• The Korean Journal of Health Service Management
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• v.8 no.3
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• pp.193-205
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• 2014

The purpose of this study is to find out the effects of the socio-demographic characteristics, self-recognition factors, and health behavior factors of Korean adolescents on suicide dimension, and grasp the effects of suicide thinking of adolescents on attempting suicide. This study used the eighth primitive data of the "Web-based Survey on Adolescents Health Behavior(2012)", and targeted 72,228 actual test respondent(93.8%). In conclusion, risk factors that greatly influence the suicide dimension of adolescents can be summarized into level of happiness, level of stress, depression, experience drinking, experience smoking, experience with drugs, suicide thinking, etc. and considering these risk factors, a preparation for preventing adolescents' suicide should be established, and along with a regular education, developing and expanding a treatment program for preventing recurrence afterwards of adolescents who have experience attempting suicide are necessary.

• Journal of Applied Reliability
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• v.15 no.2
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• pp.76-83
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• 2015

This study is implemented to find out the risk factors of adolescent suicide due to depression experiences and the factors that have effect on adolescent suicide attempt. Also it tries to figure out that if hospital treatment is enforced after a suicide attempt and the importance of prevention and therapy for adolescent suicide attempt. To analyze, used SPSS 22.0 and raw data made by online survey for adolescent health status is used. The factors effect on suicide attempt of adolescents who have had depression experience and who have not appear differently and hospital treatment is not being done well after attempting suicide. In conclusion, this study tries to show the factors that affect suicide attempts in adolescents, and to propose basis for the measures that can reduce suicide attempts in adolescents.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.31 no.4
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• pp.169-176
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• 2020

Exploring the risk factors of adolescent suicide is important for effective suicide prevention. This study explored the clustering of adolescent suicides based on six risk factors: mental disorder, broken family, depression, anxiety, previous suicide attempts, and deviant behaviors. Using 173 student suicide reports obtained from the Ministry of Education, we evaluated the associations between suicide and variables related to mental disorders; dysfunctional family life; depression and anxiety; previous suicide attempts; deviant behaviors such as drinking and smoking; and school life characteristics, including attendance and discipline, problems within the past year, and incidents prior to suicide. In addition, reports of warning signs just before suicide were included in the analysis. The two-stage cluster analysis classified the students into three clusters: the silent type (cluster 1; 48.55%), in which no risk factors were observed; environmental-risk type (cluster 2: 24.28%), which featured a high frequency of broken households, deviant behaviors such as smoking/drinking and running away from home; and depressive type (cluster 3: 27.17%), which featured a high frequency of mental health problems such as depression, anxiety, and suicide attempts. Identifying the sub-types of adolescent suicide may help to inform tailored suicide prevention and intervention strategies in school.

• The Journal of the Korea Contents Association
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• v.22 no.7
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• pp.318-331
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• 2022

The government has been promoting suicide prevention policies, but the elderly suicide rate has still not improved. This study focused on the role of local governments in solving suicide problems and analyzed three-year data from 2015 to 2017 at local governments level to investigate the relationship between suicide prevention policies and elderly suicide rates. Multiple regression analysis and logistic regression analysis was conducted to control social capital factors, demographic factors, and medical use factors that can affect the elderly suicide rate. As a result of the analysis, it was confirmed that suicide prevention ordinances were enacted and suicide prevention centers were established in areas with high suicide rates. In areas with high suicide rates, the suicide rate decreases if the elapsed period is long after the establishment of the center. From the perspective of suicide rates, it was analyzed that the local welfare support system was more affected. Accordingly, it was confirmed that the suicide prevention policy should be established in connection with the reinforcement of welfare policies

• Korean Journal of Artificial Intelligence
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• v.11 no.3
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• pp.23-27
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• 2023

The purpose of this study is to identify and analyze suicide factors of adolescents using the Random Forest algorithm. According to statistics on the cause of death by the National Statistical Office in 2019, suicide was the highest cause of death in the 10-19 age group, which is a major social problem. Using machine learning algorithms, research can predict whether individual adolescents think of suicide without investigating suicidal ideation and can contribute to protecting adolescents and analyzing factors that affect suicide, establishing effective intervention measures. As a result of predicting with the random forest algorithm, it can be said that the possibility of identifying and predicting suicide factors of adolescents was confirmed. To increase the accuracy of the results, continuous research on the factors that induce youth suicide is necessary.

• Korean Journal of Health Education and Promotion
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• v.30 no.1
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• pp.41-52
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• 2013

Objectives: Rural-urban differences in suicide have been observed in many settings. However, there has been little research addressing what factors can explain these differences. The purpose of this study was to analyze which compositional factors and contextual factors in local areas might be related to local suicide. Methods: The study design was cross-sectional. The data for 251 primary local governments on their age-standardized suicide mortality and their predefined indicators of compositional factors and contextual factors were obtained from Korean Statistical Information Service as of year 2010. Bivariate analysis including one-way ANOVA and chi-square test were used to identify the differences in local features by area type. Seven poisson regression models for each of total, males, and females were used to analyze which compositional and contextual factors were related to suicide. Results: There were differences in suicide between gu and goon in total, male, and female groups. For total, compositional factors including divorce and smoking rate, and contextual factors including financial independency, water and waterwaste coverage, and number of wastewater discharge factories were found to explain the urban-rural differences. Conclusions: This study provided some evidence that contextual factors at the local level as well as compositional factors are useful for predicting local suicide mortality.

• Korean Journal of Health Education and Promotion
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• v.31 no.1
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• pp.45-56
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• 2014

Objectives: This study aimed to examine how the relationship between socioeconomic factors at the macro level and suicide mortality rate of Korea was different from that of other OECD countries. Methods: We created OECD panel data of 29 OECD countries from 1985 to 2006 and analyzed the relationship between socioeconomic factors and suicide mortality rate for separate age and sex groups using a fixed-effect model. Economic factors included per capita GDP, per capita GDP growth rate, unemployment rate, and women's economic participation rate. Social factors included birth rate, alcohol consumption, and the percentage of population 65 and older. Results: Unemployment rate had a positive relationship with suicide in other countries but it had a negative relationship in some groups of Korea. Women's economic participation rate was both positively and negatively related with suicide in Korea but it did not relate to suicide in others. The negative relationship of birth rate and the positive relationship of alcohol consumption with suicide were evident in Korea, which were not found in other countries. The percentage of population 65 and older was negatively correlated in some female groups in Korea, while no significant relationship was found in other countries. Conclusions: Korea was substantially different from other OECD countries in the relationship between socioeconomic factors and suicide mortality rate.

• Korean Journal of Biological Psychiatry
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• v.23 no.4
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• pp.157-165
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• 2016

Objectives There were previous studies which indicated that attitude toward suicide is able to influence the suicide outcome in both individual and group levels. In regard to the highest suicide rate in Korea, our study aims to explore the influence that attitude toward suicide has on suicide by comparing the national attitude towards suicide with a representative sample of the general population. Methods The target population was 20- to 59-year-old adults from South Korea, Japan, and the United States. The panel data were divided according to gender, age, and residential area of individuals, and an email with a hyperlink to our web survey was sent to the randomly selected participants in each stratum. To measure the perceptual differences about suicide in different cultures, this study adopted the Attitudes Toward Suicide questionnaire. Results A total of 2247 subjects in three countries participated in this study. According to results from factor analysis, there were different structure of factors and included items within factors in the three countries : five factors with nineteen items in South Korea, five factors with nineteen items in the United States, and five factors with twenty-five items in Japan. With regard to permissive attitude toward suicide, the mean value of permissiveness was not significantly different among countries, but permissiveness according to education level, gender, and marital status was different in each country. Conclusions This study is the first nationwide comparative study about attitude toward suicide with a representative sample. Our findings suggest that permissive attitude toward suicide influence the suicide phenomenon in each country ; however, its impact is not a mean score of permissiveness, but the detailed difference by various demographics.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.29 no.3
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• pp.114-121
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• 2018

Objective: Although suicide is a serious public health concern for adolescents, there is a lack of studies that explore its risk factors in the Republic of Korea. The present study aims to investigate risk factors associated with suicidal behaviors in Korean adolescents. Methods: Participants consisted of 2258 middle and high school students who completed a series of questionnaires regarding suicide ideation or attempts, non-suicidal self-injuries, depression, impulsivity, drinking behaviors, and negative life events, including peer bullying. Results: Among the participants, 8.3% of students reported suicide ideation, while 3.2% reported a history of a suicide attempt in the past 12 months. Depression, peer-victimization, internet-related delinquency, and positive attitudes toward suicide were associated with suicidal ideations and attempts. Adverse life events were also associated with suicide ideation, but not attempts, while not living with both parents and poor family relationships were associated with suicide attempts, but not ideations. Non-suicidal self-injuries were associated with both suicide ideations and attempts. Students with suicidal ideations and attempts can be differentiated depending on the presence of self-injury. Conclusion: In addition to depression or behavioral problems, non-suicidal self-injuries and lack of support from family may also play significant roles in suicide attempts in adolescents. To facilitate the prevention of suicide in adolescents, longitudinal studies should be followed to confirm the risk factors identified in this study.

• Journal of the Korean society of biological therapies in psychiatry
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• v.24 no.3
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• pp.129-141
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• 2018

Suicide is a behavior that is intended to cause death by itself and requires medical treatment, resulting in suicidal attempt or completion. Suicide causes loss of life, damages the body, costs a lot of medical expenses, and causes families to fall into sorrow and suffering therefore this suicide is a huge loss to family and society. There have been attempts to reduce and prevent suicide by understanding the mechanism of suicide. The mechanism of suicide can be thought of as psychological mechanism and biological mechanism. In the past, if we considered the psychological and biological mechanisms separately, the development of neuroscience now connects and integrates these two. Psychological factors affect biological factors and biological temperaments also affect perception or thinking about the situation and increase psychological vulnerability. Distant factors in suicidal behavior-such as childhood adversity and family and genetic predisposition-increase the lifetime risk of suicide. They alter the response to stress and other processes through changes in gene expression and regulation of emotional and behavioral characteristics. Distant factors affect the biological system and consequently changes in these systems can increase the risk of suicide. In other words, the distal factor does not directly induce suicidal behavior but rather acts indirectly through developmental or mediating factors. These mediating factors are impulsive aggressive and anxious trait, and chronic use of substances. The mechanism of this disorder is the abnormality of the serotonin system and the abnormality of the lipid level. Proximal factors are associated with the onset of suicide events and include changes in the major neurotransmitter systems, inflammatory changes, and dysfunction of glial cells in the brain. A series of studies, including a variety of research methods and postmortem and in-vivo imaging studies, show the impairment of the serotonergic neurotransmitter system and hypothalamic-pituitary-adrenal axis stress response system for suicidal behavior. These disorders lead to suicidal behavior due to difficulty in cognitive control of mood, pessimism, reactive aggression, abnormality in problem solving abilities, excessive response to negative social signals, severe emotional distress, and cognitive dysregulation of suicidal ideation.