A. A. Change from baseline in Genant-modified Sharp total score. B. Erosion score. C. Joint-space narrowing score in patients originally randomized to abatacept (ABA) and entering the longterm extension. Data are presented for patients originally randomized to ABA who entered the longterm extension with available assessments at the visit of interest (as-observed population). *Baseline to Year 1; †Year 1 to Year 2; ‡Year 2 to Year 3; ¶Year 3 to Year 4; §Year 4 to Year 5. Δ: change from previous year (mean ± SD); BL: baseline. Joel M. Kremer et al. J Rheumatol 2014;41:1077-1087 ©2014 by The Journal of Rheumatology