Table 2

Correlation of COMP-C3b with clinical variables in RA

Spearman r

P value

CRP

0.3551

0.0004

DAS28-ESR

0.3770

0.0002

DAS28-CRP

0.2888

0.0043

CDAI

0.2563

0.0109

SDAI

0.2779

0.0061

28 swollen joints

0.2109

0.0371

28 tender joints

0.2313

0.0220

ESR

0.3556

0.0004

Hb

-0.2289

0.0256

VAS global

0.0863

0.3983

VAS pain

0.1413

0.1652

CDAI, clinical disease activity index; CRP, C-reactive protein; DAS, disease activity score; ESR, erythrocyte sedimentation rate; Hb, hemoglobin concentration; SDAI, simplified disease activity index; VAS, visual analogue scale.

Happonen et al. Arthritis Research & Therapy 2012 14:R15   doi:10.1186/ar3694