The Association between Sleep Quality and Mild Cognitive Impairment in Older Adults
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Abstract
Background: Mild cognitive impairment (MCI) is the condition between normal brain aging and dementia. However, MCI can increase the risk of developing dementia. At present, there is much evidence that sleep problems are associated with neurodegenerative disorders.
Objective: To study the association between sleep quality and mild cognitive impairment in older adults
Design: An analytical cross-sectional study
Materials and Method: This study was performed in the Department of Family Medicine and Outpatient Services, Phramongkutklao Hospital with patients who were 60 years old or older. Data were collected from August 2020-October 2020. The participants completed three questionnaires: 1) Demographic data form 2) The Pittsburgh Sleep Quality Index: PSQI Thai version and 3) Montreal Cognitive Assessment: MoCA test Thai version. Factors associated with MCI were analyzed by multivariate logistic regression (p-value<0.05).
Results: There were 275 persons, recruited in this study. The prevalence of mild cognitive impairment was 60.4%, and 53.8% of the participants were found to have poor sleep quality. The significant risk factors related to mild cognitive impairment were the poor sleep quality (adjusted OR 8.23, 95% CI; 3.76-18.01, p-value < 0.001) and education level lower than bachelor’s degree (adjusted OR 4.65, 95% CI; 1.95-11.05, p-value = 0.001). Occasional or frequent tea/coffee drinking (adjusted OR 0.32; 95% CI; 0.13-0.81, p-value = 0.017)was associated with a protective effect.
Conclusions: Sleep quality had a strong association with this condition. Therefore, healthcare providers should be concerned about screening for cognition in patients who presented with sleep problems.
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