RT Journal Article SR Electronic T1 Definition of Treatment Targets in Rheumatoid Arthritis: Is It Time for Reappraisal? JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.210050 DO 10.3899/jrheum.210050 A1 Ricardo J.O. Ferreira A1 Robert B.M. Landewé A1 José A.P. da Silva YR 2021 UL http://www.jrheum.org/content/early/2021/05/27/jrheum.210050.abstract AB In the current issue of The Journal of Rheumatology, Kremer and colleagues1 compare the Clinical Disease Activity Index (CDAI) with a slightly modified Corrona Routine Assessment of Patient Index Data 3 (cRAPID3) in terms of correlation and disease activity categorization, using 2 large US registries of patients with rheumatoid arthritis (RA). Overall, a low concordance between these 2 composite indices (κ = 0.29) was found in terms of disease activity categories, despite a moderate correlation between their numerical global scores (rs = 0.58 and 0.72, for the BRASS and CORRONA registries, respectively).