Table 1.
Baseline characteristics of the 1888 evaluated joints of the 59 studied patients with rheumatoid arthritis
| Joints | |||||
|---|---|---|---|---|---|
| Characteristics | Wrists | MCP | PIP | MTP | Total |
| Number | 118 | 590 | 590 | 590 | 1888 |
| Clinical synovitis | |||||
| 0 = absent | 19.7* | 49.0 | 56.8 | 77.1 | 58.4 |
| 1 = doubtful | 23.1 | 13.3 | 11.7 | 12.2 | 13.1 |
| 2 = present, moderate | 38.5 | 23.1 | 21.0 | 8.0 | 18.7 |
| 3 = present, important | 18.8 | 14.6 | 10.5 | 2.7 | 9.9 |
| US grey-scale synovitis† | |||||
| Grade 0 | 17.9 | 49.5 | 62.5 | 44.3 | 50.0 |
| Grade 1 | 35.0 | 15.1 | 11.4 | 26.2 | 18.6 |
| Grade 2 | 27.4 | 13.6 | 10.8 | 15.3 | 14.1 |
| Grade 3 | 19.7 | 21.8 | 15.3 | 14.2 | 17.3 |
| US Power Doppler† | |||||
| Grade 0 | 40.2 | 71.6 | 82.5 | 78.0 | 75.1 |
| Grade 1 | 17.9 | 9.2 | 8.5 | 9.3 | 9.5 |
| Grade 2 | 32.5 | 13.9 | 4.9 | 9.3 | 10.8 |
| Grade 3 | 9.4 | 5.3 | 4.1 | 3.4 | 4.6 |
*
numbers provided are the percentage of joints in a specific category.
†
see Methods section for detailed description of the ultrasonographic grading systems.
MCP, metacarpophalangeal; MTP, metatarsophalangeal; PIP, proximal interphalangeal; US, ultrasound.