The prevalence, epidemiological characteristics and mortality trends of inflammatory myopathies patients in Oman: the Prevision study
Authors' conclusion
Patients with JDM had a higher mortality rate.
Study context
- Population
- Adult and paediatric patients with idiopathic inflammatory myopathies (IIM) fulfilling Bohan or 2017 EULAR/ACR classification criteria, eight rheumatology centres in Omanmean age 38.78 (±17.61 SD) years
- Participants
- 116 participants
- Exposure
- Dermatomyositis (DM) vs polymyositis (PM) vs JDM
- DMn = 48
- PMn = 36
- JDMn = 18
- Outcome
- Prevalence, epidemiological characteristics, mortality, survival and malignancy rate of IIM
Methodological detailsmulticentre, 16 years, eight rheumatology centres
- Multicentre
- 16 years
- Eight rheumatology centres
Main finding
As reported in the abstract
Prevalence per 100,000 population
Observational data: associations, not effects.
Further findings
Distribution of myositis forms
Five-year survival · 5 years
10-year survival
| Outcome | DM | PM | JDM |
|---|---|---|---|
| Mortality | — not stated in the abstract | — not stated in the abstract | 11.1% |
— not stated in the abstract
- Mortality — Overall mortality
- 6.90%
Distribution of myositis forms
- Inclusion body myositis and necrotising myopathy relatively rare
Cardiac complications, malignancy history and autoantibodies (all patients)
- Cardiac complications
- 14.66%
- History of malignancy
- 1.72%
- ANA
- 71.55%
- Anti-Jo 1 and anti-RNP/SM
- 8.62%
- Anti-Ro
- 24.14%
Original publication
The prevalence, epidemiological characteristics and mortality trends of inflammatory myopathies patients in Oman: the Prevision study. Clin Exp Rheumatol. Published 18 March 2024. doi:10.
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