Evidence map›Paper›PMID 39929519›Full record

ArticlePsychogeriatrics : the official journal of the Japanese Psychogeriatric Society2025

Health literacy and frailty: the mediating role of instrumental activities of daily living.

Keisuke Nakamura, Tomohiro Sasaki, Yoshiharu Yokokawa, Shinobu Yokouchi

Abstract read
In one paragraph

Article in Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Association Between Health Literacy and Frailty in Older Adults: A Study in Two Brazilian Municipalities.International journal of environmental research and public health · 2026
    Article
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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.

Keisuke NakamuraDepartment of Physical Therapy, School of Health Sciences, Shinshu University, Matsumoto, Japan.ORCID https://orcid.org/0000-0001-7801-2069
Tomohiro SasakiHealth Promotion Division, Matsumoto City Hall, Matsumoto, Japan.
Yoshiharu YokokawaDepartment of Physical Therapy, School of Health Sciences, Shinshu University, Matsumoto, Japan.
Shinobu YokouchiHealth Promotion Division, Matsumoto City Hall, Matsumoto, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionJapan has the fastest ageing population worldwide, with a high prevalence of frailty. This study aimed to investigate the impact of communicative and critical health literacy (CCHL) on the progression of frailty in older adults participating in community-based programs over 1 year, and whether instrumental activities of daily living (IADL) mediate this relationship.

methodsThis retrospective cohort study used data from the Matsumoto City Frailty Prevention Project, involving 373 older adults aged 65 years and over. Health literacy was measured using the CCHL scale, and IADL was assessed using the Tokyo Metropolitan Institute of Gerontology Index of Competence (TMIG-IC), which includes five items of IADLs. Frailty was classified using the Japanese version of the Cardiovascular Health Study (J-CHS) criteria. Mediation analysis was used to evaluate the role of IADL in the relationship between health literacy and frailty.

resultsParticipants with higher CCHL had significantly better IADL scores (coefficient = 0.127, P = 0.043) and were less likely to progress to frailty (odds ratio: 0.546, P = 0.009). Mediation analysis revealed that IADL accounted for approximately 10.7% of the total effect of health literacy on frailty progression (P = 0.030).

conclusionHigher CCHL reduces the risk of frailty progression, with IADL playing a mediating role. Interventions targeting both health literacy and IADL may effectively prevent frailty in older adults.

Indexed as

Activities of Daily LivingFrail ElderlyFrailtyHealth LiteracyAgedAged, 80 and overFemaleGeriatric AssessmentHumansJapanMaleRetrospective Studiesactivities of daily livingfrailtyhealth literacyinterventionsolder adults

Identifiers

PMID39929519
PMCPMC11810535

What OpenQuestion holds

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Registered trials

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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.