Table 2. Patient characteristics for the matched populations.
| Variable | Lowest convection volume tertiles (<54.6 l/week) | Highest convection volume tertiles (>64.8 l/week) | P-value |
|---|---|---|---|
| Number of patients | 204 | 204 | |
| Age (years; mean±s.d.) | 63.3±14.6 | 64.6±14.5 | 0.36 |
| Gender (male; %) | 71 | 67 | 0.52 |
| Charlson Comorbidity Index | 4.5 | 4.7 | 0.33 |
| Vascular access | |||
| Fistula (%) | 78 | 84 | 0.15 |
| Catheter (%) | 10 | 8 | 0.42 |
| Graft (%) | 12 | 8 | 0.27 |
| CRP (mg/l; median, IQR) | 5.9 (14.8) | 7.3 (15.6) | 0.31 |
| Albumin (g/dl; mean±s.d.) | 3.7±0.5 | 3.7±0.5 | 0.34 |
| Kt/V (mean±s.d.) | 1.5±0.2 | 1.5±0.2 | 0.15 |
Abbreviations: CRP, C-reactive protein; IQR, interquartile range.