Science Weighs in on Suicide Prevention

Suicide and self-harm continue to be serious concerns in Europe, despite decreasing rates over the past two decades. In 2021 alone, 47,346 people died by suicide in the European Union, close to 1% of all deaths reported that year. Measures have been taken at population, subpopulation, and individual levels to prevent suicide and suicide attempts. But can more be done? Yes, according to experts.

Researchers are investigating factors that contribute to suicide at the individual level, as well as environmental and societal pressures that may increase risk. New predictive tools show promise in identifying individuals at high risk, and ongoing programs offer hope for early and ongoing interventions. Successful preventive strategies are multimodal, emphasizing the need for trained primary care and mental health professionals to work together to identify and support individuals at risk at every age and in all settings.

‘Radical Change’ Needed

The medical community’s approach to suicide prevention is all wrong, according to Igor Galynker, MD, PhD, clinical professor of psychiatry and director of the Mount Sinai Suicide Prevention Research Lab in New York City. 

Galynker is collaborating with colleagues in various parts of the world, including Europe, to validate the use of suicide crisis syndrome (SCS) as a diagnosis to help imminent suicide risk evaluation and treatment.

SCS is a negative cognitive-affective state associated with imminent suicidal behavior in those who are already at high risk for suicide. Galynker and his colleagues want to see SCS recognized and accepted as a suicide-specific diagnosis in the Diagnostic and Statistical Manual of Mental Disorders and the World Health Organization’s International Classification of Diseases. 

Currently, he explained to Medscape Medical News, clinicians depend on a person at risk for suicide telling them that this is what they are feeling. This is “absurd,” he said, because people in this situation are in acute pain and distress and cannot answer accurately.

“It is the most lethal psychiatric condition, because people die from it… yet we rely on people at the worst moment of their lives to tell us accurately when and how they are going to kill themselves. We don’t ask people with serious mental illness to diagnose their own mental illness and rely on that diagnosis.”

Data show that most people who attempt or die by suicide deny suicidal thoughts when assessed by healthcare providers using current questionnaires and scales. Thus, there needs to be “a radical change” in how patients at acute risk are assessed and treated to help “prevent suicides and avoid lost opportunities to intervene,” he said.

Galynker explained that SCS is the final and most acute stage of the “ narrative crisis model” of suicide, which reflects the progression of suicidal risk from chronic risk factors to imminent suicidal risk. “The narrative crisis model has four distinct and successive stages, with specific guidance and applicable interventions that enable patients to receive a stage-specific treatment.”

“Suicide crisis syndrome is a very treatable syndrome that rapidly resolves” with appropriate interventions, he said. “Once it is treated, the patient can engage with psychotherapy and other treatments.”

Galynker said he and his colleagues have had encouraging results with their studies so far on the subjective and objective views of clinicians using the risk assessment tools they are developing to assess suicidal ideation. Further studies are ongoing. 

Improving Prediction

There is definitely room for improvement in current approaches to suicide prevention, said Raffaella Calati, PhD, assistant professor of clinical psychology at the University of Milano-Bicocca, Italy, who has had research collaborations with Galynker.

Calati advocates for a more integrated approach across disciplines, institutions, and the community to provide an effective support network for those at risk. 

Accurately predicting suicide risk is challenging, she told Medscape Medical News. She and colleagues are working to develop more precise predictive tools for identifying individuals at risk, often by leveraging artificial intelligence and data analytics. They have designed and implemented app-based interventions for psychiatric patients at risk for suicide and university students with psychological distress. The interventions are personalized and based on multiple approaches, such as cognitive-behavioral therapy (CBT) and third-wave CBT. 

The results of current studies are preliminary, she acknowledged, “but even if apps are extremely complex, our projects received high interest from participants and the scientific community,” she said. The aim now is to integrate these tools into healthcare systems so that monitoring high-risk patients becomes part of regular care. 

Another area of focus is the identification of specific subtypes of individuals at risk for suicide, particularly by examining factors such as pain, dissociation, and interoception — the ability to sense and interpret internal signals from the body. 

“By understanding how these experiences intersect and contribute to suicide risk, I aim to identify distinct profiles within at-risk populations, which could ultimately enable more tailored and effective prevention efforts,” she said.

Her work also involves meta-research to build large, comprehensive datasets that increase statistical power for exploring suicide risk factors, such as physical health conditions and symptoms associated with borderline personality disorder. By creating these datasets, she aims to “improve understanding of how various factors contribute to suicide risk, ultimately supporting more effective prevention strategies.”

Country-Level Efforts

Preventive work is underway in other countries as well. In Nordic countries such as Denmark, Finland, and Sweden, large-scale national registries that track people’s medical histories, prescriptions, and demographic information are being used to develop predictive algorithms that identify those at high risk for suicide. The predictions are based on known risk factors like previous mental health diagnoses, substance abuse, and social determinants of health.

A recent Norwegian study found that a novel assessment tool used at admission to an acute inpatient unit was a powerful predictor of suicide within 3 years post-discharge.

Researchers in the Netherlands have also recently co-designed a digital integrated suicide prevention program, which has led to a significant reduction in suicide mortality. 

SUPREMOCOL (suicide prevention by monitoring and collaborative care) was implemented in Noord-Brabant, a province in the Netherlands that historically had high suicide rates. It combines technology and personal care, allowing healthcare providers to track a person’s mental health, including by phone calls, text messages, and mobile apps that help people express their feelings and report any changes in their mental state. By staying connected, the program aims to identify warning signs early and provide timely interventions.

The results from the 5-year project showed that rates dropped by 21.5%, from 14.4 per 100,000 to 11.8 per 100,000, and remained low, with a rate of 11.3 per 100,000 by 2021.

Finland used to have one of the highest suicide rates in the world. Now it is implementing its suicide prevention program for 2020-2030, with 36 proposed measures to prevent suicide mortality. 

The program includes measures such as increasing public awareness, early intervention, supporting at-risk groups, developing new treatment options, and enhancing research efforts. Earlier successful interventions included limiting access to firearms and poison, and increasing use of antidepressants and other targeted interventions.

“A key is to ensure that the individuals at risk of suicide have access to adequate, timely, and evidence-based care,” said Timo Partonen, MD, research professor at the Finnish Institute for Health and Welfare and associate professor of psychiatry at the University of Helsinki.

“Emergency and frontline professionals, as well as general practitioners and occupational health physicians, have a key role in identifying people at risk of suicide,” he noted. “High-quality competencies will be developed for healthcare professionals, including access to evidence-based suicide prevention models for addressing and assessing suicide risk.” 

Global Strategies

Policymakers across Europe are increasingly recognizing the importance of enhanced public health approaches to suicide prevention. 

The recently adopted EU Action Plan on Mental Health emphasizes the need for comprehensive suicide prevention strategies across Europe, including the promotion of mental health literacy and the provision of accessible mental health services.

The plan was informed by initiatives such as the European Alliance Against Depression (EAAD)-Best project, which ran from 2021 until March 2024. The collaborative project brought together researchers, healthcare providers, and community organizations to improve care for patients with depression and to prevent suicidal behavior in Europe. 

The multimodal approach included community engagement and training for healthcare professionals, as well as promoting the international uptake of the iFightDepression tool, an internet-based self-management approach for patients with depression. It has shown promise in reducing suicide rates in participating regions, including Europe, Australia, South America, and Africa.

“What we now know is that multiple interventions produce a synergic effect with a tendency to reduce suicidal behavior,” said EAAD founding member Ricardo Gusmão, MD, PhD, professor of public mental health at the University of Porto, Portugal. Current approaches to suicide prevention globally vary widely, with “many, fragmentary, atomized interventions, and we know that none of them, in isolation, produces spectacular results.” 

Gusmão explained that promising national suicide prevention strategies are based on multicomponent community interventions. On the clinical side, they encompass training primary health and specialized mental health professionals, and have a guaranteed chain of care and functioning pathways for access. They also involve educational programs in schools, universities, prisons, work settings, and geriatric care centers. Additionally, they have well-developed good standards for media communication and health marketing campaigns on well-being and mental health literacy.

Relevant and cohesive themes for successful strategies include the promotion of positive mental health, the identification and available treatments for depression and common mental disorders, and the management of suicidal crisis stigma. 

“We are now focusing on workplace settings and vulnerable groups such as youth, the elderly, unemployed, migrants and, of course, people affected by mental disorders,” he said. “Suicide prevention is like a web that must be weaved by long-lasting efforts and intersectoral collaboration.”

“Even one suicide is one too many,” Brendan Kelly, MD, PhD, professor of psychiatry, Trinity College Dublin, and author of The Modern Psychiatrist’s Guide to Contemporary Practice, told Medscape Medical News. “Nobody is born wanting to die by suicide. And every suicide is an individual tragedy, not a statistic. We need to work ever more intensively to reduce rates of suicide. All contributions to research and fresh thinking are welcome.”

Galynker, Calati, Partonen, and Kelly have disclosed no relevant financial relationships. 

Gusmão has been involved in organizing Janssen-funded trainings for registrars on suicidal crisis management. 

Priscilla Lynch is a freelance writer for Medscape, with more than 20 years of experience covering medicine and healthcare. She has a master’s in journalism and recently completed a Health Innovation Journalism Fellowship with the International Center for Journalists. X: @priscillalynch.