Baseline characteristics of the 3 cohorts. Values are mean (SD) unless otherwise indicated.
| Variables | Overall Characteristics, n = 1034 | Pyramid Study, n = 551 | CAMERA I, n = 299 | CAMERA II, n = 236 |
|---|---|---|---|---|
| Female, % | 65.5 | 68 | 63.5 | 61 |
| RF positive | 65.6 | 64.68 | 68.4 | 60.0 |
| Age, yrs | 55 (14.5) | 55 (14.1) | 54 (14.5) | 54 (13.6) |
| Baseline DAS28 | 5.56 (1.63) | 6.00 (1.44) | 5.59 (1.11) | 4.16 (1.73) |
| Baseline HAQ | 1.19 (0.74) | 1.31 (0.75) | 1.25 (0.69) | 0.72 (0.60) |
| Baseline CRP* | 13 (0, 35)* | 11 (0, 35)* | 15 (5, 35.2)* | 13 (0, 33)* |
| Baseline radiograph* | 0 (0, 4)* | 2 (0, 6)* | 0 (0, 0)* | 0 (0, 0)* |
| Average followup (mos) | 77.4 (47.9) | 97 (51.6) | 52.76 (27.2) | 49.49 (22.5) |
↵* Median presented with 25th and 75th percentile for baseline CRP and baseline radiograph. DAS28: 28-joint Disease Activity Score; HAQ: Health Assessment Questionnaire; RF: rheumatoid factor; CRP: C-reactive protein.