Table 2

Associations between CXCL13 and clinical and ultrasonographic measures of disease activity at baseline

Univariable analyses

Multivariable analyses*

Spearman R (95% CI)

P

Partial correlation

P

DAS44

0.35 (0.21 to 0.48)

< 0.001

0.30

< 0.001

SDAI

0.28 (0.12 to 0.43)

< 0.001

0.22

< 0.001

SJC

0.28 (0.12 to 0.43)

< 0.001

0.26

< 0.001

TJC

0.10 (-0.06 to 0.26)

0.22

-

-

RAI

0.12 (-0.04 to 0.28)

0.14

0.06

0.21

CRP

0.42 (0.29 to 0.54)

< 0.001

0.38

< 0.001

ESR

0.41 (0.27 to 0.53)

< 0.001

0.35

< 0.001

US-GS score

0.27 (0.10 to 0.44)

0.003

0.31

< 0.001

US-PD score

0.26 (0.08 to 0.42)

0.005

0.32

< 0.001

Results from Spearman R and multivariable linear regression analyses.*Adjusted for age, gender, symptoms duration, ACPA positivity. CRP, C-reactive protein; DAS44, Disease Activity Score in 44 joints; ESR, erythrocyte sedimentation rate; RAI, Ritchie Articular Index; SDAI, Simplified Disease Activity Score; SJC, swollen joint count; TJC, tender joint count; US-GS, Grey-Scale; US-PD, Power Doppler

Bugatti et al. Arthritis Research & Therapy 2012 14:R34   doi:10.1186/ar3742