• Anxiety and mood
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• v.3 no.1
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• pp.26-31
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• 2007

Object : This study was designed to assess the change of heart rate variability (HRV) during stimulation test among the patients with major depressive disorder. Methods : 15 patients with major depressive disorder (MDD) and 15 normal controls were enrolled in this study. We sequentially measured HRV at baseline, during cognitive stimuli and emotional stimuli. Results : There are significant differences between the two groups in HRV index, TINN on baseline state and under cognitive stimulus. Conclusion : Stimulation protocol using HRV can be useful in estimating autonomic nervous function.

• Journal of Korean Society of Forest Science
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• v.101 no.4
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• pp.677-685
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• 2012

This study was conducted to evaluate the effect of forest environment and therapeutic program to the patients with major depressive disorder in antidepressant medication. The first group participated the four sessions of therapeutic program in the forest environment ("forest therapy"), the second group did in the program in a hospital environment, the third group did merely walking in the forest ("forest bath"), and the last group was controls. All the participants was diagnosed with major depressive disorder and had been taking antidepressant medication longer than 3 months. Depressive symptoms were measured by the Hamilton Rating Scales for Depression(HRSD), Montgomery-Asberg Depressin Rating Scales(MADRS), Beck Depression Inventory(BDI), and general health perception was measured by Short Form Health Survey Questionnaire(SF-36). Heart rate variability(HRV) were also examined to observe the physiological parameters before and after the program. In the results, HRSD score of forest program group was significantly lower than controls after the program. MADRS score of forest therapy group and hospital program group was also significantly lower than controls after 4 sessions of the program. The remission rate defined as below 7 points in HRSD was higher in the forest therapy group, hospital program group, forest bath group, and controls in order. These results reveals that the therapeutic program performed in forest environment may improve unremitted depressive symptoms of patients with major depressive disorder. Although not significant, the forest therapy program showed better outcome than hosptial program and forest bath.

• Journal of Industrial Convergence
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• v.21 no.3
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• pp.99-106
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• 2023

The purpose of this study was to identify the factors affecting depression according to the causes of suicidal ideation. The data used the 2021 Community Health Survey data. The participants of the study were 5,328 adults between the ages of 20 and 60 who responded that they had suicidal thoughts in the past year. For the analysis of the data, a composite sample analysis was performed using the SPSS 25.0 program. The results of the study are as follows. 1) In the economic difficulties group, age, gender, education level, economic activity, job change due to COVID-19, life satisfaction, subjective health status, stress, sleep time, and annual unmet medical care were the main factors related to depression. 2) In the interpersonal problem group, age, gender, education level, economic activity, life satisfaction, subjective health status, smoking, drinking, stress, and sleeping time were the main factors associated with depression. 3) In the disease and disability group, age, marital status, education level, life satisfaction, smoking, stress, sleep time, and annual unmet medical care were the main influencing factors of depression. Therefore, in order to reduce the rate of suicide and prevent depression, it is necessary to establish various strategies according to the causes of suicidal ideation and the influencing factors of depression.

• Sleep Medicine and Psychophysiology
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• v.19 no.2
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• pp.84-88
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• 2012

Introduction: The objective of the present study was to investigate the independent effects of major depressive disorder (MDD) and insomnia on somatization, respectively. Methods: A total of 181 participants (73 males and 108 females ; mean age $41.59{\pm}8.92$) without serious medical problem were recruited from a community and a psychiatric clinic in Republic of Korea. Subjects were divided into 4 groups based on the Structured Clinical Interview for DSM-IV axis I disorder (SCID-IV) and sleep questionnaire : 1) normal controls (n=127), 2) primary insomnia (n=11), 3) MDD without insomnia (n=14), and 4) MDD with insomnia (n=29). All participants were requested to complete the somatization subscores of the Symptom Checklist-90-Revised (SCL-90-R). Results: There were significant between-group differences in somatization score (F=25.30, p<0.001). Subjects with both MDD and insomnia showed higher somatization score compared to normal control (p<0.001), subjects with primary insomnia (p=0.01), or MDD subjects without insomnia (p<0.001). Subjects with primary insomnia had higher somatization score than normal controls (p<0.01), while there was no significant difference between MDD subjects without insomnia and normal controls. In multiple regression, presence of insomnia predicted higher somatization score (beta=0.44, p<0.001), while there was only non-significant association between MDD and somatization (beta=0.14, p=0.08). Conclusion: In the current study, insomnia was associated with somatization independently from major depression. Subjects with primary insomnia showed higher somatization. Within MDD patients, presence of insomnia was related to higher somatization. Our finding suggests that insomnia may partly mediate the relationship between depression and somatization.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.11
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• pp.7273-7284
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• 2015

The purpose of this study was to investigate the effect size of non-pharmacological intervention applied to patients with anxiety disorder and to provide information about evidence-based intervention. Twenty three studies were selected for meta-analysis through a systematic review of domestic studies. We searched journal articles published in Korea up to May, 2015 using the key words "Anxiety Disorders (MeSH)" and "Treatment or Intervention". Meta-analysis was performed using a random effects model, and the effect sizes on each of anxiety and depression were calculated. The effect size for anxiety of non-pharmacological intervention in this study was Hedges' g=1.693 (95% CI; 1.267-2.120), indicating a large effect size. The effect size for depression was Hedges's g=1.571 (95% CI; 0.481-2.661), indicating a large effect size. It is significant that this study systematically synthesized the study results for non-pharmacological intervention effects applied to patients with anxiety disorders in Korea. It also established a basis that can be applied to nursing intervention.

• Korean Journal of Psychosomatic Medicine
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• v.31 no.2
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• pp.118-124
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• 2023

Objectives : Depressive disorder and anxiety disorder frequently co-occur, even at sub-threshold level. This study aims to identify network structure of co-morbid depression and anxiety at symptom level in nonclinical population and to reveal the central symptoms and bridge symptoms of the co-morbidity. Methods : This study was based on 2022 Asan Youth Mental Health Screening. Patient health questionnaire (PHQ-9) and Generalized anxiety disorder scale (GAD-7) were used to assess depressive and anxiety symptoms of 810 young adult participants from community sample. Network structure of co-morbid depressive and anxiety symptoms was estimated by Isingfit model. Results : Depressed mood, Restlessness and Nervousness were the most central symptoms in the network. Bridge symptoms between anxiety and depression were Restlessness and Irritability. Conclusions : This study revealed key central symptoms and bridge symptoms of co-morbid depression and anxiety in nonclinical population and provided potential insight for treatment targets to reduce co-morbidity.

• Korean Journal of Biological Psychiatry
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• v.15 no.2
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• pp.92-100
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• 2008

Objectives : The purpose of this study was to investigate 1) the neuropsychological deficits with major depressive disorder(MDD) in depressed state and 2) the changes of neuropsychological dysfunctions during depressed episodes and remitted periods in the MDD group. Methods : 12 patients with MDD and 70 normal controls who were diagnosed and classified by DSM-IV and SCID-IV interview participated in this study. The psychopathology was measured using the Hamilton rating scale for depression(HAM-D) and Brief Psychiatric Rating Scale(BPRS). The memory function, executive function, and sustained attention were measured by a trained psychologist using the Korean version of Memory Assessment Scale(K-MAS), Wisconsin Card Sorting Test(WCST), and Vigilance(VIG) and Cognitrone (COG) in Vienna Test System. After 6 weeks of treatment, we retested the cognitive tests in order to measure the cognitive functions in remitted states. Results : Patients with MDD achieved significantly lower score in sentence immediately recall, verbal memory score and total memory score of the K-MAS, total errors of the WCST, response time of Vigilance and response time at "Yes" response of Cognitrone than normal controls at baseline. After 6 weeks of medication, the psychiatric symptoms in the patient group were attenuated, and most of the neuropsychological functions including attention, memory, and frontal/executive function were improved except for response time of Cognitrone. Conclusions : This study provides evidence for distinct neuropsychological deficits in patients with MDD on their depressed states and remitted periods. The impairment on response time remains after remission, and this would be a trait marker of major depressive disorder.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.5 no.1
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• pp.12-27
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• 1994

Until recently there were arguments on the existence and the definition of childhood depression. In DSM-III(1980) childhood depression was accepted as the formal psychiatric disorder in childhood. As the diagnostic criteria for childhood depression is less clearly defined than those for other psychiatric disorders as well as prominent age-related variations in depression symptomatology, informations from various sources are very important in accurate diagnosis of childhood depression. Present study reviewed various assessment methods such as self-report questionnaires, interviews, behavior rating scales, structured tests and projective techniques with discussion on the merits and limitations of each method. Also several issues on the reliability and the validity of assessment techniques for childhood depression were discussed.

• 한국노년학
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• v.40 no.3
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• pp.543-563
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• 2020

As people age and their physical functions are declined, they stay longer in the home, thus being more affected by the home environment. Many studies have shown the association between the home environment and health. However, little is known about the effect of the home environment on disability and depression of older people with functional limitation. This study, therefore, aimed to examine the moderating effect of the home environment on the pathway between walking limitation and instrumental activity of daily living(IADL) disability, and the relationship between IADL disability and depression. We performed logistic regression and multiple linear regression analyses with data on 3,027 participants from the 2018 Seoul Aging Survey. As results, first, older people who lived home with poor conditions showed a higher risk of walking limitation(OR=1.487, 95% CI: 1.250 - 1.770), IADL disability(OR=1.594, 95% CI: 1.303 - 1.949), and depression(OR=1.943, 95% CI: 1.553 - 2.430). Second, the home environment moderated the relationship between walking limitation and IADL disability. Older people with walking limitation who lived in poor housing condition experienced more IADL disability than others. Third, after controlling for walking limitation, the home environment had significant moderating effect on the relationship between IADL disability and depression. Elderly with IADL disability living in poor home experienced higher risk of depression. Based on these results, the study suggests the necessity of home modification intervention targeting functional limitation of older adults as strategy for preventing disability and depression, and enabling aging in place.

• 재활복지
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• v.21 no.3
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• pp.1-22
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• 2017

Although not many older Korean parents who take care of children with intellectual disabilities have been reported depression due to care-giving related stresses, little is known about how they could be protected from this. This study examines whether satisfaction with family relationships moderate the relationships between time demands, caregiving stress, and depression of older parents who take care of children with intellectual disabilities. The analyses were conducted based on data from the Korean National Survey on Individuals with Developmental Disabilities and their Families of 2011, and only a total of 276 parents, aged over 60 were examined. Multiple regression analysis shows that older parents with higher level of satisfaction with family relationships were less likely to be influenced by time demands of care-giving. This indicates that satisfaction with family relationships could buffer the relationships between time demands of care-giving, and depression. This finding suggests that satisfaction with family relationships is a protective factor, buffering the negative effects of time demands of care-giving and depression. This supports 'socio-emotional selectivity theory' which family relationships are important to older people. Therefore, it is highly recommended to develop practical intervention that can improve the level of satisfaction of family relationship of the older parents, and to make policy and institutional supplementation.