Disease Activity Score-28 (CRP) (DAS28-CRP)
Formula: 0.56×√TJC + 0.28×√SJC + 0.36×ln(CRP+1) + 0.014×GH + 0.96.
Calculator
How it works
DAS28-CRP substitutes C-reactive protein for ESR in the DAS28 framework (Fransen et al.; published reference).
Limits
Joint counts and VAS technique must match the validated 28-joint assessment; not interchangeable with DAS28-ESR without recalculation.
Educational tool only—not for diagnosis or treatment decisions.