Journal of The Korean Society of Clinical Toxicology

Original 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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Abstract 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.

Demographic characteristics of patients admitted to the emergency department for intoxication and a time series analysis during the COVID-19 period: Bongmin Son, Nayoon Kang, Eunah Han, Gina Yu, Junho Cho, Jaiwoog Ko, Taeyoung Kong, Sung Phil Chung, Minhong Choa; J Korean Soc Clin Toxicol. 2023;21(2):92-107. Published online December 29, 2023; DOI: https://doi.org/10.22537/jksct.2023.00011

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Abstract PDF: Purpose: This study investigated the characteristics and treatment outcomes of patients who visited the emergency department due to intoxication and analyzed the impact of the coronavirus disease 2019 (COVID-19) pandemic on their visits.
Methods
A retrospective study was conducted using data from the National Emergency Department Information System (NEDIS) on patients who visited the emergency department due to intoxication between January 2014 and December 2020. In total, 277,791 patients were included in the study, and their demographic and clinical data were analyzed. A model was created from 2014 to 2019 and applied to 2020 (i.e., during the COVID-19 pandemic) to conduct a time series analysis distinguishing between unexpected accidents and suicide/self-harm among patients who visited the emergency department.
Results
The most common reason for visiting the emergency department was unintentional accidents (48.5%), followed by self-harm/suicide attempts (43.8%). Unexpected accident patients and self-harm/suicide patients showed statistically significant differences in terms of sex, age group, hospitalization rate, and mortality rate. The time series analysis showed a decrease in patients with unexpected accidents during the COVID-19 pandemic, but no change in patients with suicide/self-harm.
Conclusion
Depending on the intentionality of the intoxication, significant differences were found in the age group, the substance of intoxication, and the mortality rate. Therefore, future analyses of patients with intoxication should be stratified according to intentionality. In addition, the time series analysis of intentional self-harm/suicide did not show a decrease in 2010 in the number of patients, whereas a decrease was found for unintentional accidents.

Analysis of social factors influencing authenticity of suicide for patient who attempt to suicide in emergency department: Retrospective study based Post-suicidal Care Program data: Jae-Gu Ji, Yang-Weon Kim, Ji-Hun Kang, Yun-Deok Jang; J Korean Soc Clin Toxicol. 2021;19(1):8-16. Published online June 30, 2021; DOI: https://doi.org/10.22537/jksct.2021.19.1.8

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Purpose: This study was conducted to analyze the social factors influencing the 'authenticity of suicidal ideation' based post-suicidal care programs in emergency departments (EDs). Methods: This retrospective study was an analysis using the data of patients who had attempted suicide and visited the ED in tertiary urban hospitals from January 1, 2016, to December 31, 2018. The variables examined included gender, age, history of previous psychiatric disease, suicide method, and the number of previous attempts. Univariate and multivariate logistic regression analyses were conducted to identify factors influencing the registration rate for the community-based post-suicide care program. Results: Overall,1,460 suicides were analyzed, 177 (1.16%) showed a high authenticity of suicide. The social factors influencing the authenticity of suicide intent were the unmarried status of men and women, joblessness, history of mental illnesses, more than two previous suicide attempts, the influence of alcohol, and an attempt to commit suicide after midnight more specifically between 24:00 to 6:00 hours in the morning (p<.05). The factors influencing the severity of the condition of high authenticity suicide patients were low Glasgow coma scores (12 points or less), lactate levels, and oxygen saturation observed in the patients who were admitted to the intensive care unit for treatment and died (p<.05). Conclusion: The need for evidence-based preventive measures and early assessment tools at the emergency medicine level is emphasized to reduce the rate of suicide attempts. If the results of this study are used in the management of suicide prevention, the evaluation of the authenticity of suicide intent will be more likely to be made at the emergency medicine level, allowing the severity to be assessed earlier.

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Effect of Multidisciplinary Program for Relapse Prevention on Abstinence Self-efficacy, Impulsivity and Suicidal Ideation among Patients with Substance Use Disorder
Soyun An, Wanju Park
Journal of Korean Academy of psychiatric and Mental Health Nursing.2023; 32(2): 216. CrossRef

Analysis of Factors Affecting the Hospitalization of Patients Visited the Emergency Department after Deliberate Self-poisoning: Woo Sik Noh, Hye Jin Kim; J Korean Soc Clin Toxicol. 2020;18(2):102-109. Published online December 31, 2020; DOI: https://doi.org/10.22537/jksct.2020.18.2.102

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Abstract PDF: Purpose: This study examined factors associated with the hospitalization of patients who visited the emergency department (ED) after deliberate self-poisoning. Methods: The medical records of the patients, who visited the ED at a tertiary teaching hospital after deliberate self-poisoning between March 2017 and December 2019, were reviewed retrospectively. Results: Fifty-seven in the hospitalization and 236 in the discharge group patients were included. The mean age in the hospitalization and discharge group was 48.8±20.4 and 41.8±19.1, respectively (p=0.020). Univariate analysis revealed statistically significant differences in age (p=0.020), mental status (p<0.001), request for help (p=0.046), chronic disease (p=0.036), substance ingested (p<0.001), and risk rescue-rating scale (p<0.001) between the two groups (hospitalization group and discharge group). In multiple logistic regression analysis for predicting the hospitalization of patients after deliberate self-poisoning, the Risk-Rescue Rating Scale (RRRS) was identified (OR=1.493, 95% confidential interval=1.330-1.675, p<0.001). Receiver operating characteristics analysis of RRRS for the decision to hospitalize showed a cut-off value of 38.9, with a sensitivity, specificity, and area under the curve of 96.4%, 77.0%, and 0.949, respectively. Conclusion: The RRRS can be used to determine the hospitalization for patients who visited the ED after deliberate self-poisoning. Nevertheless, multicenter prospective studies will be needed to determine the generalisability of these results.

Self-poisoning as a Target Group for Prevention of Suicide: Moon Hwan Kwak, Hyun Young Kang, Si Jin Lee, Kap Su Han, Su Jin Kim, Eu Jung Lee, Sung Woo Lee; J Korean Soc Clin Toxicol. 2018;16(2):93-101. Published online December 31, 2018; DOI: https://doi.org/10.22537/jksct.2018.16.2.93

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Abstract PDF: Purpose: The Korean government has tried to decrease the suicide death rate over the last decade. Suicide attempts, particularly non-fatal attempts, are the most powerful known risk factor for a completed suicide. An analysis of suicide attempt methods will help establish the effective preventive action of suicide. Fit prevention according to the method of suicide attempt may decrease the incidence of suicide death. Self-poisoning is suggested as a major method of both suicide attempts and suicide death. The aim of this study was to determine if a self-poisoning patient is a suitable target for the prevention of the suicide. Methods: This was retrospective analysis of a prospective cohort, which included patients who presented to the emergency department (ED) after a self-harm or suicide attempt from Jan 2013 to Dec 2017. The proportion of methods in suicide attempts, psychological consultation, and fatality according to the suicide attempt method were analyzed. The types of poison were also analyzed. Results: Poisoning was the most common method of suicide attempts (52.1%). The rate of psychological consultations were 18.8% for all patients and 29.1% for poison patients (p<0.001). The rate of mortality in poisoning was 0.6%. Psychological consultation was performed more frequently in admission cases than discharged cases. The most common materials of poisons was psychological medicines and sedatives that had been prescribed at clinics or hospital. Conclusion: Self-poisoning is a major method of suicide attempt with a high rate of psychiatric consultation, low mortality rate, versus others methods. The prevention of suicide death for suicide attempts may focus on self-poisoning, which is the major method of suicide attempts. A suitable aftercare program for self-poisoning may be an effective method for preventing suicide if an early diagnosis and management of psychiatric disorders through psychiatric consultation can be made, and early connection to social prevention program for non-fatal patients are possible.

Epidemiologic Characteristics of Intentional Poisoning: Emergency Department Based Injury in-depth Surveillance During 2011-2015: Hak Soo Lee, Juhee Han, Ji Hoon Kim, Sunpyo Kim, Sun Hyu Kim, Ji Sook Lee, Gyu Chong Cho, Chul Han, Joon Min Park, Sung Phil Chung, Min Joung Kim; J Korean Soc Clin Toxicol. 2017;15(2):131-139. Published online December 31, 2017; DOI: https://doi.org/10.22537/jksct.2017.15.2.131

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Abstract PDF: Purpose: The purpose of this study was to investigate the epidemiologic characteristics of patients who visited emergency departments (EDs) after intentional poisoning in Korea. Methods: This study retrospectively analyzed the data of of 23 hospitals during a five-year period, between 2011 and 2015. We included patients who inflicted injury to themselves - attempt of suicide - by means of poisoning. Results: A total of 18,121 patients visited an ED after intentional poisoning. Among them, 58.3% were females; however, there were more males among those aged 60 years or older. The mortality rate for males was 8.6%, which was 3.1 times higher than that for females with 2.8%. The most common poison was pesticides (35.4%) in males and sedative-hypnotics (44.0%) in females. The most common causative agent of death was pesticide in both sexes (75.2% and 65.3%, respectively). Since the production of paraquat was discontinued in 2011, the number of deaths from pesticide poisoning has decreased. The mortality rate declined in both males and females, from 12.6% and 4.5% in 2011 to 7.1% and 2.1% in 2015, respectively. Conclusion: In this study, we analyzed the epidemiologic characteristics of intentional poisoning, especially the frequency of suicide attempts by gender and age group, the cause of suicide, and the causative agent. This can be used as basic data for establishing policies to reduce and prevent suicide attempts by poisoning.

Attempted Suicide by Nitrogen Gas Asphyxiation: A Case Report: Sung-Wook Park, Seok-Ran Yeom, Sang-kyoon Han, Hyung-Bin Kim, Young-Mo Cho, Byung-Kwan Bae, Il-Jae Wang; J Korean Soc Clin Toxicol. 2017;15(1):47-50. Published online June 30, 2017; DOI: https://doi.org/10.22537/jksct.2017.15.1.47

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Abstract PDF: Nitrogen is an inert gas that is harmless to humans under normal conditions. While it is not inherently toxic, nitrogen gas becomes dangerous when it displaces oxygen, resulting in suffocation. Herein, we report a case of a 34-year-old man who attempted suicide by nitrogen asphyxiation who presenting with decreased mental function and agitation. Lactic acidosis and hyperammonemia were observed on presentation at the emergency department, but these improved after a few hours. After 2 days, the patient regained full consciousness, and was discharged without any complications. Survival after asphyxiation due to nitrogen gas is very rare, and these patients are more likely to have poorer outcomes. There is a potential for the increasing use of nitrogen gas as a method of committing suicide because of the ease of access to this gas.

Epidemiologic Characteristics of Carbon Monoxide Poisoning: Emergency Department Based Injury In-depth Surveillance of Twenty Hospitals: Sohyun Bae, Jisook Lee, Kyunghwan Kim, Junseok Park, Dongwun Shin, Hyunjong Kim, Joonmin Park, Hoon Kim, Woochan Jeon; J Korean Soc Clin Toxicol. 2016;14(2):122-128. Published online December 31, 2016; DOI: https://doi.org/10.22537/jksct.2016.14.2.122

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Purpose: This study was conducted to describe the characteristics of patients with carbon monoxide (CO) poisoning. Methods: We retrospectively surveyed data from the Emergency Department based Injury In-depth Surveillance of 20 hospitals (2011-2014). We included patients whose mechanism of injury was acute CO poisoning caused by inhalation of gases from charcoal or briquettes. We surveyed the annual frequency, gender, age, result of emergency treatment, rate of intensive care unit (ICU) admission, result of admission, association with alcohol, and place of accident. We also surveyed the cause and experience of past suicide attempts by intentional poisoning. Results: A total of 3,405 patients were included (2,015 (59.2%) and 1,390 (40.8%) males and females, respectively) with a mean age of $39.83{pm}18.51$ year old. The results revealed that the annual frequency of CO poisoning had increased and the frequency of unintentional CO poisoning was higher than that of intentional CO poisoning in January, February and December. The mean age of intentional CO poisoning was younger than that of unintentional CO poisoning ($38.41{pm}13.03$ vs $40.95{pm}21.83$) (p<0.001). The rates of discharge against medical advice (DAMA), ICU care and alcohol association for intentional CO poisoning were higher than for unintentional CO poisoning (36.4% vs 14.0%, 17.8% vs 4.7%, 45.2% vs 5.6%) (p<0.001). The most common place of CO poisoning was in one's residence. Conclusion: The annual frequency of total CO poisoning has increased, and unintentional CO poisoning showed seasonal variation. DAMA, ICU care, and alcohol association of intentional CO poisoning were higher than those of unintentional CO poisoning.

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Prevalence of Carbon Monoxide Poisoning and Hyperbaric Oxygen Therapy in Korea: Analysis of National Claims Data in 2010–2019
Eunah Han, Gina Yu, Hye Sun Lee, Goeun Park, Sung Phil Chung
Journal of Korean Medical Science.2023;[Epub] CrossRef

Limitation of Psychiatric Intervention for Suicidal Drug Intoxication Patients in Emergency Room: Joo Hwan Lee, Seung Jun Yang, Seung Wan Eun, Sang Chan Jin, Woo Ik Choi, Sung Won Jung; J Korean Soc Clin Toxicol. 2016;14(1):37-46. Published online June 30, 2016

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Abstract PDF: Purpose: This study was designed to determine the factors hindering psychiatric intervention for suicide attempters in the emergency room (ER). Methods: Participants were 299 patients aged 18 years or older admitted to the ER for suicidal drug overdose between July 2012 and June 2014. Patients were divided into two groups according to whether they had received psychiatric treatment in the ER. Medical histories and follow-up treatments were determined by examining patients' medical records and through phone surveys, and were then compared using ${chi}^2$-test and Fisher's exact test. In addition, the rate of satisfaction of the treatment group and the reasons for their dissatisfaction were also determined. Results: The treatment and non-treatment groups comprised 135 (45%) and 164 patients (55%), respectively. Factors influencing participation in psychiatric intervention were previous history of suicide attempts (p=0.004), history of psychiatric disorder (p<0.001), time of day (p=0.039), and day of the week (p=0.040) of arrival in the ER. Whether or not the patient received follow-up psychiatric treatment was not significantly relevant (p=0.300). Of the 82 patients who participated in the treatment satisfaction survey, 50.2% reported being unsatisfied, mainly because of unfriendly medical personnel (36.6%), discomfort regarding other people's perceptions (24.4%), and cursory care (14.6%). Conclusion: To raise the participation rate of psychiatric consult, cooperation with psychiatry at night and on weekends is required, and incorporation of patients without previous history of suicidal attempt or other psychiatric disorder is important. Resolution of complaints toward psychiatric consult in suicide attempt survivors is also required.

Contributing Factors for the Registration Rates within Emergency Department Based Post-suicidal Care Program: Dong-Ki Kim, Byeong Jo Chun, Jong Mi Moon, Yong Soo Cho, Kyung-Yeol Bae, Hyun Jung Kim, Mi Jin Kim; J Korean Soc Clin Toxicol. 2016;14(1):54-59. Published online June 30, 2016

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Abstract PDF: Purpose: This study was conducted to investigate the independent factors associated with the registration rate for the community-based post suicidal care program in the emergency department (ED). Methods: This prospective observational study was conducted between January and September 2015 at the academic ED in the tertiary urban hospital. The variables examined included gender, age, address, type of insurance, history of previous psychiatric disease, suicide methods, number of previous attempts, CES-D (The Center for Epidemiologic Studies-Depression Scale), and disposition at ED. Univariate and multivariate logistic regression analysis were conducted to identify factors affecting the registration rate for the community-based post suicidal care program. Results: Overall, 331 suicides were investigated, 61 (18.4%) of which were registered in the post-suicide care program. Factors such as a intervention by psychiatric physician (OR: 3.287, 95%; CI: 1.207-9.624) and levels of depression by CES-D score of 16-24 (OR: 3.635; CI: 1.055-12.526) were significantly correlated with registration for the program. Conclusion: The registration rate for the community-based post suicidal care program was influenced by frequent intervention by a psychiatric physician and levels of depression by CES-D score of 16-24.

The Factors Affecting the Registration Rates for Emergency Department Based Post-suicidal Care Program: Junchul Lee, Hyung Goo Kang, Changsun Kim, Jaehoon Oh, Taeho Lim, Dong Hyun Ahn, Jung Im Lee, Min Hee Park, Kyung Hee Kim; J Korean Soc Clin Toxicol. 2015;13(1):25-32. Published online June 30, 2015

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Abstract PDF: Purpose: The aim of this study was to investigate the independent factors associated with the registration rate for the community-based post suicidal care program in the emergency department (ED). Methods: This prospective observational study was conducted between March and December 2013 at the academic ED at the tertiary urban hospital. During the study period, the pre-designed registry was recorded. The variables examined included the following: patients' demographic data (Sex, age, address, type of insurance, marital status, level of education, and history of previous psychiatric disease), suicide-related data (suicidal methods, combined drink of alcohol and number of previous attempts), and management-related data (disposition at ED, physician's training level, etc.). Univariated and multivariated logistic regression analyses were performed for identification of factors affecting the registration rate for the community-based post suicidal care program. Results: A total of 163 suicides were included during the study period. Of these, 33 (20.2%) patients were registered in the post-suicide care program. Factors including a patient's address (OR: 14.92, 95% CI: 3.606-61.711), immediate intervention by psychiatric healthcare center (OR: 5.05, CI: 1.688-15.134), admissions in hospital (OR: 3.69, CI: 1.286-10.605), and history of previous psychiatric disease (OR: 3.52, CI: 1.216-10.201) showed significant association with registration for the program. Conclusion: The community-based post-suicidal care program, which is available 24 hours a day, should be operated in each district in order to increase the registration rate. Emergency physicians should actively consider the inpatient treatment program for suicidal patients and strongly recommend registration to the program, particularly for patients without previous history of psychiatric disease.

Analysis of Clinical Characteristics by Gender in Children and Adolescents with Intentional Poisoning at Emergency Department: Yun Jae Kim, Byung Hak So, Hyung Min Kim, Won Jung Jeong, Kyeong Man Cha, Seong Wook Kim; J Korean Soc Clin Toxicol. 2014;12(2):63-69. Published online December 31, 2014

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Abstract PDF: Purpose: The aim of this study is to investigate the difference between male and female in some clinically meaningful aspects and to prevent intentional poisoning in children and adolescents. Methods: Retrograde medical records review of patients who visited the emergency department of two secondary hospitals for drug ingestion from March 2010 through March 2013 was performed. Unintentional ingestion or ingestion by others was excluded. Results: A total of 138 cases were reported, male 25.4% (n=35), female 74.6% (n=103). The reason for poisoning was intentional in 132 cases (95.7%) and misuse in six cases (4.3%). In female patients, non-prescription drugs was the most common cause of intentional poisoning (68.9%). Male patients tend to use life substances for intentional poisoning more frequently (20.0%) than female (3.9%). Seven male patients and 12 female patients had previous psychiatric history and 34.3% of male and 41.7% of female were consulted to the psychiatric department. Conclusion: Female adolescents are more likely to ingest drugs intentionally for suicide attempt than males of comparable ages. The drugs they ingested were, in many cases, obtained with ease from the drug store nearby and, remarkably, most of the drugs they obtained in that way were acetaminophen-containing. This suggests that some guidelines or control in the pharmacy that restrict children or adolescents from obtaining potentially or possibly life-threatening drugs might be necessary. In addition, education regarding drugs is thought to be necessary in school for teenagers as they tend to misuse them with incorrect acknowledgement.

Clinical Characteristics of Intentional Carbon Monoxide Poisoning: Min Ki Cho, Yang Weon Kim, Kyeong Ryong Lee, Kyung Woo Lee, Jang Young Lee, Gyu Chong Cho, Junho Cho, Hyun Jong Kim, Seong Hwan Kim, Sung Phil Chung, Hahn Shick Lee; J Korean Soc Clin Toxicol. 2012;10(2):73-79. Published online December 31, 2012

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Abstract PDF: Purpose: The purpose of this study was to identify the changes in the characteristics of patients with carbon monoxide (CO) poisoning, as well as the distinctive differences in intentionally exposed patients. Methods: The medical records of CO poisoning patients, who visited nine emergency departments between January 2010 and December 2011, were reviewed retrospectively. The clinical information including age, gender, hospitalization, type of discharge, cause and location of exposure, site of onset, concentration of initial blood carboxyhemoglobin (COHb), methods of treatment and presence of neurological complications was examined. The subjects were divided into an intentional and non-intentional group and the differences between them was compared. Results: A total 209 subjects were recruited. The median age was 38 years (29~49.5 years). They frequently complained of nausea and vomiting, and the most common exposures occurred in winter, normally in the home. The cause of exposure was usually fire, followed by incomplete combustion of fuels. The median initial blood COHb was 13.15%. The proportion of intentionally exposed patients was 21%. They were significantly younger, more frequently discharged against medical advice, and showed a higher initial blood COHb level (22.85%) than the non-intentional group. Conclusion: This study suggests that those with intentional CO poisoning are normally discharged against medical advice even when they have a higher initial COHb level. An adequate explanation of the delayed neurologic sequelae and short term follow-up observation is recommended for those patients with intentional exposure.

Association of Prescribed Drug intoxication and Neuropsychiatric history: Hyeon-Jung Kim, Hye-Mi Kim, Ho-Jung Kim, Young-Soon Cho, Myung-Gab Lee, Duck-Ho Jun, Chan-Young Go; J Korean Soc Clin Toxicol. 2011;9(2):77-80. Published online December 31, 2011

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Abstract PDF: Purpose: The purpose of this study was to investigate the relationship between patients with a neuropsychiatric history and features of their suicide attempt, in order to analyze the risk associated with psychiatrist prescribed drugs Methods: We retrospectively investigated cases of intentional overdose drug ingestion in patients greater than 14 years of age who visited OO emergency medical center between January 1, 2008 and July 31, 2010. We evaluated patient medical records to ascertain their age, sex, neuropsychiatric history, and components of ingested intoxicant. Information regarding any suicide reattempt was obtained after discharge through follow up telephone survey. SPSS version 13.0 was used for statistical analysis. Fisher's exact test was performed with p<0.05 considered statistically significant. Results: Ninety-six of 209 patients (46%) had a past history of psychological problems. Among those 96 patients with a history of psychological problems, 46(48%) used an overdose of the medicine prescribed by their psychologist in order to attempt suicide. However, for patients without a history of psychological problems, intoxication by neuropsychiatric drugs was insignificant. Neuropsychiatric patients required greater follow up care after discharge and exhibited significantly more suicide reattempts. Conclusion: This study revealed that patients sometimes use the medicine prescribed by their psychologist to attempt suicide. Therefore, an exhaustive plan to control the medicines prescribed to psychiatric patients should be established.

Prognostic Factors of Acute Poisoning in Elderly Patients: Ji-Yoon Kim, Hyun-Min Jung, Ji-Hye Kim, Seung-Baik Han, Jun-Sig Kim, Jin-Hui Paik; J Korean Soc Clin Toxicol. 2011;9(2):81-87. Published online December 31, 2011

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Abstract PDF: Purpose: Incidents of suicide attempt and acute poisoning in the elderly population is rising. This study investigated the clinical nature of acute poisoning and differences between the survival and mortality groups in the elderly. Methods: We retrospectively investigated 325 patients with acute poisoning who visited the emergency department. Patients were divided into two groups, one survival and one death group. Information regarding patient sex, age, root cause of poisoning, time of year of poisoning, type of intoxicant, duration of time between intoxicant ingestion and arrival at the emergency department, total length of hospital stay, and any previous suicide attempts and subsequent hospitalization were collected. An initial Glasgow Coma Scale (GCS) and an initial and final Poison Severity Score (PSS) for each patient was calculated. Results: The survival rate for men was higher than for women in this study. The most common reason of drug intoxication was suicide, with accidental ingestion and substance abuse occurring in descending frequency. Seasonal factors were reflected in the data with the highest number of incidents occurring in spring and the lowest number in winter. Compared with the mortality group, the survival group had a lower initial PSS with a higher GCS. Conclusion: We conclude that being female, having suicide as a root cause, agrochemicals as an intoxicant, low initial Glasgow Coma Scale and high initial Poisoning Severity Score, are all associated with poor prognosis.

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