• Journal of the Korean Society of School Health
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• v.28 no.2
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• pp.99-110
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• 2015

Purpose: This study aims to investigate the association between suicidal thoughts and the co-occurrence of alcohol, tobacco, and drug use among adolescents. Methods: This study used the data of the Korea Youth Risk Behavior Web-based Survey from 2008 through 2014. The subjects of this study were 517,866 students, in total (Male 266,500, Female 251,366). Frequency analysis was conducted on the data about the subjects' general characteristics and their experience of smoking, drinking, and drug use. The relationship between suicidal thoughts and the co-occurrence of alcohol, tobacco, and drug use was analyzed through ${\chi}^2-test$ and logistic regression. The analyses were done using SAS 9.4. Results: According to the study, adolescents who used alcohol, cigarettes, and drugs at the same time engaged in suicidal ideation 3.69 times more than their peers who didn't use such substances (95% CI: 3.40~4.00, p<.001). Also, adolescents who used only tobacco, only alcohol, and only drugs engaged in suicidal ideation 1.49 times (95% CI: 1.43~1.56, p<.001), 1.28 times (95% CI: 1.26~1.31, p<.001) and 2.34 times (95% CI: 2.04~2.69, p<.001) more than the students who didn't use any substances, respectively. Conclusion: Adolescents' suicidal ideation and the co-occurrence of alcohol, tobacco, and drug use had a statistically significant relationship.

• Journal of agricultural medicine and community health
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• v.42 no.3
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• pp.145-154
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• 2017

Objectives: This study used data of urban and rural elderly living alone to compare the general characteristics of the elderly who have had suicidal ideation, and to investigate the suicidal ideation of urban-rural elderly with varying degrees of emotional support status, health status, and health behavior. Methods and materials: The research participants included 2,750 elderly aged 65 or above, of which 1,487 were from dong unit and 1,263 were from eup myeon units according to the raw data of 2011 Survey on Elderly Status. All collected data were analyzed using cross tabulation of SPSSWIN(ver 21.0) program and multivariate logistic regression. Results: The results were as follows. First, the factors that influenced the suicidal ideation of urban and rural elderly living alone included degree of depression, experience of abuse, and nutritional management status. Second, the suicidal ideation of urban elderly living alone was affected by the emotional support of their children who live apart and their grandchildren. Third, the suicidal ideation of rural elderly living alone was affected by the emotional support of their kin (including siblings).

• Journal of the Korean Society of School Health
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• v.31 no.3
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• pp.167-177
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• 2018

Purpose: This study examined the factors that affect suicidal ideation among Korean adolescents according to their family type. Methods: The data of the 2017 Korea Youth Risk Behavior Web-based Survey was used in this study. Out of 62,276, a total of 60,077 adolescents (51,367 adolescents from two-parent families and 8,710 adolescents from single-parent families) were included in the analysis. Results: This study demonstrated that the level of suicidal ideation of the adolescents in single-parent families was significantly higher than that of the adolescents in two-parent families. The factors that affect suicidal ideation among the two-parent family adolescents were gender, grade, economic status, academic performance, smoking, drinking, physical activity, subjective health status, subjective body image, subjective happiness, stress, and depression. The factors that affect suicidal ideation among the single-parent family adolescents included gender, grade, smoking, subjective health status, subjective happiness, stress and depression. Conclusion: Single-parent family adolescents are likely to have a higher level of suicidal ideation along with higher levels of depression and stress and lower levels of subjective health and happiness, compared to single-parent family adolescents. For this higher-risk group of suicidal ideation, more thoughtful attentions and proactive policies are needed to manage their mental health and stress in school and family situations.

• Nutrition Research and Practice
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• v.16 no.2
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• pp.194-204
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• 2022

BACKGROUND/OBJECTIVES: Sugar-sweetened beverages (SSBs) are regarded as modifiable risk factors for mental health in several populations. Although the consumption of SSBs is steadily increasing in Korea, there is scant evidence regarding the impact of SSB consumption on depression and suicidal ideation. The aim of this study was to investigate the association of SSB consumption with depression and suicidal ideation among adults in Korea. SUBJECTS/METHODS: We used the data for 5,465 participants (2,170 men and 3,295 women) aged ≥ 20 years from the 2014 and 2016 Korea National Health and Nutrition Examination Survey. The subjects were divided into four groups according to SSB consumption using a food frequency questionnaire. Logistic regression analyses were conducted to examine the association of SSB consumption with depression and suicidal ideation, adjusting for sociodemographic, health behavior, and dietary variables. RESULTS: Participants consuming ≥ 1 SSB/day had a significantly higher risk of depression (odds ratio [OR], 1.54; 95% confidence interval [CI], 1.08-2.18; P < 0.001) and suicidal ideation (OR, 2.20; 95% CI, 1.13-4.28; P < 0.001) compared with those in the non-SSB group after adjusting for potential confounding factors. CONCLUSIONS: Our results suggest that SSB consumption is positively associated with depression and suicidal ideation in Korean adults.

• Anxiety and mood
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• v.10 no.1
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• pp.24-29
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• 2014

Objectives : This study aimed to investigate the associations between physical disorders and prevalent/incident suicidal ideation in a community dwelling older population aged 65 years or over. Methods : 1204 people aged 65 years or over evaluated at baseline. Suicidal ideation was identified using the questions from the community version of the Geriatric Mental State Schedule ("GMS B3"). Reported physical disorders covering 11 common and generally chronic health problems were ascertained. Covariates included were depression, age, gender, years of education, accommodation status, past occupation, and current occupation. Of 1066 without suicidal ideation at baseline, 805 (76%) were followed 2 years later, and incident suicidal ideation was evaluated. Results : Prevalent suicidal ideation was significantly associated with 4 of 11 physical disorders: eyesight problems, persistent cough, heart disease and paralysis or weakness in one leg or arm. Incident suicidal ideation was associated with 3 physical disorders: asthma, high blood pressure and paralysis or weakness in one leg or arm. Both prevalent and incident suicidal ideation were significantly associated with increased number of physical disorders. Conclusions : Certain physical disorders were comorbid and precipitating factors of suicidal ideation in elders. And appropriate intervention and treatment of physical disorders might prevent suicidal ideation in elderly.

• Journal of the Korea Convergence Society
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• v.12 no.11
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• pp.487-499
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• 2021

This study identifies factors related to suicidal ideation such as demographics, health behaviors and subjective perceptions of high school students. This study analysis using the chi-square test and multiple logistic regression to find out the factors related to suicidal ideation using the 2020 youth online health pattern survey of 25,987 Korean high school students. Sociodemographic factors that affected suicidal ideation in these subjects included grade, gender, and housing type. The health behavior characteristics were experiences with drinking, smoking, sex, and drug misuse. Finally, the subjective perception characteristics included health status, happiness status, loneliness, stress level, and depression. Therefore, it is expected that will be used as basic data for strategies to prevent suicide among high school students in Korea in the covid-19 environment.

• Korean Journal of Biological Psychiatry
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• v.11 no.2
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• pp.110-116
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• 2004

Objectives:Recently, polymorphisms of several serotonin genes have been suggested to be associated with suicide, but the results are still unclear. We examined whether the T102C polymorphisms of the serotonin 2A receptor gene and the G861C polymorphisms of the serotonin 1B receptor gene were associated with suicidal behavior using drug intoxication. Methods:The subjects were 52 patients who visited emergency room with suicidal behaviors. Fifty controls were selected from healthy volunteers matched for sex and age to the suicide subjects. The polymorphisms were analyzed with TaqMan$^{(R)}$ assay using primers based on previous studies. Results:The T102C polymorphism of the serotonin 2A receptor gene showed no significant difference between the suicidal attempters and controls in both genotype and allele frequency analyses(p=0.179 and p=0.422, respectively). There was no statistically significant difference between the suicidal attempters and the controls in the G861C polymorphism of the serotonin 1B receptor gene and any significant effect of the genotype distributions or the allele frequencies was not observed(p=0.092 and p=0.987, respectively). Conclusion:These findings suggest that the T102C polymorphism in serotonin 2A receptor gene and the G861C polymorphism in serotonin 1B receptor gene are not related to the susceptibility to suicide attempts using drugs. To clarify the genetic influences of the serotonergic system on suicidal behavior, the polymorphisms of other candidate genes in the serotonergic system should be studied with larger numbers of subjects.

• 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.

• Korean Journal of Psychosomatic Medicine
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• v.30 no.1
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• pp.46-53
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• 2022

Objectives : This study aimed to assess the possible association of dental pain with suicidal ideation among adolescents by analysing data from the 2018 Korean Youth Risk Behavior Survey, a nationwide online survey. Methods : Of 62,823 adolescent middle and high school students in Korea, 60,040 participants were selected for analysis, after excluding cases with missing values. Participants were given a questionnaire about their self-evaluation of health including dental pain and suicidal ideation. Logistic regression analysis demonstrated the relationships between dental pain and suicidal ideation after controlling for potential confounding factors. Results : The proportion of Korean adolescents reporting suicidal ideation was 13.3%. The proportion of adolescents who experienced dental pain was 23.4%. Compared to adolescents who did not report dental pain, adolescents who reported experiencing dental pain were significantly more likely to experience suicidal ideation (OR=1.94, p<0.001). In two multivariate models, the relationships between dental pain and suicidal ideation (AOR=1.24, p<0.001) were statistically significant. Conclusions : Dental pain was associated with increased risk of suicidal ideation among Korean adolescents, even when controlling for sociodemographic factors and other health conditions. It is necessary to consider screening adolescent patients who present with dental pain for suicidal ideation.

• Research in Community and Public Health Nursing
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• v.33 no.2
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• pp.228-236
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• 2022

Purpose: The purpose of this study is to demonstrate the mediating effect of happiness in the relationship between internet addiction, depression and suicidal ideation among adolescents from multicultural families. Methods: 1,065 adolescents from multicultural families who participated in the 16th (2020) Adolescent Health Behavior Survey were selected as the final subjects for the study, and were analyzed with descriptive statistics, independent t-test, ANOVA, Pearson's correlation coefficient, and stepwise multiple regression. Results: There was a fully mediating effect of happiness in the relationship between internet addiction and suicidal ideation of the adolescents from multicultural families (F=6.65, p<.001). There was a partial mediating effect of happiness in the relationship between depression and suicidal ideation of the adolescents from multicultural families (F=10.01, p<.001). Conclusion: To mitigate the suicidal ideation of adolescents from multicultural families, it is necessary to develop and apply a positive psychological treatment program that enhances happiness for adolescents from multicultural families who are experiencing internet addiction and depression.