Figure 4From: Construct validity and responsiveness of the simplified version of Ankylosing Spondylitis Disease Activity Score (SASDAS) for the evaluation of disease activity in axial spondyloarthritisScatter plot of patient data showing the change in SASDAS compared with the change score of ASDAS-ESR (A), ASDAS-CRP (B) and BASDAI (C) at 6 months of follow-up. Changes of SASDAS were all significantly (p < 0.0001), related to changes of ASDAS-ESR ASDAS-CRP and BASDAI, in response to treatment (r = 0.784; r = 0.774 and r = 0.807).Back to article page