Detail of patients
| Number | Age Median (range) | No (%) men | |
| Rheumatoid arthritis | 241 | 59 (18–93) | 49 (20) |
| Controls | 473 | ||
| Inflammatory diseases | 158 | ||
| Systemic lupus erythematosus | 21 | 47 (20–73) | 4 (19) |
| Systemic sclerosis | 10 | 56 (39–71) | 1 (10) |
| Other connective tissue diseases1-150 | 21 | 59 (24–82) | 4 (19) |
| Psoriatic arthritis | 43 | 47 (25–75) | 33 (77) |
| Ankylosing spondylitis | 40 | 45 (17–79) | 26 (65) |
| Other inflammatory diseases1-151 | 23 | 63 (21–86) | 14 (61) |
| Non-inflammatory diseases | 315 | ||
| Osteoarthrosis | 104 | 55 (16–83) | 49 (47) |
| Compressive neuropathy | 26 | 55 (31–77) | 13 (50) |
| Paget's disease of bone | 68 | 68 (37–85) | 41 (60) |
| Reflex sympathetic dystrophy | 29 | 51 (27–68) | 14 (48) |
| Malignant bone diseases1-152 | 49 | 66 (39–85) | 32 (65) |
| Other non-inflammatory diseases1-154 | 39 | 69 (42–85) | 10 (26) |