Table 1.
The Baseline Characteristics of the Study Population at the Initiation of Hemodialysis.
| Characteristics | AVF (n=975) | AVG (n=90) | CAVF (n=218) | CVAVG (n=58) | p value |
|---|---|---|---|---|---|
| Age (years) (mean, SD) | 67.8 (12.8) | 69.9 (12.6) | 67.5 (13.4) | 73.2 (10.7) | 0.002 |
| Male sex (n, %) | 695 (71.3) | 45 (50.0) | 131 (60.1) | 30 (51.7) | <0.001 |
| Diabetes mellitus (n, %) | 525 (53.8) | 45 (50.0) | 102 (46.8) | 31 (53.4) | 0.279 |
| Peripheral artery disease (n, %) | 45 (4.6) | 7 (7.8) | 7 (3.2) | 4 (6.9) | 0.304 |
| Coronary artery disease (n, %) | 166 (17.0) | 19 (21.3) | 28 (12.8) | 12 (21.0) | 0.208 |
| Body mass index (mean, SD) | 23.6 (4.0) | 24.6 (5.0) | 22.6 (4.6) | 23.3 (4.8) | <0.001 |
| Hemoglobin(g/L) (mean, SD) | 9.5 (1.4) | 9.1 (1.5) | 8.7 (2.0) | 9.0 (1.6) | <0.001 |
| Creatinine (mg/dL) (mean, SD) | 9.0 (3.0) | 8.4 (2.5) | 9.3 (4.5) | 8.1 (3.2) | 0.017 |
| eGFR (mL/min per 1.73 m2) (mean, SD) | 5.3 (1.9) | 5.4 (1.9) | 5.5 (2.5) | 6.2 (4.4) | 0.850 |
| Serum albumin (g/L) (mean, SD) | 3.2 (0.6) | 3.2 (0.5) | 2.9 (0.7) | 2.8 (0.5) | <0.001 |
| Duration of ESRD nephrology care (days) (mean, SD) | 1,065.5 (1337.0) | 1,089.7 (1036.9) | 611.6 (873.0) | 610.5 (873.0) | <0.001 |
| Duration from the creation of blood access to the initiation of hemodialysis (days) (mean, SD) | 126.4 (201.8) | 80.63 (190.0) | 36.1 (96.0) | 10.15 (18.4) | <0.001 |
| Primary renal diagnosis (n, %) | 0.044 | ||||
| Glomerulonephritis | 160 (16.4) | 7 (7.8) | 37 (16.9) | 8 (13.8) | |
| Diabetes | 444 (45.5) | 42 (46.7) | 85 (39.0) | 27 (46.6) | |
| Hypertension/renal vascular disease | 253 (25.9) | 21 (23.3) | 58 (26.6) | 18 (31.0) | |
| Polycystic kidney disease | 37 (3.8) | 3 (3.3) | 2 (0.9) | 0 (0.0) | |
| Other | 49 (5.0) | 9 (10.0) | 19 (8.7) | 4 (6.9) | |
| Unknown | 32 (3.3) | 8 (8.9) | 17 (7.8) | 1 (1.7) |
ESRD: end stage renal disease