Table 2.

Relationship between Na⁺ and K⁺ excretion and Na⁺: K⁺ excretion ratio and systolic and diastolic blood pressure in patients with RA

Parameters	24 h Na+ excretion Adjusted β (95% CI)	P- value	24 h K+ excretion Adjusted β (95% CI)	P-value	Na+: K+ ratio Adjusted β (95% CI)	P- value
Systolic Blood Pressure	−0.02 (−1.09 to 1.04)	0.97	−0.48 (−3.32 to 2.36)	0.74	2.0 (−2.3 to 6.3)	0.36
Diastolic Blood Pressure	−0.28 (−0.92 to 0.35)	0. 38	−1.79 (−3.46 to −0.13)	0.04	2.1 (−0.4 to 4.7)	0.10

Na⁺, estimated 24 hour urinary sodium excretion (grams); K⁺, estimated urinary potassium excretion (grams), Na⁺:K⁺ ratio excretion ratio.

^*Linear regression was performed adjusting for age, sex, and race