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DAS-28

DAS-28: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.

ℹ Reference calculation based on the published method. It does not replace a clinical examination or a doctor's decision.

DAS-28

Tender joint count (of 28)
Swollen joint count (of 28)
ESRmm/h
C-reactive proteinmg/L
Patient global health assessmentmm
DAS28-ESR
4.6
DAS-28: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.
RA activity
Moderate
DAS28-CRP
4.04

More about: DAS-28

What it calculates

The “DAS-28” calculator computes DAS28-ESR from 5 parameters: tender joint count (of 28), swollen joint count (of 28), esr (mm/h), c-reactive protein (mg/L), patient global health assessment (mm).

Used by professionals and patients to assess health metrics, dosages, and risks.

Example calculation

With parameters Tender joint count (of 28) = 4, Swollen joint count (of 28) = 2, ESR = 30 mm/h, C-reactive protein = 10 mg/L, Patient global health assessment = 50 mm the result is 4.6.

How to use

  1. Enter tender joint count (of 28), swollen joint count (of 28), esr, c-reactive protein and patient global health assessment — each field above is adjustable with a slider.
  2. DAS28-ESR is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is BMI calculated?
BMI = weight (kg) / height (m)². Example: 70 kg / (1.75 m)² = 22.9. The WHO normal range is 18.5–24.9; below that is underweight, 25–29.9 is overweight, and 30+ is obese.
Is BMI accurate for everyone?
No. BMI does not distinguish muscle from fat, so athletes may show a high BMI with low body fat. It is also less reliable for teenagers, pregnant people, older adults, and very tall or short individuals.
What are the BMI categories?
Underweight: below 18.5. Normal: 18.5–24.9. Overweight: 25–29.9. Obese class I: 30–34.9; class II: 35–39.9; class III: 40+.
What is a better measure than BMI?
Body fat percentage, waist-to-height ratio (aim for under 0.5), and waist circumference give a clearer picture of health than BMI alone.

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