Table 1 Comparisons of patient characteristics among tertiles of total 24-h PVC count

Age (years)

68.24 ± 10.54

74.61 ± 7.41

65.94 ± 8.59*

Sex (F:M) (%)

47.1

27.8

11.8

Dialysis vintage (days)

1800 (310, 2947)

811 (63, 2286)

2509 (731, 3124)

Diabetes (%)

70.6

61.1

58.8

BMI

21.5 ± 3.5

20.8 ± 3.1

22.8 ± 4.2

ACS history (%)

23.5

22.2

41.2

LAD (mm)

42.1 ± 6.5

43.5 ± 5.10

45.8 ± 7.1

LVEF (%)

66.0 ± 7.3

67.6 ± 10.1

53.0 ± 14.8*

IVST

11.0 ± 1.4

10.5 ± 0.9

10.6 ± 1.8

LVDd

45.9 ± 4.2

49.5 ± 6.0

51.1 ± 7.7

Basal QTc (msec)

413 (402, 437)

429 (381, 450)

411 (397, 423)

BUN (mg/dL)

50.0 ± 18.0

50.9 ± 17.2

49.9 ± 15.8

Predialysis sHCO₃⁻ (mEq/L)

21.4 ± 2.7

21.4 ± 3.2

22.1 ± 2.4

Dialysis change in sHCO₃⁻ (mEq/L)

4.2 ± 2.5

4.0 ± 1.9

3.4 ± 1.9

Predialysis sNa⁺ (mEq/L)

134.2 ± 3.9

132.9 ± 4.4

133.1 ± 5.0

Dialysis change in sNa⁺ (mEq/L)

0.3 ± 2.2

− 0.02 ± 2.6

2.1 ± 3.5*

Predialysis sK⁺ (mEq/L)

4.43 ± 0.92

4.12 ± 0.74

4.24 ± 0.76

Dialysis change in sK⁺ (mEq/L)

− 1.14 ± 0.69

− 0.96 ± 0.54

− 1.05 ± 0.53

Predialysis sCa²⁺ (mmol/L)

1.16 ± 0.10

1.13 ± 0.09

1.19 ± 0.09

Dialysis change in sCa²⁺ (mmol/L)

0.07 ± 0.07

0.08 ± 0.07

0.08 ± 0.04

Predialysis sMg²⁺ (mg/dL)

2.40 (2.30, 2.60)

2.50 (2.25, 2.60)

2.50 (2.40, 2.73)

Dialysis change in sMg²⁺ (mg/dL)

− 0.30 (− 0.53, − 0.20)

− 0.30 (− 0.50, − 0.15)

− 0.35 (− 0.40, − 0.25)

Haemoglobin (g/dL)

10.3 ± 1.3

10.1 ± 1.6

11.0 ± 2.2

MAP (mmHg)

130 (122, 133)

125 (114, 131)

117 (103, 123)

UFR (mL/kg/hour)

11.4 ± 5.4

12.6 ± 4.6

9.8 ± 3.6

BNP (pg/mL)

191.5 (70.5, 377.5)

191.0 (98.8, 390.3)

411.0* (262.5, 1099.8)

Mean dialysate temperature (°C)

36.2 (36.1, 36.3)

36.2 (36.1, 36.4)

36.2 (36.1, 36.5)