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        Standardization of the Korean Version of the Geriatric Depression Scale: Reliability, Validity, and Factor Structure

        Ji Yang Kim,박준혁,이정재,Yoonseok Huh,이석범,Seung Kyoung Han,Sung Won Choi,이동영,김기웅,우종인 대한신경정신의학회 2008 PSYCHIATRY INVESTIGATION Vol.5 No.4

        Objective: We developed a Revised Korean version of the Geriatric Depression Scale (GDS-KR) and examined its reliability, validity, and factor structures. We also estimated its optimal cutoff scores for major depressive disorder (MDD) and minor depressive disorder (MnDD) stratified by age and education. Methods: The GDS-KR was administered to 888 subjects (61 MDD patients, 45 MnDD patients, and 782 normal elders). Its internal consistency and test-retest reliability were examined. Its concurrent validity was evaluated using Pearson correlation coefficients with the Korean version of the Center for Epidemiologic Studies Depression Scale (CES-D-K) and Hamilton Depression Rating Scale (HAM-D). The mean GDS-KR scores of the MDD patients, MnDD patients and normal elders were compared to evaluate its discriminant validity. To evaluate its construct validity, a principal component analysis with varimax rotation was performed. Receiver operator characteristic (ROC) curve analyses were performed to evaluate its diagnostic ability. Results: Chronbach’s coefficient alpha for the GDS-KR was 0.90 and the test-retest reliability was 0.91 (p<0.01). The Pearson correlation coefficients of the GDS-KR scores with the CES-D-K and HAM-D scores were 0.63 (p<0.01) and 0.56 (p<0.01), respectively. The GDS-KR consisted of 5 factors. The optimal cut-off scores of the GDS-KR were 16/17 for MDD only and 15/16 for both MDD and MnDD. The optimal cutoff scores of the GDSKR were higher in the less educated and younger subjects. The diagnostic accuracy for MDD of the GDS-KR was higher than that of the CES-D. Conclusion: The GDS-KR was found to be a reliable and valid questionnaire for screening MDD and MnDD in late life.

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        Impacts of Poor Social Support on General Health Status in Community-Dwelling Korean Elderly: The Results from the Korean Longitudinal Study on Health and Aging

        JaeKyung Shin,KiWoong Kim,JoonHyuk Park,JungJae Lee,Yoonseok Huh,SeokBum Lee,EunAe Choi,DongYoung Lee,JongInn Woo 대한신경정신의학회 2008 PSYCHIATRY INVESTIGATION Vol.5 No.3

        Objective-We investigated the influence of social support on health, quality of life (QOL), and the risk of depression in elderly Korean people. Methods-This study was conducted as a part of the Korean Longitudinal Study on Health and Aging (KLoSHA). A total of 787 nondemented community-dwelling elderly aged 65 years or older were recruited and underwent clinical evaluations for dementia and psychiatric disorders conformed to Korean version of the Consortium to Establish a Registry for Alzheimer’s Disease Clinical Assessment Battery (CERAD-K) and the Korean version of the Mini-International Neuropsychiatric Interview (MINI), respectively. Social support was assessed using the Medical Outcome Study Social Support Survey (MOS-SSS). Poor social support (PSS) was defined as having a MOS-SSS score below the 25th percentile of the entire sample. General health status was comprehensively evaluated using the modified Cumulative Illness Rating Scale (CIRS), the Korean version of the Geriatric Depression Scale (GDS-K), Mini-Mental Status Examination (MMSE-KC), Korean Activities of Daily Living (KADL), and Korean Instrumental Activities of Daily Living (KIADL). Healthrelated QOL was evaluated using the Short Form 36 (SF-36). Results-Low educational attainment and living alone were associated with PSS. Geriatric depression was more prevalent in the PSS group (OR=3.05, 95% CI=1.77-5.27) than in the normal social support (NSS) group. Among the various forms of social support, positive social interaction was significantly associated with risk of geriatric depression (OR=2.25, 95% CI=1.07-4.73). Although health-related QOL was lower in the PSS group than in the NSS group, the ADL and IADL scores of the subjects in the PSS group were better than those of the subjects in the NSS group. In the subjects with geriatric depression, PSS was associated with more severe depression, higher medical morbidity, and poor QOL. Conclusion-PSS had a negative influence on the general health status and QOL among community-dwelling elderly and was an independent risk factor of geriatric depression.

      • Role of severity and gender in the association between late-life depression and all-cause mortality

        Jeong, Hyun-Ghang,Lee, Jung Jae,Lee, Seok Bum,Park, Joon Hyuk,Huh, Yoonseok,Han, Ji Won,Kim, Tae Hui,Chin, Ho Jun,Kim, Ki Woong Cambridge University Press 2013 INTERNATIONAL PSYCHOGERIATRICS - Vol.25 No.4

        <B>ABSTRACT</B><P>Background: Mortality associated with depression may be influenced by severity of depression and gender. We investigated the differential impacts on all-cause mortality of late-life depression by the type of depression (major depressive disorder, MDD; minor depressive disorder, MnDD; subsyndromal depression, SSD) and gender after adjusting comorbid conditions in the randomly sampled elderly.</P><P>Methods: One thousand community-dwelling elderly individuals were enrolled. Standardized face-to-face clinical interviews, neurological examination, and physical examination were conducted to diagnose depressive disorders and comorbid cognitive disorders. Depressive disorders were diagnosed according to the <I>Diagnostic and Statistical Manual of Mental Disorders-IV</I> (DSM-IV) criteria and SSD to study-specific operational criteria. Five-year survivals were compared between groups using Cox proportional hazards models.</P><P>Results: By the end of 2010, 174 subjects (17.4%) died. Depressive disorder (<I>p</I> = 0.001) and its interaction term with gender (<I>p</I> < 0.001) were significant in predicting five-year survival. MDD was an independent risk factor for mortality in men (hazard ratio = 3.65, 95% confidence interval = 1.67-7.96) whereas MnDD and SSD were not when other risk factors were adjusted.</P><P>Conclusions: MDD may directly confer the risk of mortality in elderly men whereas non-major depression may be just an indicator of increased mortality in both genders.</P>

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