Suicidal Behaviour, Self-Harm and Related Factors: A Retrospective Study from the Adolescent Psychiatric Unit

Background and objectives: Suicide attempts and self-harm are critical issues in adolescence, often leading to serious and irreversible consequences. These behaviours frequently co-occur and share common biopsychosocial risk factors. Identifying these factors enables a more comprehensive assessment of suicide and self-harm risk, helping specialists recognize high-risk individuals and implement effective preventive measures. This study aimed to examine the association between suicide attempts, self-harm and psychosocial factors among hospitalized adolescents. Materials and methods: A retrospective data analysis was performed using the database of the University Department of Children and Adolescents of the Republican Vilnius Psychiatric Hospital. The study covered patients’ records from December 2022 to February 2025. Information on gender, age, suicide attempts, self-harm, adverse events (bullying, psychological abuse, physical violence within the family, and sexual abuse) and unhealthy habits (smoking, harmful alcohol consumption, and psychoactive substance use), was selected and analyzed in this study. A Chi-square test was used to assess the difference between groups. Results were considered statistically significant when p < 0.05. Results: The study included 599 hospitalized adolescents (26.9% boys; mean age 15.1 ± 1.4 years), of whom 70.8% reported at least one episode of self-harm and 37.8% at least one suicide attempt. Rates of self-harm and suicide attempts were significantly higher in girls than in boys (self-harm: 81.3% vs. 42.2%, ϕ=0.381, p