1 Before you use it
What it is
A composite disease-activity score combining patient-reported items with an inflammatory marker — CRP or ESR. That blood component is what separates it from BASDAI.
When to reach for it
When it appears in correspondence — it tells you where the medical management currently sits, which changes what your loading and exercise programme is competing with.
Patterns it serves · 1
2 Giving it
Scoring
Weighted combination of back pain, duration of morning stiffness, patient global, peripheral pain/swelling and CRP (or ESR). Requires a calculator and a recent blood result.
What it doesn’t measure
Function or mobility, and it needs a blood test you cannot order.
3 Reading the score
Interpreting it
Conventional cut-offs describe inactive disease, low, high and very high activity.
A physiotherapist will read this, not calculate it. It appears in rheumatology letters and it is worth being able to interpret.
Is the change real?
Student trap. Trying to calculate it without a CRP. Without the inflammatory marker it isn't the ASDAS — use BASDAI instead.
Official source: asas-group.org. We don't host the form.
This is a learning tool. It does not diagnose patients and does not replace your clinical educator.
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