English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Objective: We aimed to determine the relationship between day-to-day sleepefficiency variability and cognitive function among older adults usingaccelerometer data and three cognitive tests.  Methods: Older adults aged 65+ with 5 days of accelerometer data from theNational Health and Nutrition Examination Survey (NHANES) who completed theDigit Symbol Substitution Test (DSST), the Consortium to Establish a Registryfor Alzheimers Disease Word-Learning subtest (CERAD WL), and Animal FluencyTest (AFT) were included in this study. Associations between sleep efficiencyvariability and each cognitive test were examined adjusted for age, sex,education, household income, marital status, depressive symptoms, diabetes,smoking habits, alcohol consumption, arthritis, heart disease, prior heartattack, prior stroke, activities of daily living, and instrumental activitiesof daily living.  Results: A total of 1074 older adults were included in this study. Greatersleep efficiency variability was univariably associated with worse cognitivefunction based on the DSST (per 10% increase, Beta -3.34, 95% CI -5.33 to-1.34), CERAD-WL (per 10% increase, Beta -1.00, 95% CI -1.79 to -0.21), and AFT(per 10% increase, Beta -1.02, 95% CI -1.68 to -0.36). In adjusted models,greater sleep efficiency variability remained associated with lower DSST (per10% increase, Beta -2.01, 95% CI -3.62 to -0.40) and AFT (per 10% increase,Beta -0.84, 95% CI -1.47 to -0.21) scores but not CERAD WL scores.  Conclusions: Targeting consistency regarding sleep quality may be useful forinterventions seeking to preserve cognitive function among older adults.

Associations Between Sleep Efficiency Variability and Cognition Among Older Adults: Cross-Sectional Accelerometer Study