Table 2.
The prevalence of US abnormalities in the RA remission group was equivalent for both DAS28-CRP and ACR/EULAR Boolean remission. Statistical significance of difference in observations between those who did and did not satisfy ACR/EULAR Boolean remission is calculated by Fisher’s exact test.
| Criterion | US parameter | Remission definition |
p | |
|---|---|---|---|---|
| DAS28-CRP < 2.4 (n = 66) |
ACR/EULAR Boolean (n = 40) |
|||
| n (%) patients with total score ⩾1 | SGS | 66 (100) | 40 (100) | n/a |
| SPD | 17 (26) | 10 (25) | >0.99 | |
| TGS | 29 (44) | 17 (43) | 0.80 | |
| Erosions | 45 (68) | 25 (63) | 0.28 | |
| n (%) patients with any individual joint score ⩾2 | SGS | 48 (73) | 27 (68) | 0.27 |
| SPD | 8 (12) | 6 (15) | 0.46 | |
ACR, American College of Rheumatology; CRP, C-reactive protein; DAS28, disease activity score in 28 joints; EULAR, European League Against Rheumatism; RA, rheumatoid arthritis; SGS, synovial greyscale; SPD, synovial power Doppler; TGS, tenosynovial greyscale; US, ultrasound.