Concordance (Cohen’s κ) between the different response criteria. T numbers refer to months.
| Criteria | T0 | T4 | T8 | T12 |
|---|---|---|---|---|
| MDA and DAS28-CRP remission | — | 0.18 | 0.18 | 0.11 |
| DAPSA remission and DAS28-CRP remission | — | 0.30 | 0.13 | 0.15 |
| MDA and DAPSA remission | — | 0.53 | 0.36 | 0.43 |
MDA: minimal disease activity; DAS28: 28-joint Disease Activity Score; CRP: C-reactive protein, DAPSA: Disease Activity Index for Psoriatic Arthritis.