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Purpose@#This study investigated hand-washing practice among community-dwelling older adults during the coronavirus disease 2019 (COVID-19) pandemic and aimed to identify the impact of COVID-19-related concerns and depression on hand-washing practice. @*Methods@#This was a secondary analysis of data extracted from the 2020 Community Health Survey. The primary data were collected through self-reporting from August 10 to September 8, 2020 in a cross-sectional study. The subjects consisted of 1,350 adults aged 65 or older living in J Province who participated in the 2020 Community Health Survey. Results: The factors affecting hand-washing practice among older adults were male gender (β = –.18, p < .001), age (β = –.07, p = .001), no education (β = –.20, p < .001) and elementary, middle, and high school graduation (β = –.15, p < .001) compared to a college or higher education, poor health perception (β = –.13, p < .001), COVID-19-related concerns (β = .08, p = .005), and depression (β = –.07, p = .001). To summarize, the factors negatively affecting hand-washing practice included male gender, lower education level, poor health perception, and depression, while the factors positively associated with hand-washing practice included COVID-19-related concerns. @*Conclusion@#These findings show the importance of considering these multifaceted determinants when designing targeted interventions and educational programs aimed at promoting hand-washing among older adults. Additionally, based on the relationship between hand-washing practice and COVID-19-related concerns and depression, interventions that can alleviate mental problems along with providing proper education are required.
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Objective@#To investigate the relationship between reduced glutathione (GSH), a key molecule of the antioxidant defense system in the blood, and glutathione reductase (GR), which reduces oxidized glutathione (glutathione disulfide [GSSG]) to GSH and maintains the redox balance, with the prevalence of Alzheimer’s dementia and cognitive decline. @*Methods@#In all, 20 participants with Alzheimer’s dementia who completed the third follow-up clinical evaluation over 6 years were selected, and 20 participants with normal cognition were selected after age and sex matching. The GSH and GR concentrations were the independent variables. Clinical diagnosis and neurocognitive test scores were the dependent variables indicating cognitive status. @*Results@#The higher the level of GR, the greater the possibility of having normal cognition than of developing Alzheimer’s dementia. Additionally, the higher the level of GR, the higher the neurocognitive test scores. However, this association was not significant for GSH. After 6 years, the conversion rate from normal cognition to cognitive impairment was significantly higher in the lower 50th percentile of the GR group than in the upper 50th percentile. @*Conclusion@#The higher the GR, the lower the prevalence of Alzheimer’s dementia and incidence of cognitive impairment and the higher the cognitive test scores. Therefore, GR is a potential protective biomarker against Alzheimer’s dementia and cognitive decline.
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Objective@#This study explored the efficacy of group reminiscence therapy, incorporating traditional plays, for individuals with mild cognitive impairment (MCI) and dementia patients. @*Methods@#We provided 10 sessions of group reminiscence therapy to 25 MCI and dementia patients. We conducted assess-ments, both before and after the program, encompassing a range of tests, namely the Mini-Mental Status Examination (MMSE), Dysexecutive Questionnaire, Zarit Burden Interview (ZBI-K), Dementia Care Assessment Packet-Instrumental Activities of Daily Living, Geriatric Depression Scale (GDS-K), and Neuropsychiatric Inventory (NPI-K). @*Results@#Following the program, there was a significant improvement in MMSE scores for MCI patients (19.17 to 22.33, p=0.027). There was a significant improvement in NPI-K scores for dementia patients (8.05 to 3.74, p=0.006). There was a sig-nificant improvement in GDS-K scores for MCI patients (17.00 to 14.00, p=0.043). There was a significant improvement in ZBIK scores for dementia (28.53 to 17.68, p=0.001) and MCI patients (29.17 to 16.33, p=0.046). @*Conclusion@#Our study suggested that group reminiscence therapy based on traditional play might be effective in global cog-nition of MCI patients, neuropsychological symptoms of dementia patients, depression of MCI patients, and caregiver burden of all subjects.
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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.
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Objectives@#:Although subclinical depression symptoms are associated with suicidal idea, most research have focused on clinical depression such as major depressive disorder or dysthymia. The aim of this study is to investigate network structure of depressive symptom and to reveal which symptoms are associated with suicidal ideation. @*Methods@#:We used part of data from the seventh Korea National Health and Nutrition Examination Survey. Participants were between 19 and 65 years of age (N=8,741). Network analysis with Isingfit model is used to reveal network structure of depressive symptoms and most central symptom and edges assessed by patient health questionnaire (PHQ-9). @*Results@#:The most two central symptoms were psychomotor activity and suicidal ideation. The strongest edge was psychomotor activity-suicidal ideation. Suicidal ideation also has strong association with depressive mood and worthlessness. @*Conclusions@#:These results suggest that psychomotor activity and suicidal ideation can serve as treatment target for subclinical depression and psychomotor activity, worthlessness and depressed mood may be important factor for early intervention of suicidal ideation.
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Objectives@#:This study intends to assess the associations among perceived stigma at the time of infection, coping strategies adopted 12 months later and depressive and posttraumatic symptoms 24 months later in Middle Eastern Respiratory Syndrome (MERS) survivors. @*Methods@#:A nationwide cohort study was conducted on 63 survivors of 2015 MERS outbreak. Demographic data, illness severity of MERS, depression and posttraumatic stress symptoms, coping strategies and MERS-related stigma were collected 12 and 24 months after the MERS outbreak, respectively. @*Results@#:Higher levels of perceived stigma at the time of outbreak were associated with higher levels of dysfunctional coping strategies after 12 months (p=0.003) and more severe depressive (p=0.058) and posttraumatic stress symptoms (p=0.011) after 24 months. Moreover, higher levels of dysfunctional coping strategies after 12 months were significantly associated with more severe depressive (p=0.002) and posttraumatic stress symptoms (p<0.001) after 24 months. @*Conclusions@#:Social stigma against people who have contracted an emerging infectious disease can leave a negative impact on the mental health of the survivors in the long term. In case of novel pandemics in the future, promptrectification of stigma and promotion of adaptive coping strategies in survivors are needed.
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OBJECTIVES@#The aim of this study was to investigate the prevalence and risk factors of poor mental health in the general Korean population during the coronavirus disease 2019 (COVID-19) pandemic. @*METHODS@#This cross-sectional, population-based, online survey-based study was conducted from November 5 to 20, 2020 and included adults aged 20-49 years in Chungnam Province, Korea. A total of 549 adults were included. @*RESULTS@#In total, 18.8% of the participants had symptoms of depression, 10.6% had symptoms of anxiety, and 5.1% had a high level of perceived stress during the COVID-19 pandemic. Higher levels of stress (odds ratio [OR], 3.13; 95% confidence interval [CI], 1.13 to 8.67), anxiety (OR, 2.33; 95% CI, 1.09 to 4.49), and depression (OR, 3.00; 95% CI, 1.64 to 5.50) were found among never married, widowed, divorced, and separated people than among married/cohabiting/partnered participants. Participants who felt increased stress at home during the COVID-19 outbreak reported more depression (OR, 2.45; 95% CI, 1.49 to 4.05) and anxiety (OR, 2.42; 95% CI, 1.31 to 4.50). Women had higher risks of anxiety (OR, 1.97; 95% CI, 1.09 to 3.58) and stress (OR, 6.40; 95% CI, 2.30 to 17.85) than men. Participants with the highest household income were less likely to report symptoms of stress than those with the lowest household income (OR, 0.24; 95% CI, 0.06 to 0.96). @*CONCLUSIONS@#The participants in this study exhibited poor mental health index scores, suggesting that some people are at risk for mental health problems during the COVID-19 pandemic. Being married was independently and significantly associated with a lower likelihood of depression, anxiety, and stress.
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Objective@#: This study analyzed the risk factors in patients who developed distal junctional kyphosis (DJK) after posterior cervical fusion. @*Methods@#: We retrospectively analyzed the clinical and radiographic outcomes of 64 patients, aged ≥18 years (51 and 13 male and female patients, respectively), who underwent single-staged multilevel (3–6 levels) posterior cervical fusion surgery due to multiple cervical spondylotic myelopathy. The surgeries were performed by a single spinal surgeon between January 2012 and December 2017. Demographic data, clinical outcomes, and radiological results were collected. We divided the patients into a DJK group and a non-DJK group according to the presence of DJK and investigated the risk factors by comparing the differences between the two groups. @*Results@#: Of the 64 patients, 13 developed DJK. No significant differences in clinical results were observed between the two groups before and immediately after the surgery. At the final follow-up, a higher visual analog score for neck pain was observed in the DJK group compared to the non-DJK group (p<0.01). The DJK group had a significantly lower T1 slope and a significantly higher C2-7 sagittal vertical axis (SVA) before surgery compared to the non-DJK group (p=0.03 and p<0.01, respectively). Immediately after surgery, the difference between the two groups decreased and no significant difference was observed. However, at the last followup, a significantly higher C2-7 SVA was observed in the DJK group (p<0.01). At the last follow up, there is no discrepancy in T1S-CL. In multiple logistic regression analysis, preoperative higher C2-7 SVA and preoperative lower T1 slope were identified as independent risk factors (p=0.03 and p<0.01, respectively). As a result, it was confirmed that DJK occurred along the process of returning to preoperative values. @*Conclusion@#: DJK can be considered to be caused by cervical misalignment due to excessive change in the surgical site in patients with low T1 slope and high C2-7 SVA before surgery. This also affects the clinical outcome after surgery. It is recommended to refrain from excessive segmental lordosis changes during multilevel cervical post fusion surgery, especially in patients with a small preoperative T1 slope and a large SVA value.
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Objectives@#Demoralization, which results from the inability to cope, is characterized by hopelessness, helplessness, and loss of the meaning and purpose of life. Although demoralization is prevalent in patients with chronic illness, including cancer, a Korean version of the scale has not been developed and validated. Thus, we translated into Korean and validated a version of the Demoralization Scale-II (DS-II-Kr) for cancer patients. @*Methods@#This cross-sectional study recruited cancer patients and survivors who visited a mental health clinic in a cancer hospital. Internal consistency, test-retest reliability, and concurrent validity of DS-II-Kr were assessed. Additionally, the construct validity of two sub-factors was evaluated using confirmatory factor analysis. The optimal DS-II-Kr cut-off point was determined by logistic regression analysis based on the distress cut-off in the Hospital Anxiety-Depression Scale (HADS). @*Results@#This study included 105 participants. The mean and standard deviation for total DS-IIKr scores were 11.9 and 7.6, respectively. The scale demonstrated good internal consistency and test-retest reliability. Goodness-of-fit analysis was moderate for the Meaning and Purpose subscale, and a good fit was found for the Distress and Coping Ability subscale. The DS-II-Kr cut-off value based on HADS was 10 (≤10 vs. >10). @*Conclusion@#The DS-II-Kr is a useful tool for assessing demoralization in clinical and research settings. However, further studies are needed to confirm the optimal DS-II-Kr cut-off score. External validation in other populations is also needed.
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Objective@#The purpose of this study was to investigate the factors associated with the fear of coronavirus disease of 2019 (COVID-19) stigmatization in the elderly in Chungcheongnam-do, Korea. @*Methods@#This study used data of a survey on depression, loneliness, social support, and fear of COVID-19 of the elderly in a province of Korea in July to November, 2020. The sample consisted of 1,485 (female 1,117); mean age 78.3 (6.5) years old. We administered Korean version of the Geriatric Depression Scale-Short Form, 6-item De Jong Gierveld Loneliness Scale, Medical Outcome Study Social Support Survey and experience about COVID-19 infection or fear of stigmatization. Binary logistic regression analyses were performed for evaluating the association between fear of COVID-19 stigmatization and the factors; gender, education level, living with spouse, socioeconomic status, depression, loneliness, and social support. @*Results@#Socioeconomic status and loneliness are associated with the fear of COVID-19 disease stigmatization, and gender and socioeconomic status are associated with the fear of COVID-19 territorial stigmatization. @*Conclusion@#Gender, socioeconomic status and loneliness are the factors for COVID-19 stigmatization in the elderly in Chungcheongnam-do, Korea.
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Objectives@#:The characteristics of depressive symptoms in patients with cancer is different from those in control group. However, few research has focused on the association between depressive symptoms in cancer patients. The aim of this study was to compare the network structure of depressive symptoms between patients with cancer and normal control. @*Methods@#:This study was based on cohort data from Korea National Health and Nutrition Examination Survey in 2016-2018. The Patient health Quetionnaire-9 (PHQ-9) was used to assess depressive symptoms in 599 patients with cancer and 599 age-sex matched controls. We estimated network structure of depressive symptom using Isingfit model. @*Results@#:There was no significant difference of each PHQ-9 item score. There were strong associations be-tween symptoms were concentration problem-psychomotor activity, anhedonia-depressed mood, and depressed mood-suicidal ideation in both groups. Strength centrality of worthlessness was significantly higher in patients with cancer. @*Conclusions@#:These results suggest that worthless is associated with other depressive symptoms more tightly in patients with cancer. Worthless can serve as important treatment targets for intervention of depression in patients with cancer.
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Objectives@#:Dementia is one of the most distressing mental health problems in the older population. Caregivers also experienced physical, psychological, and emotional stress from taking care of dementia patients. So, we developed program for supporting dementia caregiver and evaluated its efficacy on reducing caregiver bur-den. @*Methods@#:We provided 5 sessions of dementia caregiver supporting program to 30 caregivers who were taking care of dementia patient in their home. Program was held in Cheonan Center for Alzheimer’s disease and other dementia that was established by Cheonan city government for supporting dementia patients and their caregivers. We evaluated caregiver burden using short Zarit burden inventory consisted of 12 items scoring 0 (no burden) to 4 (everyday burden) before and after program. We evaluated satisfaction of caregiver about program using satisfaction survey consisted of 10 items scoring 0 (very dissatisfy) to 4 (very satisfy) after program. @*Results@#:Mean age of caregiver was 61.9. 40.0% (n=12) of caregivers were spouse. 53.3% (n=16) of caregiv-ers were son or daughter. Caregiver burden that was estimated by short Zarit burden inventory were significantly decreased after program (p<0.001). When each item was compared, 4 items (7, 10, 11 and 12) were significantly decreased after program (p=0.036, p=0.018, p=0.01, p=0.024). All mean scores of 10 items about satisfactionwere over 3 meaning that participants generally satisfied to program. @*Conclusions@#:Our study suggested that dementia caregiver supporting program could reduce caregiver burden and provide satisfaction. Therefore, programs for supporting dementia caregivers might be important as well as treating dementia patients. So, we should be interested in developing and providing efficiently this kind of pro-gram to reduce caregiver burden.
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Objective@#This study aimed to identify the central symptoms of late-life depression using network analysis and the item response theory. @*Methods@#A total of 3,472 older adults were enrolled and the Geriatric Depression Scale-15 (GDS-15) was used to evaluate the depressive symptoms. To identify the central symptoms and the network structures among the individual symptoms, the analyses of symptom network structures and item response theory were performed. @*Results@#Among items on the GDS-15, “Happy,” “Hopeless,” “Empty,” “Bored,” “Worthless,” and “Good spirits” showed significantly higher strength centrality than the other symptoms. Among all the edges, the edge between “Empty” and “Bored” was the strongest; however, these two symptoms were not connected strongly to other symptoms. In the analysis of item response theory, “Empty,” “Bored,” “Hopeless,” “Worthless,” “Happy,” “Helpless,” and “Satisfied” presented a very high value on the discrimination parameter. @*Conclusion@#Our study identified the central symptoms and the network structures among symptoms listed on the GDS-15. Most of central symptoms identified by network analysis and item response theory coincided. Our results suggest that these central symptoms need to be prioritized as highly comorbid symptoms and can contribute to the development of a brief screening tool for the elderly.
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Objectives@#:Loneliness and poor sleep quality are common phenomena in old age and are associated with negative physical and mental health. However, little is known regarding the relation between loneliness and sleep quality. The aim of this study was to examine the association of loneliness and sleep quality among the elderly living alone. @*Methods@#:This is a cross-sectional study that enrolled 1,090 subjects who are the community-residing elderly living alone. Sociodemographic status, medical condition, cognition, mood disorder, sleep quality and levels of loneliness were collected using a self-administered questionnaire and a specific semi-structured interview con-ducted by trained nurses. Descriptive statistics were used to analyze data regarding sociodemographic variable and loneliness. Univariate and Multivariate regression analyses were applied to examine the association between loneliness and sleep quality after adjustment for multiple confounding variables. @*Results@#:The Pittsburgh Sleep Quality Index (PSQI) mean score of “lonely group” (9.2±4.2) was signifi-cantly higher than that of “not lonely group” (7.3±3.7) (student-t test, p<0.001). Loneliness was significantly as-sociated with PSQI (standardized β= 0.065, p=0.025), sleep disturbance (standardized β=0.086, p=0.005), use of sleep medication (standardized β= 0.065, p=0.034) after adjustment for possible confounding variables including sex and mood disorder. @*Conclusions@#:Loneliness was associated with sleep disturbance and this finding implied negative impact of loneliness on sleep quality of older adults. Public health promotion efforts to reduce loneliness may improve sleep quality and mental health in the elderly living alone.
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Objectives@#:Loneliness and poor sleep quality are common phenomena in old age and are associated with negative physical and mental health. However, little is known regarding the relation between loneliness and sleep quality. The aim of this study was to examine the association of loneliness and sleep quality among the elderly living alone. @*Methods@#:This is a cross-sectional study that enrolled 1,090 subjects who are the community-residing elderly living alone. Sociodemographic status, medical condition, cognition, mood disorder, sleep quality and levels of loneliness were collected using a self-administered questionnaire and a specific semi-structured interview con-ducted by trained nurses. Descriptive statistics were used to analyze data regarding sociodemographic variable and loneliness. Univariate and Multivariate regression analyses were applied to examine the association between loneliness and sleep quality after adjustment for multiple confounding variables. @*Results@#:The Pittsburgh Sleep Quality Index (PSQI) mean score of “lonely group” (9.2±4.2) was signifi-cantly higher than that of “not lonely group” (7.3±3.7) (student-t test, p<0.001). Loneliness was significantly as-sociated with PSQI (standardized β= 0.065, p=0.025), sleep disturbance (standardized β=0.086, p=0.005), use of sleep medication (standardized β= 0.065, p=0.034) after adjustment for possible confounding variables including sex and mood disorder. @*Conclusions@#:Loneliness was associated with sleep disturbance and this finding implied negative impact of loneliness on sleep quality of older adults. Public health promotion efforts to reduce loneliness may improve sleep quality and mental health in the elderly living alone.
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Objective@#Situations in which elderly people are the primary caregivers for their grandchildren are becoming more common. Thisstudy aimed to investigate moderating factors of and the association between grandchild care and the grandparents’ perceived health.Financial support in return for grandchild care was also investigated as a moderating factor. @*Methods@#Participants included 357 elderly people over the age of 60 years. The assessment to evaluate the perceived health status andsocial support was performed via a questionnaire. It included questions regarding the care of grandchildren and demographic variables,as well as the Medical Outcome Survey (MOS) 36-item short-form health survey (SF-36), and the MOS Social Support Survey (MOSSSS). @*Results@#The subscale scores of SF-36 and MOS-SSS did not differ significantly for grandchild-care status. However, the subscale scoresof SF-36 were significantly higher in groups that received regular financial support from adult children in return for grandchild carethan in groups that did not. @*Conclusion@#Our data suggest that regular financial support in return for grandchild care may be a moderating factor in the associationbetween grandchild care and the perceived health status of elderly people. These findings have important social implications and warrantfuture study to reveal the psychological mechanism of these associations and enhance the health of elderly individuals.Psychiatry Investig 2020;17(4):275-282
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Objective@#This study estimated the incidence of driving-related adverse events and examined the association of cognitive function with the risk of future driving-related adverse events in the elderly Korean male population. @*Methods@#We analyzed 1,172 male drivers aged 60 years or older in the Korean Longitudinal Study on Cognitive Aging and Dementia (KLOSCAD). Using the data from Korean National Police Agency, we classified the participants into three groups: safe driving (drove for 2 years after baseline without a traffic accident or repeated violations), driving cessation (stopped driving), and risky driving (one or more traffic accidents or repeated violations). We estimated the incidences of driving cessation and risky driving, and examined the effect of cognitive function on their risks. @*Results@#The incidence of driving cessation and risky driving in the Korean male drivers aged 60 years or older was 19.3 and 69.9 per 1,000 person-years respectively and increased in the late 80s. Drivers with better baseline Word List Memory Test scores showed less risky driving (OR=0.94, p=0.039). @*Conclusion@#Driving-related adverse events increased in late 80s, and better memory function was protective against these events.
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Objective@#Cardiovascular diseases are representative risk factors for the onset of cognitive decline. The purpose of this study was to confirm the relationship between diastolic blood pressure and cognitive function in elderly people in Korea. @*Methods@#Data from subjects who were enrolled in the prospective Korean Longitudinal Study on Cognitive Aging and Dementia were used in this study. Data from 701 subjects whose diastolic blood pressure range did not change (≤79 mm Hg or ≥80 mm Hg) over 2 years were analyzed. To analyze the differences in cognitive function between the groups at the 2-year follow-up, an analysis of covariance was performed with covariates, which were significantly different between the two groups, and the baseline cognitive function. @*Results@#Significant differences were observed between the two groups, and the mean scores on the constructional praxis (η2=0.010) and word list recall tests (η2=0.018) in the diastolic blood pressure ≥80 mm Hg group were higher than those in the diastolic blood pressure ≤79 mm Hg group at the 2-year follow-up. @*Conclusion@#These results indicate that maintaining a DBP below 79 mm Hg presents a greater risk of cognitive decline in Korean elderly people.
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BACKGROUND AND OBJECTIVES@#We sought to investigate an anti-atherosclerotic and anti-inflammatory effect of sodium-glucose cotransporter-2 (SGLT-2) inhibitors in normoglycemic atherosclerotic rabbit model.@*METHODS@#Male New Zealand white rabbits (n=26) were fed with a 1% high-cholesterol diet for 7 weeks followed by normal diet for 2 weeks. After balloon catheter injury, the rabbits were administered with the Dapagliflozin (1mg/kg/day) or control-medium for 8 weeks (n=13 for each group). All lesions were assessed with angiography, optical coherence tomography (OCT), and histological assessment.@*RESULTS@#Atheroma burden (38.51±3.16% vs. 21.91±1.22%, p<0.01) and lipid accumulation (18.90±3.63% vs. 10.20±2.03%, p=0.047) was significantly decreased by SGLT-2 inhibitor treatment. The SGLT-2 inhibitor group showed lower macrophage infiltration (20.23±1.89% vs. 12.72±1.95%, p=0.01) as well as tumor necrosis factor (TNF)-α expression (31.17±4.40% vs. 19.47±2.10%, p=0.025). Relative area of inducible nitric oxide synthase+ macrophages was tended to be lower in the SGLT-2 inhibitor-treated group (1.00±0.16% vs. 0.71±0.10%, p=0.13), while relative proportion of Arg1⺠macrophage was markedly increased (1.00±0.27% vs. 2.43±0.64%, p=0.04). As a result, progression of atherosclerosis was markedly attenuated in SGLT-2 inhibitor treated group (OCT area stenosis, 32.13±1.20% vs. 22.77±0.88%, p<0.01). Mechanistically, SGLT-2 treatment mitigated the inflammatory responses in macrophage. Especially, Toll-like receptor 4uclear factor-kappa B signaling pathway, and their downstream effectors such as interleukin-6 and TNF-α were markedly suppressed by SGLT-2 inhibitor treatment.@*CONCLUSIONS@#These results together suggest that SGLT-2 inhibitor exerts an anti-atherosclerotic effect through favorable modulation of inflammatory response as well as macrophage characteristics in non-diabetic situation.
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Objective@#We investigated the frequency of depressive disorders in the elderly with normal cognition (NC), mild cognitive impairment (MCI) and dementia patients living in the community to find out the association between cognitive disorders and depressive disorders in the community dwelling elderly. @*Methods@#6,262 baseline study subjects from November 2010 through October 2012 were enrolled based on the Korean longitudinal study on cognitive aging and dementia which is the first nationwide multi-center population based prospective cohort study in Korea. Diagnosis of MCI, dementia, major depressive disorder (MDD), minor depressive disorder (mDD) and subsyndromal depression (SSD) was made by psychiatrists with expertise in dementia based on the appropriate diagnostic criteria. @*Results@#4,303 NC, 1,737 MCI, 222 dementia were enrolled. The frequency of MDD, mDD, SSD were highest in dementia and lowest in NC and showed significant difference among three groups. The odds ratio also increased significantly in MCI and dementia compared with NC showing highest odds ratio in dementia. @*Conclusion@#Our findings propose that MCI and dementia in the community dwelling elderly were significantly associated with various types of depressive disorders showing highest association tendency in dementia.