Table 1. Baseline characteristics of study participants according to the tertile of baseline aortic pulse wave velocity.
| Clinical characteristic | PWV tertile Low | PWV tertile Medium | PWV tertile High | Overall | P Value |
|---|---|---|---|---|---|
| N | 60 | 60 | 59 | 179 | |
| Pulse wave velocity (m/s) | 5 ± 0.8 | 7.2 ± 0.6 | 10.6 ± 2.2 | 7.6 ± 2.7 | <0.001 |
| Age (y) | 47.7 ± 10.9 | 51.1 ± 12 | 57.7 ± 12.4 | 52.1 ± 12.4 | <0.001 |
| Male sex n(%) | 38 (63.3%) | 41 (68.3%) | 40 (67.8%) | 119 (66.5%) | 0.82 |
| Blacks n(%) | 54 (90%) | 53 (88.3%) | 49 (83.1%) | 156 (87.2%) | 0.5 |
| Hispanic n(%) | 0 (0%) | 1 (1.7%) | 0 (0%) | 1 (0.6%) | 0.37 |
| Atenolol n(%) | 28 (46.7%) | 33 (55%) | 28 (47.5%) | 89 (49.7%) | 0.6 |
| Diabetes mellitus n(%) | 14 (23.3%) | 26 (43.3%) | 35 (59.3%) | 75 (41.9%) | <0.001 |
| Anuric n(%) | 37 (60.7%) | 40 (65.6%) | 42 (73.7%) | 119 (66.5%) | 0.14 |
| Hospitalized heart failure n(%) | 15 (25%) | 21 (35%) | 16 (27.1%) | 52 (29.1%) | 0.45 |
| Coronary artery disease n(%) | 13 (21.7%) | 18 (30%) | 13 (22%) | 44 (24.6%) | 0.49 |
| Coronary revascularization n(%) | 1 (1.7%) | 8 (13.3%) | 4 (6.8%) | 13 (7.3%) | 0.05 |
| Cerebrovascular disease n(%) | 6 (10%) | 13 (21.7%) | 10 (16.9%) | 29 (16.2%) | 0.22 |
| Peripheral vascular disease n(%) | 3 (5%) | 6 (10%) | 8 (13.6%) | 17 (9.5%) | 0.28 |
| Smoking n(%) | 33 (55%) | 26 (43.3%) | 21 (35.6%) | 80 (44.7%) | 0.1 |
| Height (in) | 67.9 ± 3.5 | 68 ± 4.1 | 68 ± 4.1 | 68 ± 3.9 | 0.99 |
| Weight (kg) | 82.3 ± 28.1 | 83.9 ± 23.4 | 80.8 ± 18 | 82.3 ± 23.5 | 0.77 |
| Body mass index (kg/m2) | 27.7 ± 9.4 | 28.1 ± 7.2 | 27.2 ± 6.9 | 27.7 ± 7.9 | 0.85 |
| Access type | 0.29 | ||||
| Fistula | 34 (56.7%) | 32 (53.3%) | 39 (66.1%) | 105 (58.7%) | 0.34 |
| Graft | 12 (20%) | 8 (13.3%) | 5 (8.5%) | 25 (14%) | 0.19 |
| Catheter | 14 (23.3%) | 20 (33.3%) | 15 (25.4%) | 49 (27.4%) | 0.43 |
| Delivered dialysis duration (min) | 220.4 ± 40.5 | 222.5 ± 36.8 | 224.4 ± 28.5 | 222.4 ± 35.5 | 0.83 |
| Albumin (g/dL) | 3.7 ± 0.5 | 3.6 ± 0.4 | 3.5 ± 0.4 | 3.6 ± 0.5 | 0.19 |
| Hemoglobin (g/dL) | 11.6 ± 1.2 | 11.3 ± 1.5 | 11.1 ± 1.3 | 11.3 ± 1.3 | 0.12 |