• Journal of agricultural medicine and community health
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• v.38 no.2
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• pp.116-129
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• 2013

Objectives: This study was performed to identify the associations of social capital with suicidal thoughts and attempts in Korean communities with poor health. Methods: We used the data from community health interviews conducted at 40 administrative sections (dong, eup, or myeon) with high mortality from August to October in 2010, 2011, and 2012 as part of the Health Plus Happiness Plus Projects in Gyeongsangnam-do Province. The 8,800 study subjects composed of 220 adults systematically sampled from each administrative section were asked if they had thought about suicide or had attempted suicide within 1 year. The social participation was measured with 'participation in formal and/or informal group' and trust using responses to three questions about trust of others. Results: The prevalence of suicidal ideation and attempt within 1 year were 10.4% and 0.8%, respectively. The logistic regression analysis revealed that those who participated in only informal groups, or had highest trust level reported less suicidal ideation, or attempt after adjusting for socio-demographic factors (sex, age, marital status, occupation, and food affordability), self-rated health, and health behaviors (smoking, alcohol drinking, and exercise). Conclusions: This study suggested social capital such as social participation and trust was associated with less suicide ideation and attempt. More studies are warranted for the association of social capital with suicidal behavior.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.12
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• pp.8728-8737
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• 2015

The purpose of this study compared the clinical features of suicidal attempters who visit in the past and present of an emergency medical center, used as a basic data for clinical severity and suicide prevention research of future patients. The author conducted a retrospective analysis of the changed characteristics of suicidal attempters who visit an emergency medical center of Wonkwang University Hospital between from January $1^{st}$, 1998 to December $31^{th}$, 1998 and from August $1^{st}$, 2013 to July $31^{th}$, 2015. Factors related to increased occurrence was changed from male(1.1:1) in 1998 to female(1.3:1) in 2013-2015, from age of $2^{nd}$, $3^{rd}$, and above $6^{th}$ decade in 1998 to $3^{rd}-5^{th}$ decade in 2013-2015. Poisoning was the most common method of suicidal attempt(90.8%;1998, 72.7%;2013-2015), Mortality rate was changed from 16.9%(male 23.1%, female 10.0%) in 1998 to 13.8%(male 18.1%, female 10.5%) in 2013-2015. Among the suicidal attempters(total=516), 37 patients has recurred. But consultant of neuropsychiatric department was 48.3%, All suicidal attempters in future were necessarily neuropsychiatric consultant and continuously follow-up because all patients had recurrent suicide attempt, psychologic disorder, suicide rates are higher than in the general population.

• Journal of agricultural medicine and community health
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• v.38 no.2
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• pp.71-84
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• 2013

Objectives: As suicide among the elderly population has been a critical issue in Korea, this study aimed to evaluate correlations of suicidal ideation with protective and risk factors among elderly who reside in a rural community. Methods: A total of 157 elders from Gyeongju city, who had attended senior centers in, were enrolled to answer questionnaires including the Geriatric Depression Scale Short Form-Korea and the Scale for Suicidal Ideation. Data were analyzed using SPSS 18.0K for Windows, and included t-test, Pearson correlation, and a three-step hierarchical multiple regression analyses. Results: Using the hierarchical regression analyses for predicting the elderly's suicidal ideation, male gender and social group variables were entered as predictors in the first step(adjusted $R^2$=0.107, P<0.05). Pain, ADLs, family support variables were not entered in the second step. Depression variable was the only predictor in the third step(adjusted $R^2$=0.384, P<0.001). Conclusions: Although this study confirmed the impact of depression on the suicidal ideation, elderly with risk factors including male gender and social isolation should receive a special attention from community health care professionals.

• The Journal of Asian Finance, Economics and Business
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• v.6 no.2
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• pp.239-246
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• 2019

Teenagers in multicultural families are more prone to depression and problem behaviors caused by violence such as bullying in schools due to their appearance, language presentation skills, and poor learning abilities compared to teenagers in general families. This study is meaningful in that it provides basic information for prevention measures in intervening with damage caused by school violence such as depression, anxiety, suicidal impulses and emotional and social. For this purpose, a survey of 300 elementary school students from 4 to 6 grade, junior high school, and high school students was conducted. A total of 400 questionnaires were distributed and of thos e 385 were used for the final analysis. The results of the study are as follows. First, the psychological factors of suicidal ideation were higher in the victimized group than school violence. Second, there was a significant difference in the relationship between emotional - social isolation and school violence experience. Third, there was a significant difference in the relationship between experience of suicide ideation and depression as well as anxiety of emotional - social isolation with psychological maladjustment. In conclusion, we plan to find ways to stabilize the multicultural society by providing prevention and protection measures against school violence.

• Journal of Korea Artificial Intelligence Association
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• v.1 no.1
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• pp.1-6
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• 2023

This study developed models using decision forest, support vector machine, and logistic regression methods to predict and prevent suicidal ideation among Korean adolescents. The study sample consisted of 51,407 individuals after removing missing data from the raw data of the 18th (2022) Youth Health Behavior Survey conducted by the Korea Centers for Disease Control and Prevention. Analysis was performed using the MS Azure program with Two-Class Decision Forest, Two-Class Support Vector Machine, and Two-Class Logistic Regression. The results of the study showed that the decision forest model achieved an accuracy of 84.8% and an F1-score of 36.7%. The support vector machine model achieved an accuracy of 86.3% and an F1-score of 24.5%. The logistic regression model achieved an accuracy of 87.2% and an F1-score of 40.1%. Applying the logistic regression model with SMOTE to address data imbalance resulted in an accuracy of 81.7% and an F1-score of 57.7%. Although the accuracy slightly decreased, the recall, precision, and F1-score improved, demonstrating excellent performance. These findings have significant implications for the development of prediction models for suicidal ideation among Korean adolescents and can contribute to the prevention and improvement of youth suicide.

• 한국노년학
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• v.38 no.2
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• pp.271-290
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• 2018

The study aims to analyze the effects of socio-economic deprivation on suicidal ideation. The analysis data were used as a guide for Korea Welfare Panel Study 9. the frequency analysis, mean difference analysis, correlation analysis, and logistic regression were performed by SPSS programs. The results of analysis are as follows. First, The results of frequency analysis by deprivation type showed a high frequency of deprivation in the following order. Experience of not receiving a public pension, experience of being able to work but unemployed, experience of not being able to eat a balanced diet due to financial difficulties, and experience where you had nothing to eat but no more money to buy. Second, the average difference analysis shows that when a person does not have a spouse, the lower the academic background and the income level, the higher the likelihood of suicide. Third, regression analysis shows that the following deprivation patterns have a statistically significant effect on older adults' thoughts of suicide. Experience in which the respondents or their family could not go to hospital because they had no money, experience that move house because is back rent more than 2 months or can not pay rent, experience that they could not afford to buy food and eat well-balanced meals, experience of failing to pay your bills on time, experience of being able to work but not having a job, and experience in which financial difficulties left them short of food and no money to live. Based on such research results, some policy measures, such as the expanding management of medical care benefits cases, the improvement of elderly housing, residential conditions and the diet survey for the elderly, and the expansion of measures to support elderly people's tax rates, were proposed.

• Research in Community and Public Health Nursing
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• v.30 no.2
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• pp.161-173
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• 2019

Purpose: This study was conducted to develop and test a measurement of the suicidal protection(MSP) for high school students in Korea. Methods: Thirty-four preliminary items were initially developed based on literature review and focus group interviews. Those items were evaluated by experts for content validity with 31 items yielded. For testing validity and reliability of the measurement, data were collected from 330 high school students in Korea. Results: The item analysis selected 26 items. One item was deleted additionally through the primary exploratory factor analysis. The final exploratory factor analysis yielded 26 items in six factors such as fear of suicide, self-esteem, emotion regulation, support from others, support from family, and school life, explaining 66.6% of the total variance of the suicidal protection for high school students in Korea. Convergent validity and discriminant validity were supported by construct reliability, average variance extracted estimate, and standardized regression weight. MSP scores were positively associated with economic status, academic record and suicidal ideation. Also, criterion validity was supported through a significant correlation with the Reason for Living Inventory for Adolescent. The Cronbach's ${\alpha}$ reliability coefficient was .93 for the overall measurement and .72~.86 for the six factors. Conclusion: The results show that MSP may be valid and reliable for assessing suicidal protection of high school students.

• Journal of the Korean Society of School Health
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• v.32 no.2
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• pp.105-115
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• 2019

Purpose: The purpose of this study was to compare the mental health factors related to health risk behaviors between multicultural and monocultural adolescents. Methods: The study subjects were selected from the 2018 Korea Youth Risk Behavior Web-Based Survey Dataset. A total of 60,040 multicultural and monocultural adolescents were included in the analysis. A $x^2$ test and logistic regression were conducted, using SPSS 18.0, to compare the general characteristics, mental health, and health risk behaviors of the multicultural and monocultural adolescents. This process involved a complex sample design. Results: There was a significant difference in the rates of suicidal behaviors. Multicultural adolescents showed a significantly higher rate of suicidal ideation (8.6% vs. 8.5%, p=.004), suicidal plan (3.2% vs. 2.4%, p=.004), and suicidal attempt (5.0% vs 3.1%, p=.04) than monocultural adolescents. Perceived stress had a significant impact only on monocultural adolescents. Monocultural adolescents with high levels of perceived stress were at a greater risk of drinking (high stress=reference; low stress OR=0.91, p=.025) and smoking (high stress=reference; low stress OR=0.90, p=.029) than those with low stress. Multicultural adolescents who had made suicide attempts were at a higher risk of drinking (multicultural OR=7.879, p<.001; monocultural OR=2.481, p<.001) and smoking (multicultural OR=4.011, p=.015; monocultural OR=2.800, p<.001) than monocultural adolescents. Conclusion: To implement an effective smoking and drinking prevention program, it is necessary to consider how we can reduce the risk factors. Stress management is important for monocultural adolescents and a proactive suicide-screening program and a suicide prevention program should be included in the program for both multicultural and monocultural adolescents.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.15 no.2
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• pp.168-177
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• 2004

Objectives : This study was done to develop Korean form of Reynolds' SIQ-JR(Suicidal Ideational Questionnaire-Junior). Through this study we evaluated reliability and validity of Korean form SIQ-JR. Methods : Subjects were 1,160 middle and high school students and 114 adolescent psychiatric patients. SIQ-JR and 8 self-reporting scales highly related with suicidal ideation and suicide behaviors were applied to them. Results : In reliability aspect of Korean form of SIQ-JR, internal consistency, test-retest reliability and item-total correlation were statistically significant results. In factor analysis, concerning about other person was extracted as a indepenedent factor. This results reflect our cultural characteristics. There were statistical differences of SIQ-JR scores in groups by sex and age. Clinical group showed significantly(P<0.01) higher scores than general population. Among the 8 suicidal relating scales, depression(r=0.42), aggression(r=0.36), trait anxiety(r=0.35), and anger-in(r=0.31) were highly related with suicidal ideation but impulsivity and hopelessness were not significantly related with suicidal ideation. Conclusion : Korean form of SIQ-JR was useful instrument in reliability and validity. We hope that this instrument widely used in school mental health, community psychiatry and clinical setting for screening tool.

• Journal of Industrial Convergence
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• v.19 no.1
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• pp.109-116
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• 2021

The purpose of this study was to determine the effects of asthma, allergic rhinitis, atopic dermatitis, and high intensity exercise on depressive symptoms and suicidal ideation in adolescents. This is a secondary data analysis study using 15th Korean Children and Youth Panel Survey. Data analysis was performed by chi-square and logistic regression analysis using SPSS 22.0. As a result, there were differences in allergic diseases, high-intensity exercise, smoking experience, and drinking experience in both depressive symptoms and suicidal ideation. After adjusting for smoking experience and alcohol experience, asthma, allergic rhinitis, and atopic dermatitis were influencing factor for depression symptoms(OR:1.16, 95% CI:1.07-1.26; OR:1.16, 95% CI:1.11-1.21; OR:1.17, 95% CI:1.11-1.23) and for suicidal ideation(OR:1.32, 95% CI:1.20-1.47; OR:1.22, 95% CI:1.15-1.29; OR:1.21, 95% CI:1.14-1.29). However, high intensity exercise had decreased depressive symptoms and suicidal ideation(OR:0.90, 95% CI:0.86-0.94; OR:0.85, 95% CI:0.80-0.90). As a result of this study, it was found that allergic diseases and high-intensity exercise had a great effect on mental health in adolescents, and we may use it as basic data for prevention and research related to the mental health of adolescent.