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  • Title: Is sleep quality related to cognition in individuals with heart failure?
    Author: Moon C, Phelan CH, Lauver DR, Bratzke LC.
    Journal: Heart Lung; 2015; 44(3):212-8. PubMed ID: 25796476.
    Abstract:
    OBJECTIVE: To examine how self-reported sleep quality and daytime symptoms are associated with selected domains of cognitive function among individuals with heart failure (HF). BACKGROUND: HF patients suffer from poor sleep quality and cognitive decline. The relationship between sleep and cognition has not been well documented among individuals with HF. METHODS: In this descriptive, cross-sectional study, 68 individuals with HF (male: 63%, mean age = 72 years, SD = 11) completed sleep questionnaires and a neuropsychological battery. RESULTS: Participant had mean Pittsburgh Sleep Quality Index score of 5.04 (SD = 2.8). Regression analyses demonstrated neither sleep quality or excessive daytime sleepiness (EDS) were related to cognitive function, but daytime dysfunction was related to lower letter fluency and attention index. CONCLUSION: Contrary to some earlier reports, subjective sleep and EDS in this group of individuals was not associated with cognitive decline.
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