Table 1 Patient characteristics according to vascular access at hemodialysis initiation
Characteristics | Functional AV access | Nonfunctional AV access | Catheter only | Imputed missing data (%) |
|---|---|---|---|---|
n = 25,153 | n = 4705 | n = 23,234 | ||
Men | 65.0 | 58.2 | 62.0 | 0 |
Age (years, median (IQR)) | 70.4 (58.2–78.6) | 70.6 (59.6–78.9) | 72.0 (59.6–80.3) | 0 |
Primary renal disease | ||||
Hypertensive/Vascular | 27.3 | 26.5 | 25.4 | |
Diabetic nephropathy | 23.1 | 30.9 | 21.4 | |
Glomerulonephritis | 12.0 | 9.1 | 9.6 | 0 |
Polycystic kidney disease | 9.7 | 4.5 | 2.3 | |
Other | 16.6 | 17.9 | 26.2 | |
Unknown | 11.2 | 11.1 | 15.3 | |
Diabetes | 38.5 | 49.0 | 39.8 | 1.5 |
Number of cardiovascular comorbidities | ||||
0 | 48.8 | 40.1 | 40.9 | |
1 | 25.5 | 26.3 | 24.6 | |
2 | 15.1 | 17.5 | 18.4 | 5.8 |
3 | 7.5 | 10.9 | 11.0 | |
4 or 5 | 3.1 | 5.2 | 5.2 | |
Lower limb amputation | 2.3 | 4.3 | 4.3 | 5.6 |
Malignancy | 8.2 | 9.5 | 15.1 | 3.1 |
Mobility status | ||||
Autonomous | 87.1 | 79.5 | 72.2 | |
Needs assistance | 9.9 | 14.9 | 18.8 | 13.6 |
Totally dependent | 3.0 | 5.7 | 9.1 | |
Body mass index (kg/m2) | ||||
<18.5 | 4.7 | 5.5 | 8.0 | |
[18.5–25.0] | 40.9 | 38.4 | 44.6 | 26.4 |
[25.0–30.0] | 32.5 | 30.6 | 28.9 | |
≥30.0 | 21.9 | 25.5 | 18.4 | |
Serum albumin (g/l, mean ± SD) | 35.0 ± 5.9 | 32.5 ± 6.2 | 30.9 ± 6.4 | 43.9 |
Hemoglobin (g/dl, mean ± SD) | 10.6 ± 1.6 | 10.1 ± 1.7 | 9.7 ± 1.8 | 21.0 |
Predialysis ESA treatment | 59.2 | 55.0 | 31.1 | 9.7 |
Estimated glomerular filtration rate (MDRD ml/min/1.73 m2) | ||||
eGFR≤5 | 8.7 | 13.2 | 17.7 | |
5<eGFR≤10 | 53.9 | 52.8 | 47.4 | |
10<eGFR≤15 | 28.9 | 25.3 | 23.9 | 17.4 |
15<eGFR≤20 | 6.7 | 6.4 | 7.3 | |
eGFR>20 | 1.8 | 2.3 | 3.6 | |
Unplanned dialysis start | 9.5 | 37.7 | 56.9 | 2.8 |
Facility type | ||||
In center | 92.0 | 96.9 | 98.3 | |
Satellite unit | 4.0 | 1.5 | 1.0 | 0 |
Self-dialysis | 4.0 | 1.6 | 0.7 | |
Facility ownership | ||||
Public university | 17.9 | 27.3 | 30.9 | |
Public non-university | 29.8 | 31.7 | 31.6 | |
Private for-profit | 34.0 | 30.3 | 28.8 | 0 |
Private not-for-profit | 18.4 | 10.7 | 8.8 | |