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Table 2 Trajectory of clinical data between the two groups

From: Sodium zirconium cyclosilicate hydrate reduces medical expenses compared with hemodialysis in patients with acute hyperkalemia

Factor

SZC group (N = 14)

HD group (N = 7)

p value

Data at the onset of acute hyperkalemia

 Urgent hospitalization (number, %)

2 (14.3)

7 (100.0)

 < 0.001*

 Electrocardiogram (number, %)

10 (71.4)

7 (100.0)

0.25

 Complete atrioventricular block (number, %)

1 (10.0)

5 (71.4)

0.035*

 Temporary pacemaker insertion (number, %)

0 (0.0)

2 (28.6)

0.10

 Serum creatinine (mg/dL)

2.60 [1.96, 3.06]

4.77 [3.06, 5.61]

0.044*

 Serum potassium (mEq/L)

6.8 [6.3, 7.0]

8.0 [6.6, 8.3]

0.13

 Serum sodium chloride gap (mEq/L)

31 [26, 33]

34 [30, 35]

0.29

Hyperkalemia treatment other than SZC or HD (number, %)

2 (14.3)

4 (57.1)

0.12

Therapeutic duration (days)

3 [2, 7]

1 [1]

0.0026*

Post-treatment data

 Serum creatinine (mg/dL)

2.40 [2.14, 3.59]

2.84 [1.88, 3.55]

0.94

 Serum potassium (mEq/L)

4.7 [4.4, 5.3]

4.8 [4.4, 5.3]

0.85

 Serum sodium chloride gap (mEq/L)

32 [31, 35]

33 [33, 34]

0.82

Data at 3-month follow-up

   

 SZC use (number, %)

4 (30.8)

0 (0.0)

0.25

 Other potassium adsorbent use (number, %)

6 (46.2)

3 (42.9)

1.00

 Use of RAS inhibitors (number, %)

9 (64.2)

3 (42.8)

0.40

 Use of mineralocorticoid receptor antagonist (number, %)

4 (28.6)

1 (14.3)

0.62

 Serum creatinine (mg/dL)

2.22 [1.66, 3.27]

1.21 [1.00, 3.39]

0.27

 Serum potassium (mEq/L)

4.8 [4.6, 4.9]

4.7 [4.5, 5.1]

0.93

 Serum sodium chloride gap (mEq/L)

34 [32, 37]

34 [33, 35]

0.83

  1. Continuous variables are presented as median and interquartile. Categorical variables are presented as number and percentage. *p < 0.05 by Mann–Whitney U-test for continuous variables and Fisher’s exact test for categorical variables
  2. Hyperkalemia treatment other than SZC or HD includes furosemide infusion, calcium glucuronate infusion, and intravenous insulin therapy
  3. Other potassium adsorbent includes calcium polystyrene sulfonate and sodium polystyrene sulfonate
  4. Therapeutic duration is the number of days from the day after the onset of hyperkalemia until the first confirmed decrease in potassium
  5. HD hemodialysis, RAS renin–angiotensin system, and SZC sodium zirconium cyclosilicate