Table 2.
Patient characteristics by preoperative arterial diameter
| Arterial Diameter | <3 mm | 3–3.9 mm | 4–4.9 mm | ≥5 mm | P Value |
|---|---|---|---|---|---|
| Total, N | 73 (25%) | 80 (27%) | 81(28%) | 58 (20%) | |
| Age, yr, mean±SD | 48±14 | 52±16 | 53±15 | 58±12 | 0.002 |
| Sex, men (%) | 45 (62%) | 28 (35%) | 57 (70%) | 49 (84%) | <0.001 |
| Race, black (%) | 59 (81%) | 65 (81%) | 67 (83%) | 51 (88%) | 0.70 |
| Diabetes mellitus, N (%) | 35 (48%) | 38 (48%) | 45 (56%) | 33 (57%) | 0.60 |
| Coronary artery disease, N (%) | 8 (11%) | 17 (21%) | 25 (31%) | 18 (31%) | 0.01 |
| Peripheral vascular disease, N (%) | 6 (8%) | 12 (15%) | 11 (14%) | 10 (17%) | 0.46 |
| Cerebrovascular disease, N (%) | 10 (14%) | 15 (19%) | 18 (22%) | 14 (24%) | 0.43 |
| Obesity (BMI≥30 kg/m2), N (%) | 32 (44%) | 38 (48%) | 40 (49%) | 28 (48%) | 0.92 |
| LVEF<55%, N (%) | 13 (18%) | 16 (20%) | 17 (21%) | 12 (21%) | 0.96 |
| AVF location, upper arm, N (%) | 11 (15%) | 68 (85%) | 77 (95%) | 55 (95%) | <0.001 |
| Preoperative systolic BP, mm Hg, mean±SD | 148±27 | 142±22 | 148±27 | 147±24 | 0.42 |
| Preoperative diastolic BP, mm Hg, mean±SD | 85±15 | 76±20 | 85±17 | 83±18 | 0.004 |
n=292 (eight missing values). BMI, body mass index.