Risk Factors and Clinical Outcomes Associated With Sarcopenia in Rheumatoid Arthritis

Author:

Tam Keith1,Wong-Pack Matthew2,Liu Theodore3,Adachi Jonathan,Lau Arthur,Ma Jinhui4,Papaioannou Alexandra,Rodrigues Isabel B.5

Affiliation:

1. Department of Rheumatology, McMaster University, Hamilton

2. Department of Medicine, University of Toronto, Toronto

3. Faculty of Health Sciences

4. GERAS Centre for Aging Research, Hamilton Health Sciences

5. Division of Geriatric Medicine, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.

Abstract

Abstract Sarcopenia is underrecognized in patients with rheumatoid arthritis (RA). Risk factors of sarcopenia and its impact on outcomes in RA patients are relatively unknown. We conducted a systematic review to identify factors and outcomes associated with sarcopenia in RA. We conducted this review according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) 2020 guidelines. We searched PubMed, Embase, CINAHL, and Web of Science databases by combining the following search concepts: (1) RA and (2) sarcopenia. Articles were included if they included RA patients, assessed for sarcopenia using a consensus working group definition, and assessed for clinical outcomes. Meta-analysis was performed using studies that shared the same sarcopenia definition and consistency in reporting patient or disease variables. Our search identified 3602 articles. After removal of duplicates, title and abstract screen, and full-text review, 16 articles were included for final analysis. All studies had observational study designs. The pooled prevalence of sarcopenia ranged from 24% to 30%, depending on the criteria for sarcopenia used. Factors associated with sarcopenia included higher 28-joint Disease Activity Scale scores (+0.39; 95% confidence interval, +0.02 to +0.77) and baseline methotrexate use (odds ratio, 0.70; 95% confidence interval, 0.51–0.97). Baseline glucocorticoid use had a positive correlation with sarcopenia in multiple studies. Several studies found lower bone mineral density and higher incidence of falls and fractures in patients with sarcopenia. Sarcopenia is prevalent in RA, and it may be associated with higher RA disease activity, lower bone mineral density, and increased falls and fractures. Therefore, early screening of sarcopenia in RA patients is important to incorporate into clinical rheumatology practice.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Rheumatology

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