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 GeorgiadisLykke Midtbøll ØrnbjergBrigitte MichelsenTore K KvienDaniela di GiuseppeJohan Karlsson WallmanJakub ZávadaSella Aarrestad ProvanEirik Klami KristianslundAna Maria RodriguesMaria Jose SantosŽiga RotarKatja Perdan PirkmajerDan NordströmGary John MacfarlaneGareth T JonesIrene E van der Horst-BruinsmaPasoon HellamandMikkel ØstergaardMerete Lund HetlandPublished in: The Journal of rheumatology (2024)
We estimated the optimal ASDAS-ESR values corresponding to the established ASDAS-CRP cut-off values. However, applying the estimated cut-offs did not increase the level of agreement between ASDAS-ESR and ASDAS-CRP disease activity states to a relevant degree. Our findings did not provide evidence to reject the established cut-off values for ASDAS-ESR.