Cited by 44Nutrition and Health in AgingRheumatoid Arthritis Research and TherapiesBody Composition Measurement Techniques

Are men at greater risk of lean mass deficits in rheumatoid arthritis?

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Baker, Joshua F., Long, Jin, Ibrahim, Said, Leonard, Mary B., Katz, Patricia·2015·Arthritis Care & Research

Abstract

OBJECTIVE: We aimed to determine if there were sex differences in lean body mass (LBM) in patients with rheumatoid arthritis (RA) when compared with sex- and race-specific National Health and Nutrition Examination Survey (NHANES) reference data, and to investigate the impact of sex differences in risk factors for LBM deficits. METHODS: Dual x-ray absorptiometry measures of whole body LBM and appendicular LBM (arms and legs, appendicular lean mass [ALM]) were obtained on a total of 190 subjects from 2 independent cohorts (141 from San Francisco [SF], 49 from Philadelphia [PA]), expressed as indices adjusted for height (LBM index and ALM index, kg/m(2) ), and converted to sex- and race-specific Z scores relative to age and based on NHANES data. Sarcopenia was defined using 4 different sex-specific definitions. Multivariable linear and logistic regression analyses adjusted for disease activity, disease duration, physical activity, anti-cyclic citrullinated peptide seropositivity, fat mass index, and glucocorticoid use. RESULTS: While there were significant differences between the 2 cohorts, ALM index Z scores were significantly lower in men compared to women in both (SF: -1.43 versus -0.43, P < 0.0001; PA: -0.83 versus -0.06, P = 0.03). Observed sex differences were significant after adjustment in multivariable analyses within both cohorts. Odds of sarcopenia were 3 to 8 times greater in men in the SF cohort. Men in the PA cohort also had a higher, but nonsignificant, risk of sarcopenia. CONCLUSION: RA is associated with significant LBM deficits, with greater deficits observed in men. Future study may help elucidate the mechanisms driving greater deficits among men.

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  • Discrepancies were also found for the association of sex, social status and quality of life with SO development, with some articles detecting higher risk in males or females and in the presence of poor social status, urban area, married individuals, or white collar subgroup.

    “Discrepancies were also found for the association of sex, social status and quality of life with SO development as some articles detected a higher risk in males [23,24] or females [25,26] and in the presence of poor social status [18e20,26e29], in people living in urban area [30], married individuals [20] or in white collar subgroup [31].”

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Authors
Baker, J. F., Long, J., Ibrahim, S., Leonard, M. B., & Katz, P.
Affiliations
  • Philadelphia VA Medical Center (US)
  • Children's Hospital of Philadelphia (US)
  • University of California, San Francisco (US)
Corresponding author
Katz, Patricia
Venue
Arthritis Care & Research
Publisher
Wiley
Published
2014-12-27
Volume
67
Issue
1
Pages
112-119
ISSN
  • 0893-7524 (ISSN-L)
  • 2151-464X
  • 2151-4658
OpenAlex
W1501117811
Cited by
44
References
42
Citations by year
2026: 2 · 2025: 2 · 2024: 2 · 2023: 3 · 2022: 4 · 2021: 8 · 2020: 4 · 2019: 2 · 2018: 2 · 2017: 10 · 2016: 2 · 2015: 2 · 2014: 1
FWCI
3.32
Type
journal article
Language
en
Open access
Locations
  • Arthritis Care & Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
Veterans Affairs Career Development Award
Topics
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Health Sciences › Medicine › Rheumatology › Rheumatoid Arthritis Research and Therapies
  • Health Sciences › Medicine › Physiology › Body Composition Measurement Techniques
Keywords
rheumatoid arthritis, lean body mass, sex differences, sarcopenia, appendicular lean mass, men, disease activity, glucocorticoid use
MeSH terms
Adult, Aged, Arthritis, Rheumatoid, Body Composition, Cross-Sectional Studies, Female, Humans, Male, Middle Aged, Nutrition Surveys, Pilot Projects, Risk Factors, Sex Characteristics, Cohort Studies, Absorptiometry, Photon, Sarcopenia

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