Table 4 Factors significantly associated with SBP decrease index (%) in the final multivariate model.

From: Serum sodium variation is a major determinant of peridialytic blood pressure trends in haemodialysis outpatients

Independent variablesa

Final model

β (95% CI)

P value

Serum Na decrease

1.19 (0.34 to 2.05)

0.006

Age

− 1.33 (− 2.43 to − 0.22)

0.018

Age2

− 1.26 (− 2.05 to − 0.47)

0.002

BMI

1.99 (1.01 to 2.97)

 < 0.001

Antihypertensive medication

− 1.89 (3.70 to − 0.09)

0.039

Serum albumin

1.66 (0.75 to 2.58)

 < 0.001

Dialysis vintageb

1.24 (0.26 to 2.22)

0.013

Dialysate calcium

− 0.98 (− 1.86 to − 0.11)

0.027

UFR

2.13 (1.24 to 3.02)

 < 0.001

Kt/V

1.21 (0.24 to 2.17)

0.014

  1. SBP systolic blood pressure, Na sodium, BMI body mass index, UFR ultrafiltration rate.
  2. aStandardized to a mean of 0 and a SD of 1.
  3. bLog transformed.
  4. Bold values correspond to p < 0.05.
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