Table 1. Clinical characteristics of hemodialysis patients used for the development of a simplified equation for the calculation of creatinine index.
| Parameters | |
| Number | 549 |
| Men, n (%) | 330 (60.1) |
| Age (years) | 70.1 [57.0–78.7] |
| Diabetes, n (%) | 143 (26.0) |
| Chronic obstructive pulmonary disease, n (%) | 79 (14.4) |
| Chronic hepatitis, n (%) | 86 (15.7) |
| History of kidney transplantation, n (%) | 89 (16.3) |
| Ischemic cardiopathy, n (%) | 154 (28.1) |
| Renal replacement modality (%HDF/HD) | 59.8/40.2 |
| Post-dialysis weight (kg) | 64.7 [55.4–75.2] |
| Treatment time (min) | 219±33 |
| Pre-dialysis serum creatinine concentrations (μmol/l) | 733 [616–857] |
| Residual renal function (ml/min) | 0 |
| Urea reduction ratio (%) | 78 [75–81] |
| spKt/V urea | 1.8 [1.6–2.0] |
| eqKt/V urea | 1.6 [1.4–1.7] |
| Creatinine index (mg/kg/day) | 18.9 [15.4–22.9] |
| C reactive protein (mg/l) | 7.1 [3.0–16.7] |
| Serum albumin (g/l) | 36.9±4.6 |
| Total cholesterol (mmol/l) | 5.02±1.28 |
| Triglycerides (mmol/l) | 1.72 [1.21–2.65] |
| LDL cholesterol (mmol/l) | 2.96±1.00 |
Note: Qualitative variables expressed as number (percent). Quantitative variables expressed as mean ± SD for normally distributed variables or median [interquartile range] for non normally distributed variables;
Abbreviations: HDF, hemodiafiltration; HD, hemodialysis; min, minutes.