Table 3

Cross-sectional associations at the 10-year follow-up between NT-proBNP (dependent variable) and rheumatoid arthritis disease activity, controlling for cardiovascular risk factors


Adjusted linear regression
Multivariate linear regression


β coefficients
P value
β coefficients
P value

Age
1.04 (1.03–1.05)
< 0.001
1.04 (1.03–1.05)
< 0.001
Male gender
0.92 (0.64–1.31)
0.64
0.76 (0.53–1.04)
0.09
Body mass indexa
0.96 (0.93–0.98)
0.001


Atherogenic indexa
0.95 (0.86–1.04)
0.25


Creatininea
1.02 (1.01–1.02)
0.001
1.01 (1.00–1.02)
0.04
C-reactive proteina
1.01 (1.0–1.03)
0.06
1.02 (1.00–1.02)
0.03
RF IgM-positivea, b
0.92 (0.72–1.19)
0.53


Anti-CCP-positivea, b
1.14 (0.88–1.45)
0.33


Ritchie scorea
1.00 (0.99–1.01)
0.87


DAS28a
1.05 (0.96–1.16)
0.27


HAQa
1.15 (0.94–1.41)
0.17


Sharp scorea
1.002 (1.00–1.01)
0.17


Disease durationa
1.14 (1.02–1.27)
0.02
1.15 (1.03–1.27)
0.01

R2 adjusted


0.38
< 0.001

aAge- and gender-adjusted; bdichotomized variable. anti-CCP, anti-cyclic citrullinated peptide antibody; DAS28, disease activity score of 28 joints; HAQ, Stanford Health Assessment Questionnaire; NT-proBNP, N-terminal pro-brain natriuretic peptide; RF, rheumatoid factor; Ritchie score, Ritchie articular index; Sharp score, van der Heijde modified Sharp criteria.

Provan et al. Arthritis Research & Therapy 2008 10:R70   doi:10.1186/ar2442