Systemic sclerosis & Raynaud's
Systemic sclerosis: changes in the incidence rates in the Finnish population during the years 1999–2018
Authors' conclusion
The incidence of SSc increased during the period between 1999-2003 and 2014-2018 using ACR/EULAR 2013, but not using ACR 1980 criteria. The increase was detected within a limited SSc subclass, owing to more sensitive classification criteria.
Study context
- Population
- Patients registered with ICD-10 code M34 in two Finnish university hospitals, 1999–2018246 systemic sclerosis (SSc), 45 early SSc
- Exposure
- SSc incidence across 5-year periods, 1999–2003 to 2014–2018
- Outcome
- Change in incidence of SSc (ACR/EULAR 2013 and ACR 1980 criteria)
Methodological detailstwo university hospitals, medical record review, ICD-10 code M34, reclassification by American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) 2013 and ACR 1980 criteria
- Two university hospitals
- Medical record review
- ICD-10 code M34
- Reclassification by ACR/EULAR 2013 and ACR 1980 criteria
Main finding
As reported in the abstract
New SSc diagnoses (ACR/EULAR 2013 criteria)
Mean annual incidence rates per 100 000 inhabitants ≥ 16 years old, by 5 year period (1999-2003, 2004-2008, 2009-2013, 2014-2018)
0.9, 1.2, 1.9, and 2.8
Observational data: associations, not effects.
Further findings
Incidence by ACR 1980 criteria
- Patients fulfilling ACR 1980 criteria
- 70
- Increasing trend, not statistically significant
Original publication
Systemic sclerosis: changes in the incidence rates in the Finnish population during the years 1999–2018. Scand J Rheumatol. Published 13 July 2023. doi:10.
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