Table 2.
Summary of dialysis characteristics for each study phase
| Variables | MCO-HD | HFX-HD | MCO-HDF | HFX-HDF |
|---|---|---|---|---|
| Qb (ml/min) | 367.1±23.9 | 371.7±27.1 | 371.6±15.9 | 365.7±25.5 |
| Qd (ml/min) | 538.3±52.0c | 547.1±48.0 | 449.4±18.6b,d | 448.8±29.9a |
| TMP (mm Hg) | 29.6±4.5c | 33.8±11.5 | 175.2±25.8b,d | 168.7±22.3a |
| RBV minimum (%) | 81.5±6.0 | 81.9±5.9 | 79.9±5.2 | 79.3±5.5 |
| spKt/V | 1.6±0.3c | 1.7±0.5 | 1.8±0.4d | 1.9±0.4 |
| Intradialytic weight change (kg) | 2.4±0.8 | 2.3±0.8 | 2.5±0.8 | 2.4±0.8 |
Data presented as mean±SD.
All comparisons executed by using the pairwise dependent sample t test. Study phases: MCO-HD, hemodialysis using a medium cutoff dialyzer membrane; HFX-HD, high-flux hemodialysis; MCO-HDF, hemodiafiltration using a medium cutoff dialyzer membrane; HFX-HDF, high-flux hemodiafiltration. Qb, blood flow; Qd, dialysate flow; TMP, transmembranous pressure; RBV, relative blood volume; UFV, ultrafiltration cutoff
Hypothesis testing:
a
P < 0.001 comparing HFX-HDF with HFX-HD.
b
P < 0.001 comparing MCO-HDF with HFX-HD.
c
P < 0.001 comparing MCO-HD with HFX-HDF.
d
P < 0.001 comparing MCO-HDF with MCO-HD.