Table 1. Baseline patient characteristics.
| Variable | OL-HDF |
|---|---|
| Age (years; mean, s.d.) | 66.7±14.7 |
| Gender (male; %) | 63 |
| Height (cm; mean, s.d.) | 163.8±9.5 |
| Pre-dialysis weight (kg; mean, s.d.) | 72.6±15.7 |
| Pre-dialysis systolic blood pressure (mmHg; mean, s.d.) | 142.2±24.4 |
| Pre-dialysis diastolic blood pressure (mmHg; mean, s.d.) | 69.8±13.7 |
| Pre-dialysis heart rate (beats/min) | 73.8±11.2 |
| Renal disease | |
| Diabetes (%) | 30 |
| Hypertension (%) | 18 |
| Glomerulonephritis (%) | 9 |
| Urinary obstruction (%) | 1 |
| Polycystic (%) | 6 |
| Coronary artery disease (%) | 7 |
| Comorbidities | |
| Congestive heart failure (%) | 16 |
| Peripheral vascular disease (%) | 13 |
| Cerebrovascular disease (%) | 13 |
| Chronic pulmonary disease (%) | 9 |
| Tumor without metastasis (%) | 9 |
| Charlson Comorbidity Index (mean, s.d.) | 4.98±2.07 |
| Vascular access | |
| Fistula (N; %) | 2418 (66) |
| Catheters (N; %) | 952 (26) |
| Grafts (N; %) | 293 (8) |
| Laboratory values | |
| Hemoglobin (g/dl; mean, s.d.) | 10.15±1.29 |
| Albumin (g/dl; mean, s.d.) | 3.72±0.47 |
| Ferritin (ng/ml; median, IQR) | 205.05 (256.24) |
| Creatinine (mg/dl; mean, s.d.) | 6.3±2.04 |
| PTH (ng/l; median, IQR) | 261.5 (312.25) |
| Calcium (mg/dl; mean, s.d.) | 8.67±0.62 |
| Sodium (mmol/l; mean, s.d.) | 137.8±3.2 |
| Phosphate (mg/dl; mean, s.d.) | 4.55±1.12 |
| Potassium (mmol/l; mean, s.d.) | 4.87±0.66 |
| CRP (mg/l; median, IQR) | 7.19 (18.26) |
Abbreviations: CRP, C-reactive protein; IQR, interquartile range; OL-HDF, online hemodiafiltration; PTH, parathormone.