Fig. 3

Relationship between Disease Activity Score using 28-joint counts (DAS28) remission and Simplified Disease Activity Index (SDAI) and Clinical Disease Activity Index (CDAI) status, based on patients with data available at baseline, month 6 and month 12 and achieving DAS28 remission at month 6 or 12 (DAS28 remission = DAS28 <2.6); CDAI/SDAI disease activity states are mutually exclusive (a patient can be in only one category at any one time) and were defined as: SDAI remission = SDAI ≤3.3; SDAI low disease activity (LDA) = SDAI >3.3–11; SDAI moderate disease activity (MDA) = SDAI >11–26; SDAI high disease activity (HDA) = SDAI >26; CDAI remission = CDAI ≤3.3; CDAI LDA = CDAI >2.8–10; CDAI MDA = CDAI >10–22; CDAI HDA = CDAI >22. MTX methotrexate