Patient characteristics
| Characteristics | Patients with anti-TNF treatment | Patients without anti-TNF treatment |
|---|---|---|
| Values are given as median, 25th and 75th centiles unless stated otherwise. | ||
| Number of patients | 757 | 800 |
| Age at RA diagnosis (years) | 42 (32–52) | 49 (36–61) |
| RA duration at inclusion (years) | 12 (5–19) | 11 (4–22) |
| Female (%) | 76 | 73 |
| Age at inclusion (years) | 56 (53–78) | 64 (52–78) |
| Follow up time (years) | 2.1 (1.3–3.1) | 5.5 (5.3–5.5) |
| HAQ quartile ⩾3 (%) | 61 | 41 |
| Number of previous DMARDs | 3 (2–5) | 1 (0–2) |
| Duration of anti-TNF treatment (years) | 1.7 | – |