SynthesisBMC geriatrics2024
Sleep duration, sleep efficiency, and amyloid β among cognitively healthy later-life adults: a systematic review and meta-analysis.
Synthesis in BMC geriatrics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Associations among sleep quality, sleep duration, and Alzheimer's disease biomarkers: A systematic review and meta-analysis.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Pooled it
- Sleep architecture and self-reported sleep quality are associated with Alzheimer's disease biomarkers in older adults without dementia.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026Trial
- Prediction of cognitive performance by demographics, sleep, and brain morphometry: machine learning findings from ENIGMA-Sleep Working Group.Research square · 2026Article
- Night-to-night rapid eye movement sleep variability: A relevant marker of early amyloid-β deposition.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Observational
- Self-report and actigraphy measures of sleep and domain-specific cognitive performance in older adults.GeroScience · 2026Article
- A study on the correlation between frailty, sleep quality, and cognitive function in low-income older adults living in the urban-rural fringe of China.Frontiers in public health · 2026Article
- Combined effect of cognitive dysfunction and sleep disturbance on mortality risk: NHANES 2011-2014.Annals of general psychiatry · 2025Article
- Rocking during sleep reduces motor deficits and beta-amyloid levels in an Alzheimer's mouse model.iScience · 2025Article
- Circadian Rhythm Dysfunction in Neurodegenerative Diseases: A Bidirectional Perspective and Therapeutic Potential.Nature and science of sleep · 2025Review
- Article
- Air Traffic Controller Workload Detection Based on EEG Signals.Sensors (Basel, Switzerland) · 2024Article
Corrections and comments
- Update of
Authors and funding
6 authors.
Funding
Abstract
backgroundAbnormal amyloid β (Aβ) deposits in the brain are a hallmark of Alzheimer's disease (AD). Insufficient sleep duration and poor sleep quality are risk factors for developing AD. Sleep may play a role in Aβ regulation, but the magnitude of the relationship between sleep and Aβ deposition remains unclear. This systematic review examines the relationship between sleep (i.e., duration and efficiency) with Aβ deposition in later-life adults.
methodsA search of PubMed, CINAHL, Embase, and PsycINFO generated 5,005 published articles. Fifteen studies met the inclusion criteria for qualitative syntheses; thirteen studies for quantitative syntheses related to sleep duration and Aβ; and nine studies for quantitative syntheses related to sleep efficiency and Aβ.
resultsMean ages of the samples ranged from 63 to 76 years. Studies measured Aβ using cerebrospinal fluid, serum, and positron emission tomography scans with two tracers: Carbone 11-labeled Pittsburgh compound B or fluorine 18-labeled. Sleep duration was measured subjectively using interviews or questionnaires, or objectively using polysomnography or actigraphy. Study analyses accounted for demographic and lifestyle factors. Based on 13 eligible articles, our synthesis demonstrated that the average association between sleep duration and Aβ was not statistically significant (Fisher's Z = -0.055, 95% CI = -0.117 ~ 0.008). We found that longer self-report sleep duration is associated with lower Aβ (Fisher's Z = -0.062, 95% CI = -0.119 ~ -0.005), whereas the objectively measured sleep duration was not associated with Aβ (Fisher's Z = 0.002, 95% CI = -0.108 ~ 0.113). Based on 9 eligible articles for sleep efficiency, our synthesis also demonstrated that the average association between sleep efficiency and Aβ was not statistically significant (Fisher's Z = 0.048, 95% CI = -0.066 ~ 0.161).
conclusionThe findings from this review suggest that shorter self-reported sleep duration is associated with higher Aβ levels. Given the heterogeneous nature of the sleep measures and outcomes, it is still difficult to determine the exact relationship between sleep and Aβ. Future studies with larger sample sizes should focus on comprehensive sleep characteristics and use longitudinal designs to better understand the relationship between sleep and AD.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.