Skip to main content

Table 1 Patient characteristics according to vascular access at hemodialysis initiation

From: Vascular access conversion and patient outcome after hemodialysis initiation with a nonfunctional arteriovenous access: a prospective registry-based study

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  
  1. Abbreviations: AV arteriovenous, CI confidence interval, IQR interquartile range, SD standard deviation, ESA erythropoiesis-stimulating agents, MDRD Modification of Diet in Renal Disease. P values of the comparisons between the 3 groups were statistically significant at <0.0001 for every characteristic in Table 1