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Evaluation of the assumed interactive causation between cognitive functions and depressed states among community-dwelling older Japanese Daisuke Kimura 1 , Tokunori Takeda 2 , Takashi Fujita 2 , Nobuyuki Sunahara 3 , Ken Nakatani 1 , Katsumi Inoue 3 , Aiko Imai 2 , Masako Notoya 4 1Department of Rehabilitation Sciences, Faculty of Allied Health Sciences, Kansai University of Welfare Sciences 2Division of Occupational Therapy, Faculty of Care and Rehabilitation, Seijoh University 3School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University 4Department of Speech and Hearing Sciences and Disorders, Kyoto Gakuen University Keyword: 認知機能 , 抑うつ , (パス解析) , Cognitive function , Depression , Path diagram pp.342-348
Published Date 2017/6/15
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 The purpose of this study was to explore interactive causation between depression and cognitive function. The study population consisted of 59 subjects from the community-dwelling elderly. Depression was evaluated using the Geriatrics Depression Scale-15 (GDS-15), and cognitive function was evaluated using a short version of the Mini-Mental State Examination (Brief Cognitive Function Examination: BCFE). Using these two evaluations, we created a cause and effect hypothesis model, and performed structural equation modeling analysis to standardize the model. In our results, “Baseline BCFE” indicates the first check assessed by BCFE, and “After GDS-15” indicates an assessment after 3 years from baseline. The factors were: “Baseline GDS-15” indicator variable, “After BCFE” (path coefficient = -.05); “Baseline BCFE” indicator variable “After GDS-15” (path coefficient = -.15); “Baseline BCFE” indicator variable “After BCFE” (path coefficient = .25, p<.05); and “Baseline GDS-15” indicator variable “After GDS-15” (path coefficient = .53, p<.05). The p-value for the chi-square model fit (79.9, DF = 61) was 0.053, and for GFI, AGFI, and RMSEA was 1.000, 0.999, and 0.000, respectively. Thus, all three fitness statistics indicated an excellent fit to the overall model. We concluded that the progression from a depressed mental state to a decline in cognitive function was low, and the current depressed mental state and the state of the cognitive function were interpreted as prediction factors for later cognitive decline.


Copyright © 2017, Japanese Association of Occupational Therapists. All rights reserved.

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電子版ISSN 印刷版ISSN 0289-4920 日本作業療法士協会

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