. Author manuscript; available in PMC: 2019 Apr 1.

Published in final edited form as: Clin Rheumatol. 2017 Dec 14;37(4):895–900. doi: 10.1007/s10067-017-3935-8

Table 3.

Association of disease activity score and inflammatory markers with estimated 24 hour urinary Na⁺, K⁺, and Na⁺: K⁺ ratio in patients with rheumatoid arthritis

Parameters	Na⁺ (grams)	K⁺ (grams)	Na⁺:K⁺ excretion ratio
VCAM-1	rho= 0.01	rho= -0.03	rho= 0.06
VCAM-1	p= 0.88	p= 0.67	p= 0.46
CRP	rho= −0.1	rho= −0.11	rho= −0.05
CRP	p= 0.17	p= 0.16	p= 0.54
IL-6	rho= −0.04	rho= −0.10	rho= 0.01
IL-6	p= 0.56	p= 0.19	p= 0.91
TNF-α	rho= -0.09	rho= 0.01	rho= −0.11
TNF-α	p= 0.27	p= 0.90	p= 0.14
DAS28	rho= −0.007	rho= 0.009	rho= 0.009
DAS28	p= 0.93	p= 0.91	p= 0.91

VCAM 1: Vascular Cell Adhesion Molecule-1, CRP: C-reactive protein, IL-6: interleukin-6, TNF-α: tumor necrosis factor alpha, DAS28: Disease Activity Score 28, n=161.

Correlation analysis was performed using Spearman Correlation. P value of <0.05 were considered statistically significant.