• 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.

• Korean Journal of Biological Psychiatry
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• v.17 no.2
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• pp.65-69
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• 2010

Gene-environment interactions are important in pathogenesis of suicide or suicidal behavior. Twin and adoption studies and family studies show that genetic factors play a critical role in suicide or suicidal behavior. Given the strong association between serotonergic neurotransmission and suicide, recent molecular genetic studies have focused on polymorphisms of serotonin genes, especially on serotonin transporter and tryptophan hydroxylase genes. Some studies have revealed a significant interaction between s allele of the serotonin transporter gene and the risk of suicide attempt associated with childhood trauma. In addition, the polymorphism of brain-derived neurotrophic factor gene also may influence the effect of childhood trauma in relation to the risk of attempting suicide. Future studies should explore genetic and environmental factors in suicide or suicidal behavior and examine for gene and environment interaction.

• Journal of Digital Convergence
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• v.10 no.11
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• pp.525-533
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• 2012

This aim of the present study was to determine the prevalence of suicide-related behavior(suicide ideation, plans and attemps) and its relationship in college students. 384 college students in Daejeon, Chungbuk provice were selected for this study from April 2 to April 21, 2012. Collected data was analyzed by using the SPSS 19.0 pragram. The prevalence of lifetime suicide ideation, plans and attemps were 32.3%, 4.7% and 3.0%. Respondents with mild ~ severe depressive symptoms were 42.2%. Depressive symptom was the consistent and crucial risk factor associated with suicide-related behavior indicates(suicide ideation, plans and attempts) commonly. We consider the suicide ideation and depressive symptom when develop the suicide prevention program. To prevent suicide, institutionalization of suicide screening program for who experience suicide ideation, depression, follow management of pre-suicide attemptor, surrounders of suicide victims, development of manual about strategy toward suicide, operating mental health program, delicate media representation.

• 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.

• Journal of the Korea Convergence Society
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• v.8 no.11
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• pp.431-438
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• 2017

The purpose of the study was to identify the factors on Gatekeeper behavior of adolescents for suicide prevention. The participants were five high school students from D metropolitan city. The collected data were analysed using t-test, ANOVA, Multiple regression with SPSS 21.0 program. In the results of the study, Gatekeeper behavior showed significant difference by gender(t=2.85, p=.005), type of school(t=-2.81, p=.006), experience of significant others' suicide(t=-2.09, p=.038). Gatekeeper behavior had a positive relationship with the perception toward suicide prevention(r=.23, p=.006) and the knowledge about suicide prevention(r=.42, p<.001). In regression analysis, significant influencing factors on Gatekeeper behavior were the perception toward suicide prevention (${\beta}=.20$, p=.006) and the knowledge about suicide prevention(${\beta}=.35$, p<.001), and these variables showed 24.3% of variance. Therefore, it need to develop the intervention for improving positive perception and active knowledge about suicide prevention in adolescents. In addition, future study to identify various predictable variables is needed.

• Journal of the Korean Society of School Health
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• v.22 no.2
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• pp.13-23
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• 2009

Purpose: Suicide was considered as a big public health concern in recent years because suicide mortality has been increased rapidly. This study was to investigate the prevalence and risk factors of suicidal ideation among adolescents in South Korea. Methods: The data of 2007 Youth Health Risk Behavior Web-based Survey collected by Korean Center for Disease Control were analyzed using logistic regression for this study. Results: The prevalence of suicidal ideation was 23.7% in South Korea. The risk factors of suicide ideation were depression (odds 8.43), perceived stress(odds 4.30), drug use (odds 2.47), sexual intercourse(odds 2.36), present smoking (odds 1.76), present alcohol drink (odds 2.39), feeling unhappiness (odds 2.89), living with none of parents (odds 1.71), gender(odds 1.72), health status (odds 1.66), and socioeconomic status (odds 2.0). Conclusion : Health risk behaviors and mental health status were related to suicide ideation. Health risk behavior such as smoking and drinking prevention programs and mental health promotion programs should be implemented to decrease suicide ideation among adolescents. Suicide, mental health and health risk behaviors should be prevented through comprehensive health promotion programs.

• Journal of Korean Academy of Nursing
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• v.38 no.3
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• pp.465-473
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• 2008

Purpose: Suicide has been considered a large public health concern in recent years because suicide mortality has been increasing rapidly. This study was done to investigate the prevalence and risk factors of a suicide attempt among adolescents in South Korea. Methods: The data of the 2006 Youth Health Risk Behavior web-based Survey collected by the Korean Center for Disease Control was analyzed using logistic regression for this study. Results: The prevalence of a suicide attempt was 5.2% in South Korea. The risk factors of a suicide attempt were suicidal ideation (odds 31.83), depression (odds 7.98), drug use (odds 4.67), currently smoking (odds 3.19), feeling unhappiness (odds 2.77), stress (odds 2.60), currently drinking alcohol (odds 2.39), sexual activity (odds 2.33), living with neither parent (odds 2.24), initial alcohol drinking by age 9 (odds 1.80), health status (odds 2.15), skipped breakfast (odds 1.75), disease (odds 1.65), and school records (odds 1.22). Conclusion: Suicide screening and prevention programs should be developed, considering these risk factors. Suicide prevention programs should be applied to the at risk population prior to a suicide attempt.

• Anxiety and mood
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• v.9 no.1
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• pp.10-18
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• 2013

The increasing suicide rate is a serious problem in Korea. Because of increased awareness of suicidality as a problem and because completed suicide is the fourth leading cause of death, it is very important to assess the risk of suicide. The purpose of this review is to provide a systematic examination of predictive validity of measures of suicidal ideation and behavior. A number of instruments are described as useful for identifying individuals "at high risk" for suicidal behavior. However, the predictive validity for most suicide measures has not been established. The present review only includes suicide assessment instruments with published predictive validity. In addition to evaluating the suicide assessment with respect to predictive validity, the present review describes and summarizes the psychometric properties of each measure. In conclusion, because of the complexity of studying the risk of suicide and the paucity of well-designed studies, it is extremely difficult to compare and generalize these findings. In addition, only a few instruments, such as the Scale for Suicide Ideation, Suicide Intent Scale and the Beck Hopelessness Scale, have been found to be significant risk factors for completed suicide. Another problem in the field involves that there have been few suicide measures designed for elderly populations. Clearly, future research is needed to investigate the predictive validity of standardized measures for completed suicide, especially targeting elderly populations.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.2
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• pp.122-129
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• 2019

This study was to investigate the moderating effect of the protective factors in the relationship between impulsivity and suicide behavior of elementary school students. This study surveyed total 573 elementary school students located in Seoul. They completed survey questionnaires of impulsivity, suicide behavior and protective factors. Collected data was examined using correlation analyses and hierarchical multiple regression analyses. First, a total of 29(5.1%) students reported suicide plan, 17(3.0%) students reported suicide attempts and the rate of suicide behavior was 7.1%(n=41). Second, there was a negative relationship between impulsivity and protective factors and a positive relationship between impulsivity and suicide behavior. Also, it was found that the protective factors(individual factor, family factor, peer factor, school factor) moderated the relationship between impulsivity and suicide behavior of elementary school students. The implications and limitations of this study were discussed.

• Korean Journal of Biological Psychiatry
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• v.12 no.1
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• pp.3-12
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• 2005

Most suicides(about 90%) occur in the context of psychiatric disorders. Prediction of suicide risk in patients with mental illness is very important in preventing suicide attempts. However, current approaches to predict suicidality are based on clinical history and have low specificity and biological markers are not yet included. Many studies have explored the association between different biological parameters and suicidality. Studies of cerebro-spinal fluid(CSF) demonstrated that 5-HIAA and HVA levels were lower in patients with a history of suicide. Platelet serotonin transporter and the 5-HT2 serotonin receptor have also been studied in relation to violence and suicide. Depressive patients with greater suicidal tendency had significantly lower cholesterol concentrations but some researchers failed to find the correlation. DST non-supression is reported to predict suicidality in major depression. Several studies demonstrated a relationship between intron 7 polymorphism of tryptophan hydroxylase and suicidal behavior. Since suicide is not occurred in a single disease, the systematic and comprehensive study in large samples with various diagnoses is necessary to find the biological and genetic predictors of suicidal behavior.