Patient characteristics. Data are presented as means (SD) unless otherwise stated
| OA | Diffuse rheumatoid synovitis | Follicular rheumatoid synovitis | p < | |||
|---|---|---|---|---|---|---|
| (OA) | (A) | (B) | OA v A | OA v B | A v B | |
| SD, standard deviation; OA, osteoarthritis; NS, not significant; ESR, erythrocyte sedimentation rate; CRP, C reactive protein; DAS, disease activity score; RF, rheumatoid factor; DMARDs, disease modifying antirheumatic drugs. | ||||||
| *Treatment in the last three months before surgery; | ||||||
| †radiological stage of rheumatoid arthritis according to Steinbrocker. | ||||||
| Women/men | 25/9 | 21/5 | 14/3 | NS | NS | NS |
| Age (years) | 57.9 (13.0) | 52.3 (12.1) | 56.6 (13.8) | NS | NS | NS |
| Disease duration (years) | 14.5 (11.1) | 16.3 (8.1) | 13.1 (6.2) | NS | NS | NS |
| ESR (mm/1st h) | 16.7 (11.0) | 46.2 (12.3) | 59.4 (20.7) | 0.001 | 0.001 | 0.05 |
| CRP (mg/l) | 6.3 (4.8) | 32.4 (11.6) | 42.3 (12.6) | 0.001 | 0.001 | 0.05 |
| Swollen joints | – | 12.8 (3.3) | 15.9 (4.1) | – | – | 0.01 |
| Ritchie index | – | 12.5 (3.4) | 14.4 (3.2) | – | – | NS |
| DAS | 4.2 (0.5) | 4.6 (0.6) | 0.05 | |||
| RF positive patients (No (%)) | – | 17 (65) | 13 (76) | – | – | NS |
| DMARDs* (No (%)) | – | 17 (65) | 15 (88) | – | – | NS |
| Sulfasalazine* (No (%)) | 7 (27) | 3 (18) | NS | |||
| Methotrexate* (No (%)) | – | 10 (38) | 13 (76) | – | – | 0.05 |
| Radiological stage III or IV† (No (%)) | – | 12 (46) | 14 (82) | – | – | 0.05 |