• Journal of Korean Academy of Nursing
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• v.52 no.4
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• pp.464-475
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• 2022

Purpose: This study aimed to identify the mediating effects of depression amid the influence of fear and social distancing arising from Coronavirus disease 2019 (COVID-19) in Korean women's suicidal ideation. Methods: A descriptive correlation study was conducted. Study participants, recruited by Hankook Research from March 2 to March 5, 2021, included 300 women aged 19 to 49 living in South Korea, and 100 people were randomly allocated and enlisted for each age group out of 700,000 Hankook Research Panels recruited in advance from 17 cities and provinces nationwide. Data were collected through a self-reported questionnaire and analyzed using Pearson's correlation coefficient and Hayes' Process Macro Model 4 with 95% bias-corrected bootstrap confidence interval via SPSS statistics 27.0. Results: Suicidal ideation was significantly correlated with fear of COVID-19 (r = .16, p = .006) and depression (r = .65, p < .001). The mediation effect of depression in the relationship between the fear of COVID-19 and suicidal ideation was found to be significant (B = 0.40, boot 95% CI: 0.21~0.61). However, social distancing did not significantly affect suicidal ideation via depression (B = - 0.79, boot 95% CI: - 1.94~0.26). Conclusion: It is necessary to develop and apply interventions to prevent depression and suicidal behaviors by continuously observing and reducing the negative psychological responses caused by COVID-19.

• Sleep Medicine and Psychophysiology
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• v.23 no.1
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• pp.5-9
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• 2016

Previous research has identified the biological, psychological, and social factors that confer an elevated risk for suicide. Evidence suggests that sleep disturbances are one of the risk factors that predict an increased risk for suicidal behaviors. Both sleep disorders and general sleep complaints are linked to higher levels of suicidal ideation and depression, as well as increased rates of suicide and suicide attempts. The causal mechanism of this association is not clear. For example, it is not known if insomnia is an independent phenomenon that if interrupted could prevent the emergence of a mental disorder, or if insomnia is a symptom of another developing illness. Hypofrontality, HPA dysfunction, and an impaired serotonergic system are potential mechanisms underlying the association of sleep disturbances and suicidal behavior. Future research is necessary to examine the specific mechanism of this association between sleep and suicide, which may lead to an effective intervention and diminished suicide risk.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.34 no.2
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• pp.125-132
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• 2023

Objectives: This study investigated the relationship between suicidal behavior and the use of methylphenidate (MPH) or atomoxetine (ATX) in patients with attention deficit hyperactivity disorder (ADHD). Methods: The Preferred Reporting Items for Systematic Review and Meta-Analysis guidelines were used to conduct a meta-analysis. The Physiotherapy Evidence Database scale was used to score the quality of the studies. Results: Nine studies were included in this quantitative analysis. The analysis included 602864 patients with ADHD (521125 and 81739 patients were taking methylphenidate [MPH group] and atomoxetine [ATX group], respectively) and 19230 healthy controls. The overall estimates were in the order of the control, MPH, and ATX groups; however, no statistically significant between-group difference was observed in the incidence of events (p=0.553 for control vs. MPH; p=1.000 for control vs. ATX; p=1.000 for MPH vs. ATX). Conclusion: The rate of suicidal behavior was higher in the ADHD groups treated with MPH and ATX than in the control group. However, no statistically significant difference was observed between the ADHD groups treated with MPH and ATX, and the control group. Therefore, MPH and ATX did not increase suicidal behavior.

• The Korean Journal of Health Service Management
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• v.6 no.3
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• pp.29-38
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• 2012

The aim of this study was to examine the spouse effects on depressive symptom and suicidal thinking among the elderly aged 65 and over in Korea. The subjects selected from the database of the Fourth Korea National Health and Nutrition Examination Survey(KNHANES IV) conducted by Korea Centers for Disease Control and Prevention from 2007 to 2009. Those who were female, older, lower educated, or poorer were more likely to live alone than their counterparts respectively. The elderly living alone experienced depressive symptom as 2.0 times(OR=2.004, 95% CI=1.433, 2.803) as, and suicidal thinking as 1.6 times(OR=1.567, 95% CI=1.111, 2.211) as the elderly couples did, adjusting for socio-economic factor, health status factors, and health behaviors factors. As for the male subgroup, the elderly living alone experienced depressive symptom as 4.0 times(OR=3.997, 95% CI=2.066, 7.732) as, and suicidal thinking as 3.2 times(OR=3.181, 95% CI=1.535, 6.592) as the elderly couples did. On the other hands, there was no significant difference in depressive symptoms and suicidal thinking between the female elderly living alone and couples. The authors suggested policy interventions to promote the mental health of the male elderly living alone.

• The Journal of the Korea Contents Association
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• v.12 no.12
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• pp.261-268
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• 2012

This study investigates suicidal ideation and its associated factors by sex in adolescents, focusing health behaviors and health status. For this study, data of 931 adolescents(11-18years) from the Fifth Korean National Health and Nutrition Examination Survey(KNHANES V-1, 2010) were analyzed. Those who had activity limitation, depression, less exercise showed higher suicidal ideation. For male adolescents, those who were high school student compared with middle school showed lower suicidal ideation and had depression showed higher suicidal ideation. On the other hand, the risk factors of suicidal ideation for female adolescents were activity limitation, smoking experience, depression, less exercise. The development of suicide prevention program for adolescents requires different approaches for each sex.

• 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.

• Safety and Health at Work
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• v.12 no.1
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• pp.102-107
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• 2021

Background: This study was conducted to identify the association between sleep duration and suicidal ideation among farmers in Korea. Methods: We used Safety for Agricultural Injuries of Farmers cohort data collected from September 2015 to June 2018, which was an agricultural survey on the health and behaviors of adult farmers in Jeju island, Korea. Results: A total of 964 participants were included in the analysis, and 3.7% of them were identified with having suicidal ideation. The frequencies of average daily sleep duration of <6 h (short sleep), 6-8 h (normal sleep), and >8 h (long sleep) were 24.4%, 70%, and 5.6%, respectively. Multivariate analyses revealed that short sleep duration was significantly associated with suicidal ideation compared with normal sleep duration (odds ratio = 2.49, 95% confidence interval = 1.07-5.77). Conclusion: Our findings suggest that short sleep duration in farmers result in higher suicidal ideation. Because individuals who have suicidal ideation often commit suicide, careful monitoring is required to prevent suicide in farmers with short sleep duration.

• Journal of the Korean Society of School Health
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• v.35 no.3
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• pp.65-74
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• 2022

Purpose: The purpose of the study was to verify the degree of smoking behaviors including conventional cigarettes, electronic cigarettes, and dual use of conventional and electronic cigarettes among adolescents, and to explore associated intrapersonal and interpersonal factors of the three smoking behavior groups. Methods: The secondary data analysis was performed using the 17th 2021 Korea Youth Risk Behavior Survey. The types of smoking behaviors were grouped into conventional cigarettes, electronic cigarettes, and dual use for data analysis. Descriptive statistics and a χ² test were performed. Multinomial logistic regression analysis was conducted to identify factors associated with of the three smoking behavior groups. Results: Among the 54,848 adolescents, 3.6%, 1.2% and 6.2% were involved in conventional cigarettes, electronic cigarettes, and the dual use, respectively. The factors associated with the three types of smoking behaviors were depression, suicidal ideation, having a smoking mother, having smoking brothers or sisters, and having smoking friends. Recovery from fatigue by sleep was associated with the dual use of conventional and electronic cigarettes. Anxiety was associated with conventional cigarettes. Having a smoking father was associated with conventional cigarettes and dual use. Conclusion: A significant number of adolescents were involved in not only the use of conventional or electronic cigarettes, but also dual use of them. Adolescents who had depression, suicidal ideation, having a smoking friend, and having a smoking family member were more likely to be involved in the three types of smoking behaviors. Customized interventions to decrease smoking should be developed considering intrapersonal factors as well as interpersonal factors.

• Research in Community and Public Health Nursing
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• v.26 no.1
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• pp.52-60
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• 2015

Purpose: The study was performed in order to identify the relationship between health behaviors and Internet use among adolescents. Methods: The study used raw data from the Korean Youth Risk Behavior Web-Based Survey that was performed in 2012. Data of a total of 74,186 students were analyzed using SPSS/WIN 18. The data were analyzed using descriptive statistics, t-test, and Pearson's correlation. Results: Internet use and health behaviors were significantly related to gender, depression, suicidal intent, parents' educational level, cohabitation with parents at home, school location, and grade. There was a significant association between Internet use and health behaviors in adolescents. Conclusion: Health promotion and education programs need to consider factors found relevant in this study.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.1
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• pp.300-307
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• 2015

This study examined the effects of the youth home environment on violent behavior and suicidal thoughts. The survey was conducted from March 5, 2014 to July 02 on a juvenile male and female target group of 430 people subjects. Frequency analysis, factor analysis, reliability analysis, and multiple regression analysis were conducted using SPSS Win 18.0 with verification at the 5% significant level. The results of the study were as follows: First, the support of the father had a negative influence on violent behavior. Second, the support of both the father and mother, communication with the father and mother, and the mother's parenting attitude have a negative influence on suicidal thoughts. Third, the youth's violent behavior has a positive influence on the suicidal thoughts. This study provides essential data for making polices to resolve the youth crisis behaviors.