Saving Lives: A Systematic Review on the Efficacy of Theory-Informed Suicide Prevention Programs

Addressing help-seeking, stigma and risk factors for suicidality in secondary schools: short-term and mid-term effects of the HEYLiFE suicide prevention program in a randomized controlled trial

BACKGROUND

Suicidal ideation and suicide attempts present a serious public health concern among adolescents and young adults. School-based suicide prevention programs are a key tool for addressing this problem. However, more research is necessary to assess their effectiveness, acceptability, and safety. In response, the HEYLiFE suicide prevention program was developed to enhance help-seeking, reduce stigma towards suicidal peers and diminish risk factors for suicidality. This article presents the evaluation findings of the HEYLiFE program in German secondary schools.

METHODS

We conducted a randomized-controlled trial measuring short-term pre-post within-group effects in the intervention group only and mid-term effects at 6-months-follow-up compared to a waitlist-control group. Schools were assigned randomly to the intervention or control group (no blinding). We recruited students ≥12 years of age. Primary outcomes were knowledge about suicidality, attitudes towards suicidality, stigma towards a suicidal peer, help-seeking intentions and behaviours, risk factors for suicidality. The data was analysed with linear mixed models and generalized linear mixed models.

RESULTS

A total of N = 745 students participated (n = 353 intervention group, n = 392 control group). We observed favourable short-term effects on knowledge, attitudes towards suicidality and fear towards a suicidal peer. Unexpectedly, the program also led to an increase in desire for social distance and a decrease in prosocial emotions towards a suicidal peer. The mid-term effects of the program were exclusively favourable, resulting in enhanced attitudes towards help-seeking while protecting from a sharper rise in risk-factors for suicidality and from an increase in social distance. The program had more favourable effects on females and on students aged >13 years. The program was well-received by the students, and no serious adverse events were reported.

CONCLUSIONS

These findings demonstrate the effectiveness of the HEYLiFE universal suicide prevention program in addressing variables associated with suicidal ideation and suicide attempts among adolescents on the mid-term. The short-term negative effects on stigma and more negative effects on males should be addressed in the future. Future evaluation studies should examine its effects on suicidality and its effectiveness within populations at high risk.

TRIAL REGISTRATION

The study was preregistered in the German Clinical Trials Register (registration number: DRKS00017045; registration date: 02/04/2019).

The Suicide Prevention for College Student (SPCS) Gatekeepers Program

Background: Linking college students with mental health services is critical, especially now, as many students report increased mental health concerns and suicidal ideation in the wake of COVID-19. The Suicide Prevention for College Student (SPCS) Gatekeepers Program provides student education and training to help link those in need with appropriate services. Aims: This study aimed to replicate and extend pilot study results by examining the effects of the training program across a larger, more diverse sample of students. Method: As part of three SAMHSA Mental Health and Training Grants, the program was implemented across three college campuses over three years. Results: At posttest, those who participated in the program demonstrated increased knowledge, suicide prevention self-efficacy, and decreased stigma towards suicide. A follow-up questionnaire revealed that students continued to demonstrate program gains 12 weeks after participating, but there was a slight decline in knowledge and self-efficacy between posttest and follow-up. Limitations: Attrition at follow-up should be addressed in future research, and reliability and validity of measures should be further assessed. Conclusion: This study provides support for the efficacy and generalizability of the SPCS Gatekeepers training program.