Association of ultrasound (US) features and pain upon palpation in 55 patients with hand osteoarthritis
| US feature score | N | Adjusted OR* (95% CI) | Adjusted OR† (95% CI) |
|---|---|---|---|
| GS synovitis | |||
| 0 | 1289 | 1 | 1 |
| 1 | 244 | 2.2 (1.6 to 3.0) | 2.1 (1.5 to 2.8) |
| 2 | 84 | 5.4 (3.2 to 8.8) | 4.7 (2.8 to 7.8) |
| 3 | 33 | 4.5 (2.2 to 9.0) | 4.0 (1.9 to 8.2) |
| Effusion | |||
| 0 | 1337 | 1 | 1 |
| 1 | 227 | 2.3 (1.6 to 3.0) | 2.0 (1.5 to 2.6) |
| 2 | 61 | 4.9 (3.0 to 7.9) | 3.8 (2.3 to 6.1) |
| 3 | 25 | 4.4 (2.0 to 9.4) | 3.7 (1.8 to 7.6) |
| Synovial thickening | |||
| 0 | 1529 | 1 | 1 |
| 1 | 76 | 2.3 (1.4 to 3.8) | 1.3 (0.7 to 2.4) |
| 2+3 | 37+8 | 4.9 (2.2 to 11.0) | 2.6 (1.1 to 6.3) |
| PDS | |||
| 0 | 1511 | 1 | 1 |
| 1 | 107 | 1.9 (1.3 to 2.7) | 1.4 (1.0 to 2.1) |
| 2+3 | 30+2 | 4.1 (2.2 to 7.9) | 2.0 (0.8 to 4.9) |
↵* Adjustment made for age, gender, BMI.
↵† In addition, the following adjustments were made: GS synovitis for PDS, effusion for synovial thickening and PDS, synovial thickening for effusion and PDS, PDS for synovial thickening and effusion.
BMI, body mass index; GS, grey scale; PDS, power Doppler signal.