Table 1.

Definition of DAS₂₈ responder categories

	Change in DAS28
DAS28 achieved	>1.2	>0.6–≤1.2	≤0.6
≤3.2	Good	Moderate	Non
3.2–5.1	Moderate	Moderate	Non
>5.1	Moderate	Non	Non

DAS₂₈ calculation: DAS₂₈ = 0.56 × √TJS₂₈ + 0.28 × √SJS₂₈ + 0.70 × ln ESR + 0.014 VAS_{general health} DAS₂₈, Disease activity score for 28 joints; TJS₂₈, tender joint score for 28 joints; SJS₂₈, swollen joint score for 28 joints; ESR, erythrocyte sedimentation rate (mm hr⁻¹); VAS, visual analogue scale (mm).