Table 3 Dialysis parameters and serum concentrations of urea, creatinine, β-trace protein, β2-microglobulin and cystatin C before (BD) and after (AD) haemodialysis

Dialysis length, h

3.7 ± 0.5

3.7 ± 0.3

4.2 ± 0.2^{** §§}

Blood flow, mL/min

322 ± 40

368 ± 21^x

330 ± 42

Dialysate flow, mL/min

500

500

500

Ultrafiltration, kg

2.8 ± 0.8

3.4 ± 0.9^x

3.2 ± 1.0

Urea BD, mg/dL

145 ± 45

159 ± 40

122 ± 45

Urea AD, mg/dL

45 ± 20

48 ± 15

36 ± 18

Creatinine BD, mg/dL

9.5 ± 3.7

11.2 ± 1.9^x

10.5 ± 3.5

Creatinine AD, mg/dL

3.7 ± 1.3

4.2 ± 0.9

3.9 ± 1.4

β-Trace protein BD, mg/L

11.8 ± 4.8

10.9 ± 2.2

8.11 ± 2.4^**§

β-Trace protein AD, mg/L

14.8 ± 6.6

8.0 ± 2.5

3.8 ± 1.9^***§§§

β2-Microglobulin BD, mg/L

39.4 ± 15.3

24.4 ± 3.6^xx

29.0 ± 12.0

β2-Microglobulin AD, mg/L

42.9 ± 18.0

9.1 ± 1.4^xxx***

11.4 ± 5.1^§§§

Cystatin C BD, mg/L

7.4 ± 1.9

9.36 ± 2.6^xx

5.29 ± 0.9^***§§

Cystatin C AD, mg/L

7.4 ± 2.4

2.4 ± 0.6^xxx

1.9 ± 0.8^§§§