Osteoporosis & bone health

Damaged bone microarchitecture by Trabecular Bone Score (TBS) and low appendicular muscle mass: main risk factors for vertebral and non-vertebral fractures in women with long-standing rheumatoid arthritis

Osteoporos IntPublished Cross-sectional study

Authors' conclusion

In women with long-term RA, markers of fractures differed between distinct skeletal sites (vertebral and non-vertebral). The magnitude of association of bone/muscle parameters with fracture (TBS for VF and appendicular muscle mass for NVF) was greater than that of the association between RA activity and fracture.

Study context

Population
Women with established rheumatoid arthritis (RA) (ACR 2010); median age 55 [22–86] years; mean disease duration 16.2 years265 analysed
Participants
300 women
Outcome
Risk factors for vertebral (VF) and non-vertebral fractures (NVF), including clinical, laboratory and DXA parameters (BMD, TBS, muscle mass)
Methodological detailsmultivariate logistic regression
  • Multivariate logistic regression

Main finding

As reported in the abstract

Prevalence of VF
30.6%
Prevalence of non-vertebral fractures (NVF)
17.4%
VF: TBS, OR 1.6 (95% CI 1.09-2.36)
p = 0.017
VF: C-reactive protein (CRP), OR 1.54 (95% CI 1.15-2.08)
p = 0.004
VF: parathormone, OR 1.24 (95% CI 1.05-1.45)
p = 0.009
NVF: Body mass index (BMI), OR 0.90 (95% CI 0.82-0.99)
p = 0.025
NVF: hip bone mineral density (BMD), OR 1.82 (95% CI 1.10-3.03)
p = 0.02

Observational data: associations, not effects.

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Damaged bone microarchitecture by Trabecular Bone Score (TBS) and low appendicular muscle mass: main risk factors for vertebral and non-vertebral fractures in women with long-standing rheumatoid arthritis. Osteoporos Int. Published 25 January 2024. doi:10.1007/s00198-024-07026-3

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