DAS28-ESR Calculator (Rheumatoid Arthritis)

DAS28-ESR composite disease-activity score for rheumatoid arthritis.

For educational and clinical reference. Not a substitute for medical judgment. See the medical disclaimer.
DAS28-ESR
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Disease activity
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References

  1. Prevoo ML, van ’t Hof MA, Kuper HH, et al. Modified disease activity scores that include twenty-eight-joint counts. Arthritis Rheum. 1995;38(1):44-48.

How to use

  1. Enter the 28-joint tender and swollen counts, ESR, and patient global health (0–100 mm).
  2. The DAS28-ESR and activity category update instantly.
  3. Use the same DAS28 variant (ESR or CRP) consistently for follow-up.

Frequently asked questions

What is DAS28-ESR?

The Disease Activity Score on 28 joints using ESR — a composite measure of rheumatoid arthritis activity from tender/swollen joint counts, ESR, and patient global health.

What are the DAS28 thresholds?

< 2.6 remission, 2.6–3.2 low activity, > 3.2–5.1 moderate, > 5.1 high disease activity.

How is global health measured?

Patient global assessment of disease activity on a 0–100 mm visual analogue scale (0 = best, 100 = worst).

DAS28-ESR vs DAS28-CRP?

They use different acute-phase reactants and are not interchangeable — DAS28-CRP tends to give slightly lower values; use the same one for longitudinal follow-up.

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