Evidence map›Paper›PMID 41872548›Full record

ArticleInternational journal of obesity (2005)2026

Clinical characteristics and survival in sarcopenic obesity defined by the Japanese working group on sarcopenic obesity criteria versus existing definitions in older adults: findings from the Otassha study.

Takeshi Kera, Hisashi Kawai, Manami Ejiri, Keigo Imamura, Hiroyuki Sasai, Hirohiko Hirano, Yoshinori Fujiwara, Kazushige Ihara, Shuichi Obuchi

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Article in International journal of obesity (2005), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

9 authors.

Takeshi KeraDepartment of Physical Therapy, Takasaki University of Health and Welfare, Gunma, Japan. kera@takasaki-u.ac.jp.ORCID 0000-0002-2356-0188
Hisashi KawaiResearch Team for Human Care, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan.ORCID 0000-0003-3015-6041
Manami EjiriResearch Team for Human Care, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan.
Keigo ImamuraResearch Team for Human Care, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan.
Hiroyuki SasaiResearch Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan.
Hirohiko HiranoResearch Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan.
Yoshinori FujiwaraTokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan.
Kazushige IharaDepartment of Social Medicine, Hirosaki University School of Medicine, Aomori, Japan.ORCID 0000-0003-3190-0290
Shuichi ObuchiResearch Team for Human Care, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Japanese Working Group on Sarcopenic Obesity (JWGSO) recently published diagnostic criteria for sarcopenic obesity specific to Asian populations. This study aimed to estimate the prevalence and evaluate the characteristics and validity of sarcopenic obesity as defined by the JWGSO.

methodsWe analysed longitudinal data from 736 community-dwelling older adults aged ≥65 years from the 2012 Otassha Study. Sarcopenic obesity was diagnosed using JWGSO and European Society for Clinical Nutrition and Metabolism/European Association for the Study of Obesity (ESPEN/EASO) criteria. Physical function, body composition, gonalgia, and mobility were compared between participants with and without sarcopenic obesity according to each criterion. Agreement between JWGSO-defined sarcopenic obesity and conventional sarcopenia with obesity or ESPEN/EASO definitions was evaluated using Cohen's kappa coefficient. Survival over approximately an 8-year follow-up was evaluated using Kaplan-Meier curves and log-rank tests. Cox proportional hazards models were applied, and when the proportional hazards assumption was violated, analyses were stratified into early and late follow-up periods.

resultsSarcopenic obesity was present in 57 participants (7.7%) per JWGSO criteria and 55 participants (7.5%) per ESPEN/EASO criteria. Regardless of definition, participants with sarcopenic obesity were older; had lower walking speed, grip strength, and balance; and exhibited higher prevalence of conventional sarcopenia, knee osteoarthritis, and reduced mobility function (p = 0.022 to p < 0.001). Agreement between JWGSO and conventional sarcopenic obesity and ESPEN/EASO definitions was fair (K = 0.345) and substantial (K = 0.671), respectively. JWGSO-defined sarcopenic obesity was not significantly associated with mortality in the early follow-up but was linked to increased mortality risk in the late period (HR 3.75, 95% CI 1.66-8.50, p = 0.002).

conclusionSarcopenic obesity defined by the JWGSO is distinct from conventional sarcopenia with obesity and ESPEN/EASO-defined sarcopenic obesity. This population-specific criterion may improve identification of older Japanese adults at higher risk of poor physical function and mortality, although further validation is warranted.

Indexed as

ObesitySarcopeniaAgedAged, 80 and overBody CompositionEast Asian PeopleFemaleHumansJapanLongitudinal StudiesMalePrevalence

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PMID41872548

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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.