Non-pharmacological interventions for preventing suicide attempts: A systematic review and network meta-analysis

Suicide attempts can cause serious physical harm or death. It would be crucial to gain a better understanding of the comparative efficacy of non-pharmacological interventions. We aimed to identify which non-pharmacological interventions are more effective in preventing suicide attempts. PubMed, Web of Science, and EMBASE databases were searched systematically from their inception until 3 April 2023. To be eligible for inclusion, randomized controlled trials (RCTs) had to meet the following criteria: Participants were individuals who had suicidal ideation or a history of severe self-harm or attempted suicide. A network meta-analysis was performed using a random effects model to estimate the treatment effect of various non-pharmacological interventions. (PROSPERO registration number: CRD42023411393). We obtained data from 54 studies involving 17,630 participants. Our primary analysis found that Cognitive therapy (CT) (OR=0.19, 95%CI =0.04-0.81), Dialectical Behavior Therapy (DBT) (OR=0.37, 95%CI =0.13-0.97), Cognitive-behavioral therapy (CBT) (OR=0.42, 95%CI =0.17-0.99), and Brief intervention and contact (BIC) (OR=0.65, 95%CI=0.44-0.94) were superior to TAU (within the longest available follow-up time) in preventing suicide attempts, while other intervention methods do not show significant advantages over TAU. Secondary analysis showed that the two intervention measures (CT and BIC) were effective when follow-up time did not exceed 6 months, but there was no effective intervention measure with longer follow-up times. CT, DBT, CBT, and BIC have a better effect in preventing suicide attempts than other non-pharmacological interventions. Additional research is necessary to validate which interventions, as well as which combinations of interventions, are the most effective.

The Suicide Prevention and Intervention Study (SURVIVE): Study protocol for a multisite cohort study with nested randomized-controlled trials

INTRODUCTION

Suicide is one of the leading causes of avoidable death. Gathering national data on suicidal behaviour incidence is crucial to develop evidence-based public policies. The study has two primary objectives: (1) to determine the incidence of suicide attempts in Spain and related risk factors, and (2) to analyze the efficacy of secondary prevention programmes to prevent suicide re-attempting in comparison to treatment as usual (TAU).

MATERIALS AND METHODS

Multisite, coordinated, cohort study with three nested randomized controlled trials. A cohort of 2000 individuals (age >=12) with suicidal behaviour will be recruited at ten sites distributed across Spain. Assessments will be conducted within 10 days of the suicide attempt (V0-baseline visit) and after 12 months (V4-last visit) and will include clinician reported and participant reported outcomes (PROs). Between V0 and V4, PROs will be collected remotely every three months (V1, V2 and V3). Optatively, cohort participants will participate in three nested randomized-controlled-trials (RCTs) evaluating different secondary prevention interventions: Participants aged 18 years and older will be randomly allocated to: Telephone-based Management+TAU vs. TAU or iFightDepression-Survive+TAU vs. TAU. Participants aged between 12 and 18 years will be allocated to a specific intervention for youths: Self Awareness of Mental Health+TAU vs. TAU.

RESULTS

This study will provide interesting data to estimate suicide attempt incidence in Spain. and will provide evidence on three.

CONCLUSIONS

Evidence on three potentially efficacious interventions for individuals at high risk of suicide will be obtained, and this could improve the treatment given to these individuals.

TRIAL REGISTRATION

NCT04343703.

Early psychiatric referral after attempted suicide helps prevent suicide reattempts: A longitudinal national cohort study in South Korea

INTRODUCTION

Although people who attempted suicide tend to repeat suicide attempts, there is a lack of evidence on the association between psychiatric service factors and suicide reattempt among them.

METHODS

We used a nationwide, population-based medical record database of South Korea to investigate the use of psychiatric services before and after the index suicide attempt and the association between psychiatric service factors after the index suicide attempt with the risk of suicide reattempt.

RESULTS

Among 5,874 people who had attempted suicide, the all-cause mortality within 3 months after the suicide attempt was 11.6%. Among all subjects who attempted suicide, 30.6% of them had used psychiatric services within 6 months before the suicide attempt; 43.7% of them had used psychiatric services within 3 months after the suicide attempt. Among individuals who had visited clinics following attempted suicide, the cumulative incidence of suicide reattempt over a mean follow-up period of 5.1 years was 3.4%. About half of suicide reattempts occurred within 1 year after the index suicide attempt. Referral to psychiatric services within 7 days was associated with a decreased risk of suicide reattempt (adjusted hazard ratio, 0.51; 95% confidence intervals, 0.29-0.89).

CONCLUSION

An early psychiatric referral within 1 week after a suicide attempt was associated with a decreased risk of suicide reattempt.

Psychosocial interventions for self-harm in adults

BACKGROUND

Self-harm (SH; intentional self-poisoning or self-injury regardless of degree of suicidal intent or other types of motivation) is a growing problem in most counties, often repeated, and associated with suicide. There has been a substantial increase in both the number of trials and therapeutic approaches of psychosocial interventions for SH in adults. This review therefore updates a previous Cochrane Review (last published in 2016) on the role of psychosocial interventions in the treatment of SH in adults.

OBJECTIVES

To assess the effects of psychosocial interventions for self-harm (SH) compared to comparison types of care (e.g. treatment-as-usual, routine psychiatric care, enhanced usual care, active comparator) for adults (aged 18 years or older) who engage in SH.

SEARCH METHODS

We searched the Cochrane Common Mental Disorders Specialised Register, the Cochrane Library (Central Register of Controlled Trials [CENTRAL] and Cochrane Database of Systematic reviews [CDSR]), together with MEDLINE, Ovid Embase, and PsycINFO (to 4 July 2020).

SELECTION CRITERIA

We included all randomised controlled trials (RCTs) comparing interventions of specific psychosocial treatments versus treatment-as-usual (TAU), routine psychiatric care, enhanced usual care (EUC), active comparator, or a combination of these, in the treatment of adults with a recent (within six months of trial entry) episode of SH resulting in presentation to hospital or clinical services. The primary outcome was the occurrence of a repeated episode of SH over a maximum follow-up period of two years. Secondary outcomes included treatment adherence, depression, hopelessness, general functioning, social functioning, suicidal ideation, and suicide.

DATA COLLECTION AND ANALYSIS

We independently selected trials, extracted data, and appraised trial quality. For binary outcomes, we calculated odds ratio (ORs) and their 95% confidence intervals (CIs). For continuous outcomes, we calculated mean differences (MDs) or standardised mean differences (SMDs) and 95% CIs. The overall quality of evidence for the primary outcome (i.e. repetition of SH at post-intervention) was appraised for each intervention using the GRADE approach.

MAIN RESULTS

We included data from 76 trials with a total of 21,414 participants. Participants in these trials were predominately female (61.9%) with a mean age of 31.8 years (standard deviation [SD] 11.7 years). On the basis of data from four trials, individual cognitive behavioural therapy (CBT)-based psychotherapy may reduce repetition of SH as compared to TAU or another comparator by the end of the intervention (OR 0.35, 95% CI 0.12 to 1.02; N = 238; k = 4; GRADE: low certainty evidence), although there was imprecision in the effect estimate. At longer follow-up time points (e.g., 6- and 12-months) there was some evidence that individual CBT-based psychotherapy may reduce SH repetition. Whilst there may be a slightly lower rate of SH repetition for dialectical behaviour therapy (DBT) (66.0%) as compared to TAU or alternative psychotherapy (68.2%), the evidence remains uncertain as to whether DBT reduces absolute repetition of SH by the post-intervention assessment. On the basis of data from a single trial, mentalisation-based therapy (MBT) reduces repetition of SH and frequency of SH by the post-intervention assessment (OR 0.35, 95% CI 0.17 to 0.73; N = 134; k = 1; GRADE: high-certainty evidence). A group-based emotion-regulation psychotherapy may also reduce repetition of SH by the post-intervention assessment based on evidence from two trials by the same author group (OR 0.34, 95% CI 0.13 to 0.88; N = 83; k = 2; moderate-certainty evidence). There is probably little to no effect for different variants of DBT on absolute repetition of SH, including DBT group-based skills training, DBT individual skills training, or an experimental form of DBT in which participants were given significantly longer cognitive exposure to stressful events. The evidence remains uncertain as to whether provision of information and support, based on the Suicide Trends in At-Risk Territories (START) and the SUicide-PREvention Multisite Intervention Study on Suicidal behaviors (SUPRE-MISS) models, have any effect on repetition of SH by the post-intervention assessment. There was no evidence of a difference for psychodynamic psychotherapy, case management, general practitioner (GP) management, remote contact interventions, and other multimodal interventions, or a variety of brief emergency department-based interventions.

AUTHORS' CONCLUSIONS

Overall, there were significant methodological limitations across the trials included in this review. Given the moderate or very low quality of the available evidence, there is only uncertain evidence regarding a number of psychosocial interventions for adults who engage in SH. Psychosocial therapy based on CBT approaches may result in fewer individuals repeating SH at longer follow-up time points, although no such effect was found at the post-intervention assessment and the quality of evidence, according to the GRADE criteria, was low. Given findings in single trials, or trials by the same author group, both MBT and group-based emotion regulation therapy should be further developed and evaluated in adults. DBT may also lead to a reduction in frequency of SH. Other interventions were mostly evaluated in single trials of moderate to very low quality such that the evidence relating to the use of these interventions is inconclusive at present.

Aftercare and Suicide Reattempt Prevention in Tehran, Iran

Background: A previous suicide attempt is one of the strongest risk factors for subsequent suicide. Effective care following a suicide attempt may reduce the risk of suicide reattempts. Aims: We aimed to investigate the effect of a brief educational intervention and contact program on suicide reattempts. Method: This study was performed as a randomized clinical trial (RCT) recruiting 305 individuals who had attempted suicide (brief intervention and contact = 153 individuals, BIC; treatment as usual = 152 individuals, TAU) who were referred to Baharlu Hospital in Tehran. The SUPRE-MISS questionnaire and a discharge follow-up questionnaire were used for data collection. Cox proportional hazard models and log-rank tests were used to assess the association of the variable with the event (reattempt). Kaplan-Meier curves were used to depict the time to the event of reattempt. Results: In the BIC group, 11% of the individuals had attempted suicide once, and 25% of the TAU group had attempted suicide once (12.4%), twice (9.3%), and three times (3.8%), respectively. The results of Kaplan-Meier analysis indicated the mean time of reattempt in the BIC (0.76) and TAU groups (0.25) as the fourth and second months of follow-up, respectively (log rank, χ² = 12.48, p < .001). The hazard ratio for the TAU group was 2.57 (95% CI [1.4, 5.9]). Limitations: Loss to follow-up due to stigma is one of the serious problems of follow-up services. Conclusion: Implementing a brief educational intervention and contact program on suicide reattempts is feasible and effective in reducing the rate of reattempt; however, it should be accommodated within the mental health services of the county.

The Catalonia Suicide Risk Code: A secondary prevention program for individuals at risk of suicide

BACKGROUND

Suicide prevention is an emerging priority for public health systems. Here, we present the Catalonia Suicide Risk Code (CSRC), a secondary suicide prevention program that provides a systematic approach to follow-up care for patients at risk. We describe the care pathway of the CSRC and characteristics of the patients enrolled in the program.

METHODS

Observational study based on data extracted from the Catalan health care system between the years 2014 and 2019. The following patient-related data were obtained: sociodemographic and clinical characteristics, characteristics of suicidal behaviour, and pathway of care.

RESULTS

A total of 12,596 individuals (64.1% women) were screened for suicide risk and 8,403 (66.7%) were subsequently enrolled in the CSRC. Adherence data show that most patients (81.9%) attended a face-to-face appointment and most (67.1%) were successfully contacted by telephone afterwards. Most face-to-face appointments were performed within 10 days of enrolment for adults and 72 h for minors. Psychiatric disorders were significant risk factors for both men and women. Females were significantly more likely to report stressful life events, while males were more likely to report social problems. Compared to men, women were more likely to use poisoning.

LIMITATIONS

Adherence to the CSRC care pathway might reflect obstacles to its implementation. Due to the observational study design, it is not possible to determine the effectiveness of the CSRC to reduce suicide re-attempts.

CONCLUSIONS

Although the CSRC successfully provided follow-up care for many individuals at high risk of suicide, greater adherence to the CSRC care pathway is needed.

The Association Between Child Abuse and Attempted Suicide

Abstract.Background: Child abuse and suicide among the young population is a serious and prevalent problem. Many studies have demonstrated that people with adverse childhood experiences, such as child abuse, are likely to develop suicidal behavior. This study evaluates the connection between child abuse and suicidal behavior in the Hong Kong community where incidents of child abuse have been on the rise over the past decade. Aims: To determine the association between child abuse and attempted suicide in the child population of Hong Kong using hospital electronic medical records system. Method: From January 1, 1995 to July 31, 2016, patients with admission age < 18 years with the diagnosis of child abuse or influenza infection (comparison group) were included in this study (n = 54,256). In secondary data analysis, an association was found between children who had experienced child abuse and the outcome measure of hospital admission for attempted suicide compared with influenza infection. Results: The adjusted hazard ratio of attempting suicide in children who experienced sexual abuse and physical abuse compared with the influenza-infected group was 6.48 (95% CI [4.56, 9.19]) and 4.83 (95% CI [3.67, 6.34]). The age at onset of adverse incidents was negatively associated with the attempted suicide timing. Female patients had a 1.64 higher risk of repeating attempted suicide. In addition, nearly 5% of children who had experienced child abuse attempted suicide in the 10 years after their admission, and more than 36% of patients had a record of repeated suicide attempt in the 20 years after the initial admission. Limitations: The accuracy of the diagnosis, selection bias, insufficiency of study period, Berkson's bias, incomplete socioeconomic status, as well as the absence of psychiatric diagnosis are the limitations. Conclusion: Our results indicate that there is a significant association between child abuse and suicide attempts in Hong Kong. If confirmed, the study (a) demonstrates that hospital admission records are a critical source for identifying children with a high risk for suicidal behavior; (b) may inform policy makers that additional and long-term intervention programs should be provided to children so as to reduce subsequent suicide attempts.

Effect of a Crisis Intervention Team for suicide attempt patients in an emergency department in Korea

Background:

South Korea has one of the highest rates of suicide in the world, which poses an immense socioeconomic burden on the healthcare system.

Objectives:

We hypothesized that the implementation of a Crisis Intervention Team would lead to an improvement in completion rates of suicide prevention counseling programs.

Methods:

This is a retrospective before-and-after analysis, and was carried out in the emergency department in the city of Ansan, South Korea. The Crisis Intervention Team, funded by the Ministry of Health and Welfare, counsels suicide attempt patients with the ultimate goal of assuring proper administration of mental healthcare from community suicide support programs. Data on suicide attempt patients were collected using medical records. The primary outcome was defined as completion of the 8-week follow-up period for suicide attempt patients with the community suicide support programs.

Results:

A total of 246 patients from the pre-intervention period and 296 patients from the post-intervention period were included in the study. The completion rates of the 8-week follow-up period increased significantly after the intervention. During the pre-intervention period, 9 patients (3.7%) who were referred to the community suicide support program completed the 8 weeks of follow-up, whereas in the post-intervention period, 56 patients (18.9%) followed up for 8 weeks or more (p < 0.0001). The secondary outcome, overall linkage rates to community suicide support program, did not change significantly, with a minor increase from 46 (18.7%) to 63 (21.3%) (p = 0.45).

Conclusion:

The implementation of an in-hospital Crisis Intervention Team dedicated to active and assertive counseling that begins in the emergency department was correlated with significantly increased completion rates of the 8-week follow-up counseling program.

Facilitating Factors and Barriers to the Use of Emerging Technologies for Suicide Prevention in Europe: Multicountry Exploratory Study

BACKGROUND

This study provides an analysis on the use of emerging technologies for the prevention of suicide in 8 different European countries.

OBJECTIVE

The objective of this study was to analyze the potentiality of using emerging technologies in the area of suicide prevention based on the opinion of different professionals involved in suicide prevention.

METHODS

Opinions of 3 groups of stakeholders (ie, relevant professionals in suicide field) were gathered using a specifically designed questionnaire to explore dimensions underlying perceptions of facilitating factors and barriers in relation to the use of emerging technologies for suicide prevention.

RESULTS

Goal 1 involved facilitating factors for the use of emerging technologies in suicide prevention. Northern European countries, except for Belgium, attach greater relevance to those that optimize implementation and benefits. On the other hand, Southern European countries attach greater importance to professionally oriented and user-centered facilitating factors. According to different stakeholders, the analysis of these facilitating factors suggest that professionals in the field of social work attach greater relevance to those that optimize implementation and benefits. However, professionals involved in the area of mental health, policy makers, and political decision makers give greater importance to professionally oriented and user-centered facilitating factors. Goal 2 was related to barriers to the usability of emerging technologies for suicide prevention. Both countries and stakeholders attach greater importance to barriers associated with resource constraints than to those centered on personal limitations. There are no differences between countries or between stakeholders. Nevertheless, there is a certain stakeholders-countries interaction that indicates that the opinions on resource constraints expressed by different stakeholders do not follow a uniform pattern in different countries, but they differ depending on the country.

CONCLUSIONS

Although all countries and stakeholders agree in identifying resource constraints as the main barrier to the use of emerging technologies, factors facilitating their use in suicide prevention differ among countries and among stakeholders.