Demographic data of the patients (mean (SEM))
| PSA | RA | OA | |
|---|---|---|---|
| Number of patients (F/M) | 6/29 | 47/13 | 12/13 |
| Age (y) | 50.5 (2.5) | 60.9 (1.5) | 57.6 (3.6) |
| Treatment | |||
| DMARDs | |||
| MTX | 12 | 13 | 0 |
| Gold salts | 1 | 7 | 0 |
| Chloroquine | 0 | 7 | 0 |
| D-penicillamine | 0 | 5 | 0 |
| Azathioprine | 0 | 6 | 0 |
| Prednisolone in addition (<10 mg/day) | 3 | 13 | 0 |
| NSAID | 22 | 22 | 25 |
| Duration of disease (y) | 9.5 (0.9) | 8.6 (1.1) | NA |
| Number of swollen joints | 4.9 (0.9) | 6.8 (0.7) | NA |
| Number of tender joints | 6.9 (1.2) | 7.7 (0.8) | NA |
| Morning stiffness (min) | 27.4 (8.3) | 52.6 (10.0) | NA |
| ESR (mm 1st h) | 41.0 (3.6) | 45.7 (3.8) | 19.5 (2.8) |
| CRP (mg/l) | 17.3 (4.2) | 33.2 (5.3) | 13.7 (1.6) |
| SF leucocytes x 103/μl | 14.6 (3.0) | 19.0 (2.3) | 5.6 (1.7) |
| RF in SFs (IU/ml) | 19.0 (4.0) | 84.0 (23.3) | 11.9 (0.9) |
NA = not analysed