Psoriatic Arthritis Response Criteria*
| *From Clegg et al, 1996.36 |
| Improvement in two of the following four criteria, one of which must be tender or swollen joint score: |
| Doctor global assessment (1 unit on 0–5 Likert scale) |
| Patient global assessment (1 unit on 0–5 Likert scale) |
| Tender joint score (30% improvement) |
| Swollen joint score (30% improvement) |
| No worsening in any criteria |