Table 1.
Baseline patient characteristics by access type on January 1, 2007, and subsequent hospitalization during a 1-year period
| Parameter | All Patients | Catheter | Graft | Fistula |
|---|---|---|---|---|
| Patient characteristics | ||||
| no. of patients (%) | 79,545 | 23,433 (29.5) | 21,777 (27.4) | 34,335 (43.2) |
| age (years; mean ± SD) | 61.6 ± 15.0 | 62.3 ± 15.4 | 63.8 ± 14.1a | 60.4 ± 15.1a |
| male (%)c | 54.2 | 47.7 | 44.3 | 65.0 |
| race (%)c | ||||
| white | 50.8 | 54.9 | 42.4 | 53.4 |
| black | 40.5 | 38.3 | 48.9 | 36.7 |
| other | 8.7 | 6.8 | 8.7 | 9.9 |
| diabetesc | 53.0 | 55.8 | 55.3 | 49.7 |
| vintage (years; mean ± SD) | 3.6 ± 3.9 | 2.5 ± 3.4 | 4.6 ± 3.9a | 3.6 ± 3.5a |
| eKt/V (mean ± SD) | 1.48 ± 0.33 | 1.42 ± 0.37 | 1.51 ± 0.31a | 1.49 ± 0.32a |
| albumin (g/L; mean ± SD) | 3.82 ± 0.42 | 3.68 ± 0.47 | 3.85 ± 0.37a | 3.90 ± 0.38a |
| hemoglobin (g/dl; mean ± SD) | 12.12 ± 1.40 | 11.98 ± 1.55 | 12.15 ± 1.33a | 12.19 ± 1.33a |
| phosphorus (mg/dl; mean ± SD) | 5.47 ± 1.63 | 5.44 ± 1.71 | 5.40 ± 1.57b | 5.54 ± 1.61a |
| All hospitalizations | ||||
| exposure days (n [%]) | 24,756,616 | 6,414,312 (26) | 6,968,933 (28) | 11,373,371 (46) |
| event counts (n [%]) | 118,218 | 42,141 (36) | 33,912 (29) | 42,165 (36) |
| hospital days/patient-year (mean) | 13.0 | 18.8 | 13.0 | 9.8 |
| LOS (days; mean) | 7.5 | 7.8 | 7.3 | 7.25 |
LOS, length of stay.
a
P < 0.001,
b
P = 0.03 versus central venous catheter.
c
P < 0.001 by χ2 (within group).