Spondyloarthritis & psoriatic arthritis
Regional differences in clinical phenotype of axial spondyloarthritis: results from the International Map of Axial Spondyloarthritis (IMAS)
Authors' conclusion
There is great heterogeneity of axSpA clinical phenotype presentation around the world. AxSpA manifests differently in different regions
Study context
- Population
- Unselected axial spondyloarthritis (axSpA) patients from 27 countries, IMAS online survey (2017–2022)
- Participants
- 5,557 patients27 countries
- Exposure
- Europe vs North America vs Asia vs Latin America vs South Africa
- Europen = 3,493
- North American = 770
- Asian = 600
- Latin American = 548
- South African = 146
- Outcome
- axSpA clinical phenotype across five regions
Methodological detailsonline survey, international (27 countries)
- Online survey
- International (27 countries)
Main finding
As reported in the abstract
Mean BASDAI overall; highest in South Africa, lowest in Asia
5.4
Observational data: associations, not effects.
Original publication
Regional differences in clinical phenotype of axial spondyloarthritis: results from the International Map of Axial Spondyloarthritis (IMAS). Rheumatology (Oxford). Published 21 December 2023. doi:10.
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