Vasculitis & polymyalgia rheumatica

Changes to physical function and body composition during the first 2 years of polymyalgia rheumatica

Rheumatology (Oxford)Published Prospective cohort study

Authors' conclusion

PMR has a lasting impact on physical function, particularly in females.

Study context

Population
Patients with recently diagnosed polymyalgia rheumatica (PMR) and age- and sex-matched controls
Participants
36 vs 32
Exposure
Recently diagnosed PMR vs age- and sex-matched controls
  • PMRn = 36
  • Controlsn = 32reference
Outcome
Physical function, body composition and frailty
Follow-up
3 months after GC initiation and 18 months later
Methodological detailsage- and sex-matched controls
  • Age- and sex-matched controls

Main finding

As reported in the abstract

HAQ-DI score (higher = greater disability) · Both visits

Mean difference

0.33

P < 0.001

initial visit

Mean difference

0.39

P < 0.001

follow-up visit

Observational data: associations, not effects.

Further findings

OutcomeMean difference (95% CI)P value
Five times chair stand test, females (subgroup) · Follow-upPMR performed more poorly3.27 (0.69–5.84)P = 0.02
SPPB, females (subgroup) · Follow-up−1.23 (−2.01 to −0.45)P = 0.003
Gait speed, females (subgroup) · Follow-up−0.24 (−0.36 to −0.12)P < 0.001
Change in gait speed between timepoints, females (subgroup)Greater decline in PMR−0.13 (−0.23 to −0.03)P = 0.009

Pre-frailty rate (Fried's phenotype) · Initial visit

OR 4.7 · P = 0.003

Pre-frailty rate (Fried's phenotype) · Follow-up visit

OR 2.9 · P = 0.04

Change in body composition · Between timepoints

No significant differences for change in body composition

Original publication

Changes to physical function and body composition during the first 2 years of polymyalgia rheumatica. Rheumatology (Oxford). Published 11 July 2025. doi:10.1093/rheumatology/keaf375

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