Figure 1.

The contribution of each component of the 28-joint Disease Activity Score using the C reactive protein level (DAS28-CRP) to remission (score <2.6 (solid horizontal line)) when other components are in the range of remission. The DAS28-CRP is composed of four components: CRP level (A), tender joint count (TJC) (B), swollen joint count (SJC) (C) and patient global assessment of arthritis activity (D). In each graph, it is assumed that the three components other than the one depicted met the threshold for remission (CRP 0.5, TJC 0 [red dashed lines] or 1 [blue dashed lines], SJC 0, patient global assessment 1). Note that when the TJC is 0, most values of CRP and patient global assessment yield a DAS28 of <2.6 (‘remission’), and SJC values of <10 yield DAS28 ‘remission’.