Baseline characteristics of the 1888 evaluated joints of the 59 patients with rheumatoid arthritis
| Type of joint | Wrist N=118 | MCP N=590 | PIP N=590 | MTP N=590 | Total N=1888 |
|---|---|---|---|---|---|
| Tender | 48.3* | 29.7 | 26.1 | 40.5 | 33.1 |
| Clinical synovitis | 80.3 | 51.0 | 43.2 | 22.9 | 41.6 |
| B-mode synovitis | 82.1 | 50.5 | 37.5 | 55.7 | 50.0 |
| PDUS-synovitis | 59.8 | 28.4 | 17.5 | 22.0 | 24.9 |
| Tender with clinical synovitis | 44.1 | 24.4 | 20.3 | 18.0 | 22.4 |
| Tender with B-mode synovitis | 39.8 | 20.2 | 15.6 | 23.2 | 20.9 |
| Tender with PDUS synovitis | 34.7 | 14.3 | 8.1 | 12.1 | 13.0 |
| Tender with no clinical synovitis | 4.2 | 5.1 | 5.8 | 22.5 | 10.7 |
| Tender with no B-mode synovitis | 8.5 | 9.2 | 10.5 | 17.0 | 12.0 |
| Tender with no PDUS synovitis | 13.6 | 15.3 | 17.8 | 28.1 | 20.0 |
| Not tender with no clinical synovitis | 15.4 | 43.8 | 51.0 | 54.6 | 47.7 |
| Not tender with no B-mode synovitis | 9.4 | 40.2 | 52.0 | 27.0 | 37.9 |
| Not tender with no PDUS synovitis | 26.5 | 56.3 | 64.6 | 49.5 | 54.9 |
| Clinical synovitis but not tender | 35.9 | 26.5 | 22.9 | 4.9 | 19.2 |
| B-mode synovitis but not tender | 41.9 | 30.2 | 21.9 | 32.3 | 28.9 |
| PDUS synovitis but not tender | 24.8 | 14.1 | 9.3 | 9.7 | 11.9 |
*Percentage proportion involved in the referred joint region
MCP, metacarpophalangeal; MTP, metatarsophalangeal; PIP, proximal interphalangeal; PDUS, power Doppler ultrasound.