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Distribution of participants in the PDQ categories according to diagnosis in the test-retest study
| n | ||||||
|---|---|---|---|---|---|---|
| PDQ score < 13 | PDQ score 13–18 | PDQ score > 18 | ||||
| Test | Retestc | Test | Retest | Test | Retest | |
| RA | 4 | 4 | 3 | 4 | 3 | 2 |
| PsA | 4 | 5 | 2 | 2 | 4 | 3 |
| SpA | 7 | 7 | 2 | 1 | 1 | 2 |
| In total | 15 | 16 | 7 | 7 | 8 | 7 |
