Table 3.
Patient characteristics by preoperative venous diameter
| Venous Diameter | <3 mm | 3–3.9 mm | 4–4.9 mm | ≥5 mm | P Value |
|---|---|---|---|---|---|
| Total, N | 55 (19%) | 111 (38%) | 80 (27%) | 49 (17%) | |
| Age, yr, mean±SD | 51±14 | 54±14 | 52±16 | 53±13 | 0.82 |
| Sex, men (%) | 35 (64%) | 64 (58%) | 48 (60%) | 34 (69%) | 0.54 |
| Race, black (%) | 48 (87%) | 89 (80%) | 64 (80%) | 41 (84%) | 0.66 |
| Diabetes mellitus, N (%) | 26 (47%) | 55 (50%) | 48 (60%) | 24 (49%) | 0.39 |
| Coronary artery disease, N (%) | 9 (16%) | 21 (19%) | 24 (30%) | 16 (33%) | 0.07 |
| Peripheral vascular disease, N (%) | 9 (16%) | 13 (12%) | 9 (11%) | 8 (16%) | 0.71 |
| Cerebrovascular disease, N (%) | 11 (20%) | 23 (21%) | 15 (19%) | 7 (14%) | 0.81 |
| Obesity (BMI≥30 kg/m2), N (%) | 20 (36%) | 50 (45%) | 46 (58%) | 22 (45%) | 0.10 |
| LVEF<55%, N (%) | 9 (16%) | 23 (21%) | 18 (23%) | 9 (18%) | 0.83 |
| AVF location, upper arm, N (%) | 26 (47%) | 70 (63%) | 68 (85%) | 48 (98%) | <0.001 |
| Preoperative systolic BP, mm Hg, mean±SD | 146±26 | 148±26 | 145±23 | 145±26 | 0.87 |
| Preoperative diastolic BP, mm Hg, mean±SD | 85±18a | 83±16 | 80±17 | 80±18a | 0.27 |
n=295 (five missing values). BMI, body mass index.
a
Two missing values: one from each category.