DAPSA (Psoriatic Arthritis Disease Activity)
Disease Activity in Psoriatic Arthritis (DAPSA): 68-joint tender + 66-joint swollen counts + patient-global + pain VAS + CRP (mg/dL); banded remission / low / moderate / high.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- 68-joint tender count
- 5
- 66-joint swollen count
- 3
- Patient-global VAS
- 4
- Pain VAS
- 4
- CRP
- 1.2 mg/dL
Result: DAPSA 17.2 — moderate disease activity.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Cutoffs
- Remission ≤ 4, low 5–14, moderate 15–28, high > 28.
What you enter
- 68-joint tender count
- 66-joint swollen count
- Patient-global VAS (0–10)
- Pain VAS (0–10)
- CRP
How this is calculated
- Formula
- TJC68 + SJC66 + patient-global VAS (0–10) + pain VAS (0–10) + CRP in mg/dL (not mg/L).
Schoels MM, Aletaha D, Alasti F, Smolen JS. Disease activity in psoriatic arthritis (DAPSA): defining remission and treatment success. Ann Rheum Dis. 2016;75(5):811-818. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.