Objectives: This study examined the factors influencing the psychological problems experienced by suicide survivors to propose support measures for them. Methods: One thousand one hundred and twenty suicide survivors who participated in psychological autopsy interviews from 2015 to 2022 were examined to explore the variables affecting psychological problems (sleep problems, depression, alcohol use problems, prolonged grief, and suicidal thoughts). Results: The analysis showed that, when controlling for demographic information, the relationship with the deceased and experiencing negative changes after the loss significantly influenced the psychological problems of suicide survivors. Conclusion This study is significant in examining various psychological issues of suicide survivors. Based on the analysis results, this paper proposes interventions tailored to the demographic characteristics of suicide survivors, enhanced support for those who lost children or spouses, and interventions addressing the negative changes after bereavement.

Objectives: This study examined the characteristics of data obtained through psychological autopsy interviews by comparing them with suicide victim data from a comprehensive investigation. Methods: For analysis, the psychological autopsy interview data held by the Korea Foundation for Suicide Prevention were compared with suicide victim data from a comprehensive investigation based on the latest three years (2018–2020) by year of death. Results: The analysis showed that the information collected through psychological autopsy interviews pertained to individuals employed at the time of death and had spouses or cohabitants.Compared to the comprehensive investigation, the psychological autopsy interviews estimated a higher proportion of relationship and mental health issues as the primary causes of suicide and detected language, behavior, and emotional warning signs at a higher rate. Conclusion Despite limitations, such as estimation issues of interviewees and investigators, differences in detailed items between the two data sources, and the high proportion of unknowns in the comprehensive investigation data, this study is significant in understanding the characteristics of nationally conducted psychological autopsy data. Future continuous analysis is anticipated to contribute to the development of effective suicide prevention strategies.