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KMID : 0379220130330020315
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Journal of Korea Gerontological Society
2013 Volume.33 No. 2 p.315 ~ p.333
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The Effects of Cognitive Functioning and Depressive Symptoms on ADL and IADL Disability of the Korean Old Adults
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Koo Bon-Mi
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Abstract
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The purpose of this study is to investigate the effects of cognitive functioning and depressive symptoms on ADL/IADL disability in the Korean old adults. Samples consist of 1,455(42.7%) men and 2,031(58.3%) women aged 65 above who participated in the 1st and 2nd wave of the Korea Longitudinal Study of Aging: KLoSA . As the results, it`s first found that differences of cognitive functioning and depressive symptoms are associated with the level of ADL/IADL disability. A decline of cognitive status is associated with more elevated ADL/IADL scores when depressive symptoms become worse. Secondly, major risk factors for ADL/IADL disability include cognitive functioning and depressive symptoms by means of multiple regression, adjusted for covariates. In addition, the interaction of cognitive status and depression on the ADL/IADL disability is statistically significant not only at 1st wave but also at 2nd wave. These findings suggest that reduction of depression might slow down the effect of cognitive decline on ADL/IADL disability. Expecially, it is necessary to do early detection and intervention of depression in the beginning of cognitive status decline before the emergence of dementia in order to maintain the active and independent life of the elderly.
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KEYWORD
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disability, cognitive function, depression, elderly, ADL, IADL, longitudinal study
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