Fig. 4

De novo enthesitis development (patients with LEI = 0 and SPARCC = 0 at baseline). The dashed line indicates < 14% of patients without enthesitis (LEI = 0 and SPARCC = 0) at baseline with enthesitis at month 6. ^aEach site was assessed bilaterally, and results were combined. BID, twice daily; CI, confidence interval; LEI, Leeds Enthesitis Index; M, month; N, total number of patients with LEI = 0 and SPARCC = 0 at baseline; n, number of affected patients; SPARCC, Spondyloarthritis Research Consortium of Canada Enthesitis Index