Table 1.
Baseline characteristics of study participants by number of retained thrombosed AVGs
| All patients (n = 91) | Number of previous AVGs |
P-value | |||
|---|---|---|---|---|---|
| 0 (n = 48) | 1–2 (n = 33) | 3+ (n = 10) | |||
| Age (years) | 59.3 ± 12.4 | 62.3 ± 12.5 | 56.8 ± 10.6 | 52.6 ± 14.2 | 0.054 |
| Sex | |||||
| Female | 48 (53%) | 23 (48%) | 18 (55%) | 7 (70%) | 0.43 |
| Male | 43 (47%) | 25 (52%) | 15 (45%) | 3 (30%) | |
| Dialysis vintage (years) | 5.7 ± 4.2 | 3.9 ± 2.8 | 7.2 ± 4.5 | 9.6 ± 4.1 | <0.001 |
| Body mass index (kg/m2) | 29.1 ± 6.9 | 29.0 ± 6.6 | 29.2 ± 7.2 | 29.6 ± 8.2 | 0.98 |
| Primary renal disease | |||||
| Diabetes | 37 (41%) | 22 (46%) | 13 (39%) | 2 (20%) | 0.22 |
| Hypertension | 40 (44%) | 21 (44%) | 12 (36%) | 7 (70%) | |
| Othera | 14 (15%) | 5 (10%) | 8 (24%) | 1 (10%) | |
| Comorbidities | |||||
| Diabetes | 45 (49%) | 25 (52%) | 14 (42%) | 6 (60%) | 0.57 |
| Hypertension | 89 (98%) | 47 (98%) | 32 (97%) | 10 (100%) | 1.00 |
| History of CVDb | 40 (44%) | 23 (48%) | 13 (39%) | 4 (40%) | 0.75 |
| Peripheral Diseasec | 20 (22%) | 13 (27%) | 5 (15%) | 2 (20%) | 0.47 |
| Hypercoagulability | 4 (4%) | 3 (6%) | 1 (3%) | 0 (0%) | 0.78 |
| Tobacco use | |||||
| Never | 55 (60%) | 30 (63%) | 18 (55%) | 7 (70%) | 0.91 |
| Former | 23 (25%) | 12 (25%) | 9 (27%) | 2 (20%) | |
| Current | 13 (14%) | 6 (12%) | 6 (18%) | 1 (10%) | |
| Current vascular access | |||||
| AVG | 45 (49%) | 19 (40%) | 19 (58%) | 7 (70%) | 0.10 |
| AVF | 46 (51%) | 29 (60%) | 14 (42%) | 3 (30%) | |
| Erythropoietin use | 74 (81%) | 40 (83%) | 26 (79%) | 8 (80%) | 0.93 |
| Hemoglobin (g/dL) | 12.1 ± 1.4 | 12.2 ± 1.4 | 12.2 ± 1.5 | 11.7 ± 1.2 | 0.53 |
Results are expressed as mean ± SD
aOther includes hereditary, ischemic or glomerulonephritis and unknown causes.
bIncludes ischemic heart disease, myocardial infarction, CABG, CHF, angina, arrhythmia.
cIncludes peripheral vascular disease, history of lower extremity angioplasty or bypass surgery, history of claudication. Significant P-values are indicated in bold.