Table 3.
Pairwise correlation between DAS28CRP, Krenn score, EULAR-OMERACT US combined score and RAMRIS MRI synovitis score of the RCJ of the wrist
| All patients and all visits | Krenn score | Larsen X-ray score* | EULAR-OMERACT US combined score | RAMRIS MRI synovitis score |
| DAS28CRP | r=0.31 p= 0.002 | r=−0.02 p=0.77 |
r=
0.27
p= 0.01 |
r=
0.26
p= 0.01 |
| Krenn score | – |
r=
0.35
p= 0.03 |
r=
0.72
p< 0.001 |
r=
0.66
p< 0.001 |
| Larsen X-ray score* | – |
r=
0.35
p= 0.02 |
r=
0.53
p< 0.001 |
|
| EULAR-OMERACT US combined score | – |
r=
0.61
p< 0.001 |
Significant correlations in bold. Comparison by unadjusted linear regression with clusterrobust standard errors.
*Total Larsen wrist score (all quadrants)
DAS28CRP, disease activity score in 28 joints with CRP level included; RCJ, radiocarpel joint; US, ultrasound.