Table 1 Baseline clinical characteristics in the control and cartinine groups

Age, y

64.3 ± 12.9

64.7 ± 12.0

0.892

Male gender, n (%)

14 (53.9)

14 (51.9)

0.887

Dialysis duration, months

141.2 ± 83.8

149.1 ± 105.2

0.763

Smoking, n (%)

9 (34.6)

9 (33.3)

0.923

Alcohol, n (%)

8 (30.8)

8 (29.6)

0.930

Diabetes mellitus, n (%)

13 (50.0)

14 (51.9)

0.895

Systolic blood pressure before dialysis, mm Hg

138.0 ± 12.1

134.0 ± 18.8

0.360

Diastolic blood pressure before dialysis, mm Hg

73.4 ± 10.6

70.5 ± 14.7

0.408

Body mass index, kg/m²

21.2 ± 4.5

22.9 ± 4.1

0.170

Cardiothoracic ratio, %

53.1 ± 5.8

53.3 ± 4.9

0.922

Left ventricular ejection fraction, %

52.2 ± 11.9

53.2 ± 11.9

0.696

Left ventricular mass index, g/m²

126.6 ± 24.8

126.4 ± 24.1

0.962

Mitral early to atrial (E/A) wave velocity ratio

1.2 ± 0.6

1.1 ± 0.6

0.875

Blood hemoglobin, g/L

106.8 ± 10.8

106.1 ± 9.0

0.800

Serum albumin, g/L

37.8 ± 2.9

37.9 ± 3.4

0892

Serum calcium, mmol/L

2.2 ± 0.1

2.2 ± 0.1

0.451

Serum inorganic phosphorus, mmol/L

1.6 ± 0.4

1.6 ± 0.3

0.810

Serum total cholesterol, mmol/L

4.1 ± 0.6

3.9 ± 1.1

0.515

Serum ferritin, pmol/L

273.9 ± 185.8

281.8 ± 197.7

0.859

Serum intact parathyroid hormone, ng/L

176.1 ± 99.3

133.4 ± 106.0

0.136

Serum C-reactive protein, mg/L

2.5 ± 2.2

2.2 ± 2.6

0.635

Plasma B-type natriuretic peptide, ng/L

291.2 ± 174.6

249.2 ± 229.1

0.457

HOMA-IR, mmol/L・μU/ml

5.9 ± 1.9

5.3 ± 2.3

0.294

BMIPP summed score

18.2 ± 6.0

18.9 ± 11.3

0.794

Medications

α ₁ blockers, n (%)

2 (7.7)

3 (11.1)

0.677

β blockers, n (%)

17 (65.4)

17 (63.0)

0.858

Calcium blockers, n (%)

7 (26.9)

7 (25.9)

0.936

RAS inhibitors, n (%)

8 (30.8)

9 (33.3)

0.845

Nitrates, n (%)

3 (11.5)

3 (11.1)

0.962

Antiplatelet drugs, n (%)

16 (61.5)

18 (66.7)

0.704

Anticoagulation drugs, n (%)

3 (11.5)

5 (18.5)

0.487

Statins, n (%)

7 (26.9)

7 (25.9)

0.936