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Clinical nutrition

Sarcopenia as a mortality predictor in community-dwelling older adults: a comparison of the diagnostic criteria of the European Working Group on Sarcopenia in Older People

Abstract

Background/objectives

The definition of sarcopenia remains a matter of discussion and there is no globally accepted consensus for its diagnosis. The aim of this study was to assess the effect of sarcopenia diagnostic components on mortality, as well as to compare the associations between sarcopenia diagnosed via the 2010 and 2018 Consensuses of the European Working Group on Sarcopenia in Older People (EWGSOP) and mortality.

Methods

Prospective cohort study involving noninstitutionalized older adults aged ≥ 60 years. For the diagnosis of sarcopenia, the definitions proposed by the 2010 (EWGSOP) and 2018 (EWGSOP2) Consensuses were used. The diagnostic components corresponded to muscle mass, muscular strength, and physical performance. The associations of sarcopenia and its components with mortality were investigated using Cox proportional hazard regression models.

Results

The sample consisted of 1291 older adults. After an average of 2.6 years of follow-up, 88 (6.8%) participants had died. The diagnosis of severe sarcopenia by both Consensuses was associated with an increased risk of mortality. Severe sarcopenia was associated with an increased risk of death compared with that in people without sarcopenia when using EWGSOP (hazard ratio (HR) 3.15, 95% confidence interval (CI) 1.44–6.90) and EWGSOP2 (HR 4.11, 95% CI 1.88–9.00). Older adults with decreased gait speed had a 76% higher risk of dying (p = 0.033). There was no statistically significant association between the other sarcopenia components and mortality risk.

Conclusions

Older adults with severe sarcopenia and those with changes in physical performance had an increased risk of death in the short term.

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Acknowledgements

The authors thank the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) and the the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for the financial support, and all the colleagues who collaborated on the COMO VAI? study.

Funding

First phase (2014) was funded by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) from Brazil and also by individual financial resources of the students. The second phase was partially funded by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq).

Authors’ contributions

NPB and MCG planned the study. RMB and MCG performed the statistical analyses. NPB, RMB, AMBM, ET, TGBS and MCG wrote the paper. All authors approved the final version of the paper.

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Correspondence to Nathalia Perleberg Bachettini.

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Bachettini, N.P., Bielemann, R.M., Barbosa-Silva, T.G. et al. Sarcopenia as a mortality predictor in community-dwelling older adults: a comparison of the diagnostic criteria of the European Working Group on Sarcopenia in Older People. Eur J Clin Nutr 74, 573–580 (2020). https://doi.org/10.1038/s41430-019-0508-8

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