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Juhyun Song 2 Articles
Patterns of self-harm/suicide attempters who visited emergency department over the past 10 years and changes in poisoning as a major method (2011–2020)
Kyu Hyun Pai, Sung Woo Lee, Su Jin Kim, Kap Su Han, Juhyun Song, Sijin Lee, Ji Hwan Park, Jeijoon Song
J Korean Soc Clin Toxicol. 2023;21(2):69-80.   Published online December 29, 2023
DOI: https://doi.org/10.22537/jksct.2023.00019
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AbstractAbstract PDF
Purpose: Suicide ranks among the top causes of death among youth in South Korea. This study aimed to identify the characteristics of suicidal individuals treated at emergency departments between 2011 and 2020.
Methods
A retrospective analysis was conducted using data from January 2011 to December 2020 in the Injury Surveillance Cohort, a prospective registry. Patients’ sex, age, mortality, methods of self-harm, and previous suicide attempts were analyzed. The methods of self-harm were categorized into falls, asphyxiation, blunt injuries, penetrating injuries, poisoning, and others. Sub-groups with and without poisoning were compared.
Results
The proportion of self-harm/suicide attempts increased from 2.3% (2011) to 5.0% (2020). The mortality rate decreased from 10.8% (2011) to 6.3% (2020). Poisoning was the most common method (61.7%). Mortality rates ranged from 42.0% for asphyxiation to 0.2% for blunt injuries. Individuals in their 20s showed a marked increase in suicide/self-harm attempts, especially in the last three years. A large proportion of decedents in their 70s or older (52.6%) used poisoning as a method of suicide. The percentage of individuals with two or more previous attempts rose from 7.1% (2011) to 19.7% (2020). The death rates by poisoning decreased from 7.7% (2011) to 2.5% (2020).
Conclusion
Our findings underscore the urgent need for targeted interventions and suicide prevention policies. Managing and reducing suicide and self-harm in emergency settings will require a focus on poisoning, the 10–29 age group, and the elderly. This paper will be valuable for future policies aiming to reduce the societal burden of suicide and self-harm.
The 2022 Annual Report on Toxicology Surveillance and Severe Poisoning Cases at Emergency Departments in Korea
Eun Sun Lee, Su Jin Kim, Gyu Chong Cho, Mi Jin Lee, Byung Hak So, Kyung Su Kim, Juhyun Song, Sung Woo Lee
J Korean Soc Clin Toxicol. 2023;21(1):1-16.   Published online June 30, 2023
DOI: https://doi.org/10.22537/jksct.2023.00007
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AbstractAbstract PDFSupplementary Material
Purpose: This study investigated the actual incidence of acute poisoning in Korea on a nationwide scale, with the aim of laying the groundwork for future initiatives in prevention, strategic antidote distribution, and the development of effective emergency treatment for acute poisoning.
Methods
The study analyzed data from 3,038 patients who presented to emergency departments with poisoning-related conditions from June 1, 2022 to December 31, 2022 at 10 sites in nine cities across the country. We extracted data on general characteristics of the poisoning cases, including demographic characteristics (age and gender), place of exposure, reason for poisoning, route of exposure, and the substance involved in the poisoning incident. Age-related patterns in reasons for poisoning, medical outcomes, frequent and primary poisoning substances, and deaths were also analyzed.
Results
The population analyzed in our study was predominantly female, with women constituting 54.74% of all cases. Among infants and children, non-intentional poisoning due to general accidents was the most common cause, accounting for 71.43% of cases. Conversely, suicidal poisoning was more prevalent among teenagers and adults over 20. Fifty-two patients died during the study period, with males comprising approximately two-thirds (67.31%) of these fatalities. Pesticides were the most common poisoning substance among those who died, accounting for 55.77% of such cases. Notably, a significant majority of the victims were elderly individuals aged 60 and above.
Conclusion
This study holds substantial significance, since it represents the first comprehensive investigation and analysis of the symptoms, treatment, and causes of death due to poisoning in Korea on a national scale. By substantially expanding the range and types of poisonous substances examined, we were able to more precisely identify the characteristics and clinical patterns of poisoning cases nationwide.

JKSCT : Journal of The Korean Society of Clinical Toxicology