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Table 5 Classification criteria for psoriatic arthritis [12]

From: Brazilian Society of Rheumatology 2020 guidelines for psoriatic arthritis

Presence of established inflammatory joint disease

 

(arthritis, enthesitis, axial) and at least 3 points

Points

Current skin psoriasis OR

2 or

History of psoriasis OR

1 or

Family history of psoriasis

1

Dactylitis

1

Nail dystrophy

1

Negative rheumatoid factor

1

Juxta-articular bone neoformation

1

  1. Sensitivity 0.914; Specificity 0.987