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http://dx.doi.org/10.5392/JKCA.2020.20.10.458

The Effect of Depressive Symptoms on Cognitive Function in the Elderly: Moderation Effect of Education  

Shin, Minyoung (용문상담심리대학원대학교)
Publication Information
The Journal of the Korea Contents Association / v.20, no.10, 2020 , pp. 458-469 More about this Journal
Abstract
Geriatric depression is associated with pathological changes in the brain and increases the risk of cognitive impairment or dementia. However, high cognitive reserve, such as high education, can delay or minimize clinical manifestations of pathologies involving the brain, so the effect of geriatric depression on cognitive impairment or dementia may vary depending on the education level. In this study, the author analyzed data from the Korean Longitudinal Study of Aging (KLoSA) to examine whether the effect of geriatric depression on cognitive function differed depending on education level. Among the 10,254 subjects registered in the KLoSA, the 4,905 subjects who met the inclusion criteria were analyzed by stepwise regression analysis. The results were as follows: first, depressive symptoms predicted low cognitive function after 12 years; second, the negative effect of depressive symptoms on cognitive function after 12 years was higher in the old adult group than in the young adult group; and third, the effect of age was significant only in the low-educated group. These results suggest that depressive symptoms in low-educated old adults may increase the risk of development of dementia in the long term.
Keywords
Depressive Symptoms; Cognitive Function; Old Age; Education;
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