and TNF-α.

RESULTS

P4-derived NAS fluctuated in parallel with P4 and increased with exogenous perimenstrual administration of EP. Conversely, androstane NAS either did not fluctuate or fluctuated inversely from P4, and these NAS decreased with exogenous EP. Peripheral cytokines did not show cyclical patterns, but each significantly predicted SI, depressed mood, or anxiousness. Concomitant SSRI medication use predicted lower androstane NAS.

CONCLUSIONS

While preliminary and exploratory, our findings provide critical descriptive context for future studies. Further, our work presents menstrual cycle-related patterns for ten frequently-studied biomarkers, allowing for improved quality of comparisons involving naturally-cycling populations in research.

Prevalence and risk factors of suicide attempts in young, first-episode and drug-naïve Chinese Han outpatients with psychotic major depressive disorder

This study investigates the relationship between psychotic symptoms and suicide attempts in young first-episode, drug-naive Chinese Han outpatients diagnosed with Major Depressive Disorder (MDD). The prevalence of Psychotic Major Depressive Disorder (PMD) was found to be 8.3% among the enrolled MDD patients. The study assessed 1289 participants using various scales to evaluate the severity of clinical symptoms, including the CGI-S, the HAMD, the HAMA, and the PANSS positive subscale. Additionally, thyroid hormone and glucolipid metabolism indicators were examined. The findings indicate that among patients with PMD, 41.12% had recent suicide attempts, while 6.54% had previous suicide attempts. Patients who recently attempted suicide exhibited higher scores on the HAMA and CGI scales, along with elevated serum levels of Thyroid-Stimulating Hormone (TSH) and total cholesterol (TC), as well as higher systolic and diastolic blood pressure. Notably, TSH levels independently correlated with recent suicide attempts in PMD patients, with an impressive area under the receiver operating characteristic curve (AUROC) of 0.923. Furthermore, the subgroup of patients with previous suicide attempts displayed longer illness duration and higher HAMD scores. Duration of illness and HAMD were found to be independently associated with previous suicide attempts among PMD patients, with a combined predictive effect showing a robust AUROC of 0.910. In conclusion, this study highlights the significant prevalence of recent and previous suicide attempts among young Chinese Han outpatients with PMD. The identification of risk factors, especially the link between TSH levels and recent suicide attempts, offers valuable insights for clinicians to develop targeted interventions and preventive strategies for this vulnerable patient population.

Examining associations between value-behavior discrepancy guilt, anxiety, and suicide risk for Mexican descent college students: Resilience through self-compassion

OBJECTIVE

The present study examines self-compassion (SC) as a potential protective factor in the relationship between value-behavior discrepancy guilt (VBDG) and the mental health outcomes of anxiety and suicide risk in a sample of Mexican-descent college students.

METHOD

Participants consisted of 810 college students of Mexican descent. Students were recruited through a psychology participant pool and completed an online survey. Two regression analyses examined the direct effect of VBDG on anxiety symptoms and suicide risk with SC as a moderator.

RESULTS

Results indicated that high levels of SC were protective in the relationship between VBDG and mental health outcomes. On the other hand, lower levels of SC put one at risk for increased anxiety symptoms and higher suicide risk when they experience VBDG.

CONCLUSION

The study shows the need to develop interventions that cultivate a high sense of SC in Mexican-descent college students.

Risky business: Considerations of emotion regulation and high-risk behaviors in anxious adolescents

A growing body of empirical literature connects anxiety symptoms and high-risk suicidal and self-harming behaviors in youth. Emotion regulation (ER) processes and deficits have been identified as important factors in the etiology, maintenance, and treatment of both youth anxiety and high-risk behaviors. The present study assessed the association between these variables using an acute, socio-demographically diverse clinical sample of youth presenting to an outpatient mental health clinic. Ninety-nine youth aged 12-20 years old completed measures of anxiety symptoms, ER difficulties, and lifetime history of high-risk behaviors including non-suicidal self-injury (NSSI) and suicide attempts. Unadjusted analyses show that more severe anxiety symptoms were associated with more ER difficulties and history of risk behavior. Multivariate linear regression models considering age, sex, race/ethnicity, and risk history show that more severe anxiety symptoms remained significantly associated with more ER difficulties (p < 0.0001) and positive suicide attempt history (p < 0.01). Findings highlight the importance of integrating considerations of ER into the case conceptualization and treatment planning of high-risk, anxious youth to inform evidenced-based care with this population. The need for targeted, ongoing risk assessment with anxious youth to identify and mitigate risk is also demonstrated.