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Table 1 Characteristics of the study populations
| Characteristics | RA patients | OA patients | |
|---|---|---|---|
| All cohort | Sub-cohorta | ||
| Number of patients, n | 8658 | 2472 | 32,202 |
| Female, n (%) | 5819 (67.2) | 1711 (69.2) | 22,046 (68.5) |
| Age, mean (SD) (years) | 63.8 (15.1) | 62.4 (15.3) | 70.3 (12.0) |
| Median (years) | 66.0 | 64.0 | 72.0 |
| Diabetes complications, n (%) | 424 (4.9) | 90 (3.6) | 2571 (8.0) |
| CRP at baseline, mean (SD) (mg/dl) | – | 2.4 (4.1) | – |
| Median (mg/dl) | – | 0.7 | – |
| Total cholesterol at baseline, mean (SD) (mg/dl) | – | 186.9 (39.9) | – |
| Median (mg/dl) | – | 183.0 | – |
