Cut-Offs for Disease Activity States in Axial Spondyloarthritis With Ankylosing Spondylitis Disease Activity Score (ASDAS) Based on C-Reactive Protein and ASDAS Based on Erythrocyte Sedimentation Rate: Are They Interchangeable?
Stylianos Georgiadis,
Lykke Midtbøll Ørnbjerg,
Brigitte Michelsen
et al.
Abstract:ObjectiveAnkylosing Spondylitis Disease Activity Score with C-reactive protein (ASDAS-CRP) is recommended over erythrocyte sedimentation rate (ASDAS-ESR) to assess disease activity in axial spondyloarthritis (axSpA). Although ASDAS-CRP and ASDAS-ESR are not interchangeable, the same disease activity cut-offs are used for both. We aimed to estimate optimal ASDAS-ESR values corresponding to the established ASDAS-CRP cut-offs (1.3, 2.1 and 3.5) and investigate the potential improvement of level of agreement betwe… Show more
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