CASPAR criteria
Rheumatology
Also known as: CASPAR-Kriterien · CASPAR kriterleri · CASPAR criteria (classification of psoriatic arthritis)
What it is for
ClASsification criteria for Psoriatic ARthritis (CASPAR): a patient with inflammatory articular disease (joint, spine or entheses) is classified as having psoriatic arthritis with ≥3 points from the items below.
Classification
| Category | Description |
|---|---|
| Current psoriasis | 2 points. |
| Personal history of psoriasis | 1 point (counted only if current psoriasis is absent). |
| Family history of psoriasis | 1 point, in a first- or second-degree relative (counted only if current psoriasis and personal history are absent). |
| Psoriatic nail dystrophy | 1 point (for example onycholysis, pitting, hyperkeratosis). |
| Negative rheumatoid factor | 1 point. |
| Dactylitis | 1 point, current or previous. |
| Juxta-articular new bone formation | 1 point: ill-defined ossification near joint margins (not osteophytes) on plain radiographs of hand or foot. |
| Interpretation | inflammatory articular disease plus ≥3 points: classified as psoriatic arthritis. |
Source
Classification criteria for psoriatic arthritis: development of new criteria from a large international study
Arthritis Rheum 2006;54:2665–2673 (Taylor W et al.; CASPAR Study Group)
DOI: 10.1002/art.21972
PMID: 16871531
- Edition
- CASPAR 2006 (current)
- Checked on
Summary of the published classification in our own words. Not a substitute for the original publication.
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