Kidney function and other associated factors of sarcopenia in community-dwelling older adults: The SCOPE study

Rafael Moreno-González, Josep Maria Cruzado, Screening for CKD among Older People across Europe (SCOPE) study investigators , Andrea Corsonello, Paolo Fabbietti*, Lisanne Tap, Francesco Mattace-Raso, Johan Ärnlöv, Axel C. Carlsson, Agnieszka Guligowska, Tomasz Kostka, Rada Artzi-Medvedik, Itshak Melzer, Regina Roller-Wirnsberger, Gerhard Wirnsberger, Robert Kob, Cornel Sieber, Fabrizia Lattanzio, Francesc Formiga

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)
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Abstract

Aim: 

Sarcopenia is associated with several factors and medical conditions among older adults, though previous research has shown limitations and inconsistencies, especially regarding chronic kidney disease (CKD). We investigated the clinical and laboratory variables associated with sarcopenia and severe sarcopenia in older adults, focusing on kidney function measures. 

Methods: 

Data from community-dwelling adults aged ≥75 years participating in the SCOPE multicenter prospective cohort study were assessed cross-sectionally. Comprehensive geriatric assessment was conducted; sociodemographic and lifestyle factors, clinical variables and comorbidities, anthropometric and bioelectrical impedance analysis, blood and urine laboratory variables were collected. EWGSOP2 revised criteria were used to define sarcopenia and its severity. Estimated glomerular filtration rate (eGFR) was calculated using creatinine and non-creatinine-based equations, and CKD stages were defined accordingly. 

Results: 

1420 participants were included, prevalence of sarcopenia was 10.6 %, and 6 % had severe sarcopenia. Multivariate logistic regression analysis showed that age [OR =1.14; 95 %CI (1.09–1.19)], body mass index (BMI) [0.83 (0.79–0.88)], disability performing instrumental activities of daily living (IADL) [2.61 (1.69–4.06)], Mini Mental State Examination (MMSE) score <24 [2.75 (1.62–4.67)], osteoporosis [2.39 (1.55–3.67)], and stage 4 CKD defined by CKD-EPIBTP-B2M, a non-creatinine-based eGFR equation [2.88 (1.11–7.49)], were independently associated with sarcopenia; as were specifically with severe sarcopenia, with more pronounced associations.

Conclusions: 

In community-dwelling older adults, sarcopenia is a relevant condition and is associated with severe CKD, older age, IADL, cognitive impairments, osteoporosis and low BMI. These factors should be assessed for proper identification and management of older patients with sarcopenia, and even more so with severe sarcopenia.

Original languageEnglish
Pages (from-to)81-93
Number of pages13
JournalEuropean Journal of Internal Medicine
Volume123
Early online date15 Dec 2023
DOIs
Publication statusPublished - May 2024

Bibliographical note

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© 2023

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