CASPAR Criteria for Psoriatic Arthritis

Requires inflammatory articular disease (joint, spine or entheseal). Highest applicable psoriasis item only — do not add current + personal + family.

For clinicians only. This tool is for healthcare professionals and clinical education only. It does not diagnose, replace clinical judgement, or replace specialist assessment. Any decisions about a patient must be based on full clinical assessment, investigations where appropriate, and current clinical guidelines.

Entry criterion

Inflammatory articular disease (joints, spine, or entheses)

CASPAR criteria should not be applied because the required inflammatory articular disease entry criterion is not met.

Psoriasis (highest applicable item only)

Choose the highest applicable

Current psoriasis+2

Personal history of psoriasis+1

Family history of psoriasis (1st or 2nd degree)+1

None+0

Other CASPAR items

Psoriatic nail dystrophy+1

Negative rheumatoid factor+1

Current or history of dactylitis+1

Radiological juxta-articular new bone formation (hand/foot X-ray)+1

Live result

0

Entry not met

CASPAR criteria are classification criteria and should be interpreted in clinical context.

Sources

Taylor W, Gladman D, Helliwell P, et al. CASPAR classification criteria. Arthritis Rheum 2006.

For clinicians only. This tool is for healthcare professionals and clinical education only. It does not diagnose, replace clinical judgement, or replace specialist assessment. Any decisions about a patient must be based on full clinical assessment, investigations where appropriate, and current clinical guidelines.

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