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Table 4 ASDAS-CRP evaluation criteria for axial inflammatory activity in spondyloarthritis [8, 200, 201]

From: Brazilian Society of Rheumatology 2020 guidelines for psoriatic arthritis

ASDAS-CRP

       

1. Overall back pain (BASDAI question 2)

       

2. Global patient assessment

       

3. Peripheral pain/inflammation (BASDAI question 3)

       

4. Duration of morning stiffness (BASDAI question 6)

       

5. C-reactive protein (CRP) in mg/l [or erythrocyte sedimentation rate (ESR)]

       

ASDASCRP

0.12 X overall

 + 

0.06 X duration of

 + 

0.07 X

 + 

0.58 X

back pain

morning stiffness

Peripheral pain/inflammation

Ln(CRP + 1)

ASDASCRP < 1.3

Activity = Inactive

      

1.3 ≤ ASDASCRP < 2.1

Activity = Low disease activity

      

2.1 ≤ ASDASCRP < 3.5

Activity = High

      

ASDASCRP > 3.5

Activity = Very high

      
  1. ASDAS-CRP: Ankylosing Spondylitis Disease Activity Score with C-Reactive Protein
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Advances in Rheumatology

ISSN: 2523-3106