• The Journal of Korean Society for School & Community Health Education
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• v.22 no.2
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• pp.1-14
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• 2021

Objectives: The study aimed to analyze the effects of household financial difficulties caused by COVID-19 (2019 coronavirus disease) on suicidal tendencies of adolescents. Methods: We selected 54,948 middle and high school students who were surveyed based on the Korean Youth Risk Behavior Web-based Survey 2020. To analyze the data, we used the STATA 16.0 program to conduct propensity score matching (PSM). Results: After controlling for selection effects by using PSM, the household financial difficulties caused by COVID-19 maintained a significant predictive effect on increasing suicidal ideation, suicide attempts, and decreasing tendency in hospital-treated after suicide attempts. However, depressive symptoms and suicide plan did not show a significant correlation with household financial difficulties associated with COVID-19. Conclusions: It was found that the rate of suicidal ideation and suicide attempts among adolescents who experienced a household financial difficulties due to COVID-19. Therefore, It can provide empirical evidence for estimating the impact of COVID-19 on adolescent suicide rates.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.11
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• pp.5752-5761
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• 2013

This study was performed to propose the developmental direction of the elderly suicide study by analyzing the trend of study in elderly suicide. A literature search was conducted using RISS, KISS, Nanet. A total of 184 research articles which were published on elderly suicide in Korea from 1996 to 2013 were analyzed with structured analysis forms. For statistical analysis, frequency and percentage were used with EXCEL program. As a results, a study on elderly suicide in the social welfare sector was actively and a survey of general elderly proportion of the study was high. In addition, most concepts of research were associated with suicidal ideation, depression, social support, and stress of the elderly. Therefore, existing in previous studies classified as high-risk elderly people living alone, poor elderly, a man who attempted suicide risk in elderly subjects research through a variety of research methods will be made.

• The Korean Journal of Community Living Science
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• v.27 no.4
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• pp.831-850
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• 2016

The ratio of suicide among the elderly in Korea has nearly tripled within the last 20 years. With this in mind, this study examined the effects of social exclusion on depression and suicidal ideation among the elderly living in elderly-only households with a focus on gender differences. Social exclusion is composed of economic, health, housing, education, social participation, and relational aspects. For this study, data were gathered from 527 participants aged 65 years and over. The statistical methods used for data analysis were descriptive statistics, chi-square test, t-test, and hierarchical regression analysis with the SPSS Win 20.0 program. The results of this study are summarized as follows: First, more than 80% of the elderly experienced social exclusion. Women were shown to be more vulnerable than men in terms of housing exclusion, educational exclusion, health exclusion, and multiple exclusion, whereas men were more vulnerable than women in terms of social participation exclusion. Second, social exclusion had significant effects on suicidal ideation among the Korean elderly. We also observed gender differences in the results. Regression analysis of suicidal ideation showed that relational exclusion had a significant effect on suicidal ideation in men, whereas health exclusion had a significant effect on suicidal ideation in women. Results of the study show that stronger social support networks and policies focusing on the elderly are needed in order to reduce elderly suicide in Korea.

• Health Policy and Management
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• v.23 no.4
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• pp.358-368
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• 2013

Background: There are some data to support the theory of a protective effect of parenthood against suicide, as proposed by Durkheim in 1897. We conducted this study to examine the relationship between children characteristics and suicidal ideation among Korean married women. Methods: The data were obtained from the Korean National Health and Nutrition Examination Surveys IV, conducted in 2007-2009, respectively (3,202 married women aged 20-49 years). The children characteristics are the age of the youngest child and the number of children living with subject. Data were analyzed by using logistic regression with SAS 9.2. Results: The risk for suicidal ideation was higher among married women having a young child (aged <7 years). It had strong effect on suicidal ideation in non-employee subjects. The odds ratio for suicidal ideation of women having a youngest child aged 2-3 years compared with reference groups was 1.673 with statistical significance. But the association of suicidal ideation with number of children shows insignificant. Conslusion: The findings suggest a different result with the theory, the protective effect of being a parent of young child on suicide risk for women, first suggested by Durkheim and supported by previous studies and the need for further prospective investigation that lead to policies according children characteristics aimed at improving married women's life.

• The Journal of the Korea Contents Association
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• v.19 no.6
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• pp.644-654
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• 2019

The purpose of this study was to investigate the effects of depression, self-esteem and daily life ability on suicidal ideation in elderly people with chronic illness. The subjects were 170 outpatients and inpatients in a general hospital in D city. After conducting questionnaires for data collection, t-test, ANOVA and multiple regression analysis were performed and analyzed using SPSS 12.0 / win program. The results showed that suicidal ideation was influenced by gender, health status, chronic disease diagnosis, and experience of suicide attempt, with a positive correlation with depression and a negative correlation with daily life ability. The suicide attempt experience, depression, self-esteem and daily living ability showed 50.8% explanatory power against suicidal ideation. In order to reduce suicidal ideation, it is necessary to reduce suicidal ideation of elderly people with chronic diseases by managing an intervention program that reduces depression and improves daily life ability.

• The Journal of Information Systems
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• v.28 no.3
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• pp.249-276
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• 2019

Purpose The purpose of this study is to develop a prediction model and decision rules for the elderly's suicidal ideation based on the Korean Welfare Panel survey data. By utilizing this data, we obtained many decision rules to predict the elderly's suicide ideation. Design/methodology/approach This study used classification analysis to derive decision rules to predict on the basis of decision tree technique. Weka 3.8 is used as the data mining tool in this study. The decision tree algorithm uses J48, also known as C4.5. In addition, 66.6% of the total data was divided into learning data and verification data. We considered all possible variables based on previous studies in predicting suicidal ideation of the elderly. Finally, 99 variables including the target variable were used. Classification analysis was performed by introducing sampling technique through backward elimination and data balancing. Findings As a result, there were significant differences between the data sets. The selected data sets have different, various decision tree and several rules. Based on the decision tree method, we derived the rules for suicide prevention. The decision tree derives not only the rules for the suicidal ideation of the depressed group, but also the rules for the suicidal ideation of the non-depressed group. In addition, in developing the predictive model, the problem of over-fitting due to the data imbalance phenomenon was directly identified through the application of data balancing. We could conclude that it is necessary to balance the data on the target variables in order to perform the correct classification analysis without over-fitting. In addition, although data balancing is applied, it is shown that performance is not inferior in prediction rate when compared with a biased prediction model.

• 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.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.8 no.5
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• pp.269-277
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• 2018

As multicultural population has been drastically increasing over the decade in Korea, their quality of life needs to be studied. This study focuses on multicultural youths' suicidal issue in Korea. Suicide is one of the most obvious indicators to show the current status of mental health. Unfortunately, suicide attempt rate of multicultural youths was two-times more than that of non-multicultural youths in Korea during the past two years(2014-15). Through the literature review in Korea as well as the United States, this study explores the related variables to their suicide attempt. Research result says that multicultural youth's suicide is related to a variety of variables, including physical, psychological, educational, socio-economical, and cultural variables. Research implications are as follows: First, these variables can be utilized as predictive or protective factors to prevent their suicide. Second, theoretical framework for comprehensively understanding their suicidal issues needs to be developed. Third, both emergent and normal suicidal interventions need to be provided for multicultural youth in Korea.

• Journal of Preventive Medicine and Public Health
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• v.48 no.2
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• pp.94-104
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• 2015

Objectives: Mental health disorders and suicide are an important and growing public health concern in Korea. Evidence has shown that both globally and in Korea, obesity is associated with an increased risk of developing some psychiatric disorders. Therefore, we examined the association between distorted body weight perception (BWP) and suicidal ideation. Methods: Data were obtained from the 2007-2012 Korea National Health and Nutritional Evaluation Survey (KNHANES), an annual cross-sectional nationwide survey that included 14 276 men and 19 428 women. Multiple logistic regression analyses were conducted to investigate the associations between nine BWP categories, which combined body image (BI) and body mass index (BMI) categories, and suicidal ideation. Moreover, the fitness of our models was verified using the Akaike information criterion. Results: Consistent with previous studies, suicidal ideation was associated with marital status, household income, education level, and perceived health status in both genders. Only women were significantly more likely to have distorted BWP; there was no relationship among men. In category B1 (low BMI and normal BI), women (odds ratio [OR], 2.25; 95% confidence interval [CI], 1.48 to 3.42) were more likely to express suicidal ideation than women in category B2 (normal BMI and normal BI) were. Women in overweight BWP category C2 (normal BMI and fat BI) also had an increased OR for suicidal ideation (OR, 2.25; 95% CI, 1.48 to 3.42). Those in normal BWP categories were not likely to have suicidal ideation. Among women in the underweight BWP categories, only the OR for those in category A2 (normal BMI and thin BI) was significant (OR, 1.34; 95% CI, 1.13 to 1.59). Conclusions: Distorted BWP should be considered an important factor in the prevention of suicide and for the improvement of mental health among Korean adults, especially Korean women with distorted BWPs.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.5
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• pp.60-70
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• 2021

The purpose of this study was to promote an understanding of suicidal ideation and identify the factors that influence suicide ideation according to the life cycle of Korean adults. This study was a secondary analysis study using the Korea Health Panel 2016 data. Among adults over 19 years of age, 14,538 people with no missing values in suicidal ideation and influencing factors were classified into young adults (19-39 years old), middle-aged adults (40-64 years old), and the elderly (65 years or over). The data were analyzed by multiple logistic regression. The results showed that 2.9% (108 people) of young adults, 3.2% (181 people) of middle-aged adults, and 3.7% (80 people) of the elderly had suicide ideation over the past year. Factors influencing suicidal ideation by life cycle were anxiety, depression, drug use and quality of life for young adults, subjective health status, stress, anxiety, depression, drug use and quality of life for middle-aged adults. The factors affecting the elderly were body mass index, stress, anxiety, depression, and quality of life. Therefore, factors influencing suicidal ideation should be considered as a major factor for screening risk groups according to the life cycle, and differentiated intervention programs should be developed and provided to prevent and manage suicide in risk groups.