Effects of different potassium-lowering regimens on acute hyperkalemia in hemodialysis patients: a real-world, retrospective study

Table 3 Changes of serum sodium, calcium and magnesium (mmol/L) before and after treatment

	IG group	SPS group	SZC group	IG + SZC group	P
Serum sodium before treatment	138.0 (135.0,141.0)	138.0 (136.0,139.5)	138.0 (136.0,140.0)	136.5 (135.0,139.25)	0.724
Serum sodium after treatment	139.0 (134.0,140.25)	138.0 (135.0,139.0)	137.0 (135.0, 139.25)	136.5 (134.75,140.0)	0.679
Decrease of serum sodium	0.0 (− 1.0,2.0)	0.0 (− 1.0,1.0)	0.0 (− 1.0, 3.0)	0.0 (− 2.25,3.0)	0.815
Serum calcium before treatment	2.33 (2.20,2.45)	2.20 (2.04, 2.45)	2.27 (2.04, 2.42)	2.29 (2.21,2.43)	0.291
Serum calcium after treatment	2.27^c (2.17,2.37)	2.22^c (1.98, 2.36)	2.23 (2.02, 2.38)	2.18^c (2.12,2.35)	0.317
Decrease of serum calcium	0.05 (0.0,0.11)	0.05 (0.03, 0.12)	0.05 (− 0.03, 0.10)	0.07 (0.02,0.15)	0.665
Serum magnesium before treatment	1.15 (1.07,1.27)	1.08 (1.15, 1.31)	1.20 (1.05, 1.36)	1.25 (1.15,1.33)	0.349
Serum magnesium after treatment	1.10 (1.05,1.29)	1.10^c (1.03, 1.27)	1.20 (1.09, 1.33)	1.20^c (1.07,1.30)	0.663
Decrease of serum magnesium	0.03 (− 0.03,0.06)	0.05 (− 0.02, 0.08)	0.03 (− 0.03, 0.08)	0.06 (− 0.02,0.09)	0.398

^aThere was no significant difference between IG and SZC groups in pairwise comparison, and the rest were statistically significant (P < 0.01)
^bIn pairwise comparison, there was no significant difference except IG group and SPS group (P < 0.05)
^cStatistically significant difference compared with pretreatment (P < 0.01)
^dP value of SPS group compared with SZC group

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