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Depression and suicide attempts are reported to be high among medical students. It has also been reported that depression, suicide attempts, and autistic traits may be significantly related. The aim of this study was to determine the suicide probability and autistic traits of medical students with and without depression symptoms, and to examine the relationship between depression symptoms, suicide probability, and autistic traits together in these students. This cross-sectional study was conducted among 313 medical students, 206 female, and 107 male, who, according to the sociodemographic form, did not have any current psychiatric diagnosis, chronic medical or neurological disorders requiring treatment, or regular use of psychotropic medications, and who completed the forms in full. All the study participants completed a sociodemographic form, the Beck depression inventory (BDI), the suicide probability scale (SPS), and the autism spectrum quotient (ASQ).The entire study sample was divided into 2 groups: students with and without symptoms of depression, based on BDI scores. In the multivariate analysis, independent predictors of depression symptoms were examined using logistic regression analysis. The BDI total points (z = -13.99, P < .001), SPS total points (z = 10.61, P < .001), and subscale points of hopelessness (z = -9.28, P < .001), suicidal ideation (z = 8.48, P < .001), negative self-evaluation (z = -9.26, P < .001), and hostility (z = -8.10, P < .001), and the ASQ subscale points of communication (z = -5.05, P < .001), social skills (z = -6.05, P < .001), imagination (z = -3.27, P = .001), attention shifting (z = -4.35, P < .001), and ASQ total points (z = -6.64, P < .001) were significantly higher for the participants with BDI total points above the cutoff value compared to those with BDI total points below the cutoff value. Statistically significant positive correlations were found between BDI total points and SPS total points (R = 0.710, P < .001), ASQ total points (R = 0.451, P < .001), and between ASQ total points and SPS total points (R = 0.534, P < .001). The contribution of age, gender, ASQ, and SPS total points to explaining depression symptoms was evaluated using logistic regression analysis. This analysis showed that the SPS total points could be a significant predictor of depression symptoms (B = 0.112, P < .001). The findings of this study showed that the probability of suicide and the ASQ total and subscale points of communication, social skills, imagination, and attention shifting were significantly higher in medical students with symptoms of depression compared to those without depressive symptoms. Given the important relationship between symptoms of depression, suicidality, and autistic traits, it is crucial to raise awareness of these issues among medical education departments, health practitioners, medical students, and to provide the necessary guidance and clinical support for medical students to address these problems., Competing Interests: The authors have no funding and conflicts of interest to disclose., (Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.)

Objective: An alternative metric for evaluating insulin resistance (IR) is the triglyceride glucose-body mass index (TyG-BMI). However, it is yet unclear how TyG-BMI and suicide attempts (SA) are related. The objective of this research was to explore the correlation between the TyG-BMI index and SA in individuals with untreated first-episode (UFE) major depressive disorder (MDD) in Shanxi Province., Methods: This cross-sectional study was conducted from September 2016 to December 2018 in the psychiatric outpatient clinic of Taiyuan General Hospital and included 1718 patients with UFE MDD, with a mean age of 34.9 ± 12.4 years. The relationship between TyG-BMI and SA was assessed using logistic regression modeling. We investigated threshold effects using a two-piecewise linear regression model., Results: Taking into consideration the potential influence of confounding variables, a comprehensive multivariate logistic regression analysis was conducted, which demonstrated the absence of a statistically significant association between the TyG-BMI index and the occurrence of SA, as evidenced by P-values that were all greater than 0.05. On the other hand, the visual analysis of the smoothed plots revealed a U-shaped relationship between the TyG-BMI index and the incidence of SA, with a notable inflection occurring at a TyG-BMI value of around 210. It was observed that the effect sizes flanking the inflection point, accompanied by their 95% confidence intervals, were 0.985 (95% CI: 0.972 to 0.999, P = 0.031) and 1.012 (95% CI: 1.003 to 1.047, P = 0.005), respectively., Conclusions: In UFE MDD patients, a U-shaped link was observed between TyG-BMI and SA, with the minimal SA incidence noted at a TyG-BMI level of 210, signifying that an augmented risk for SA might be connected to both diminished and augmented TyG-BMI levels., Competing Interests: Declarations Ethics approval and consent to participate The research involving human subjects received approval from the Institutional Review Board of the First Hospital, Shanxi Medical University (No. 2016-Y27). All studies were conducted in compliance with local laws and institutional guidelines. Participants provided their written informed consent to take part in the study. Additionally, written informed consent was obtained from the individual(s) for the publication of any potentially identifiable images or data included in this article. Consent for publication Not application. Competing interests The authors declare no competing interests., (© 2024. The Author(s).)

Background: Prevalence of suicidal behaviour increases rapidly in middle to late adolescence. Predicting suicide attempts across different ages would enhance our understanding of how suicidal behaviour manifests in this period of rapid development. This study aimed to develop separate models to predict suicide attempts within a cohort at middle and late adolescence. It also sought to examine differences between the models derived across both developmental stages., Methods: This study used data from the nationally representative Longitudinal Study of Australian Children (N = 2266). We selected over 700 potential suicide attempt predictors measured via self-report questionnaires, and linked healthcare and education administrative datasets. Logistic regression, random forests, and gradient boosting algorithms were developed to predict suicide attempts across two stages (mid-adolescence: 14-15 years; late adolescence: 18-19 years) using predictors sampled two years prior (mid-adolescence: 12-13 years; late adolescence: 16-17 years)., Results: The late adolescence models (AUROC = 0.77-0.88, F1-score = 0.22-0.28, Sensitivity = 0.54-0.64) performed better than the mid-adolescence models (AUROC = 0.70-0.76, F1-score = 0.12-0.19, Sensitivity = 0.40-0.64). The most important features for predicting suicide attempts in mid-adolescence were mostly school-related, while the most important features in late adolescence included measures of prior suicidality, psychosocial health, and future plans., Conclusions: To date, this is the first study to use machine learning models to predict suicide attempts at different ages. Our findings suggest that the optimal suicide risk prediction model differs by stage of adolescence. Future research and interventions should consider that risk presentations can change rapidly during adolescence., Competing Interests: Declaration of competing interest None., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)

Background: Suicide is a leading cause of death globally and a serious public health concern. Childhood trauma has been found to be associated with adult suicide vulnerability. Recent research has turned attention to investigating the role of attachment in the context of the childhood trauma-adult suicide relationship. The current study investigated for the first time whether attachment influences and moderates the childhood trauma-suicidality relationship, using a daily diary design, in the general population., Methods: 481 participants completed questionnaires assessing experiences of childhood trauma, attachment patterns, and history of suicidality. 243 participants continued to a daily diary phase where measures of daily stress, defeat and entrapment were completed for 7 consecutive days., Results: Higher levels of childhood trauma were associated with a history of suicide ideation and attempt and also higher levels of daily defeat, entrapment and stress during the 7 day study. Similarly, higher levels of attachment anxiety and avoidance were associated with a history of suicide ideation and attempt together with higher levels of daily defeat, entrapment and stress. However, the effects of childhood trauma on suicide history and on daily suicide vulnerability factors were not moderated by attachment anxiety or avoidance., Limitations: The measure of childhood trauma was a retrospective self-report tool that may be influenced by memory biases., Conclusions: Childhood trauma and insecure attachment are implicated in adult suicide risk. Interventions aimed at mitigating the negative effects of childhood trauma and insecure attachment should also incorporate components that target modifiable risk factors such as defeat, entrapment and stress., Competing Interests: Declaration of competing interest The authors have no conflict of interests to declare., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)

Background: To estimate the prevalence of lifetime e-cigarette use and explore the association between lifetime conventional and electronic cigarette use with suicidality among Chinese adolescents, focusing on sex and school-type differences., Methods: A total of 22,509 students from 432 classes in 80 schools were recruited in Guangdong Province using a multistage, stratified cluster, random sampling method in 2021. Self-report questionnaires were used to collect information. Multivariable logistic regression models were performed and stratification analysis was conducted. All analyses were weighted and adjusted for the complex survey design., Results: The weighted prevalence of lifetime e-cigarette use among adolescents in Guangdong Province was 8.7 % (4.3 % were dual users and 4.4 % were e-cigarette-only users) and 2.6 % were conventional-cigarette-only users. Lifetime e-cigarette-only users (AOR [Adjusted OR] =1.46, 95 % CI = 1.21-1.76), conventional-cigarette-only users (AOR = 1.97, 95 % CI = 1.58-2.46) and dual users (AOR = 1.67, 95 % CI = 1.38-2.02) were at a higher risk of suicidal ideation than non-users. Lifetime e-cigarette-only users (AOR = 2.03, 95 % CI = 1.53-2.70), conventional-cigarette-only users (AOR = 1.97, 95 % CI = 1.42-2.73), and dual users (AOR = 2.76, 95 % CI = 2.10-3.61) had a significantly higher risk of suicide attempts than non-users. After further analysis stratified by sex and school type, the associations of lifetime cigarette use patterns with suicidality slightly varied., Limitation: The cross-sectional study design and self-report information., Conclusion: The prevalence of e-cigarettes among Chinese adolescents is concerning. Lifetime conventional and e-cigarette use were associated with suicidality among Chinese adolescents, with sex and school type moderating these associations. Targeted measures to restrict cigarette use, including new tobacco product (e-cigarette) use, among adolescents are warranted., Competing Interests: Declaration of competing interest The authors report no competing interests., (Copyright © 2024 Elsevier B.V. All rights reserved.)

Background: Suicidal ideation (SI) and suicide attempts (SA) are risk factors for suicide which peak during adolescence; however, evidence focused on differences in SI and SA risk among racial/ethnic minority youth is limited despite increasing suicide rates among several racial/ethnic minority groups., Methods: We analyzed a representative sample of adolescents aged 12-17 with prior depressive symptoms (n = 32,617) from the cross-sectional National Surveys on Drug Use and Health (2008-2019). Survey-weighted adjusted logistic regressions estimated the association of race/ethnicity with self-reported lifetime SI and SA, controlling for sociodemographics, lifetime substance use, lifetime major depressive episode, and self-rated health., Results: Compared to white adolescents, Black and Hispanic adolescents had a 2.5 % (p = 0.04) and 4.2 % (p < 0.001) lower likelihood of reporting SI. However, among participants reporting SI, Black and Hispanic adolescents had a 3.2 % (p = 0.03) and 3.1 % (p = 0.03) higher likelihood of reporting SA than white adolescents. Multiracial adolescents were 5.9 % (p = 0.03) more likely to report SA than white adolescents., Limitations: Although racial/ethnic minority groups are less likely to self-report mental health symptoms, we could only assess SI/SA among adolescents self-reporting prior depressive symptoms, and we could only assess SA among adolescents self-reporting SI due to survey methods., Conclusions: Variation in the racial/ethnic distribution of suicidality supports theories conceptualizing separate pathways for SI and SA. This underscores the need for greater attention to racial/ethnic differences in suicide-related research, surveillance, and prevention efforts, including ensuring that mental health risk assessments directly evaluate SA in addition to SI in order to better identify high-risk racial/ethnic minority youth., Competing Interests: Declaration of competing interest Dr. Samples has received consulting fees from the American Society of Addiction Medicine and the Pew Charitable Trusts. All other authors have no competing interests to report., (Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)

Backgrounds: Patients with major depressive disorder (MDD) have a high rate of metabolic syndrome (MetS), which could worsen disease progression. One of the most serious progressions in MDD is suicide attempts (SAs). Previous studies have found gender differences in MetS and SAs among MDD patients respectively. Therefore, we aimed to explore gender differences of SAs in first-episode and drug-naïve (FEDN) MDD patients with comorbid MetS., Methods: 1718 outpatients with FEDN MDD were recruited. Depression, anxiety and psychotic symptoms were evaluated using the Hamilton Depression Scale (HAMD), Hamilton Anxiety Scale (HAMA) and Positive and Negative Syndrome Scale (PANSS) positive subscale, respectively. Blood sugar, blood fat, blood pressure and body mass index (BMI) were measured to evaluate MetS., Results: 34.4% patients with FEDN MDD were diagnosed as MetS and those subjects with or without MetS differed in the distribution of SAs and gender. In MetS subgroup, 29.5% and 29.7% of male and female subjects had SAs respectively, without significant differences. However, compared with non-suicide attempters, suicide attempters had higher level of blood pressure in female subjects, while there are no differences in any clinical variables in male subjects. Additionally, the influencing factors for SAs differed by gender. The HAMA scores and BMI were variables associated with SAs in male patients while HAMA scores, marital status and systolic blood pressure (SBP) were associated with SAs in female patients. Furthermore, the receiver operating characteristics (ROC) curves, demonstrating the combination all influencing factors by gender, showed good performance and model accuracy., Conclusions: In FEDN MDD patients with comorbid MetS, there were no gender differences in SAs. However, clinical characteristics and influencing factors of SAs differed in different gender groups., Competing Interests: Declarations The manuscript has been read and approved by all the authors, that the requirements for authorship as stated by the journal have been met, and that each author believes that the manuscript represents honest work. Ethics approval and consent to participate This study was approved by the Institutional Review Board (IRB) of the First Hospital of Shanxi Medical University. After the study procedures were explained to the participants, written informed consent was obtained from all participants in accordance with the Declaration of Helsinki. Consent for publication Not applicable. Competing interests The authors declare no competing interests., (© 2024. The Author(s).)

Background: The phenomenon of suicide risk (SR) represents a psychiatric, social and environmental emergency. The acute psychiatric ward as the Italian Service for Psychiatric Diagnosis and Care (SPDC) represents the place where SR is high due to the acute and serious conditions of people hospitalized. The objective of this study was to evaluate the characteristics of subjects admitted to a SPDC over a 6-year period for SR represented by: suicidal ideation, attempted and failed suicide., Methods: With a retrospective single-center observational design, we collected hospitalizations from 01/01/2017 to 31/12/2022 in the SPDC of AUSL-Modena for SR, analyzed the modality of SR and compared the demographic and clinical variables of subjects with SR with those hospitalized for other clinical reasons in the same period. Data were statistically analyzed., Results: In the 6-year of study period, we collected 2,930 hospitalizations in the SPDC of AUSL- Modena and among them, 68% (n = 528) were carried out due to SR, which represented the second leading cause of hospitalization (18%), in particular among females (Pearson Chi2 = 17.41, p < 0.001). Individuals with SR were more frequently voluntary admitted (Pearson Chi2 = 215.41, p < 0.001) for a shorter period (7.36 ± 8.16 vs 11.66 ± 15.93, t = 6.03, t-test, p < 0.001) and less frequently repeated the hospitalization during the study period for the same reason (Pearson Chi2 = 6.0, p = 0.014). The most frequent psychiatric disorders associated with SR were depressive, personality and adjustment disorders, which represented the most common factor associated with SR (68%), followed by family/relationship problems (12%) and alcohol/substance abuse (8%). We highlighted three kinds of suicidal risk: suicidal ideation (40%), often associated with personality disorders and substance use disorders, drug ingestion (30%) concomitant with conflicting family relationships and use of violent means (30%) associated with depressive disorders (Pearson Chi2 = 42.83, p = 0.002)., Conclusions: Our study provides a real-world setting evaluation of subjects hospitalized for SR and, in accordance with literature, suggests that suicidal behavior is the product of many clinical and social factors' interaction, that occurred in a crucial moment of life in vulnerable individuals. The identification of subjects at SR represents the first step of preventive multi-professional interventions., Competing Interests: Declarations Ethics approval and consent to participate The study was approved by the Ethics Committee of the North Emilia Area Vasta (Prot. 306/2022/AOU) with subsequent amendment for extension of the period examined (Prot. 10826/2023) and authorized by the AUSL- Modena (Prot. no. 688; 27/4/2023). Consent for publication is not applicable. If the informed consent is waived, we would require full name of committee that waived the informed consent. As the study was conducted retrospectively, it was not possible to obtain written informed consent from the enrolled subjects, in accordance with the European GDPR 679/2016 and General Authorization n. 9/2016, extended by Provision n. 424/2018. Data access was granted to the study manager and collaborators, who were bound by confidentiality and data processing obligations under applicable regulations. Consent for publication Not applicable. Competing interests The authors declare no competing interests., (© 2024. The Author(s).)

Background: This study explores among individuals with a major depressive episode (MDE) the potential impact of mixed features on the risk of suicide attempt, suicidal thoughts, self-harm intentions, and thoughts of death., Methods: Data from the French Mental Health in General Population (MHGP) survey (1999-2003) were analyzed, including 128 participants meeting DSM 5 criteria for MDE with mixed features (MDE with at least 3 manic symptoms) and 3,312 participants experiencing MDE without mixed features. Our primary analysis focused on suicide attempt, with additional examination of recent suicidal thoughts, self-harm intentions, and thoughts of death. Multivariable regression models were performed to adjust for potential confounding variables, including sociodemographics, previous suicide attempt, number of depressive symptoms, and psychiatric comorbidity., Results: MDE with mixed features was significantly associated with an increased risk of suicide attempt (adjusted odds ratio [AOR] = 1.69; 95% CI, 1.26-2.25). This association did not significantly differ between men and women. Furthermore, the number of manic symptoms demonstrated a dose-dependent relationship with an increased risk of suicide attempt (AOR = 1.18; 95% CI, 1.07-1.30; P < .001). Mixed features were also associated with suicide attempt among individuals with MDE and without recent suicidal thoughts (AOR = 2.74; 95% CI, 1.36-5.54)., Conclusion: This study underscores the importance of assessing mixed features when evaluating the risk of suicide attempt in individuals with MDE. Mechanisms underlying this association might be independent of progression from thoughts of death to suicidal thoughts, suicidal intention, and ultimately, suicide attempt., (© Copyright 2024 Physicians Postgraduate Press, Inc.)

Background: Suicidal persons' contacts with services present a key opportunity for suicide prevention. However, interventions by services are not always effective. A deeper understanding of suicidal service users' agency and its implications may facilitate the provision of meaningful responses to help-seeking during suicidal crises. This abductive study explores the recovery-related agency of suicide attempt survivors and the perceived role of interactions with services in facilitating or hindering it., Methods: Fourteen Finnish suicide attempt survivors were interviewed in-depth on their experiences of interacting with services during a recent suicidal episode. An operationalization of recovery-related agency as the expressed ability to take (mental or physical) action in a direction perceived as aiding recovery from suicidality (i.e., the coupling of recovery-related intentionality and power) was used to explore transcribed interviews through directed content analysis. Data were further categorized based on whether the service context was perceived as helpful or unhelpful to recovery efforts., Results: All participants expressed both agency and non-agency in relation to their recovery process. The relational context provided by services was presented as highly relevant for the achievement and sustainability of recovery-related agency as well as for participants' experience of safety in instances when agency was lacking. The results are presented as a typology of recovery-related agency in its perceived relational context, with the categories of sustained agency, strained agency, contained non-agency and uncontained non-agency., Conclusions: The concept of agency helped capture important aspects of suicidal individuals' recovery-related efforts and the role of services in facilitating or hindering them. The findings illuminate the value of viewing suicidal service users as agents of their own recovery process as well as the potential costs of ignoring this perspective in service delivery and design., (© 2024. The Author(s).)

Background: Suicide has become a first-order public health concern after the negative impact of COVID-19 on the general population's mental health. Several studies have analyzed the trends in suicide attempts (SA) before and after the onset of the pandemic, but few studies focus on the impact of the pandemic on medically serious suicide attempts (MSSA)., Methods: Participants were 385 hospitalized individuals ≥ 16 years old who made MSSA identified retrospectively through a review of e-medical records between 2018 and 2022 ("pre-COVID-19" and "COVID" periods). The two groups were compared on sociodemographic and clinical variables using Chi-square or Exact Fisher's tests for categorical variables and a Mann-Whitney test for continuous variables. To study the variation in MSSA over time, MSSA were aggregated monthly. Joinpoint regression analyses were used to assess time trends., Results: A sample of 161 MSSA patients, 80 women and 81 men, were selected from 385 admissions after a suicide attempt (SA) in the four years (n = 160 pre-COVID period vs. n = 225 COVID period) (OR = 1.41; CI 95% = 1.0003-1.7223, p < 0.001). Sixty-eight patients with MSSA were admitted during the first period, and 93 during the COVID period (OR = 1.4 ; CI 95% = 1-1.9 ; p < 0.05). MSSA patients were more likely to be admitted to an intensive care unit during the COVID period than during the pre-COVID period (OR = 3.5; CI 95% = 1.7-6.9; p < 0.001)., Conclusions: This study highlights the need for research on suicide risk during and after crisis periods, such as the COVID-19 pandemic. It provides valuable knowledge on the incidence of SA needing hospitalization, MSSA, and highly severe MSSA for four years before and after the pandemic onset., (© 2024. The Author(s).)

Background: Teenage suicide-related behaviors have been highlighted in Japan in recent years, but the background factors and characteristics of these behaviors have not been clarified. Therefore, we investigated the characteristics of teenage suicide attempters who were admitted to an emergency room., Methods: The subjects were suicide attempters in their teens and twenties who were admitted to the Critical Care Medical Center of Nippon Medical School Hospital between January 1, 2010 and December 31, 2021. The means of suicide attempt, sociodemographic data, psychiatric diagnoses, and causes and motives for suicide attempts were retrospectively examined from medical records. Teenage suicide attempters were compared to those in their twenties in regard to the acquired data, and logistic regression analysis was conducted to evaluate the influence on teenage suicide attempts by the aspects that have been shown to be closely associated with teenage suicides., Results: Among 860 suicide attempters between 2010 and 2021, 59 (6.9%) were teenage suicide attempters and 216 (25.1%) were suicide attempters in their twenties. The large number of females, the history of self-harm, the great number of drug overdoses as a means of attempting suicide, and the large number of individuals with psychiatric disorders, especially with mood disorders and personality disorders, were commonly shared by suicide attempters both in their teens and twenties. On the other hand, family problems, school problems and autism spectrum disorder significantly influenced mostly teenage suicide attempters., Conclusions: It was suggested that teenage suicide attempters may have attempted suicide due to environmental difficulties and conflicts about not being able to escape from them. It has become clear that teenage suicide attempters have unique characteristics and background factors, and that it is important to take these into account when taking measures to prevent teenage suicides., (© 2024. The Author(s).)

Objective: To analyze the prevalence of risk factors among adolescents treated at an emergency department due to suicide attempt., Method: A cross-sectional, documentary, and retrospective study, conducted through the analysis of medical records of adolescents treated at an emergency department in a Brazilian teaching hospital from January 2015 to May 2023. Risk factors were divided into behavioral, health, violence, conflict, and stress. Data were subjected to descriptive and inferential analysis., Results: A total of 140 adolescent medical records were analyzed. Family conflicts (47.8%), previous suicide attempt (47.1%) and self-harm (30.7%) were the most prevalent risk factors. Risk factors were associated with age, sex, race, education, previous mental disorder and use of psychotropic medication (p < 0.05)., Conclusion: A high prevalence of risk factors for suicide attempt in adolescents was observed, which was associated with sociodemographic characteristics. It is expected that this study will promote reflections on the translation of Brazilian public policies into care, especially in health promotion, with interventions that aim to reduce risk factors and enhance protective factors.

Importance: The rising suicide rates in the US emphasize the need for effective prevention. While telehealth has transformed access to mental health care, the impact of telehealth on suicide outcomes is unknown., Objective: To evaluate the association of virtual mental health services with individual-level suicide-related events (SREs)., Design, Setting, and Participants: This retrospective cohort study using broadband access as an instrumental variable assessed a national sample of Veterans Health Administration patients who received mental health care between March 1, 2020, and December 31, 2021. Participants were recently separated (ie, discharged or released from active duty) veterans who completed their active duty service between March 1, 2019, and December 31, 2020, and who received at least 2 outpatient or inpatient diagnoses related to major depressive disorder, substance use disorder, or posttraumatic stress disorder within the year before their most recent separation date. Data were analyzed May 1 to October 31, 2023., Exposure: Percentage of a patient's total mental health visits that were conducted virtually by psychiatrists, psychologists, or social workers within a calendar month., Main Outcomes and Measures: Binary measure indicating whether the patient had experienced an SRE (defined as a nonfatal suicide attempt, intentional self-harm, or suicide death) in a specific month and year as evaluated an instrumental variable probit model., Results: The sample included 66 387 data points from 16 236 unique recently separated veterans. Among these entries, 44 766 were for male veterans (67.4%), the mean (SD) age across the sample was 32.9 (8.9) years, and the sample was representative of the US veteran population. There were 929 SREs (1.4%). Virtual mental health visits comprised a mean (SD) of 44.6% (46.1%) of all mental health visits. In instrumental variable probit analyses accounting for factors simultaneously associated with use of virtual mental health care and SRE risk, a 1% increase in the probability of virtual mental health visits was associated with a 2.5% decrease in SREs., Conclusions and Relevance: Findings from this cohort study using a retrospective quasi-experimental design found that an increase in virtual mental health visits relative to total visits was associated with a statistically significant decrease in SREs, suggesting that providing virtual mental health services may reduce suicide-related outcomes.

Aims: The aim of this 4-year follow-up study was to examine the predictive effects of demographics, three types of sexual stigma, three types of self-identity confusion, anxiety, depression, family support and problematic Internet use before the coronavirus disease 2019 (COVID-19) pandemic on new-onset suicide risk and persistent suicide risk in young adult lesbian, gay and bisexual individuals who experienced the COVID-19 pandemic in Taiwan., Methods: Baseline data were collected from 1,000 lesbian, gay and bisexual individuals in 2018 and 2019. Outcome data on suicide risk were collected again in 2023. The suicide module of the Mini International Neuropsychiatric Interview was used to assess suicide risk in terms of thoughts of death, desire to self-harm, thoughts of suicide, plans for suicide and suicide attempts in the preceding month at the initial and follow-up assessments. Baseline three types of sexual stigma, self-identity disturbance, depression, anxiety and problematic Internet use were used to examine their prediction of new-onset suicide risk and persistent suicide risk at follow-up., Results: In total, 673 individuals participated in the follow-up survey. Notably, 16.5% of the participants who had no suicide risk at baseline had new-onset suicide risk at follow-up; 46.4% of the participants who had suicide risk at baseline also had suicide risk at follow-up. Participants who were transgender ( p  = .003), who perceived greater levels of microaggression ( p  < .001), and who had greater levels of problematic Internet use at baseline ( p  = .024) were more likely to have new-onset suicide risk at follow-up. Participants who had greater levels of self-identity confusion were more likely to have persistent suicide risk at follow-up ( p  = .023)., Conclusion: Intervention strategies for reducing suicide risk in lesbian, gay and bisexual individuals should be developed with consideration of the predictors identified in this study.

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., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)

Background: Suicide is a global public health crisis, and little evidence has focused on associations between suicide attempts and childhood maltreatment (CM) in Chinese middle school students., Objective: This study aimed to explore the relationship between childhood maltreatment and suicide attempts and the sex difference in Chinese middle school students., Participants and Setting: In this prospective cohort study, students in grades 7 and 8 filled out the questionnaire at baseline and 6-month follow-up., Methods: Demographic data, childhood maltreatment, and suicide attempts were surveyed. Depression, anxiety, and stress were measured at baseline as covariates. Logistic regression was employed to measure the impact of childhood maltreatment and its sex differences on suicide attempts., Results: Among 782 students, 39.6 % suffered from childhood maltreatment, and the incidence rate of suicide attempts in 6 months was 4.60 % (36/782). After controlling for covariates, childhood maltreatment (adjusted odds ratio, OR = 2.899, 95%CI = 1.349-6.227) and its subtypes, physical abuse (adjusted OR = 4.077, 95%CI = 1.593-10.505) and emotional neglect (adjusted OR = 2.179, 95%CI = 1.059-4.481) were independent risk factors of suicide attempts. The association remained significant in females but not males, while no interactions between sex and childhood maltreatment were found., Conclusions: Childhood maltreatment was prevalent in Chinese middle school students and closely associated with the incidence of suicide attempts, which provided valuable evidence for suicide prevention., Competing Interests: Competing interest There is no conflict of interest for all authors., (Copyright © 2024. Published by Elsevier Ltd.)

Objective: Literature on temporal patterns of suicidality among youths during the COVID-19 pandemic is growing. The present work proposes a Bayesian approach to assess temporal patterns of suicide-related behaviours among inpatient adolescents during the COVID-19 pandemic., Methodology: Data referred to the first hospital discharge record with ICD9-CM codes related to suicide-related behaviour and/or suicidal ideation among adolescents aged 13-19 between 1 January 2017 and 31 March 2021 were collected in the Piedmont region, Italy (n = 334; median age: 15 years, IQR: 14-16; 80% girls). A Poisson Bayesian regression model performed on pre-COVID-19 data (2017-2020), adjusted by seasonality and stratified by sex, was adopted to provide the probability that the predicted counts exceed the observed ones in each pandemic year quarter., Results: A declining trend of suicidality was observed in April-June 2020 among both sex groups. Among females, an increasing pattern of suicidality was registered in early 2021 (January-March) compared to the pre-pandemic period., Conclusion: The present findings contributed to a growing literature on the COVID-19 pandemic's impact on adolescents' suicide-related behaviours from a gender perspective and encouraged wider adoption of Bayesian approaches as valuable tools to explore rare events and deeply enlighten open public health issues., Competing Interests: Declaration of competing interest None., (Copyright © 2024 Elsevier Ltd. All rights reserved.)

Lithium and mood stabilizers are considered effective augmentation agents of antidepressants for treatment-resistant depression. Thus, this study aimed to estimate the network structure of depression symptom criteria among unipolar depression patients with mood stabilizers, using data from the Research on Asian Psychotropic Prescription Patterns for mood stabilizers (REAP-MS). We estimated a network of the 9 depression symptom criteria among 411 unipolar depression patients in Asia. Each of the depression symptom criteria was considered to be a dichotomous categorical variable. Suicidality (suicidal ideation or attempt) was the most centrally situated within the network of depression symptoms, followed by depressed mood, loss of energy, anhedonia and weight loss or gain. Contrastingly, concentration problem was the least interconnected. The depression symptom criteria were organized into 4 clusters by the community detection method. The findings suggest that suicidality may be one of the significant therapeutic target symptoms in unipolar depression patients with mood stabilizers., Competing Interests: Declaration of Competing Interest Seon-Cheol Park, an editorial board member of the Asian Journal of Psychiatry, was not involved in the evaluation of or decision to publish this article., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)

Background: Acetaminophen and ibuprofen are the most common agents involved in adolescent self-poisoning. With increasing suicidality observed during the COVID-19 pandemic, we sought to compare overdose trends, severity, and outcomes for both agents., Methods: We performed a retrospective analysis of the National Poison Data System for acetaminophen and ibuprofen single-substance exposures in teenagers 13-19 years of age from 2017-2022. Acetaminophen and ibuprofen overdoses (per 100,000 persons) were plotted by year. Medical outcomes, clinical effects, and therapies were compared to determine if there were differences in overdose severity between the 2 agents., Results: From 2017 to 2022, US poison centers recorded 50,902 single-substance acetaminophen exposures and 41,674 single-substance ibuprofen exposures in teenagers. Cases peaked in 2021 with 40.0 versus 29.1 cases (per 100,000 persons) for acetaminophen and ibuprofen, respectively. Acetaminophen self-poisoning was significantly more likely to result in death (odds ratio, 13.92; 95% confidence interval, 2.18-581.75; P < 0.001) or inpatient admission (odds ratio, 7.38; 95% confidence interval, 7.10-7.66; P < 0.001) compared with ibuprofen. Abdominal pain and vomiting were the most common clinical effects for both agents, and unsurprisingly, acetaminophen was more likely to cause transaminitis and liver dysfunction, whereas ibuprofen was more likely to cause central nervous system depression and metabolic acidosis. For the acetaminophen group, 19 teenagers underwent organ transplantation., Conclusions: Given the increased hospitalization and treatment resources needed for acetaminophen overdoses compared with ibuprofen, it is time to implement acetaminophen packaging policy change to protect US adolescents., Competing Interests: Disclosure: The authors declare no conflict of interest., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)

Background: Contradictory findings link trait conscientiousness in mid- and late life to increased healthspan and lifespan, as well as to death by suicide. It remains unclear whether conscientiousness is associated with higher odds of attempting suicide or with more severe suicidal behavior among attempters, and whether its relationship to suicide risk varies with aging-related stressors, such as declining health., Methods: In this cross-sectional study comprising 313 depressed adults aged ≥40 years and participating in the Longitudinal Research Program in Late-Life Suicide (Pittsburgh, USA), we employed logistic and linear regression to test whether conscientiousness was associated with the presence of recent suicidal behavior (≤2 years) and with intent severity in recent attempters (n = 84). We further tested whether the above relationships varied based on mental, cognitive, and physical health status, measured as depression severity, cognitive functioning, and the presence/absence of severe physical illness., Results: Participants were 62.1 years old on average (SD = 7.6), 85% White, and 53% female. Recent attempters had a mean age of 61.8 years at their most recent attempt (SD = 8.5), had lower cognitive functioning and were more likely severely physically ill than comparisons. Conscientiousness was positively associated with a higher likelihood of recent suicidal behavior overall (adjusted OR = 1.44, 95% CI = 1.09, 1.90, p = .010), but not in case of co-occurring severe physical illness (interaction OR = 0.54, 95% CI = 0.30, 0.97, p = .039). Conscientiousness was also positively associated with suicidal intent at the most recent attempt (adjusted β = 1.60, SE = 0.62, p = .012), explaining 7% of its variance, although this association lost significance after adjusting for other personality dimensions., Conclusions: Highly conscientious middle-aged and older adults may be at increased risk of resolute suicidal behavior, although conscientiousness may not confer additional suicide risk among those severely physically ill., Competing Interests: Declaration of competing interest None., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)

Objectives: The longitudinal associations between DSM-5 Internet Gaming Disorder (IGD) and suicide-related ideation and behaviors have not been explored. In this study, we therefore seek to examine the association between baseline IGD and incident suicide ideation, plans, and attempts., Methods: This is a prospective cohort study of 2586 Mexican college students followed up from September 2018 to June 2022. We estimated hazards ratios modeling incidence of suicide ideation, plans, and attempts by fitting proportional hazards Cox models with person-time scaled in years., Results: Among 2140 students without suicide ideation at baseline, there were 467 incident cases in 3987.6 person-years; ideation incidence rates were 179 cases per 1000 person-years among students with IGD and 114 cases per 1000 person-years among those without IGD. Incidence rates for suicide plans were 67 and 39 per 1000 among IGD and non-IGD students, and 15 and 10 per 1000, respectively for attempts. After controlling for age, sex, and mood, anxiety, and substance use disorders, IGD was associated with an 83% increased risk of suicide ideation. Although incidence rate estimates for plans and attempts were higher among students with IGD, results were not statistically significant., Conclusions: This study helps to raise awareness of the increased risk of at least suicidal ideation in people experiencing IGD. Clinicians treating patients with IGD may encounter complaints of suicide ideation over time, and even reports of suicidal behavior that should not be disregarded. Identifying these patients and treating/referring them for underlying suicidality should form part of IGD treatment., Competing Interests: The authors report no conflicts of interest., (Copyright © 2024 American Society of Addiction Medicine.)

Objective: Native American adolescents are disproportionately burdened by suicidality. Here, we examine patterns of reporting of suicide ideation and suicide attempt among Native American youth compared to those from other ethnoracial backgrounds, as this data is important for grounding commonly subscribed to frameworks of suicide risk (e.g., ideation-to-action)., Method: Data are from the Youth Risk Behavior Surveillance Survey ( N  = 54,243; grades 9-12; 51.0% female) and Minnesota Student Survey ( N  = 335,151; grades 8, 9, 11; 50.7% female). Comparing Native American youth to peers from other ethnoracial backgrounds, we examined two suicide reporting patterns: 1) odds of reporting suicide attempt among those who reported ideation and 2) odds of reporting suicide ideation among those who reported an attempt., Results: Across both samples, when reporting suicide ideation, youth from other ethnoracial backgrounds were 20-55% less likely than Native American youth to also report attempt. While few consistent differences were observed between Native American youth and those from other racial minority backgrounds in patterns of co-reporting suicide ideation and attempt across samples, White youth were between 37% and 63% less likely than Native American youth to report a suicide attempt without also reporting ideation., Conclusions: The increased odds of engaging in a suicide attempt with or without reporting ideation question the generalizability of widely held frameworks of suicide risk to Native American youth and have important implications for suicide risk monitoring. Future research is needed to illuminate how these behaviors unfold over time and the potential mechanisms of risk for engaging in suicide attempts in this disproportionately burdened group. Abbreviations: YRBSS: Youth Risk Behavior Surveillance Survey; MSS: Minnesota Student Survey.

Purpose: Suicidal thoughts and behaviors (STB) have been increasing among US college students. Accurate measurement of STB is key to understanding trends and guiding suicide prevention efforts. We aimed to compare the prevalence estimates of STB among college students from two campus-based surveys (the National College Health Assessment [NCHA] and the Healthy Minds Study [HMS]) and one general population study (the National Survey on Drug Use and Health [NSDUH])., Methods: Estimates were generated from the three surveys for past year suicidal ideation (PYSI) and past year suicide attempts (PYSA) among 18- to 22-year-old full-time college students. Data were combined from each survey to develop bivariate and multivariate regression models for odds of PYSI and PYSA., Results: Estimates for PYSI varied between the three surveys: 34.3% for NCHA, 15.0% for HMS, and 10.7% for NSDUH. Estimates for PYSA were 2.6% for NCHA, 1.6% for HMS, and 1.7% for NSDUH. After adjusting for demographic and educational characteristics, odds of PYSI remained significantly lower for HMS participants (aOR 0.31, 95% CI 0.29-0.33) and NSDUH participants (aOR 0.19, 95% CI 0.19-0.30) compared to NCHA participants. The odds of PYSA for HMS participants were lower than those for NCHA participants (aOR 0.63, 95% CI 0.54-0.73)., Conclusion: Estimates of PYSI and PYSA vary between leading sources of data on college student mental health. The differences are likely related to question wording, survey implementation, as well as institutional and individual representation. Accounting for these differences when interpreting estimates of STB can help guide suicide prevention efforts., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany.)

Background: Previous studies demonstrate a link between irritability and suicidal thoughts and behaviors (STBs) in youth samples. However, they have mostly assessed irritability in community samples and as a largely dispositional (i.e. trait-like) construct. Thus, it remains unclear to what extent links between irritability and STBs reflect within-person processes of elevated risk in clinically meaningful time periods., Methods: The present study used clinical data from 689 adolescents aged 12-19 years attending a total of 6,128 visits at a specialty Intensive Outpatient Program for depressed and suicidal youth to examine patterns in weekly assessments of irritability and STBs throughout treatment, including associations among trends and fluctuations departing from these trends via multilevel structural equation modeling. Youth completed self-report measures of irritability, depression, and STBs weekly as part of standard IOP clinical care., Results: Overall, two-thirds of variance in weekly irritable mood was accounted for by between-person differences and the remaining portion by weekly fluctuations. After controlling for depression, during weeks when youth were more irritable they experienced increased STBs. Rates of change in irritability and STBs tended to track together at early stages of treatment, but these effects were generally accounted for by depression severity., Conclusions: Our results suggest that although changes in STBs are best accounted for by depression, irritability can be understood as a specific, proximal risk factor for youth STBs that exacerbates youth STBs in clinically informative timeframes above and beyond depression., (© 2024 The Authors. Journal of Child Psychology and Psychiatry published by John Wiley & Sons Ltd on behalf of Association for Child and Adolescent Mental Health.)

Introduction: Suicide is a major public health concern in low- and middle-income countries (LMICs) due to its substantial psychological, social, and economic impact. There is little synthesized evidence to estimate the economic burden of suicide and suicide attempts in such economies. The present systematic literature review aims to examine existing evidence on the cost of illness (COI) in the case of suicides and suicide attempts and assess their quality., Methods: A systematic review was carried out using electronic databases, such as Medline, EMBASE, EconLit, PsycINFO, and CINAHL using keywords like 'suicide and suicide attempts,' 'cost of illness,' and economic burden." The quality assessment of studies was conducted along with the per-person cost estimation to understand the variation of methods followed across the studies., Result: 14 studies qualified for final data extraction and synthesis out of 4,164 studies. The studies showed heterogeneity across objectives, settings, and methods, with cost estimates reflecting a wide range of costings per person in suicide and suicide attempts., Conclusion: It is challenging to determine and compare the economic estimates of suicide. Intensive research is warranted with standardized cost assessment techniques and wider perspectives to understand the true economic burden of suicide., Registration: PROSPERO Registration No- CRD42022294080.

Evidence suggests that child maltreatment is a risk factor for adolescent suicidal behavior. However, the differential influence of distinct forms of child maltreatment on adolescent suicide attempts is understudied and the factors that might exacerbate or ameliorate these associations warrant attention. We examined the associations between two distinct forms of child maltreatment (threat and deprivation) and suicide attempt history, and investigated whether executive function domains moderated these associations. Participants were 119 adolescents ( M = 15.24, SD = 1.46, 72.3% female) recruited from an inpatient psychiatric hospital during hospitalization for suicidal thoughts and behaviors. Results indicated that the executive function domains of initiation, shifting, and planning/organization moderated the associations between threat and suicide attempt history. Associations between threat and suicide attempt history were significant only when initiation and shifting T-scores were lower ( OR = 1.22, p = .03 and OR = 1.32, p = .01, respectively). The association between threat and suicide attempt history trended toward significance when planning/organization T-scores were lower ( OR = 1.15, p = .10). None of the executive function domains moderated the link between deprivation and suicide attempt history. Findings highlight the need for research investigating whether initiation, shifting, and planning/organization might be amendable to intervention in the context of threat-related child maltreatment., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

The coronavirus infection 2019 (COVID-19) pandemic has affected on mental health and contributed to increased depression and anxiety. We assessed the impact of the COVID-19 pandemic on suicide-related the emergency department (ED) visits. We compared the characteristics of suicide-related patients who visited the ED between the "COVID-19 period" and the "pre-COVID-19 period". The mean age of patients was younger after COVID-19 pandemic. In comparison by age group, the proportion of patients during the COVID-19 period increased in their teens and 20s, and the rest of the age groups decreased. The proportion of patients who requested help was higher during the COVID-19. The authenticity of suicide attempts showed a higher proportion of patients during the pre-COVID-19. Therefore, during the pandemic, attention should be paid to worsening mental health problems, such as anxiety or depression, rather than the lethality of suicide attempts., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Suicide, as an avoidable cause of death in public health systems, currently lacks effective global strategies to prevent it. However, several epidemiological studies found a correlation between the concentration of lithium (Li) in drinking water and lower suicide rates in the general population. Our ecological study investigated this hypothesis in the Rafsanjan district of Iran. Samples from the public water supply in 16 areas in the district were analyzed using the graphite furnace atomic absorption. The resulting data were examined in relation to the suicide attempt from March 2019 to March 2020 obtained from Iran's Ministry of Health's registration system. During that period, 239 suicide attempts were recorded, resulting in an average of 69 individuals (85 women and 54 men) per 100,000 residents of the area. The average Li concentration in the drinking water was 47.30 µg/L (ranging from 9.4 to 141 µg/L). A negative significant correlation (r = -0.551, p = 0.027) between Li concentration in water and the rate of suicide attempt were observed in the studied population. Notably, these findings indicate an inverse significant relationship between Li levels and suicide attempt rate in women (r = -0.725, p = 0.001). This is the first study in Iran that examines the relationship between Li levels in drinking water and suicide attempt rate. The findings of this study support an inverse relationship between the level of Li in public drinking water and the rate of women suicide attempt., (© 2024. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)

Background: The "suicidal transition" from ideation to an act has become a specific topic of research. However, rates in the general population, variations across time and risk factors are unclear., Methods: Data were collected from the phone survey Baromètre Santé among 18-75-year-olds in France. Seven independent samples interviewed between 2000 and 2021 (total N = 133,827 people; 51.3% females) were questioned about suicidal ideation and attempts over the previous 12 months. Transition was calculated as the weighted ratio of attempt on ideation 12-month rates., Results: Mean 12-month rates of suicidal ideation, attempts and transition were 4.7% (95% Confidence Interval (CI) (4.6-4.8)), 0.5% (95% CI (0.4-0.5)) and 7.7% (95% CI (6.8-8.6)), respectively. Transition rates varied between 4.5 and 11.9% across surveys. In multivariable analyses, higher transitions rates were associated with a previous suicide attempt (adjusted Odds Ratio (aOR) = 11.1 95% CI (7.9-15.6)); 18-25 vs 26-55-year-olds (1.8 95% CI (1.2-2.8)); lower vs higher income (1.7 95% CI (1.0-2.7); and lower vs higher professional categories (aOR around 1.9). No significant association was found with gender, education level, employment status, living alone, urbanicity, current major depression, daily smoking, weekly heavy drinking, cannabis use, and body mass index., Conclusions: Most people with suicidal ideation do not attempt suicide. These findings emphasize the need to avoid generic terms such as "suicidality", and to increase research on suicidal transition to improve prevention and prediction. They may also inform the organization of suicide prevention in the general population.

Background: Suicidal behavior constitutes a multi-cause phenomenon that may also be present in people without a mental disorder. This study aims to analyze suicidal behavior outcomes in a sample of attempters, from a symptom-based approach., Methods: The sample comprised 673 patients (72% female; M  = 40.9 years) who attended a hospital emergency department due to a suicide attempt. A wide range of clinical factors (e.g., psychopathology symptoms, psychiatric diagnoses, impulsivity, acquired capability), was administered within 15 days after the index attempt. Nine psychopathology domains were explored to identify the profile of symptoms, using latent profile analysis. The relationship between the profile membership and suicide outcome (i.e., intensity of suicidal ideation, number of suicide behaviors, and medical injury derived from index attempt) was also studied, using linear and logistic regression., Results: Three psychopathology profiles were identified: high-symptom profile (45.02% of participants), moderate-symptom profile (42.50%), and low-symptom profile (12.48%). High-symptom profile members were more likely to show higher risk of non-suicidal self-injury, acquired capability for suicide, and more severe suicide behavior and ideation. On the other hand, a more severe physical injury was associated with low-symptom profile membership in comparison to membership from the other profiles ( OR  < 0.45, p  < .05)., Conclusions: A symptom-based approach may be useful to monitor patients and determine the risk of attempt repetition in the future and potential medical injury, and to optimize prevention and intervention strategies.

Suicide is a significant leading cause of death among young people, particularly those struggling with mental disorders. The present study utilised data from 230 young people (aged 16-18 years) undergoing a transitional care process from Child and Adolescent Mental Health Services to Adult Mental Health Services within the MILESTONE European project (2014-2019), a longitudinal cluster randomised controlled trial. The objectives of this study were to monitor temporal patterns of general health and social functioning over two years, to detect sex differences, and to identify factors associated with Suicidal Thoughts and Behaviours (STB) at the first and last time points. The results demonstrate a decrease in STB over the two-year follow-up period among all participants. Females exhibited a higher prevalence of STB across all time points, whereas males only exhibited STB at the nine-month follow-up. The most influential factors associated with STB were previous suicide attempts and mood disorders at baseline, and mood disorders and relational problems at the end of follow-up. These findings emphasise the importance of monitoring STB and informing young people undergoing a transitional care period about its key risk factors. Moreover, sex differences in STB suggest the need for different preventive strategies for males and females., (© 2024. The Author(s).)

Objective: The suicide crisis syndrome (SCS), an acute negative affect state predictive of near-term suicidal behavior, is currently under review for inclusion as a suicide-specific diagnosis in the Diagnostic and Statistical Manual of Mental Disorders ( DSM ). While the SCS has ample psychometric validation, it is critical to test its utility as a clinical tool within a real-world clinical setting. The present study investigates patterns of emergency department (ED) readmissions following implementation of an SCS-based risk assessment tool into the ED of a large, urban hospital system., Methods: Patterns of readmission rates to the ED in the 3 months following initial ED visit were evaluated for patients diagnosed with the SCS, after controlling for suicidal ideation (SI), self-harm behavior (SHB), and psychosis in the initial ED visit. All diagnoses were extracted from the electronic medical record. SCS diagnosis was based on the Abbreviated SCS Checklist (A-SCS-C), a clinician administered rating scale., Results: Analysis of the SCS was performed on 213 patients consecutively admitted to the ED 9 months post-implementation of the A-SCS-C. Over one third (79; 37%) of patients were diagnosed with the SCS, over half 111 (52.1%) presented with SI and 8 (3.8%) with suicide attempt. After controlling for covariates, SCS diagnosis reduced readmission risk by approximately 72% (AOR = 0.281) for any reason and almost 75% (AOR = 0.257) for suicidal presentations, while SI and SHB upon initial ED visit either increased readmission risk or were noncontributory. The protective effect of the SCS was consistent across levels of severity of both SI and SHB., Conclusion: Use of the SCS appears to improve clinical outcome with suicidal patients presenting to the ED., (© Copyright 2024 Physicians Postgraduate Press, Inc.)

Despite the significant impact of the COVID-19 pandemic on various factors related to adolescent mental health problems such as stress, sadness, suicidal ideation, and suicide attempts, research on this topic has been insufficient to date. This study is based on the Korean Youth Risk Behavior Web-based Survey from 2006 to 2022. We analyzed the mental health problems of adolescents based on questionnaires with medical interviews, within five income groups and compared them with several risk factors. A total of 1,138,804 participants were included in this study, with a mean age (SD) of 15.01 (0.75) years. Of these, 587,256 were male (51.57%). In 2022, the recent period from the study, the weighted prevalence of stress in highest income group was 40.07% (95% CI, 38.67-41.48), sadness was 28.15% (26.82-29.48), suicidal ideation was 13.92% (12.87-14.97), and suicide attempts was 3.42% (2.90-3.93) while the weighted prevalence of stress in lowest income group was 62.77% (59.42-66.13), sadness was 46.83% (43.32-50.34), suicidal ideation was 31.70% (28.44-34.96), and suicide attempts was 10.45% (8.46-12.45). Lower income groups showed a higher proportion with several risk factors. Overall proportion had decreased until the onset of the pandemic. However, a significant increase has been found during the COVID-19 pandemic. Our study showed an association between household income level and the prevalence of mental illness in adolescents. Furthermore, the COVID-19 pandemic has exacerbated mental illness among adolescents from low household income level, underscoring the necessity for heightened public attention and measures targeted at this demographic., (© 2024. The Author(s).)

Aims: Venlafaxine is used to treat depression worldwide. Previous reviews have demonstrated that venlafaxine lowers scores on depression rating scales, producing statistically significant results but the relevance to patients remains uncertain. Knowledge of the incidence of the adverse effects associated with venlafaxine has previously been based on the results of non-randomised studies. Our primary objective was to assess the risks of adverse events with venlafaxine in the treatment of adults with major depressive disorder in randomised trials., Methods: We searched relevant databases and other sources from inception to 7 March 2024 for randomised clinical trials comparing venlafaxine versus placebo or no intervention in adults with major depressive disorder. Data were synthesised using meta-analysis and Trial Sequential Analysis. The primary outcomes were suicides or suicide attempts, serious adverse events and non-serious adverse events., Results: We included 28 trials randomising 6,253 participants to venlafaxine versus placebo. All results were at high risk of bias, and the certainty of the evidence was very low. All trials assessed outcomes at a maximum of 12 weeks after randomisation. Meta-analysis and Trial Sequential Analysis showed insufficient information to assess the effects of venlafaxine on the risks of suicides or suicide attempts. Meta-analysis showed evidence of harm of venlafaxine versus placebo on serious adverse events (risk ratio: 2.66; 95% confidence interval: 1.67-4.25; p < 0.01; 22 trials), mainly due to a higher risk of sexual dysfunction and anorexia. Meta-analysis showed that venlafaxine also increased the risk of several non-serious adverse events: nausea, dry mouth, dizziness, sweating, somnolence, constipation, nervousness, insomnia, asthenia, tremor and decreased appetite., Conclusions: Short-term results show that venlafaxine has uncertain effects on the risks of suicides but increases the risks of serious adverse events (especially sexual dysfunction and anorexia) and many non-serious adverse events. The long-term effects of venlafaxine for major depressive disorder are unknown. It is a particular cause for concern that there are no data on the long-term adverse effects of venlafaxine given that so many people use these drugs for several years.

Background: Suicide is the leading cause of death among children and adolescents in Japan. Internet search volume may be useful in detecting suicide risk. However, few studies have shown an association between suicides attempted by children and adolescents and their internet search volume., Objective: This study aimed to examine the relationship between the number of suicides and the volume of school-related internet searches to identify the search terms that could serve as the leading indicators of suicide prevention among children and adolescents., Methods: We used data on weekly suicides attempted by elementary, middle, and high school students in Japan from 2016 to 2020, provided by the National Police Agency. Internet search volume was weekly data for 20 school-related terms obtained from Google Trends. Granger causality and cross-correlation analysis were performed to estimate the temporal back-and-forth and lag between suicide deaths and search volume for the related terms., Results: The search queries "I do not want to go to school" and "study" showed Granger causality with suicide incidences. The cross-correlation analysis showed significant positive correlations in the range of -2 to 2 for "I do not want to go to school" (highest value at time lag 0, r=0.28), and -1 to 2 for "study" (highest value at time lag -1, r=0.18), indicating that the search volume increased as the number of suicides increased. Furthermore, during the COVID-19 pandemic period (January-December 2020), the search trend for "I do not want to go to school," unlike "study," was highly associated with suicide frequency., Conclusions: Monitoring the volume of internet searches for "I do not want to go to school" could be useful for the early detection of suicide risk among children and adolescents and for optimizing web-based helpline displays., (©Takahiro Arai, Hiroe Tsubaki, Ayako Wakano, Yasuyuki Shimizu. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 21.10.2024.)

Background: Suicide is a global public health problem. In childhood, the risk factors are less clear, highlighting family and individual factors. This study aims to investigate the prevalence and sociodemographic, social, family, and individual factors associated with suicide ideation and attempts in pre-adolescents in a Brazilian city., Methods: The sample comes from a cohort of 500 schoolchildren of a city in Rio de Janeiro/Brazil. The data are analyzed cross-sectionally. The research incorporated data from the years 2005, 2006, and 2008 to evaluate suicide ideation and attempts in childhood, as reported by parents/caregivers, teachers and children. A hierarchical logistic model evaluated the association between the explanatory variables related to sociodemographic, social, family, and individual factors and the outcome., Results: 22.2% of the children (95% CI 18.0%-27.0%) had suicide ideation/attempts, reported either by their mothers, teachers, or the child at some point in a cohort. The following variables were associated with suicidal ideation/attempts in the final adjusted model: regular or poor quality of relationship with friends (OR = 1.84; 95% CI 1.31-2.58), having a family member incarcerated (OR = 1.44; 95% CI 1.07-1.92) and having worse performance in portuguese or mathematics than other students (OR = 2.05; 95% CI 1.29-3.26)., Conclusion: Suicidal behavior in childhood is severe and affects everyone around the case, demanding to promote friendships, helping with school activities, and providing greater support and attention to children at risk. Bad relationships with friends and incarcerated family members are particularly key risk factors for suicide ideation and attempts. It is essential to improve prevention policies and to disseminate protective behaviors. There is a critical need to augment community mental health resources, mainly in less developed countries and regions that lack these services., (© 2024. The Author(s).)

Background: The relationship between suicidality and resilience is underexplored among the general population. This study aimed to explore the relationship between lifetime, one-year, and one-month prevalence of suicidality (ideation, plan, attempt) and resilience in the general population., Methods: Data on suicidality, resilience, prevalence of major mental disorders, and other key psychological factors were collected from the National Mental Health Survey of Korea 2021. Interviewees comprised 5511 South Koreans aged 18-79 years. The contribution of resilience to suicidality was evaluated using Rao-Scot logistic regression, adjusting for possible confounders such as mental disorder prevalence and demographic and psychological characteristics., Results: Significantly lower resilience levels were noted among participants who reported lifetime, one-year, and one-month suicidal ideation, plan, or attempts. High resilience levels predicted no suicidal ideation, plans, and attempts in the lifetime, and no suicidal ideation and plans in the one-year and one-month time frames., Limitations: First, this study's cross-sectional design has limitations for ascertaining a causal relationship between resilience and suicidality. Second, because the number of participants who had attempted suicide in the past year and reported suicidal thoughts/attempts in the past month was small, there were limitations in the analysis of suicidality in these time frames. Third, it was difficult to rule out the mediating effects of personality and temperament on the relationship between resilience and suicidality., Conclusions: High resilience levels predicted lower lifetime and current suicidal ideation and suicidal planning in the general population. This study shows that psychological resilience is an important factor in evaluating an individual's current suicidality., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)

Background: The current study uses a nationally representative longitudinal dataset of sexual minority adults in the US to investigate the pathways from adverse childhood experiences (ACEs) to adulthood suicidal thoughts and behaviors., Methods: ACEs were measured at year one, potential mediators at year two, and suicidal thoughts and behaviors (suicidal ideation, intent, plan, and attempt) at year three. We conducted an exploratory mediation analysis to identify potential mediating factors linking ACEs to suicidal thoughts and behaviors. Ten candidate mediators were examined: social well-being, felt stigma, experiences of everyday discrimination, social support, psychological distress, alcohol and drug use, importance of sexual identity, community connection, and internalized homophobia., Results: Participants were 1518 adults who identified as lesbian or gay (n = 833; 55 %), bisexual (n = 493; 33 %), or with other sexual minority identities (n = 181; 12 %) and were on average 36.48 years (SD = 14.7) of age. Psychological distress served as a common mediator between ACEs and suicidal ideation, intent, plan, and attempt. Additionally, experiences of everyday discrimination emerged as a specific mediator leading to suicidal intent, whereas social support uniquely mediated the relation between ACEs and suicide plan., Limitations: Potential recall bias due to retrospective reporting of ACEs may be a limitation. Future studies should broaden the measurement scope of ACEs and implement intersectional methods., Conclusion: The current findings underscore the urgent need for targeted interventions that address the specific mental health needs of sexual minority individuals, particularly focusing on mitigating psychological distress, combating systemic discrimination, and enhancing social support., Competing Interests: Declaration of competing interest All authors declare no conflicts of interests., (Copyright © 2024 Elsevier B.V. All rights reserved.)

Background: Suicidal thoughts and behaviors often emerge in a predictable sequence, with suicidal ideation (SI) preceding planning, and planning preceding actions. Few studies, however, have considered the timing and duration of non-suicidal self-injury (NSSI) in these transitions. Accordingly, this study examined: 1) the developmental sequencing of NSSI, SI and suicide attempts, and 2) whether age of onset or duration predict transitions from NSSI to other SITB, and from SI to NSSI., Methods: 704 first-year students from a mid-sized Canadian university (Sample 1) and 2095 adults from an online research volunteer panel (Sample 2) completed the Self-Injurious Thoughts and Behaviors Interview self-report, which assessed the presence, age of onset, and recency of SITB., Results: NSSI and SI typically onset before age 15, while suicide planning and attempt usually began at or after age 15. Transition from NSSI to SI was likeliest in the first year after NSSI onset. Transition from NSSI to suicide attempt was likeliest in the second and third year after NSSI onset in Sample 1, and up to four years after NSSI onset in Sample 2. Early (before age 13) and late (after age 16) onsets of NSSI predicted higher odds of transitioning from NSSI to SI or attempt. Transition from SI to NSSI was likeliest in the first two years after SI onset and when SI began before age 13., Conclusions: The first year after NSSI or SI onset are critical for transitions to other SITB. Targeted prevention and monitoring should be considered for people who recently initiated NSSI., Competing Interests: Declaration of competing interest The authors declare none., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)

Background: A relatively small number of studies have researched the relationship between sleep duration and suicidal ideation, attempts, and behavior. This research aims to investigate the link between sleep duration and suicide in Chinese adolescents, and to examine the role of depression as a mediating factor., Method: Data were collected from 3315 students using a multi-stage random cluster sampling method and self-administered questionnaires. The study applied logistic regression to investigate the relationship between sleep duration and various forms of suicidal behavior, and mediation analysis to understand how depression might influence this relationship., Results: The average sleep duration among the adolescents was 7.25 h (±0.20), with 59.67 % reporting insufficient sleep. The logistic regression analysis showed that longer sleep duration is linked with lower risks of suicidal ideation (OR: 0.753, 95%CI: 0.696 to 0.814), suicidal attempts (OR: 0.830, 95%CI: 0.748 to 0.922), and suicidal behavior (OR: 0.841, 95%CI: 0.713 to 0.992). Analysis using restricted cubic spline plots indicated the connection between sleep duration and these suicidal factors was not linear. The study found that depression plays a partial mediating role between sleep duration and suicidal ideation, with an effect of 52.29 %., Limitations: The cross-sectional study design could not prove causation., Conclusions: There is a clear non-linear association between sleep duration and suicidal tendencies in adolescents, with depression acting as a mediator. This suggests that future research could focus on sleep and mood management as ways to address suicide risk in this age group., Competing Interests: Declaration of competing interest All authors declare no conflict of interest., (Copyright © 2024 Elsevier B.V. All rights reserved.)

Objective: To assess the long-term impact of the age of onset (AOO) of the first major depressive episode (MDE) according to 3 age groups and considering gender., Methods: Data were extracted from NESARC III, a representative U.S., Sample: We included 8053 participants with an MDE history in a cross-sectional and retrospective cohort study. We defined 3 AOO groups: childhood-onset (< 13 yo), adolescence-onset (13-18 yo), and adult-onset (> 18 yo). We compared sociodemographic characteristics, lifetime psychiatric disorders per DSM-5 criteria, and health-related quality of life (HRQOL) in each group and performed gender-stratified analyses., Results: Prevalence of childhood-onset MDE was 10.03 %, adolescence-onset was 14.12 %, and adult-onset was 75.85 %. Suicide attempts (AOR = 3.61; 95 % CI 2.90-4.50), anxiety disorders (AOR = 1.92; 95 % CI 1.62-2.27), and personality disorders (AOR = 3.08; 95 % CI 2.56-3.71) were more frequent in the childhood-onset than in the adult-onset one. Adolescence-onset group showed similar results. Physical Disability scale (p < 0.001) and Mental Disability scale (p < 0.001) were significantly lower in the childhood-onset group. Results were more nuanced in the adolescence-onset group. Women in childhood-onset and adolescence-onset groups had poorer outcomes than the adult-onset group. Differences were less pronounced in men., Limitations: Recall and classification biases inherent to survey design., Conclusion: Individuals, particularly women, who experienced their first MDE during childhood or adolescence exhibit higher lifetime psychiatric disorder prevalence and poorer HRQOL than those with adult-onset MDE. These findings highlight the importance of preventive measures, early diagnosis, and treatment of youth depression., Competing Interests: Declaration of competing interest None of the authors have any competing interests., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)

Background: Suicide ranks as a leading cause of premature death among adolescents globally. Understanding the trends and key determinants of suicidal behavior in youth are critical for implementing educational policies and supporting preventive strategies in schools., Methods: This retrospective study examined all hospitalizations due to suicidal behavior in children and adolescents aged 11 to 18 years in Spain, using data from the Spanish National Registry of Hospital Discharges spanning 2000 to 2021., Results: Over the 22-year study period, there were 2,015,589 hospitalizations among adolescents in Spain, with 118,609 (5.9 %) cases involving mental disorders. There were 2855 admissions with suicidal behavior, constituting 2.4 % of the hospitalizations among youth with mental disorders. Girls represented 73.4 % of all hospitalizations, with a median age of 16 years. Admissions for suicidal behavior saw a four-fold increase during the last decade (p < 0.001). The in-hospital mortality rate for adolescents with suicidal behavior doubled that of those hospitalized for other mental disorders. During the first year of the COVID-19 pandemic, admissions of adolescents with suicidal behavior decreased, only to surge by 2.5-fold during 2021., Conclusion: Hospital admissions for suicidal behavior among adolescents have risen in Spain over the last two decades. Girls represented 73.4 % of these admissions, yet in-hospital mortality was more frequent in boys., Competing Interests: Declaration of competing interest None for all authors., (Copyright © 2024 Elsevier B.V. All rights reserved.)

Objectives: The objectives of this study are as follows: (1) to estimate the prevalence of suicide risk among individuals seeking mental health and addiction (MHA) services in Nova Scotia; (2) to examine the relationship between substance use and suicide risk among this population., Setting: MHA intake programme, a province-wide centralised intake process established in 2019 by the Department of Health and Wellness of Nova Scotia., Participants: We included 22 500 MHA intake clients aged 19-64 years old who contacted MHA intake from 2020 to 2021., Primary Outcome Measures: During the intake assessment, clients were assessed for suicide risk (past suicide attempt, suicidal ideation during the interview or 2 weeks before the interview)., Results: The lifetime prevalence of suicide attempt was 25.25% in the MHA clients. The prevalence of mild and moderate/high suicide risk was 34.14% and 4.08%, respectively. Clients who used hallucinogens had the highest prevalence of mild and moderate/high suicide risk (61.3% and 12.9%, respectively), followed by amphetamine/methamphetamine (47.6% and 13.3%, respectively) and sedative/hypnotics (47.2% and 8.9%, respectively) users. Stimulant (aOR=1.84, 95% CI 1.23 to 2.75) and hallucinogen (aOR=3.54, 95% CI 1.96 to 6.43) use were associated with increased odds of moderate/high suicide risk compared with denying current use. Additionally, alcohol (aOR=1.17, 95% CI 1.06 to 1.30) and tobacco (aOR=1.20, 95% CI 1.10 to 1.30) use were associated with increased odds of mild suicide risk., Conclusion: Suicide behaviours were prevalent among clients seeking MHA services. Substance use is an important factor associated with suicide risk in this population. This result underscored the importance of considering substance use patterns when assessing suicide risk and highlighted the need for targeted interventions and preventive measures for individuals engaging in substance use. Future interventional studies are needed to identify and evaluate effective strategies for reducing substance use and suicide risk among clients of MHA central intake., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)

Objective: Suicide is a critical global health concern. Research indicates that generative artificial intelligence (GenAI) and large language models, such as generative pretrained transformer-3 (GPT-3) and GPT-4, can evaluate suicide risk comparably to experts, yet the criteria these models use are unclear. This study explores how variations in prompts, specifically regarding past suicide attempts, gender, and age, influence the risk assessments provided by ChatGPT-3 and ChatGPT-4., Methods: Using a controlled scenario based approach, 8 vignettes were created. Both ChatGPT-3.5 and ChatGPT 4 were used to predict the likelihood of serious suicide attempts, suicide attempts, and suicidal thoughts. A univariate 3-way analysis of variance was conducted to analyze the effects of the independent variables (previous suicide attempts, gender, and age) on the dependent variables (likelihood of serious suicide attempts, suicide attempts, and suicidal thoughts)., Results: Both ChatGPT-3.5 and ChatGPT-4 recognized the importance of previous suicide attempts in predicting severe suicide risks and suicidal thoughts. ChatGPT-4 also identified gender differences, associating men with a higher risk, while both models disregarded age as a risk factor. Interaction analysis revealed that ChatGPT-3.5 associated past attempts with a higher likelihood of suicidal thoughts in men, whereas ChatGPT-4 showed an increased risk for women., Conclusions: The study highlights ChatGPT-3.5 and ChatGPT-4's potential in suicide risk evaluation, emphasizing the importance of prior attempts and gender, while noting differences in their handling of interactive effects and the negligible role of age. These findings reflect the complexity of GenAI decision-making. While promising for suicide risk assessment, these models require careful application due to limitations and real-world complexities., (© Copyright 2024 Physicians Postgraduate Press, Inc.)

Background: Patients with treatment-resistant depression (TRD) have higher rates of suicidal ideation and a higher suicide attempt prevalence than patients with other types of depression., Purpose: This study was designed to study the suicidality trajectory and relationships between hopelessness, resilient coping, and self-efficacy, respectively, and suicidal ideation and suicide attempts in patients with TRD during hospitalization and at 3 months after discharge., Methods: A longitudinal survey of 53 psychiatric inpatients with TRD was conducted. Suicidality, hopelessness, resilient coping, self-reported medication adherence, and self-efficacy were assessed at Weeks 1 and 2 (T0 and T1) after hospitalization and Week 1 and Months 1 and 3 after discharge. Data were analyzed using a Cox regression model., Results: Suicidality varied across the five time points, with a downward trend observed between T0 and T1 (reflecting the initial effects of inpatient treatment) and an upward trend observed across the 3-month follow-up. Antidepressant overdose was the most common method used for suicide. The risk of high suicidal ideation during follow-up was 1.63, 2.63, and 1.14 times higher, respectively, in participants with a high level of hopelessness, low level of resilient coping, and low self-efficacy. Also, having a higher level of hopelessness and being younger in age increased the risk of attempting suicide by 3.07 times and over 6 times, respectively, compared to older participants., Conclusions/implication for Practice: Suicidality was shown to fluctuate between the in-hospital treatment phase and the first 3 months following discharge in this sample of patients with TRD. Younger age, feelings of hopelessness, low resilience, and low self-efficacy were the top four factors contributing to postdischarge suicide risk. These findings highlight the need for regular patient monitoring and assessment to identify those with TRD who are at high risk of suicide as well as the importance of focusing on hopelessness, resilience, and self-efficacy as predictors of suicide ideation and attempts. Nurses should help patients with TRD, especially those who are younger, and improve and maintain their hope, resilience, and self-efficacy both during hospitalization and shortly after discharge., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2024 The Authors. Published by Wolters Kluwer Health, Inc.)

Importance: Suicide is a leading cause of death among young people. Accurate detection of self-injurious thoughts and behaviors (SITB) underpins equity in youth suicide prevention., Objectives: To compare methods of detecting SITB using structured electronic health information and measure algorithmic performance across demographics., Design, Setting, and Participants: This cross-sectional study used medical records among youths aged 6 to 17 years with at least 1 mental health-related emergency department (ED) visit in 2017 to 2019 to an academic health system in Southern California serving 787 000 unique individuals each year. Analyses were conducted between January and September 2023., Exposures: Multiexpert electronic health record review ascertained the presence of SITB using the Columbia Classification Algorithm of Suicide Assessment. Random forest classifiers with nested cross-validation were developed using (1) International Statistical Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) codes for nonfatal suicide attempt and self-harm and chief concern and (2) all available structured data, including diagnoses, medications, and laboratory tests., Main Outcome and Measures: Detection performance was assessed overall and stratified by age group, sex, and race and ethnicity., Results: The sample comprised 2702 unique youths with an MH-related ED visit (1384 youths who identified as female [51.2%]; 131 Asian [4.8%], 266 Black [9.8%], 719 Hispanic [26.6%], 1319 White [48.8%], and 233 other race [8.6%]; median [IQR] age, 14 [12-16] years), including 898 children and 1804 adolescents. Approximately half of visits were related to SITB (1286 visits [47.6%]). Sensitivity of SITB detection using only codes and chief concern varied by age group and increased until age 15 years (6-9 years: 59.3% [95% CI, 48.5%-69.5%]; 10-12 years: 69.0% [95% CI, 63.8%-73.9%]; 13-15 years: 88.4% [95% CI, 85.1%-91.2%]; 16-17 years: 83.1% [95% CI, 79.1%-86.6%]), while specificity remained constant. The area under the receiver operating characteristic curve (AUROC) was lower among preadolescents (0.841 [95% CI, 0.815-0.867]) and male (0.869 [95% CI, 0.848-0.890]), Black (0.859 [95% CI, 0.813-0.905]), and Hispanic (0.861 [95% CI, 0.831-0.891]) youths compared with adolescents (0.925 [95% CI, 0.912-0.938]), female youths (0.923 [95% CI, 0.909-0.937]), and youths of other races and ethnicities (eg, White: 0.901 [95% CI, 0.884-0.918]). Augmented classification (ie, using all available structured data) outperformed classification with codes and chief concern alone (AUROC, 0.975 [95% CI, 0.968-0.980] vs 0.894 [95% CI, 0.882-0.905]; P < .001)., Conclusions and Relevance: In this study, diagnostic codes and chief concern underestimated SITB prevalence, particularly among minoritized youths. These results suggest that priority on algorithmic fairness in suicide prevention strategies must extend to accurate detection of youths with suicide-related emergencies.

Importance: Few suicide risk identification tools have been developed specifically for American Indian and Alaska Native populations, even though these populations face the starkest suicide-related inequities., Objective: To examine the accuracy of existing machine learning models in a majority American Indian population., Design, Setting, and Participants: This prognostic study used secondary data analysis of electronic health record data collected from January 1, 2017, to December 31, 2021. Existing models from the Mental Health Research Network (MHRN) and Vanderbilt University (VU) were fitted. Models were compared with an augmented screening indicator that included any previous attempt, recent suicidal ideation, or a recent positive suicide risk screen result. The comparison was based on the area under the receiver operating characteristic curve (AUROC). The study was performed in partnership with a tribe and local Indian Health Service (IHS) in the Southwest. All patients were 18 years or older with at least 1 encounter with the IHS unit during the study period. Data were analyzed between October 6, 2022, and July 29, 2024., Exposures: Suicide attempts or deaths within 90 days., Main Outcomes and Measures: Model performance was compared based on the ability to distinguish between those with a suicide attempt or death within 90 days of their last IHS visit with those without this outcome., Results: Of 16 835 patients (mean [SD] age, 40.0 [17.5] years; 8660 [51.4%] female; 14 251 [84.7%] American Indian), 324 patients (1.9%) had at least 1 suicide attempt, and 37 patients (0.2%) died by suicide. The MHRN model had an AUROC value of 0.81 (95% CI, 0.77-0.85) for 90-day suicide attempts, whereas the VU model had an AUROC value of 0.68 (95% CI, 0.64-0.72), and the augmented screening indicator had an AUROC value of 0.66 (95% CI, 0.63-0.70). Calibration was poor for both models but improved after recalibration., Conclusion and Relevance: This prognostic study found that existing risk identification models for suicide prevention held promise when applied to new contexts and performed better than relying on a combined indictor of a positive suicide risk screen result, history of attempt, and recent suicidal ideation.

Importance: Suicide risk is a global public health crisis, with suicide ranking as a consistent leading cause of death among adults in the US. Autistic individuals and transgender or gender-nonconforming (TGNC) individuals represent populations with notably elevated rates of suicidal thoughts and behaviors (STBs)., Objective: To characterize suicidal thoughts and behaviors among TGNC and autistic individuals, using a large, nationally representative sample., Design, Setting, and Participants: This study is a secondary analysis of cross-sectional data from students at colleges and universities throughout the US who participated in the American College Health Association National College Health Assessment from 2019 to 2023., Exposures: Autistic and TGNC identities were self-reported by participants., Main Outcomes and Measures: The frequency of intersectionality of autism and TGNC identities and whether those who had intersectional marginalized identities had increased likelihood of STBs were examined. STBs were self-reported by participants. A series of moderated regression analyses were performed to examine how the interaction between autism and possessing a marginalized gender identity (ie, TGNC status) was associated with STBs., Results: The sample included 41 507 college students with a mean (SD) age of 23.35 (6.83) years. A total of 2410 participants (5.81%) identified as being TGNC. Overall, 326 TGNC participants (13.53%) also identified as autistic, whereas 625 of those who identified as cisgender (1.58%) also identified as autistic. Gender identity and autism were associated with greater odds of STBs. For suicidal ideation, gender identity had an odds ratio (OR) of 3.34 (95% CI, 2.99-3.73), and autism had an OR of 2.06 (95% CI, 1.76-2.42). For suicide attempts, gender identity had an OR of 2.74 (95% CI, 2.13-3.52), and autism had an OR of 2.39 (95% CI, 1.62-3.52). A significant interaction existed for attempts (OR, 0.51; 95% CI, 0.27-0.97); nonautistic cisgender individuals had the lowest attempt rate., Conclusions and Relevance: This cross-sectional study addresses the dearth of information on how intersectionality in gender and autism status impacts the risk of STBs, and the results confirm the elevated risk of STBs among TGNC and autistic populations. Interventions are needed to support college students with these identities.

Importance: Suicide is a leading cause of death in US youths., Objective: To assess whether screening with supplemental items 10 to 13 on the Patient Health Questionnaire-9 modified for teens (PHQ-9M) improves prediction of youth suicide attempts beyond the information provided by the first 9 items alone (the PHQ-9)., Design, Setting, and Participants: This retrospective cohort study used a retrospective cohort of adolescents aged 12 to 17 years who were screened for depression in outpatient facilities within a pediatric health care system between January 1, 2016, and December 31, 2022, with up to 1 year of follow-up to assess the occurrence of suicidal behavior. Follow-up was completed on December 31, 2023., Exposure: Screening with the PHQ-9M., Main Outcomes and Measures: This study developed and compared prediction using 3 Cox proportional hazards regression models (CR-9, CR-13, and CR-3) of subsequent suicide attempts, determined by the hospital's electronic health records up to 1 year following the last PHQ-9M screening. The CR-9 model used the PHQ-9 and the CR-13 model used all 13 items of PHQ-9M. The CR-3 model used the 3 most impactful variables selected from the 13 PHQ-9M items and PHQ-9 total score. All models were evaluated across 4 prediction horizons (30, 90, 180, and 365 days) following PHQ-9M screenings. Evaluation metrics were the area under the receiver operating characteristic curve (AUROC) and the area under the precision recall curve (AUPRC)., Results: Of 130 028 outpatients (65 520 [50.4%] male) with 272 402 PHQ-9M screenings, 549 (0.4%) had subsequent suicide attempts within 1 year following the PHQ-9M screening. The AUROC of the CR-9 model in the 365-day horizon was 0.77 (95% CI, 0.75-0.79); of the CR-13 model, 0.80 (95% CI, 0.78-0.82); and of the CR-3 model, 0.79 (95% CI, 0.76-0.81); the AUPRC of the CR-9 model was 0.02 (95% CI, 0.02-0.03); of the CR-13 model, 0.03 (95% CI, 0.02-0.03); and of the CR-3 model, 0.02 (95% CI, 0.02-0.03). The 3 most impactful items using adjusted hazard ratios were supplemental item 13 (lifetime suicide attempts; 3.06 [95% CI, 2.47-3.80]), supplemental item 10 (depressed mood severity in the past year; 2.99 [95% CI, 2.32-3.86]), and supplemental item 12 (serious suicidal ideation in the past month; 1.63 [95% CI, 1.25-2.12]). All of the models achieved higher AUROCs as prediction horizons shortened., Conclusions and Relevance: In this cohort study of adolescent PHQ-9M screenings, the supplemental items on PHQ-9M screening improved prediction of youth suicide attempts compared with screening using the PHQ-9 across all prediction horizons, suggesting that PHQ-9M screening should be considered during outpatient visits to improve prediction of suicide attempts.