HD

On-line HDF

p-value

Interdialytic body weight gain (kg)

A arm

2.52 ± 0.6

2.57 ± 0.7

0.754

Interdialytic body weight gain (kg)

B arm

2.53 ± 0.6

2.54 ± 0.5

0.889

UF for each dialysis session (L)

A arm

2.85 ± 0.6

2.93 ± 0.6

0.53

UF for each dialysis session (L)

B arm

2.92 ± 0.6

3.05 ± 0.6

0.263

Frequency of IDH^†

A arm

44.6 ± 17.0

38.6 ± 17.4

0.272

Frequency of IDH^†

B arm

42.8 ± 16.7

28.6 ± 7.9

0.093

Absolute value of OH (L)

A arm

0.9 ± 0.5

0.9 ± 0.6

0.875

Absolute value of OH (L)

B arm

1.4 ± 1.5

1.3 ± 1.4

0.655

Frequency of hyper/hypovolemia^‡

A arm

2.3 ± 2.9

3.0 ± 3.2

0.107

Frequency of hyper/hypovolemia^‡

B arm

3.0 ± 3.6

4.0 ± 3.1

0.197