Mean (SD) scores of RA-FQ and other RA disease activity indicators by flare* status in the Canadian Early Arthritis Cohort.
| Variables | Flare*, n = 51 | No Flare*, n = 571 | Mean Difference (95% CI) |
|---|---|---|---|
| RA-FQ | 29.0 (10.2) | 9.4 (10.0) | 19.6 (16.7–22.6) |
| Tender joint count | 5.3 (5.8) | 1.6 (3.3) | 3.7 (2.0–5.4) |
| Swollen joint count | 3.0 (5.2) | 1.1 (2.4) | 1.9 (0.4–3.4) |
| MD global | 2.5 (2.4) | 0.9 (1.6) | 1.6 (0.9–2.3) |
| Patient global | 5.2 (1.5) | 1.7 (1.8) | 3.4 (2.9–4.0) |
| Pain, 10 mm VAS | 6.2 (2.1) | 2.0 (2.2) | 4.2 (3.6–4.9) |
| HAQ, 0–3 | 0.8 (0.5) | 0.3 (0.5) | 0.5 (0.4–0.7) |
| ESR | 19.8 (19.5) | 15.9 (16.0) | 4.0 (−1.5 to 9.4) |
| CRP | 8.0 (12.9) | 5.2 (8.9) | 2.8 (−1.2 to 6.8) |
| DAS28 | 4.2 (1.5) | 2.5 (1.2) | 1.6 (1.1–2.2) |
↵* Both patient and MD classified the patient as being in a flare. RA-FQ: Rheumatoid Arthritis Flare Questionnaire; VAS: visual analog scale; HAQ: Health Assessment Questionnaire; ESR: erythrocyte sedimentation rate; CRP: C-reactive protein; DAS28: Disease Activity Score in 28 joints.