Evidence map›Paper›PMID 39212786›Full record

ArticleGeroScience2025

Association between self-reported difficulty in chewing or swallowing and frailty in older adults: A retrospective cohort study.

So Sato, Yusuke Sasabuchi, Akira Okada, Hideo Yasunaga

Abstract read
In one paragraph

Article in GeroScience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–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

12 citing papers in PubMed.

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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

4 authors.

So SatoDepartment of Clinical Epidemiology and Health Economics, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 1130033, Japan. sato-so4k9@g.ecc.u-tokyo.ac.jp.ORCID 0000-0003-1265-6835
Yusuke SasabuchiDepartment of Real-World Evidence, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Akira OkadaDepartment of Prevention of Diabetes and Lifestyle-Related Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Hideo YasunagaDepartment of Clinical Epidemiology and Health Economics, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 1130033, Japan.

Funding

Ministry of Health, Labour and Welfare 23AA2003
6 · The paper itself

Abstract

Oral frailty can contribute to physical and mental health disorders. Previous research has shown an association between frailty and self-reported difficulty in chewing or swallowing. However, their combined assessment has obscured their specific impact on frailty-related outcomes. To investigate the independent associations between difficulty in chewing or swallowing and 1-year frailty outcomes, while also examining their interactions. This retrospective cohort study utilized the DeSC database to identify older adults aged ≥ 75 years who underwent health checkups between April 2014 and November 2022. Multivariate Cox regression analyses were conducted to assess the association between self-reported difficulty in chewing or swallowing and outcomes, including hospitalization due to aspiration pneumonia, all-cause hospitalization, and all-cause mortality within 1 year. Interactions between chewing and swallowing difficulties were also evaluated. Among 359,111 older adults, 39.0% reported oral function difficulties. Swallowing difficulty alone lacked significant outcome association. However, chewing difficulty alone was significantly associated with higher risks of hospitalization due to aspiration pneumonia (hazard ratio (HR), 1.35; 95% confidence interval (CI), 1.15-1.58; P < 0.001), all-cause hospitalization (HR, 1.08; 95% CI, 1.05-1.11; P < 0.001), and all-cause mortality (HR, 1.28; 95% CI, 1.14-1.44; P < 0.001) compared with no self-reported difficulty. A significant positive interaction between self-reported difficulty in chewing and swallowing was observed for all-cause mortality (P = 0.009). Self-reported difficulty in chewing was significantly associated with higher risks of hospitalization due to aspiration pneumonia, all-cause hospitalization, and all-cause mortality among older adults. Chewing and swallowing difficulties showed a synergistic effect, significantly increasing all-cause mortality risk.

Indexed as

Deglutition DisordersFrail ElderlyFrailtyMasticationAgedAged, 80 and overDeglutitionFemaleGeriatric AssessmentHospitalizationHumansMalePneumonia, AspirationProportional Hazards ModelsRetrospective StudiesRisk FactorsAspiration pneumoniaChewingFrailtySelf-reported oral functionSwallowing

Identifiers

PMID39212786
PMCPMC12181454

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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.