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Faculty Publications
Subjective memory complaints in an elderly population with poor sleep quality | |
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Year of publication | 2017 |
Title of paper | Subjective memory complaints in an elderly population with poor sleep quality |
Author | Suk-Hoon Kang, In-Young Yoon, Sang-Don Lee, Tae Kim, Chung Suk Lee, Ji Won Han, Ki Woong Kim, and Chan-Hyung Kim |
Publication in journal | Aging & Mental Health |
Status of publication | accepted |
Vol | 21(5) |
Link | https://www.ncbi.nlm.nih.gov/pubmed/26689628 251회 연결 |
Objectives: The association between sleep disturbances and cognitive decline in the elderly has been putative and controversial. We evaluated the relation between subjective sleep quality and cognitive function in the Korean elderly. Method: Among 459 community-dwelling subjects, 352 subjects without depression or neurologic disorders (mean age 68.2 ± 6.1) were analyzed in this study. All the participants completed the Korean version of the consortium to establish a registry for Alzheimer's disease neuropsychological battery (CERAD-KN) as an objective cognitive measure and subjective memory complaints questionnaire (SMCQ). Based on the Pittsburgh sleep quality index, two types of sleepers were defined: ‘good sleepers’ and ‘poor sleepers’. Results: There were 192 good sleepers (92 men) and 160 poor sleepers (51 men). Poor sleepers reported more depressive symptoms and more use of sleep medication, and showed higher SMCQ scores than good sleepers, but there was no difference in any assessments of CERAD-KN. In the regression analysis, depressive symptoms and subjective sleep quality were associated with subjective memory complaints (β = 0.312, p < 0.001; β = 0.163, p = 0.005). Conclusion: In the elderly without depression, poor sleep quality was associated with subjective memory complaints, but not with objective cognitive measures. As subjective memory complaints might develop into cognitive disorders, poor sleep quality in the elderly needs to be adequately controlled. |