Baseline characteristics of 133 patients with early arthritis
| Median age (range) | 64 years (21–86) |
| Sex (% female) | 68 |
| Ethnic origin (% white) | 88 |
| Educational level (%) | |
| Elementary school | 38 |
| College | 41 |
| University | 21 |
| Marital status (%) | |
| Single/divorced/widowed | 35 |
| Married/living together | 65 |
| Paid employment (%) | 31 |
| Median duration of complaints (range) | 3 months (0–36) |
| IgM-RF positive (%) | 50 |
| Radiographic erosions (%) | 30 |
| Mean DAS (SD) | 5.4 (1.2) |
| Mean HAQ (SD) | 1.1 (0.8) |