Summary statistics of patient profiles included in the questionnaire
| TJC | SJC | PASI | BSA | Pain VAS | Global VAS | HAQ | Enthesitis | |
| Minimum | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 5th percentile | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 |
| 25th percentile | 0 | 0 | 0 | 0 | 13 | 14 | 0.25 | 0 |
| Median | 2 | 1 | 1.4 | 4 | 27 | 27 | 0.5 | 0 |
| 75th percentile | 10 | 2 | 4.0 | 9 | 41 | 66 | 1.25 | 1 |
| 95th percentile | 43 | 12 | 20.2 | 43 | 75 | 87 | 2.5 | 9 |
| Maximum | 67 | 48 | 36 | 63 | 93 | 99 | 2.63 | 13 |
BSA, body surface area; HAQ, health assessment questionnaire; PASI, Psoriasis Activity and Severity Index; SJC, swollen joint count; TJC, tender joint count; VAS, visual analogue scale.