Evidence map›Paper›PMID 32215833›Full record

SynthesisSleep & breathing = Schlaf & Atmung2020

Sleep and frailty risk: a systematic review and meta-analysis.

Ali Pourmotabbed, Behnoosh Boozari, Atefeh Babaei, Omid Asbaghi, Marilyn S Campbell, Hamed Mohammadi, Amir Hadi, Sajjad Moradi

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Sleep & breathing = Schlaf & Atmung, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

58 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  8. Prevalence of preoperative multidimensional frailty and associated factors in middle-aged and older patients with newly diagnosed breast cancer: a cross-sectional study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Ali PourmotabbedDepartment of Physiology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.
Behnoosh BoozariDepartment of Clinical Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
Atefeh BabaeiDepartment of Physiology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.
Omid AsbaghiStudent Research Committee, Lorestan University of Medical Sciences, Khorramabad, Iran.
Marilyn S CampbellDepartment of Kinesiology and Health Promotion, University of Kentucky, Lexington, KY, USA.
Hamed MohammadiDepartment of Clinical Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
Amir HadiHalal Research Center of IRI, FDA, Tehran, Iran.
Sajjad MoradiDepartment of Clinical Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran. sajadmoradi9096@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeStudies on the association between sleep and frailty risk have yielded contradictory outcomes. Therefore, a systematic review and meta-analysis were designed to examine the relationship between sleep and frailty risk.

methodsRelevant studies were identified by searching PubMed, Embase, and Scopus databases until 30 November 2019. Data were available from ten studies. Selected articles were published between 2009 and 2019. The odds ratios of 41,233 individuals were used for the meta-analysis.

resultsPooled analysis demonstrated that when compared to the reference category of 6 to 8 hours nightly sleep duration, both the highest category (more than 8 hours, OR 1.21; 95% CI 1.10-1.32) and lowest category of sleep (under 6 hours, OR 1.13; 95% CI 1.08-1.18), were significantly correlated with increased risk of frailty. Furthermore, daytime drowsiness (OR 1.25; 95% CI 1.02-1.52), sleep disordered breathing (OR 1.28; 95% CI 1.03-1.58), and prolonged sleep latency (OR 1.18; 95% CI 1.06-1.31) enhanced the risk of frailty. Subgroup analyses by frailty status suggest that a shorter sleep duration was associated with risk of frailty but not pre-frailty. However, prolonged sleep time was significantly related with enhanced risk of pre-frailty and frailty. In addition, subgroup analyses via sex revealed that longer and shorter sleep durations increased risk of frailty in both men and women.

conclusionThe present study revealed that longer and shorter sleep durations are associated with increased risk of frailty.

Indexed as

AgedAged, 80 and overFemaleFrail ElderlyFrailtyHumansMaleRiskSleep Wake DisordersTime FactorsFrailtyMeta-analysisSleepSystematic review

Identifiers

PMID32215833

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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 OpenQuestion graph.