Increased rates of idiopathic inflammatory myopathies during the COVID-19 pandemic: a single-centre experience
Authors' conclusion
The incidence of IIM increased during the COVID-19 pandemic. These patients display unique features and a more severe presentation. Fortunately, the prognosis remains unchanged.
Study context
- Population
- Adult patients (>18 years) diagnosed with IIM at the Department of Medicine and Rheumatology Unit of Hadassah Medical Center, Jerusalem, Israel
- Participants
- 18 vs 16
- Exposure
- IIM diagnosed during COVID-19 vs IIM diagnosed before the outbreak
- COVID-19n = 18
- Pre-pandemicn = 16reference
- Outcome
- Incidence rate of IIM diagnoses (patients/month)
Methodological detailssingle-centre, with literature review
- Single-centre
- With literature review
Main finding
As reported in the abstract
IIM incidence rate
Observational data: associations, not effects.
Further findings
Sex distribution in IIM diagnosed during the pandemic
- Male predominance (M:F ratio) in IIM patients diagnosed during the pandemic
- 12:6
Hospitalisation rate (admitted/total patients)
- Higher hospitalisation rate, pandemic vs pre-pandemic diagnosis
- 0.77 vs. 0.43
Patients with CPK >10,000 U/L
- Increased number of patients with CPK >10,000 U/L, pandemic vs pre-pandemic diagnosis
- 3 vs. 1
Survival
- Survival comparable between the groups despite more severe presentation and course in the pandemic group
Original publication
Increased rates of idiopathic inflammatory myopathies during the COVID-19 pandemic: a single-centre experience. Clin Exp Rheumatol. Published 13 January 2023. doi:10.
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