Table 6.
Association of preoperative ultrasound parameters with AVF outcomes: Arterial and venous diameters
| AVF | <3 mm | 3–3.9 mm | 4–4.9 mm | ≥5 mm | P Value |
|---|---|---|---|---|---|
| Arterial diametera | |||||
| Total AVFs, N | 73 | 80 | 81 | 58 | |
| Failure to mature, N (%) | 30 (41%) | 35 (44%) | 26 (32%) | 10 (17%) | 0.007 |
| Assisted maturation, N (%) | 19 (26%) | 17 (21%) | 15 (18%) | 14 (24%) | |
| Unassisted maturation, N (%) | 24 (33%) | 28 (35%) | 40 (49%) | 34 (59%) | |
| Venous diameterb | |||||
| Total AVFs, N | 55 | 111 | 80 | 49 | |
| Failure to mature, N (%) | 24 (44%) | 47 (42%) | 20 (25%) | 12 (24%) | 0.02 |
| Assisted maturation, N (%) | 14 (25%) | 22 (28%) | 18 (22%) | 10 (20%) | |
| Unassisted maturation, N (%) | 17 (31%) | 42 (52%) | 42 (52%) | 27 (55%) |
a
Missing eight values.
b
Missing five values.