| Variable | Category | Frequency (%) |
| Haemoglobin level | ||
| Low | 76 | 73.1 |
| Normal | 28 | 26.9 |
| Total | 104 | 100 |
| Functional category (KFS) | ||
| Average | 51 | 49.0 |
| High | 53 | 51.0 |
| Total | 104 | 100 |
| Comorbidity | ||
| Yes | 103 | 99.0 |
| No | 1 | 1.0 |
| Total | 104 | 100 |
| Dialysis modality | ||
| Peritoneal | 5 | 4.8 |
| Haemodialysis | 99 | 95.2 |
| Total | 104 | 100 |