Table 2. History of vascular access creation and complications.
| History | Number | Percentage of study populations |
| Current access | ||
| Tunnelled CVC | 37 | 56 |
| AVF | 25 | 38 |
| AVG | 3 | 5 |
| Temporary CVC | 1 | 2 |
| CVC group sub-analysis | ||
| Patients using a CVC at present | 37 | 56 |
| With no previous AVG or AVF | 8 | 12 |
| With 1 previous AVG or AVF | 14 | 21 |
| With > 1 previous AVG or AVF | 15 | 23 |
| Initial vascular access | ||
| CVC | 63 | 95 |
| Non-tunnelled CVC | 38 | 58 |
| Tunnelled CVC | 25 | 38 |
| Pre-emptive AVF | 3 | 5 |
| Number of AVF or AVG attempts | ||
| No previous AVF or AVG | 8 | 12 |
| 1 AVF or AVG | 29 | 44 |
| 2 AVF or AVG | 15 | 23 |
| 3 AVF or AVG | 13 | 20 |
| 4 AVF or AVG | 1 | 2 |
| Complications | ||
| Central venous stenosis or occlusion (of 66 patients) | 17 | 26 |
| Aneurysmal dilatation (of 101 AVFs) | 15 | 15 |
| Aneurysmal and still in use (of 15) | 9 | 60 |
| Aneurysmal and abandoned (of 15) | 6 | 40 |
| Dialysis access-associated steal síndrome | 0 | 0 |
CVC, central venous catheter; AVF, arteriovenous fistula; AVG, arteriovenous graft.