Yield of repeated assessments of SpA features in patients with CBP suspected of axSpA was modest for the increase of new definite axSpA diagnosis at 2y. Sacroilitis on MRI, good response to NSAIDs at BL most predictive of axSpA, ML Marques #ACR23 @RheumNow https://t.co/LQ5llML11M https://t.co/PYcCDypI7c