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 visitsKrenn scoreLarsen X-ray score*EULAR-OMERACT US combined scoreRAMRIS MRI synovitis score
DAS28CRPr=0.31 p=0.002r=−0.02 p=0.77r=0.27
p=0.01
r=0.26
p=0.01
Krenn scorer=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 scorer=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.