A meta-analysis of acute use of alcohol and the risk of suicide attempt

A dose-response meta-analysis on the relationship between average amount of alcohol consumed and death by suicide

BACKGROUND

To determine whether sub-clinical levels of drinking may contribute to suicide risk, and whether the risk differs by sex, we aimed to evaluate the relationship between average amount of alcohol consumed per day and death by suicide.

METHODS

A systematic literature search was performed in Embase, Medline, PsycINFO, PubMed, and Web of Science from database inception up to April 27, 2022. The search strategies incorporated a combination of medical subject headings and keywords for "alcohol use" and "suicide". One-stage dose-response meta-analyses using a restricted maximum likelihood random-effect estimator were conducted to explore the relationship between average alcohol volume consumed and suicide, by sex. Three different shapes of the dose-response relationship-linear (on the log-scale), quadratic, and restrictive cubic splines-were tested.

RESULTS

A total of eight studies were included (three studies for females (n=781,205), and eight studies for males (n=1,215,772)). A linear dose-response relationship between average alcohol volume consumed and the log-risk of suicide was identified for both males and females. For males and females, a relative risk (RR) of 1.11 (95% CI: 1.05, 1.18) and 1.64 (95% CI: 1.07, 2.51) for suicide when consuming an average of 10 g of pure alcohol per day compared to lifetime abstention, 1.38 (95% CI: 1.14, 1.66) and 4.39 (95% CI: 1.21, 15.88) for 30g/day, and 1.71 (95% CI: 1.25, 2.33) and 11.75 (95% CI: 1.38, 100.33) for 50g/day, respectively.

CONCLUSIONS

As consumption increases, the risk of suicide increases proportionally. The risk of suicide associated with average daily alcohol consumption may be elevated for females, compared with males. Albeit, more research is needed, particularly among females.

Group based metacognitive therapy for alcohol use disorder: a pilot study

Introduction

Alcohol use disorder (AUD) is a severe clinical disorder, which has been associated with 5.3% of death worldwide. Although several treatments have been developed to improve AUD symptomatology, treatment effects were moderate, with a certain amount of patients displaying symptom deterioration after treatment termination. Moreover, outpatient treatment placements become increasingly scarce, thus necessitating more efficient treatment options. Therefore, the aim of the present study was to investigate the efficacy, feasibility, and acceptability of a newly invented, short, group based metacognitive therapy (MCT) for patients diagnosed with AUD.

Method

Seven patients were treated with eight sessions of group based MCT using a single case series design with an A-B replication across patients. Patients were assessed one month and one week before treatment, as well as one week and three months after treatment termination.

Results

Patients improved significantly and with large effect sizes regarding dysfunctional metacognitive beliefs, desire thinking/craving and depressive symptoms up to three months after treatment termination. AUD symptomatology as well as positive and negative metacognitive beliefs improved at post-treatment, but improvements could not be maintained at follow-up. All included patients completed the treatment and were highly satisfied.

Conclusion

The presented findings show preliminary evidence for the efficacy, feasibility, and acceptability of the implemented group based MCT treatment. Large scale randomized controlled trials (RCTs) are needed to confirm the effectiveness of the developed program for patients diagnosed with AUD.

Can profiles of behaviors occurring within 48 h of a suicide attempt predict future severity of suicidal thoughts and reattempt?: An examination of hospitalized patients 12 Months post-discharge

Behavioral warning signs (WS) are near-term changes within individuals, which aid in determining imminent risk for suicide attempts. However, those who attempt suicide differ in their engagement of WS, and it is unclear if these differences relate to future risk of suicidal behavior. Using a sample of 132 adults presenting to a hospital following a suicide attempt, the current study sought to determine if differences in engagement in WS for the index attempt prospectively predicted suicide attempt, frequency of ideation, and intensity of suicide ideation 12 months post discharge. Latent class analyses (LCAs) conducted on 6 behaviors (i.e., alcohol use, nightmares, interpersonal negative life events, suicide communication, risky behavior, low sleep, and high sleep) found a 5-class solution optimally fit the data. One identified class, characterized by engagement in risky behaviors the hours before an attempt differed from other identified classes in terms of risk for future suicidal ideation and behaviors. More specifically, participants in "High Risky Behavior" class had higher rates of 12-month suicide reattempt, significantly more frequent suicide ideation, and significantly worse intensity of suicide ideation during the 12 months following their index attempt compared to participants endorsing typical patterns of WS. These results held when adjusting for various traditional baseline covariates (e.g., depressive symptoms). The current study demonstrates that patterns of behavioral WS may be utilized as their own prognostic indicator of future suicidal ideation and behaviors among high-risk individuals reporting a recent suicide attempt, which can inform post-discharge clinical intervention and prevention efforts.

Alcohol use disorder as a moderator of the relationship between posttraumatic stress disorder and suicidality among military personnel

BACKGROUND

Alcohol use disorder (AUD), posttraumatic stress disorder (PTSD), and suicide are substantial public health concerns among military service members, yet the nature of their relationships is not well understood. Here, we tested the hypothesis that AUD moderates the relationship between PTSD symptom severity and suicidal ideation.

METHODS

This secondary analysis uses data collected at baseline for a randomized clinical trial. The sample consists of 160 active-duty service members from three service branches (Army, Air Force, and Navy). All participants met diagnostic criteria for PTSD and were not engaged in evidence-based PTSD treatment at the time of enrollment. Zero-inflated Poisson generalized linear regression models were used to test the associations of PTSD and AUD symptom severity with the presence and severity of suicidal ideation.

RESULTS

Findings suggest that AUD symptom severity moderates (i.e., amplifies) the relationship between PTSD symptoms and severity of suicidal ideation among military personnel with untreated PTSD. Among service members with mild or absent AUD, we found no significant association between PTSD symptoms and the severity of suicidal ideation. However, when AUD severity was average (i.e., sample mean) or high (mean + 1SD), PTSD symptoms were significantly positively associated with the severity of suicidal ideation.

CONCLUSIONS

This study highlights the importance of assessing AUD and PTSD as a part of suicide risk evaluations of veterans. The results also provide strong support for the maintenance and further development in the military health system of treatment programs that simultaneously address AUD and PTSD comorbidity.

The Clinical Sequelae of the COVID-19 Pandemic: Loneliness, Depression, Excessive Alcohol Use, Social Media Addiction, and Risk for Suicide Ideation

BACKGROUND

Depression, loneliness, and alcohol use disorder are associated with suicide ideation. The ongoing COVID-19 pandemic has challenged our social structures with social distancing and isolation policies implemented worldwide, severely restricting social interactions. Studies regarding the effects of the pandemic are starting to shed light on the harmful psychological effects of these policies.

AIMS

This study aims to identify whether the increase in suicidal ideation among college students (mostly young adults) during the pandemic was due to the known risk factors of loneliness, depression, alcohol use disorder, social media addiction, and other background variables.

METHOD

Nine hundred and eleven college students completed self-report questionnaires assessing suicidal risk, depressive symptoms, loneliness, excessive alcohol use, and social media use.

RESULTS

During the pandemic suicidal ideation was associated with loneliness (χ2 = 54.65, p < 0.001), depressive symptoms (χ2 = 110.82, p < 0.001), alcohol use disorder (χ2 = 10.02, P < 0.01) and social media addiction (χ2 = 13.73, P < 0.001). Being single [OR = 2.55; p < 0.01], and self-identifying as a non-heterosexual [OR = 2.55; p < 0.01] were found to constitute additional risk factors.

LIMITATIONS

The structural nature of quantitative self-report scales does not offer the flexibility of gaining a deeper understanding of causes, specific to particular circumstances that may lead participants to ideate on suicide, even briefly.

CONCLUSIONS

Social distancing and isolation policies during the COVID-19 pandemic constitute an additional factor in the risk for suicide ideation.

Investigating Associations of Substance Use and Dependence With Planned Versus Unplanned Suicide Attempt

OBJECTIVE

The present analyses investigated substance use and dependence as correlates of past-year suicide attempt and of unplanned versus planned suicide attempt in a nationally representative sample.

METHOD

Participants were 214,505 adults (52% female; 64% White, 12% Black, <1% Native American, <1% Pacific Islander, 6% Asian, 16% Hispanic, 2% multiracial) from the 2015-2019 National Surveys on Drug Use and Health. Four logistic regression models were constructed. Models 1 and 2 examined substance use and dependence, respectively, as correlates of suicide attempt. Models 3 and 4 evaluated whether substance use and dependence were related to suicide attempt in the absence of a plan.

RESULTS

In Models 1 and 2, higher cigarette smoking and marijuana use; any use of opioids, sedatives, and hallucinogens; and greater dependence on nicotine, alcohol, marijuana, and any illicit or prescription drug were associated with elevated risk for suicide attempt. Associations with cigarette smoking, sedative use, and dependence on nicotine, alcohol, and any illicit or prescription drug remained statistically significant in sensitivity analyses limited to individuals with suicidal ideation. In Models 3 and 4, substance use and dependence were unrelated to risk for unplanned (vs. planned) suicide attempt.

CONCLUSIONS

Although substance-related outcomes are consistently associated with suicide attempt, there was little evidence that substance use and dependence are related to risk for unplanned versus planned suicidal behavior.

Screening student drinking behaviors: examining AUDIT criterion validity using CIDI-based alcohol use disorder as the 'gold standard'

Introduction

High levels of alcohol consumption among college students have been observed across countries. Heavy drinking episodes are particularly prevalent in this population, making early identification of potentially harmful drinking critical from a public health perspective. Short screening instruments such as the Alcohol Use Disorders Identification Test (AUDIT) are serviceable in this regard. However, there is a need for studies investigating the criterion validity of AUDIT in the student population. The aim was to examine the criterion validity of the full AUDIT and AUDIT-C (the first three items directly gauging consumption patterns) in a sample of college and university students using 12-month prevalence of alcohol use disorder derived from an electronic, self-administered version of the World Health Organization (WHO) Composite International Diagnostic Interview, fifth version (CIDI 5.0), which serves as the 'gold standard'.

Methods

The study population of the current study is derived from the SHoT study (Students' Health and Wellbeing Study), which is a large national survey of students enrolled in higher education in Norway. In a follow-up study of mental disorders among participants of the SHoT2022 study, students were invited to complete a self-administered electronic version of the CIDI. A random sample of 4,642 participants in the nested CIDI-sample was asked to fill out a set of screening instruments, including AUDIT, before starting CIDI. Based on Youden Index maximization, we estimated the sex-specific optimal cut-offs for AUDIT and AUDIT-C in relation to alcohol use disorder, as determined by CIDI.

Results

For the full AUDIT, the optimal cut-offs were 9 for males and 10 for females. The corresponding cut-offs for AUDIT-C were 6 for males and 5 for females. The same optimal cut-offs for both the full AUDIT and AUDIT-C were replicated in bootstrapped analyses with 1,000 runs.

Conclusion

The full AUDIT demonstrated acceptable criterion validity with a balance between sensitivity and specificity. However, for AUDIT-C, caution should be exercised when interpreting screening results among college and university students. In conclusion, the full AUDIT is a reliable screening instrument for college and university students, while further modification may be needed for AUDIT-C in this setting.

Reasons for contacting a crisis line and the initiation of emergency dispatches

OBJECTIVE

To better understand processes of mental health crisis line utilization by examining associations between reasons for contacting a crisis line with the initiation of emergency dispatches (i.e., activation of 911 or local emergency services) in a national sample.

METHODS

Contacts (i.e., calls, texts, email, and chats) to the Veterans Crisis Line (VCL) across 2017-2020 were used to examine associations among stated reasons for the contact and the use of an emergency dispatch. Hierarchical logistic regression models were used to determine the odds of an emergency dispatch by reason for the contact.

RESULTS

Suicidal thoughts/crisis were present in 61.5% of contacts that ended in emergency dispatches and were associated with the largest adjusted odds of a dispatch, (Adjusted Odds Ratio [AOR] [95% CI] = 9.34 [9.21, 9.48]), followed by homicidal thoughts/crisis (AOR [95% CI] = 3.84 [3.73, 3.95]), and third-party concerns (AOR [95% CI] = 2.42 [2.37, 2.47]). Substance use/ addiction (AOR [95% CI] = 2.14 [2.10, 2.18]), abuse and violence (AOR [95% CI] = 1.89 [1.82, 1.96]), and physical health (AOR [95% CI] = 1.87 [1.84, 1.91]) were also associated with increased odds of a dispatch.

CONCLUSIONS

Emergency dispatches are primarily used in response to imminent suicide risk but are also used in other potentially violent or lethal circumstances such as homicides, violence or abuse, and other crises. These findings highlight the role that crisis lines play in emergency service delivery, and the need to better understand how they are utilized under real world circumstances.

High Risk or Risky Highs: Understanding the Links Between Alcohol and Cannabis Use on the Transition From Suicidal Ideation to Attempts in Australian Men

Alcohol and cannabis use are consistently associated with greater risk of suicide, particularly among men and in higher-income countries (e.g., Australia). Adult data (n = 7,464) from waves 1 and 2 of Ten to Men: The Australian Longitudinal Study on Male Health were used to explore whether alcohol and/or cannabis use increased the longitudinal risk of a suicide attempt among suicidal ideators. Cannabis use was associated with increased risk of transitioning from suicidal ideation to making a suicide attempt; no association was found for alcohol. Broadly, these findings indicate that greater cannabis but not alcohol use may increase risk of transitioning to making a suicide attempt among those who are thinking about suicide.

Protocol for creating a dataset of U.S. state alcohol-related firearm laws 2000-2022

Firearms are a major source of preventable morbidity and mortality in the United States, contributing to over 48,000 deaths in 2022 and generating societal costs in excess of $500 billion. A body of work has examined the relationship between US state level firearm laws and health outcomes, generally finding that some firearm regulations are associated with lower firearm-related mortality. Alcohol has been identified as an additional risk factor for both homicides and suicide and stronger state alcohol laws have been associated with lower rates of suicide. To date, there are no empirical studies that have investigated the impact of laws over a long period of time that target the intersection of alcohol and firearm. One reason for this may be because there is no existing dataset that includes the range of these state laws over time. This study describes the protocol for collecting, coding and operationalizing these legal data.

Analyzing 14-years of suicide rates in Chile: Impact of alcohol policy, domestic violence, and a suicide prevention program

Suicide is a major public health problem worldwide with far-reaching effects on families, communities, and societies. Influencing factors range from macro-level interventions like alcohol control policies and suicide prevention programs to individual contributors such as alcohol abuse and domestic violence. This study aimed to examine the relationship between Chile's suicide rate changes from 2002 to 2015 and the Alcohol Act of 2004, a national suicide prevention program implemented in 2007, alcohol abuse, and domestic violence. Assembling a unique longitudinal dataset from Chilean public institutions, the study employed an instrumental variable time-series cross-regional design. Results indicated that the Alcohol Act was not associated with suicide rates, domestic violence exhibited a significant association with increased suicide rates, and the national suicide prevention program was linked to reductions in suicide rates, especially among males. These findings align with research from neighbouring countries, showcasing the efficacy of suicide prevention programs in decreasing suicide rates in Chile. Results highlight the importance of integrating protocols to early-detect domestic violence in suicide prevention programs, as well as the need to further improving alcohol control policies to complement suicide prevention programs.

Differentiating the association between age of alcohol use initiation and conditional suicidal behaviors among adolescents

INTRODUCTION

Suicide and early alcohol use initiation are public health concerns. Previous studies have explored the associations between age of alcohol use initiation and suicidal behaviors, which progresses from ideation to action. Distinguishing between the various associations can help gain a deeper understanding of suicidal behaviors and aid in developing social suicide prevention strategies.

METHODS

The study utilized the Youth Risk Behavior Survey to investigate this association. A total of 17 209 students were finally included in the study. Conditional suicidal behaviors included no suicidal behavior (NS), suicidal ideation without a plan or attempt (SINPA), suicide plan without an attempt (SPNA) and suicide attempt (SA).

RESULTS

Among 17 209 students, the prevalence of suicidal ideation, suicide plan, and suicide attempt were 21.4%, 17.3%, and 11.1%, respectively. Moreover, 15.2% of the students used alcohol before age 13, whereas 31.7% of students used alcohol at age 13 or older. Compared to NS, students using alcohol showed significant associations with SA (OR = 2.34, p < .001; OR = 1.29, p < .01), SPNA (OR = 1.68, p < .001; OR = 1.19, p < .05) and SINPA (OR = 1.55, p < .001; OR = 1.40, p < .001). Comparing with SINPA and SNPA, students using alcohol before age 13 were associated with SA (OR = 1.61, p < .001; OR = 1.46, p < .001), whereas those using alcohol at or after the age 13 were not associated with SA (OR = 0.98, p > .05; OR = 1.09, p > .05).

DISCUSSION

This study demonstrated that early alcohol use initiation was significantly associated with suicide attempts among students with suicidal ideations or plans.

Understanding complex causes of suicidal behaviour among graduates in Bangladesh

This study utilizes both fieldwork and desk-based discourse analysis of newspaper reports to investigate the concerning number of suicides among graduates in Bangladesh. According to some reports, a majority of suicide cases involve young adults who are either currently studying at university or have recently completed their degree (between the ages of 20 and 32). This research contends that patriarchal social expectations in Bangladesh place significant pressure on young adults to secure well-paying jobs to support their families and uphold their family's status, which can have a negative impact on their mental health. Furthermore, this article identifies additional risk factors that contribute to the high suicide rates among graduates in Bangladesh. These factors include unemployment, poverty, relationship problems, drug addiction, political marginalization, and the stigma of shame, all of which can cause low self-esteem and suicidal thoughts. Moreover, the research suggests that families in Bangladesh have not been providing adequate support to their young members when facing challenges in life. On the contrary, families have added to the pressure on young adults, which can be attributed to joiner's theory of the effect of industrialization on family norms and values.

Early closing of hotels: Impacts on alcohol consumption, drunkenness, liver disease and injury mortality

INTRODUCTION

Early (six o'clock) closing of hotels was introduced in 1916 in Australia to curb heavy drinking. It lasted between 21 and 51 years in four Australian states. The aim of this study is to assess the impact of early closing on alcohol consumption, liver disease mortality rates, drunkenness and various forms of injury.

METHODS

Time series analysis was undertaken using an Autoregressive Integrated Moving Averages modelling technique. Relevant data were derived from annual publications of the Australian Bureau of Statistics and its predecessor organisations.

RESULTS

Early closing had a substantial downward effect on alcohol consumption across 1901-2006. It had a substantial and beneficial effect on liver disease mortality. Drunkenness rates declined pre-World War II (WWII), though they increased post-WWII. Rates for homicide decreased substantially, and close to substantially for suicide and female homicide. Early closing impacts were more beneficial pre-WWII than post-WWII.

DISCUSSION AND CONCLUSIONS

Early closing has not been favourably remembered in Australia in recent years. However, all pre-WWII impacts of early closing were beneficial including public drunkenness rates. Post-WWII, beneficial effects were less clear-cut and drunkenness increased. Resistance to early closing may also have arisen in the 1950s as families had more disposable income and ability to consume alcohol. While universal six o'clock closing is no longer feasible or desirable, opening hours and days for hotels are still part of the policy discussion in Australia. The experience of early closing pre-WWII gives confidence that the impacts of these can be beneficial.

Proximity of alcohol outlets and presentation to hospital by young people after self-harm: A retrospective geospatial study using the integrated data infrastructure

OBJECTIVES

There is a well-established association between alcohol use, misuse, intoxication and self-harm, the latter of which is associated with suicide. This study aimed to better understand the association between proximity to alcohol outlets and the likelihood of young people presenting to hospital following self-harm.

METHODS

This was a nationwide retrospective geospatial study using data from the New Zealand Integrated Data Infrastructure using population-level data for 10-29-year-olds for the 2018 and 2017 calendar years. Presentations to hospital following self-harm were identified using the national minimum data set. Proximity to alcohol outlets was defined in road network distance (in kilometres) and ascertained using Integrated Data Infrastructure geospatial data. Alternative measures of proximity were employed in sensitivity analyses. Complete-case two-level random intercept logistic regression models were used to estimate the relationship between alcohol outlet proximity and hospital presentation for self-harm. Adjusted models included sex, age, ethnicity, area-level deprivation, urbanicity and distance to nearest medical facility. Analyses were also stratified by urbanicity.

RESULTS

Of the 1,285,368 individuals (mean [standard deviation] age 20.0 [5.9] years), 7944 (0.6%) were admitted to hospital for self-harm. Overall, the odds of presenting to hospital for self-harm significantly decreased as the distance from the nearest alcohol outlet increased, including in adjusted models (adjusted odds ratio 0.980; 95% confidence interval = [0.969-0.992]); the association was robust to changes in the measure of alcohol proximity. The effect direction was consistent across all categorisations of urbanicity, but only statistically significant in large urban areas and rural areas.

CONCLUSIONS

The findings of this study show a clear association between young people's access to alcohol outlets and presentation to hospital for self-harm and may provide a mandate for government policies and universal interventions to reduce young people's access to alcohol outlets. Further research regarding causative mechanisms is needed.

The role of alcohol use in pesticide suicide and self-harm: a scoping review

PURPOSE

Suicide and self-harm by pesticide self-poisoning is common in low- and middle-income countries (LMICs). Alcohol is an important risk factor for self-harm; however, little is known about its role in pesticide self-poisoning. This scoping review explores the role that alcohol plays in pesticide self-harm and suicide.

METHODS

The review followed the Joanna Briggs Institute scoping review guidance. Searches were undertaken in 14 databases, Google Scholar, and relevant websites. Articles were included if they focussed on pesticide self-harm and/or suicide and involvement of alcohol.

RESULTS

Following screening of 1281 articles, 52 were included. Almost half were case reports (n = 24) and 16 focussed on Sri Lanka. Just over half described the acute impact of alcohol (n = 286), followed by acute and chronic alcohol use (n = 9), chronic use, (n = 4,) and only two articles addressed harm to others. One systematic review/meta-analysis showed increased risk of intubation and death in patients with co-ingested alcohol and pesticides. Most individuals who consumed alcohol before self-harming with pesticides were men, but alcohol use among this group also led to pesticide self-harm among family members. Individual interventions were recognised as reducing or moderating alcohol use, but no study discussed population-level alcohol interventions as a strategy for pesticide suicide and self-harm prevention.

CONCLUSION

Research on alcohol's role in pesticide self-harm and suicide is limited. Future studies are needed to: further assess the toxicological effects of combined alcohol and pesticide ingestion, explore harm to others from alcohol including pesticide self-harm, and to integrate efforts to prevent harmful alcohol use and self-harm.

Sleep measures as a predictor of suicidal ideation among high-risk adolescents

Suicide is the second leading cause of death among youth aged 15-24 years. Identifying modifiable risk factors relevant to adolescents is crucial for suicide prevention. Sleep patterns have been linked to suicidality in adults, but lack sufficient study in youth. This ecological momentary assessment (EMA) study aimed to explore the relationship between objectively and subjectively measured sleep characteristics and next-day suicidal ideation in high-risk youth. We included 29 adolescents (12-18 years old) admitted to the inpatient psychiatric ward post-suicide attempt or due to suicidal intent within the previous month. We conducted objective (actigraphy) and subjective (sleep diary) sleep pattern assessments over ten consecutive days. Daily suicidal ideation was evaluated using a questionnaire based on the validated C-SSRS interview. A significant positive association was observed between sleep onset latency (SOL) and expressing a "death wish" the following day (OR = 1.06, 95% CI [1-1.11], p = .04), with each minute of longer SOL increased the risk for a death wish the following day by 6%. In addition, a marginally significant negative association was observed between total sleep time (TST) and expressing a "death wish" the following day (OR = 0.57, 95% CI [0.3-1.11], p = 0.1), with each one-hour decrease in objectively measured TST increasing the odds of a death wish by 43%. Our study highlights the interplay between sleep patterns and suicidal ideation, with SOL and TST playing a significant role that may function as proximal risk factors for suicidality and as a target for intervention while treating suicidal youth.

A psychometric evaluation of the Life Attitudes Schedule-Short Form

The Life Attitudes Schedule-Short Form (LAS-SF) is a measure of suicide proneness featuring various conceptual models. We tested four competing LAS-SF factor structures, as well as construct validity with mental health and suicide metrics. Community dwelling adults (N = 488) completed an online cross-sectional survey. Results supported a four factor (i.e., death-related, health-related, injury-related, and self-related subscales) LAS-SF structure with one higher order factor. Death-related, injury-related, and self-related subscales demonstrated moderate positive associations with mental health and suicidal ideation. Death-related and self-related subscales showed links with suicidal ideation, as well as suicide and depression risk (controlling for other factors). This study is important in highlighting suicide proneness theory may need to be refined. LAS-SF uses include possible risk screening in clinical settings and future focus on the psychological death aspects of the LAS-SF in prospective research. Study limitations include lack of sample diversity and cross-sectional design.

Implementing Suicide Risk Screening in a Virtual Addiction Clinic

The purpose of this study was to describe the feasibility of implementing suicide risk screening in a virtual addiction clinic. Suicide risk screening was implemented in a virtual addiction clinic serving individuals with substance use disorders (SUD) using a quality improvement framework. One-hundred percent (252/252) of eligible patients enrolled in the clinic were screened for suicide risk (44% female; M[SD] age = 45.0[11.0] years, range = 21-68 years). Nineteen patients (8%) screened positive for suicide risk. After screening, no patients required emergency suicide interventions (100% non-acute positive). Notably, 74% (14/19) of those who screened positive did so by endorsing at least one past suicide attempt with no recent ideation. Suicide risk screening in virtual addiction clinics yields important clinical information for high-risk SUD populations without overburdening workflow with emergency services. Given the high proportion of non-acute positive screens based on suicide attempt histories with no recent ideation, clinicians may utilize information on suicide attempt history to facilitate further mental healthcare.

Characteristics of Attempted and Completed Suicides During the COVID-19 Pandemic

BACKGROUND

This study aimed to describe patients admitted for attempted or completed suicide during the COVID-19 pandemic.

METHODS

A 1-year retrospective review was performed of adult patients admitted for attempted or completed suicide.

RESULTS

Of the 30 patients included, most injuries involved firearms (37%) and cutting/piercing (30%). Sixty-three percent of patients presented with an Injury Severity Score ≥16, and 37% of injuries involved the head. Upon admission, an alcohol test was completed for 83% of patients, 56% of whom tested positive. Thirty percent of patients died from their injuries, with all but one involving a firearm. Most of those who survived to discharge (62%) were discharged to an inpatient behavioral health facility.

DISCUSSION

The current study indicated a large proportion of suicides during the COVID-19 pandemic involved firearms and alcohol use. These findings point to the need for interventions aimed at preventing suicide and substance abuse during pandemic situations.

Suicidality by Sexual Identity and Correlates Among American Indian and Alaska Native High School Students

PURPOSE

This study aims to determine the prevalence of suicidality among American Indian and Alaskan Native (AI/AN) adolescents. Additionally, we measured suicidality, stratified by sex, and its association with sexual identity, sexual violence, and binge drinking.

METHODS

We pooled data from the Youth Risk Behavior Survey from 2005 to 2019 to analyze the prevalence of sexual minorities, forced sex, and binge drinking, and their association with suicidality using basic descriptive statistics followed by adjusted odds ratios stratified by sex among AI/AN youth.

RESULTS

19% of AI/AN participants reported having suicidal thoughts and 14% reported having a previous suicide attempt. More than 17% of AI/AN participants identified as sexual minority youth (SMY). Compared to AI/AN heterosexual youth, AI/AN bisexual youth had significantly higher odds of reporting suicidal thoughts (aOR = 16.01), planning (aOR = 12.4), and previous attempts (aOR = 7.73). This pattern was also significantly demonstrated for AI/AN gay/lesbian youth. 43% of all AI/AN participants reported being forced into sexual intercourse. The presence of binge drinking was associated with higher odds of suicidal thoughts for both females and males compared to those who did not binge drink.

DISCUSSION

At the intersection of multiple marginalization, AI/AN SMY have a high mental health burden, demonstrating the need for culturally informed, community-led, and targeted mental health support focused on SMY AI/AN. Though this study fails to capture the heterogeneity within the AI/AN community, as nuances exist at the tribal level, these results demonstrate work needs to be done to support the health burden that AI/AN youth carry.

Evaluation of the risk relationship between average alcohol volume consumed and suicide: An analysis of mortality linked cohort data

Objective

To evaluate the relationship between average alcohol volume consumed per day and suicide.

Methods

Data from the annual, cross-sectional US National Health Interview Survey, 1997-2018, was obtained, and linked to the 2019 National Death Index. The association between average alcohol volume consumed in grams per day (g/day) and suicide was quantified using Cox proportional hazards model (multiplicative) and Aalen's additive hazard model. All analyses were stratified by sex, and adjusted for education, marital status, race/ethnicity, and survey year.

Results

On the multiplicative scale, for males, former drinkers and those who consumed on average (40, 60] g/day had about 53% (HR=1.53, 95% CI: 1.10, 2.13) and 77% (HR=1.77, 95% CI: 1.17, 2.66) greater risk of dying by suicide, compared to lifetime abstainers, respectively. There was no significant association found for former or current drinkers among females, on the multiplicative scale. On the additive scale, for males and females, being a former drinker was associated with 11.4 (95% CI: 2.3, 20.4) and 5.6 (95% CI: 0.8, 10.4) additional deaths per 100,000 person years, compared to lifetime abstainers. For males only, drinking (40, 60] g/day on average was associated with 23.2 (95% CI: 6.7, 39.7) additional deaths per 100,000 person years. Level of education was not found to modify the focal relationship for males or females.

Conclusions

The findings suggest that the relationship between average alcohol volume consumed per day and suicide is nuanced. Additional research on the respective relationship is needed, including repeated measures of average alcohol consumption over time.

What is already known on this topic

There is a dearth of studies on the sex-specific relationship between average alcohol volume consumed per day and suicide. The one existing study, from South Korea, found that for males as average alcohol volume consumed increased, the likelihood of death by suicide also increased. For females it was not possible to estimate the risk associated with the upper level of consumption due to a zero-cell count.

What this study adds

This is the first systematic investigation of the sex-specific relationship between average alcohol volume consumed per day and death by suicide using a large linked dataset from the United States. It is also the first to evaluate the modifying effect of education, an important indicator of socioeconomic status, on the respective relationship.

How this study might affect research practice or policy

The findings were not in line with the sparse existing literature, indicating that this line of research is not yet resolved and more research is needed.

Purpose in life protects against the development of suicidal thoughts and behaviors in U.S. veterans without a history of suicidality: A 10-year, nationally representative, longitudinal study

OBJECTIVES

To determine the incidence of suicidal ideation and suicide attempts (STBs) in veterans without an endorsed history of STBs and identify baseline predictors of these outcomes over a 10-year period.

METHODS

Population-based prospective cohort study of 2307 US military veterans using five waves of the 2011-2021 National Health and Resilience in Veterans Study. Baseline data were collected in 2011, with follow-up assessments conducted 2-(2013), 4-(2015), 7-(2018), and 10-years (2021) later.

RESULTS

In total, 10.1 % (N = 203) of veterans endorsed incident suicidal ideation (SI) over the 10-year period and 3.0 % (N = 55) endorsed an incident suicide attempt (SA). Multivariable regression analyses revealed the following baseline predictors of incident SI: lower annual household income, current posttraumatic stress disorder, current alcohol use disorder (AUD), disability with activities of daily living (i.e., ADLs) or instrumental activities of daily living (i.e., IADLs), lower perceived social support, lower community integration, and lower purpose in life. Current AUD, greater cumulative trauma burden, and lower purpose in life at baseline were predictive of incident SA. Relative importance analyses revealed that lower purpose in life was the strongest predictor of both incident SI and SA.

CONCLUSIONS

Psychosocial determinants of health, such as purpose in life, may be more reliable predictors of incident suicidal thoughts and behaviors than traditional risk factors (e.g., psychiatric distress; history of SA) in those without a history of STBs. Evidence-based interventions that facilitate purpose in life and feelings of connectedness and belonging should be examined as possible treatments for STBs.

Suicidality and mood disorders in psychiatric emergency patients: Results from SBQ-R

Patients with mood disorders are at high risk of suicidality, and emergency departments (ED) are essential in the management of this risk. This study aims to (1) describe the suicidal thoughts and behaviours of patients with mood disorders who come to ED; (2) assess the psychometric properties of the Suicidal Behaviours Questionnaire-Revised (SBQ-R) in a psychiatric ED; and (3) determine the best predictors of suicidality for these patients. A total of 300 participants with mood disorders recruited for the Signature Bank of the Institut universitaire en santé mentale de Montréal (IUSMM) were retained. Suicidality was assessed using the SBQ-R. Other clinical and demographic details were recorded. Bivariate analyses, correlations and multivariate regression analyses were conducted. SBQ-R's internal consistency, construct and convergent validities were also tested. In the Patient Health Questionnaire-9 (PHQ-9), 53.3% of the sample stated they had suicidal or self-harm thoughts in the last 2 weeks. The mean score obtained at the SBQ-R was 8.3. Multivariate analysis found that SBQ-R scores were associated with depressive symptoms and substance use, especially alcohol, accounting for 44.3% of the model variance. Cronbach's alpha was 0.81 [0.78, 0.84] and factor loadings for items 1-4 were 0.68, 0.88, 0.54, and 0.85, respectively. The confirmatory factor analysis indicated that the model fit the data well. The SBQ-R is a brief and valid instrument that can easily be used in busy emergency departments to assess suicide risk. Depressive symptoms and alcohol use shall also be assessed, as they are determinants of increased risk of suicidality.

C-L Case Conference: The Case of a 34-Year-Old Male Veteran with Suicidal Ideation in the Context of Alcohol Intoxication

We describe the case of a 34-year-old male veteran who presents to the emergency department with suicidal ideation while intoxicated on alcohol. From his progression from intoxication through sobriety, this case details changes in his suicide risk during the sobering process. Consultation-liaison psychiatrists present guidance for this clinical scenario based on their experiences and a review of the available literature. The following important concepts for managing suicide risk among patients with alcohol intoxication are considered: evaluating for medical risk, timing the suicide risk assessment, anticipating withdrawal, diagnosing other disorders, and achieving a safe disposition.

Analysis of veterans crisis line data: Temporal factors associated with the initiation of emergency dispatches

PURPOSE

To identify temporal patterns of emergency dispatches as initiated by Veteran Crisis Line (VCL) responders and among moderate- and high-risk contacts.

METHODS

Incidence rate ratios (IRRs) were used to examine the incidence of emergency dispatches among all 1,437,543 VCL contacts across 2019-2020.

RESULTS

Emergency dispatches were initiated in 57,077 (4.0%) contacts. IRRs were elevated during Labor Day, IRR (95% CI) = 1.33 (1.15-1.54), and Independence Day, IRR (95% CI) = 1.22 (1.05-1.43), weekends, Saturdays, IRR (95% CI) = 1.04 (1.01-1.08), Sunday (reference), and 6 pm to 11:59 pm, IRR (95% CI) = 1.06 (1.04-1.09). IRRs for moderate- and high-risk contacts were higher on Memorial Day, IRR (95% CI) = 1.16 (1.00-1.33), Sunday (reference), and 6 pm to 11:59 pm (reference).

CONCLUSIONS

The initiation of emergency dispatches fluctuates over time and were highest during Labor Day and Independence Day, weekends, and evenings. Moderate- and high-risk contact also fluctuate over time and were highest on Memorial Day, Sundays, and midnight to 5:59 am. VCL policy makers can use knowledge of temporal fluctuations to allocate public health resources for increased efficiency and greatest impact; however, additional research on temporal stability and generalizability is needed.

Factors Influencing Suicidal Ideation in Korean Youth: A Secondary Data Study Using Longitudinal Data from the Korean Youth Panel Survey

Background

Suicide is one of the most serious social problems in Korea. We examined suicidal ideation factors among Korean youth.

Methods

For risk factor identification, data from the 2008 and 2018 Korean Youth Panel Survey were analyzed (n =6,568) using univariate multiple logistic regression analysis. Negative life events, feelings of hopelessness, early-life adversity, alcohol consumption, smoking, counseling experience, perceived stress, and current health status were independent variables, whereas suicidal ideation was the dependent variable.

Results

Proximal (negative life events and feelings of hopelessness), distal (early-life adversities significantly influenced suicidal ideation), and health-related (alcohol consumption, counseling experience, perceived stress, and current health status) factors significantly influenced suicidal ideation among Korean youth.

Conclusion

Mental health professionals must include distal risk factors, along with the common proximal and health-related risk factors, to provide targeted interventions.

Leveraging Natural Language Processing to Improve Electronic Health Record Suicide Risk Prediction for Veterans Health Administration Users

Background: Suicide risk prediction models frequently rely on structured electronic health record (EHR) data, including patient demographics and health care usage variables. Unstructured EHR data, such as clinical notes, may improve predictive accuracy by allowing access to detailed information that does not exist in structured data fields. To assess comparative benefits of including unstructured data, we developed a large case-control dataset matched on a state-of-the-art structured EHR suicide risk algorithm, utilized natural language processing (NLP) to derive a clinical note predictive model, and evaluated to what extent this model provided predictive accuracy over and above existing predictive thresholds.

Methods: We developed a matched case-control sample of Veterans Health Administration (VHA) patients in 2017 and 2018. Each case (all patients that died by suicide in that interval, n = 4,584) was matched with 5 controls (patients who remained alive during treatment year) who shared the same suicide risk percentile. All sample EHR notes were selected and abstracted using NLP methods. We applied machine-learning classification algorithms to NLP output to develop predictive models. We calculated area under the curve (AUC) and suicide risk concentration to evaluate predictive accuracy overall and for high-risk patients.

Results: The best performing NLP-derived models provided 19% overall additional predictive accuracy (AUC = 0.69; 95% CI, 0.67, 0.72) and 6-fold additional risk concentration for patients at the highest risk tier (top 0.1%), relative to the structured EHR model.

Conclusions: The NLP-supplemented predictive models provided considerable benefit when compared to conventional structured EHR models. Results support future structured and unstructured EHR risk model integrations.

Association between Wine Consumption with Cardiovascular Disease and Cardiovascular Mortality: A Systematic Review and Meta-Analysis

Background: The objective of this systematic review and meta-analysis was: (i) to examine the association between wine consumption and cardiovascular mortality, cardiovascular disease (CVD), and coronary heart disease (CHD) and (ii) to analyse whether this association could be influenced by personal and study factors, including the participants' mean age, the percentage of female subjects, follow-up time and percentage of current smokers. Methods: In order to conduct this systematic review and meta-analysis, we searched several databases for longitudinal studies from their inception to March 2023. This study was previously registered with PROSPERO (CRD42021293568). Results: This systematic review included 25 studies, of which the meta-analysis included 22 studies. The pooled RR for the association of wine consumption and the risk of CHD using the DerSimonian and Laird approach was 0.76 (95% CIs: 0.69, 0.84), for the risk of CVD was 0.83 (95% CIs: 0.70, 0.98), and for the risk of cardiovascular mortality was 0.73 (95% CIs: 0.59, 0.90). Conclusions: This research revealed that wine consumption has an inverse relationship to cardiovascular mortality, CVD, and CHD. Age, the proportion of women in the samples, and follow-up time did not influence this association. Interpreting these findings with prudence was necessary because increasing wine intake might be harmful to individuals who are vulnerable to alcohol because of age, medication, or their pathologies.

A Qualitative Examination of the Impact of Suicidal Thoughts and Behavior on Help-Seeking Among University Students in Colombia and Mexico

This study examined descriptions of suicidal thoughts and behavior (STB) to identify risk and protective factors that may present in clinical settings among university students from Latin America. Our focus was on answering the following key questions: How are suicidal thoughts and behavior described? What are reasons for wanting to die and for living? What impact do STBs have on motivations to seek or avoid psychological treatment? To this end, 55 qualitative interviews were completed with university students from Colombia and Mexico who recently endorsed emotional difficulties in the World Mental Health International College Student (WMH-ICS) surveys. Interviews were coded to identify themes specific to STBs. Findings revealed insight on symptom presentations and consequences of STBs. Participants described uncontrollable somatic symptoms during periods of high suicide risk, which serves as a relevant clinical marker for health providers. An important reason for living was to avoid suffering for family, which was protective against suicide and motivates familial involvement in treatment planning. Participants sought solutions to emotional problems after experiencing STBs, including psychological treatment. Cultural stigma of mental illness induced feelings of shame and burden, which led to avolition, avoidance, and nondisclosure of symptom severity. This study provides insight into the utility of evaluating cultural context in (a) detecting antecedents to STBs frequently reported as somatic symptoms, (b) identifying protective factors against suicide, and (c) recognizing how stigma of mental illness and suicide, shame avoidance, and familism might influence personal motivations to seek or avoid help for emotional distress.

Predictors of Suicidal Ideation During Residential Substance Use Treatment

Background: Individuals with substance use disorders (SUDs) and co-occurring chronic health and/or psychiatric conditions face unique challenges in treatment and may be at a greater risk for suicidal ideation relative to persons with SUD alone.

Methods: In a sample of individuals entering residential SUD treatment in 2019 and 2020 (N = 10,242), we tested adjusted and unadjusted associations between suicidal ideation and (1) psychiatric symptoms and (2) chronic health conditions at treatment intake and during treatment using logistic and generalized logistic models.

Results: Over a third of the sample endorsed suicidal ideation at intake, though the prevalence of suicidal ideation decreased during treatment. In both adjusted and unadjusted models, individuals who reported past-month self-harm, those who reported a lifetime suicide attempt, and individuals who screened positive for co-occurring anxiety, depression, and/or posttraumatic stress disorder were at elevated risk of endorsing suicidal ideation at intake and during treatment (P values < .001). In unadjusted models, chronic pain (odds ratio [OR] = 1.51, P < .001) and hepatitis C virus (OR = 1.65, P < .001) were associated with an elevated risk for suicidal ideation at intake, and chronic pain was associated with elevated risk for suicidal ideation during treatment (OR = 1.59, P < .001).

Conclusions: Increasing accessibility to integrated treatments (ie, those that address psychiatric and chronic health conditions) for patients experiencing suicidal ideation may be beneficial in residential SUD treatment settings. Developing predictive models to identify those most at risk of suicidal ideation in real time remains a relevant direction for future work.

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

BACKGROUND

This study explores factors associated with transitioning from recent suicidal ideation (SI) to suicide attempt (SA) in depressed outpatients.

METHODS

This is a case-control study nested in two cohorts (LUEUR and GENESE) of depressed adult outpatients recruited in France and followed up for six weeks. SI, depression, anxiety, insomnia, impulsivity, and hopelessness were assessed with validated scales. Differences between patients with SI who attempted suicide during follow up and those who did not were explored using logistic regressions.

RESULTS

There was a slight majority of females in both cohorts. Mean age was 47.2 years in LUEUR and 49.4 years in GENESE. Of the 3785 participants in the LUEUR cohort, 72 (2.1 %) attempted suicide within the 6-week period vs. 19 of the 2698 participants (0.7 %) in the GENESE cohort. In LUEUR, factors associated with SA within the 6-week period were lifetime history of SA (OR = 5.35, 95 % CI = 3.30-8.66), high SI at baseline (OR = 3.87, 95 % CI = 2.4-6.24), associated treatments (OR = 3.28, 95 % CI = 2.00-5.38), and less improvement over follow-up in the following symptoms: SI (OR = 3.64, 95 % CI = 1.89-7.02), depression (OR = 3.66, 95 % CI = 1.76-7.62), and anxiety (OR = 3.26, 95 % CI = 1.46-7.27). In GENESE, associated factors were lifetime history of SAs (OR = 9.93, 95 % CI = 3.83-25.80), and less improvement in SI (OR = 9.20, 95 % CI = 3.61-23.44).

LIMITATIONS

Heterogeneity of cohorts prevented from performing a pooled analysis with a greater sample size.

CONCLUSIONS

In depressed outpatients, lack of improvement was strongly associated with a short-term SA, particularly in patients with a history of previous SAs. Fast acting treatment on SI and depression may help prevent SAs.

A controlled examination of acute warning signs for suicide attempts among hospitalized patients

BACKGROUND

Near-term risk factors for suicidal behavior, referred to as 'warning signs' (WS), distinguish periods of acute heightened risk from periods of lower risk within an individual. No prior published study has examined, using a controlled study design, a broad set of hypothesized WS for suicide attempt. This study addressed this gap through examination of hypothesized behavioral/experiential, cognitive, and affective WS among patients recently hospitalized following a suicide attempt.

METHODS

Participants were recruited during hospitalization from five medical centers across the USA including two civilian hospitals and three Veterans Health Administration facilities (n = 349). A within-person case-crossover study design was used, where each patient served as her/his own control. WS were measured by the Timeline Follow-back for Suicide Attempts Interview and were operationalized as factors that were present (v. absent) or that increased in frequency/intensity within an individual during the 6 h preceding the suicide attempt (case period) compared to the corresponding 6 h on the day before (control period).

RESULTS

Select WS were associated with near-term risk for suicide attempt including suicide-related communications, preparing personal affairs, drinking alcohol, experiencing a negative interpersonal event, and increases in key affective (e.g. emptiness) and cognitive (e.g. burdensomeness) responses.

CONCLUSIONS

The identification of WS for suicidal behavior can enhance risk recognition efforts by medical providers, patients, their families, and other stakeholders that can serve to inform acute risk management decisions.

Exposure to alcohol outlets and risk of suicidal behavior in a Swedish cohort of young adults

BACKGROUND

Greater alcohol accessibility, for example in the form of a high density of alcohol outlets or low alcohol taxation rates, may be associated with increased risk of suicidal behavior. However, most studies have been conducted at the aggregate level, and some have not accounted for potential confounders such as socioeconomic position or neighborhood quality.

METHODS

In a Swedish cohort of young adults aged 18 to 25, we used logistic regressions to evaluate whether living in a neighborhood that included bars, nightclubs, and/or government alcohol outlets was associated with risk of suicide attempt (SA) or suicide death (SD) during four separate 2-year observation periods. Neighborhoods were defined using pre-established nationwide designations. We conducted combined-sex and sex-stratified analyses, and included as covariates indicators of socioeconomic position, neighborhood deprivation, and aggregate genetic liability to suicidal behavior.

RESULTS

Risk of SA was increased in some subsamples of individuals living in a neighborhood with a bar or government alcohol outlet (odds ratios [ORs] = 1.05 to 1.15). Risk of SD was also higher among certain subsamples living in a neighborhood with a government outlet (ORs = 1.47 to 1.56), but lower for those living near a bar (ORs = 0.89 to 0.91). Significant results were driven by, but not exclusive to, the male subsample. Individuals with higher aggregate genetic risk for SA were more sensitive to the effects of a neighborhood government alcohol outlet, pooled across observation periods, in analyses of the sexes combined (relative excess risk due to interaction [RERI] = 0.05; 95% confidence intervals [CI] 0.01; 0.09) and in the male subsample (RERI = 0.06; 95% CI 0.001; 0.12).

CONCLUSIONS

Although effect sizes are small, living in a neighborhood with bars and/or government alcohol outlets may increase suicidal behavior among young adults. Individuals with higher genetic liability for SA are slightly more susceptible to these exposures.

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

BACKGROUND

Little is known about specific obsessive-compulsive clinical features associated with lifetime history of suicide attempt in individuals with obsessive-compulsive disorder (OCD) and major depression.

METHODS

The study sample included 515 adults with OCD and a history of major depression. In exploratory analyses, we compared the distributions of demographic characteristics and clinical features in those with and without a history of attempted suicide and used logistic regression to evaluate the association between specific obsessive-compulsive clinical features and lifetime suicide attempt.

RESULTS

Sixty-four (12%) of the participants reported a lifetime history of suicide attempt. Those who had attempted suicide were more likely to report having experienced violent or horrific images (52% vs. 30%; p < 0.001). The odds of lifetime suicide attempt were more than twice as great in participants with versus without violent or horrific images (O.R. = 2.46, 95%, CI = 1.45-4.19; p < 0.001), even after adjustment for other risk correlates of attempted suicide, including alcohol dependence, post-traumatic stress disorder, parental conflict, excessive physical discipline, and number of episodes of depression. The association between violent or horrific images and attempted suicide was especially strong in men, 18-29 year olds, those with post-traumatic stress disorder, and those with particular childhood adversities.

CONCLUSIONS

Violent or horrific images are strongly associated with lifetime suicide attempts in OCD-affected individuals with a history of major depression. Prospective clinical and epidemiological studies are needed to elucidate the basis of this relationship.

Ethanol and illicit drugs acute use and abuse as risk factors for suicide: A case-control study based on forensic autopsies in the Basque Country, Spain

INTRODUCTION

Abuse/dependence and acute use of ethanol and illicit drug are considered risk factors for suicide. The risk is also influenced by demographic conditions and/or psychiatric comorbidity. The aim of the study was to test the association between presence of ethanol, illicit substances and prescribed drugs in suicide decedents and controls.

MATERIALS AND METHODS

Case-control study of autopsies performed in the Biscay Forensic Pathology Service, Basque Country, Spain from 01/01/2010 to 30/06/2021 in subjects between 15 and 55 years old. Suicide deaths (n=481) with completed autopsy were evaluated. Concurrent natural deaths were chosen as controls (n=330). The risk for suicide according to demographic, toxicological and psychiatric variables was analyzed using logistic regression.

RESULTS

Ethanol was present in 21% and illicit drugs, mainly cannabis, cocaine and amphetamine, in 27% of suicide deaths. Illicit drugs were more frequent among males. In 63% of suicide cases, prescribed psychotropic drugs were detected. In a multivariate analysis, the main risk factors for suicide were psychiatric diagnosis of illicit drug abuse/dependence (OR=5.56, 95% CI 2.74-11.30) or another mental disease as mood or psychotic disorders (OR=13.05, 95% CI 8.79-19.37). Acute presence of ethanol (OR=4.22, 95% CI 2.52-7.08), recent use of cocaine (OR=2.52, 95% CI 1.05-6.07) and age <35 years (OR=2.50, 95% CI 1.62-3.87) were also associated with suicide deaths.

CONCLUSIONS

The presence of drugs of abuse in suicide deaths of people ≤55 years old is high. Recent use of ethanol and cocaine is significantly associated with an increased suicide risk. Specific prevention strategies against exposition to substances of abuse should be promoted, especially in psychiatric patients.

Evaluating the Impact of Alcohol Policy on Suicide Mortality: A Sex-Specific Time-Series Analysis for Lithuania

OBJECTIVE

It is reasonable to believe that the alcohol policy environment can impact the suicide mortality rates in a given country, considering the well-known link between alcohol use and death by suicide. The current literature, albeit limited, suggests that an increase in alcohol taxation may result in a decrease in deaths by suicide and that the effect is sex-specific. Therefore, the objective of the current study was to test the impact of three alcohol control policy enactments (in 2008, 2017 and 2018) on suicide mortality among adults 25-74 years of age in Lithuania, by sex.

METHODS

To estimate the unique impact of three alcohol control policies, we conducted interrupted time-series analyses by employing a generalized additive mixed model on monthly sex-specific age-standardized suicide mortality rates from January 2001 to December 2018.

RESULTS

Analyses showed a significant impact of the 2017 (p = 0.016) alcohol control policy on suicide mortality for men only. Specifically, we estimated that in the year following the 2017 policy enactment, approximately 57 (95% CI: 9-107) deaths by suicide were prevented among men, 25-74 years of age. The three policy enactments tested were not found to significantly impact the suicide mortality rate among women.

CONCLUSION

Alcohol control policies involving pricing, which result in a notable decrease in alcohol affordability, could be a cost-effective indirect suicide prevention mechanism in not only countries of the former Soviet Union, but in other high-income countries with a comparable health care system to that in Lithuania. HIGHLIGHTSIncreasing excise tax on alcohol was found to have a sex-specific impact on suicide mortalityThe 2017 alcohol policy prevented 57 deaths by suicide among men, 25-74 years of age, in the following yearAlcohol pricing policies may be a cost-effective indirect suicide prevention mechanism.

Untangling the temporal association between daily urges to die by suicide and to use substances

The current study examined the potential bi-directional associations between urges to die by suicide and to use alcohol or drugs as well as sadness and anger in relation to these urges. Forty individuals with suicidal thoughts, binge drinking behaviors, and emotion regulation difficulties, who were recruited for a clinical trial of internet-delivered Dialectical Behavior Therapy skills training, completed daily diaries on suicide and substance use urges and emotions over twenty-one days. Results indicated that higher daily peak substance use urges were associated with a greater likelihood of reporting suicide urges on the next day. Participants with higher and an increase in peak substance use urges (relative to their daily average) were both more likely to report suicide urges on the same day. Furthermore, both daily peak sadness and anger ratings predicted next-day suicide urges while accounting for substance use urges, though sadness may be a stronger predictor. These findings suggested a possible unidirectional pathway from urges to use substances to subsequent urges to die by suicide and a unique role of sadness.

Characteristics and circumstances of cocaine-related completed suicide in Australia, 2000-2021

BACKGROUND

There has been a substantial global increase in cocaine use and associated harms. The current study aimed to: 1. Determine the case characteristics and circumstances of death of cocaine-related suicide in Australia 2000-2021; and 2. Determine the toxicological profiles of cases.

METHODS

Retrospective study of cocaine-related death in Australia, 2000-2021, retrieved from the National Coronial Information System (NCIS). Suicide intent was based upon the NCIS code for "Intentional Self-harm", derived from case circumstances and coroners' conclusions. Sex comparisons were made for all major variables.

RESULTS

A total of 157 cases were identified, 82.2% male, 79.5% employed, with a mean age of 32.3 years. Concerns for mental health were documented in 65.6%, a previous suicide attempt in 21.0%, a history of substance use treatment and/or negative consequences of substance use in 45.9% and injecting drug use in 14.6%. Manner of death amongst both sexes was predominantly by physical means (82.8%). Written intent was documented in 29.3%. Intense agitation prior to the incident was noted in 28.0% and conflict in 24.8%. The median blood cocaine concentration was 0.060 mg/L (range 0.007-5.500). Other drugs were present in 95.5%, most commonly alcohol (63.1%) with a median concentration of 0.140 g/100 ml. Psychostimulants other than cocaine were present in 31.2%.

CONCLUSIONS

The 'typical' cocaine-related suicide case was a male, aged in their early thirties, who was highly likely to be employed. The majority of cases used physical means, and a substantial minority were highly agitated and engaged in conflict prior to the fatal incident.

Deliberate Self-Poisoning: Real-Time Characterization of Suicidal Habits and Toxidromes in the Food and Drug Administration Adverse Event Reporting System

INTRODUCTION

Deliberate self-poisoning (DSP) using drugs is the preferred method of suicide at a global level. Its investigation is hampered by limited sample sizes and data reliability. We investigate the role of the US FDA Adverse Event Reporting System (FAERS), a consolidated pharmacovigilance database, in outlining DSP habits and toxidromes.

METHODS

We retrieved cases of 'intentional overdose' and 'poisoning deliberate' from the FAERS (January 2004-December 2021). Using descriptive and disproportionality analyses, we estimated temporal trends, potential risk factors, toxidromes, case-fatality rates and lethal doses (LDs) for the most frequently reported drugs.

RESULTS

We retrieved 42,103 DSP cases (17% fatal). Most cases were submitted in winter. Reports of DSP involved younger people, psychiatric conditions, and alcohol use, compared with non-DSP, and fatality was higher in men and older patients. Suspected drugs were mainly antidepressants, analgesics, and antipsychotics. Multiple drug intake was recorded in more than 50% of the reports, especially analgesics, psychotropics, and cardiovascular agents. The most frequently reported drugs were paracetamol, promethazine, amlodipine, quetiapine, and metformin. We estimated LD25 for paracetamol (150 g).

CONCLUSION

Worldwide coverage of the FAERS complements existing knowledge about DSP and may drive tailored prevention measures to timely address the DSP phenomenon and prevent intentional suicides.

Suicide Risk, Alcohol Consumption and Attitudes towards Psychological Help-Seeking among Lithuanian General Population Men, Conscripts and Regular Active Duty Soldiers

The aim of this study was to investigate the relationship between suicide risk, alcohol consumption, and attitudes towards professional psychological help among Lithuanian general population men, conscripts, and regular active duty (AD) soldiers. In total, 1195 Lithuanian adult males participated in the study: 445 men from the general population, 490 conscripts, and 260 regular AD soldiers from the Lithuanian Armed Forces. The study's measures included: general suicide risk, alcohol consumption levels, frequency of using alcohol as a means to suppress difficult thoughts and feelings, and attitudes toward psychological help. Both military samples showed significantly lower suicide risk than men from the general population. Alcohol use as a means to suppress difficult thoughts and feelings was the most significant predictor of suicide risk and a significant mediator between alcohol consumption and suicide risk in all study groups. Another significant suicide risk predictor and mediator between alcohol consumption and suicide risk-i.e., the value of seeking psychological treatment-was found only in the conscript sample. Results of the current study suggest that there is an opportunity for intervention aimed at the attitudes toward seeking professional psychological help for conscripts. However, that might not be the case for regular AD soldiers, nor the general population of Lithuanian men.

Investigating the effects of suicide exposure among a clinical sample of active duty service members

Suicide exposure warrants further investigation as a risk factor for suicide among military service members. This study aimed to examine associations among suicide exposure, suicidal ideation (SI), and psychological symptoms in a clinical sample of service members (N = 1,565, 64.4% suicide-exposed) and identify how one's relationship with the deceased impacts suicidality and psychological health in exposed individuals. A secondary analysis of cross-sectional survey data was conducted. Generalized linear regression analyses were used to identify associations between suicide exposure and both current SI and psychological symptoms among all participants; the associations between suicide exposure characteristics and psychological symptoms were only examined among exposed individuals. Exposure was not significantly associated with higher SI, β = .007, SE = .16, p = .965, but was associated with PTSD, β = 1.60, SE = 0.49, p = .001; anxiety, β = .68, SE = .31, p = .031; and insomnia symptoms, β = .98, SE = .25, p < .001. Among participants who had been exposed, high/long impact of exposure was positively associated with SI, β = 0.94, SE = .26, p < .001, and psychological symptoms, PTSD: β = 2.32, SE = .77, p = .002; anxiety: β = 1.39, SE = .50, p = .005; insomnia: β = .96, SE = .39, p = .015. Results illustrate the significant issue of suicide exposure within the military and show consideration of suicide exposure as a potential risk factor for adverse psychological outcomes is warranted.

Acute use of alcohol before suicide in Kazakhstan: A population-wide study

BACKGROUND

Acute use of alcohol is a proximal risk factor for suicidal behavior and suicide attempts. Previous studies have established that alcohol consumption prior to suicide increases the risk of suicide completion. Thus, the current study aims to explore the association between alcohol use and suicide mortality in Kazakhstan. This is the first study to address this association in Kazakhstan.

METHODS

The main outcome measure was the presence of alcohol in blood of suicide decedents. Logistic regression models were used to test unadjusted and adjusted odds ratios of the risk of suicide involving acute use of alcohol. Regression modeling was used to identify significant predictors of alcohol use among suicide decedents.

RESULTS

Males (22.5 %) used alcohol more commonly before conducting suicide than females (13.4 %). The odds of alcohol involvement was 2.73 times higher for males compared to females after controlling for age and other covariates. Being a male younger than 45 years old and using suicide methods such as poisoning, immolation, and drowning increased the odds of acute use of alcohol among suicide decedents.

LIMITATIONS

Data on alcohol use included information only on individuals with a positive alcohol test, and it is unknown how many suicide decedents were not tested for alcohol.

CONCLUSIONS

Alcohol use is common factor contributing to suicide, particularly among young and middle-aged male adults. Alcohol use is also associated more strongly with certain methods of suicide. Further studies and more detailed data exploring alcohol consumption and suicide risks are needed in countries such as Kazakhstan.

Suicide Ideation, Distress, and Peer Perceptions as Predictors of Substance Use

BACKGROUND

Substance use and suicide ideation are common behaviors that often overlap among college students. However, clues about their temporal relationship, as well as moderating factors (e.g., distress, peer perceptions of substance use), are understudied. Indeed, those with a history of suicide ideation may use avoidance coping (including substance use) to manage distress, underscoring the possibility of substance use as a response to suicide ideation, an oft-stressful experience in and of itself. Further, as a low sense of belongingness confers risk for suicide ideation, distress may increase compliance with perceived cultural norms, thus increasing substance use behavior. This study examined the effect of the suicide ideation-distress-peer perception interaction on substance use.

METHOD

Participants were 3,608 undergraduate students across eleven college campuses. Measures of past month substance use frequency, general distress, peer perceptions of substance use, and past year suicide ideation were utilized.

RESULTS

Suicidal ideation was associated with e-cigarette, marijuana, and illicit drug use. There were main effects of suicide ideation (on e-cigarette and marijuana use) and peer perceptions of substance use (on tobacco, alcohol, e-cigarette, and marijuana use), but not distress, on past 30-day substance use. Further, the three-way interaction of suicide ideation, distress, and peer perceptions of substance use predicted frequency of past month tobacco and illicit drug use.

CONCLUSIONS

Suicide ideation may be temporally linked to use of specific substances. Peer perception and distress may strengthen the suicide ideation-substance use relationship. These factors should be carefully considered when treating individuals with substance use.

Alcohol use and the gender-specific risk of suicidal behavior: a systematic review and meta-analysis protocol

BACKGROUND

Alcohol use is an important risk factor for suicidal behavior, with a heightened risk found among women. The objective of this study is to determine the gender-specific risk of suicidal behaviors (suicide attempt and death by suicide) for different levels and dimensions of alcohol use-i.e., for (1) average alcohol volume consumed, (2) binge drinking, and (3) individuals with an alcohol use disorder.

METHODS

We will systematically search the available literature for primary studies on the risk relationships specified above. Using a predetermined set of keywords, a comprehensive systematic literature search will be conducted in the following electronic databases: Embase, PsycINFO, PubMed, and Web of Science. The basic inclusion criteria will be (1) an original, quantitative (cohort, case-control or cross-sectional) study; with (2) a measure of risk of at least one dimension of our alcohol exposures in relation to at least one of our outcomes of interest (suicide attempt or death by suicide), and its corresponding measure of variability is reported (or sufficient data to calculate these); and (3) estimates of risk stratified by gender. Studies (1) that use only qualitative labels of alcohol use, and (2) where suicide attempt and non-suicidal self-harm cannot be disaggregated will be excluded. There will be no restrictions on language, geographical region, or year of publication. Two reviewers will independently perform the search and systematic assessment of each identified study and subsequent extraction of data. Categorical random-effects meta-analyses will be conducted to obtain gender-specific pooled risk estimates. Risk of bias will be assessed using the Risk of Bias In Non-randomised Studies-of Interventions tool and the Grading of Recommendations Assessment, Development and Evaluation approach will be used to rate the quality of evidence.

DISCUSSION

This study will synthesize all available data on the gender-specific relationship between various dimensions of alcohol use and suicidal behavior simultaneously in a coherent framework. We will provide risk estimates with the detail needed to better understand the respective risk relationships and appreciate the burden of alcohol-attributable suicide.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO CRD42022320918.

Thoughts of suicide or self-harm among Australian healthcare workers during the COVID-19 pandemic

OBJECTIVE

To identify the prevalence and predictors of (a) thoughts of suicide or self-harm among healthcare workers during the COVID-19 pandemic and (b) help-seeking among those healthcare workers with thoughts of suicide or self-harm.

METHOD

Analysis of data from the Australian COVID-19 Frontline Healthcare Workers Study, an online survey of healthcare workers conducted during the second wave of the COVID-19 pandemic in Australia. Outcomes of interest were thoughts of suicide or self-harm as measured through the Patient Health Questionnaire for depression and help-seeking behaviours.

RESULTS

Overall, 819 (10.5%) of 7795 healthcare workers reported thoughts of suicide or self-harm over a 2-week period. Healthcare workers with these thoughts experienced higher rates of depression, anxiety, post-traumatic stress disorder and burnout than their peers. In multivariable models, the odds of suicide or self-harm thoughts were higher among workers who had friends or family infected with COVID-19 (odds ratio = 1.24, 95% confidence interval = [1.06, 1.47]), were living alone (odds ratio = 1.32, 95% confidence interval = [1.06, 1.64]), younger (⩽30 years cf. >50 years; odds ratio = 1.70, 95% confidence interval = 1.36-2.13), male (odds ratio = 1.81, 95% confidence interval = [1.49, 2.20]), had increased alcohol use (odds ratio = 1.58, 95% confidence interval = [1.35, 1.86]), poor physical health (odds ratio = 1.62, 95% confidence interval = [1.36, 1.92]), increased income worries (odds ratio = 1.81, 95% confidence interval = [1.54, 2.12]) or prior mental illness (odds ratio = 3.27, 95% confidence interval = [2.80, 3.82]). Having dependent children was protective (odds ratio = 0.75, 95% confidence interval = [0.61, 0.92]). Fewer than half (388/819) of the healthcare workers who reported thoughts of suicide or self-harm sought professional support. Healthcare workers with thoughts of suicide or self-harm were more likely to seek support if they were younger (⩽30 years cf. >50 years; odds ratio = 1.78, 95% confidence interval = [1.13, 2.82]) or had prior mental health concerns (odds ratio = 4.47, 95% confidence interval = [3.25, 6.14]).

CONCLUSION

One in 10 Australian healthcare workers reported thoughts of suicide or self-harm during the pandemic, with certain groups being more vulnerable. Most healthcare workers with thoughts of suicide or self-harm did not seek professional help. Strong and sustained action to protect the safety of healthcare workers, and provide meaningful support, is urgently needed.

Examining the role of brooding, distress, and negative urgency in dysregulated behaviors: A cross-sectional study in treatment-seeking young people

OBJECTIVE

Dysregulated behaviors including substance use, disordered eating, and nonsuicidal self-injury (NSSI) have significant negative implications for individuals and health systems. It is therefore paramount to understand factors influencing behavioral dysregulation, to inform prevention and treatment approaches. The literature suggests that distress and rumination (brooding) prompt individuals to engage in behavioral dysregulation for distraction (Emotional Cascade Model), although these concepts have limited investigation in clinical, treatment-seeking samples, particularly alongside negative urgency. This cross-sectional study sought to examine the relationships of brooding, distress, and negative urgency with behavioral dysregulation, as well as the moderating effect of negative urgency between brooding and behavioral dysregulation, in treatment-seeking young people.

METHOD

A total of 385 treatment-seeking young people completed cross-sectional, self-report measures of distress, rumination, negative urgency, and engagement in dysregulated behaviors (NSSI, alcohol use, drug use, binge eating, and purging) over the past 1-3 months.

RESULTS

Structural equation modeling revealed that only negative urgency, and not brooding or distress, had a significant positive relationship with behavioral dysregulation. Negative urgency did not significantly moderate the relationship between brooding and behavioral dysregulation.

CONCLUSIONS

These findings reinforce the importance of considering negative urgency in the conceptualization, prevention, and treatment of behavioral dysregulation, and contribute to the knowledge of the relationship between brooding and various dysregulated behaviors within a treatment-seeking sample.

Qualitative analysis of hospital patient narratives of warning signs on the day of their suicide attempt

OBJECTIVE

Research on warning signs, defined as acute risk factors for suicide or suicide attempt, has been slow due to the difficulty of examining the hours and minutes preceding suicidal behavior. This study sought to identify new warning signs and to re-examine warning signs that have been proposed.

METHOD

Narrative stories of adult patients with substance use problems hospitalized following a suicide attempt were transcribed. The narrative segments describing the 24-h period prior to suicide attempt were examined with directed qualitative content analysis using codes based on prior literature and new codes developed inductively.

RESULTS

The sample (N = 35) was mean age = 40, 51% female, and 49% White non-Hispanic. Analysis of the transcripts of the 24-h periods (M word count = 637) yielded a broad range of cognitive (e.g., cognitive disturbance such as rumination), behavioral (e.g., alcohol use), emotional (e.g., dramatic mood changes), and social (e.g., social withdrawal) warning signs, along with a small number of cognitions and behaviors that appeared to mark a dangerous shift to acute preparation and intent for attempt, for example 'self-persuasion to attempt suicide.'

CONCLUSION

We posit that a broad range of cognitive, behavioral, emotional, and social warning signs increase acute risk for suicidal behavior by creating the conditions for a shift to acute preparation and intent, a highly potent category of warning signs.