Sjögren's disease & overlap diseases

Inclusion-body myositis associated with Sjögren’s disease: clinical characteristics and comparison with other Sjögren-associated myositis

Rheumatology (Oxford)Published Retrospective cohort study

Authors' conclusion

IBM can occur in SjD patients, with muscle features reminiscent of classic sporadic IBM characteristics, but mostly affecting women.

Study context

Population
Patients meeting ACR/EULAR criteria for Sjögren's disease (SjD) and for inflammatory myopathies (IM), 13 French centres
Participants
22 vs 50
Exposure
SjD-IBM vs SjD-other IM
  • SjD-IBMn = 22
  • SjD-other IMn = 50reference
Outcome
Characteristics of SjD-IBM
Methodological detailsmulticentre (13 French centres), Retrospective recruitment
  • Multicentre (13 French centres)
  • Retrospective recruitment

Main finding

As reported in the abstract

GroupValueAge at SjD diagnosisAge at first inclusion-body myositis (IBM) symptomsFemalesESSDAI at SjD diagnosisProgressive symptom onsetAsymmetrical involvementDistal involvementDysphagiaCPKCRPImmunosuppressants reported efficient
SjD-IBMmedian 54 (IQR 38.5–64) years54 [38.5; 64] years62 [46.5; 70] years86%5.5 [1; 7.8]59%27%32%41%386.5 [221.8; 670.5] UI/l3.0 [3; 8.5] mg/l55%

SjD-IBM

Valuemedian 54 (IQR 38.5–64) years
Age at SjD diagnosis54 [38.5; 64] years
Age at first inclusion-body myositis (IBM) symptoms62 [46.5; 70] years
Females86%
ESSDAI at SjD diagnosis5.5 [1; 7.8]
Progressive symptom onset59%
Asymmetrical involvement27%
Distal involvement32%
Dysphagia41%
CPK386.5 [221.8; 670.5] UI/l
CRP3.0 [3; 8.5] mg/l
Immunosuppressants reported efficient55%

Observational data: associations, not effects.

Further findings

OutcomeSjD-other IM
SjD-other IM vs SjD-IBMValue is ESSDAI11 (IQR 3–30)
ESSDAI11 [3; 30]
Delay SjD diagnosis to myositis onset0 [−0.5; 26]
CPK >1000 UI/l36%

SjD-other IM vs SjD-IBM

SjD-other IM significantly younger, more frequent additional extra-glandular disease, higher ESSDAI, shorter delay, more frequent CPK >1000 UI/l, less frequent classic IBM features

Original publication

Inclusion-body myositis associated with Sjögren’s disease: clinical characteristics and comparison with other Sjögren-associated myositis. Rheumatology (Oxford). Published 1 March 2024. doi:10.1093/rheumatology/keae129

Composed by AI from the published abstract and checked against it. How Briefs are made →

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