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Table 3 Comparative patient and facility characteristics among facilities with the highest and lowest quartile of NTHC use at dialysis initiation

From: Geographic and facility variation in initial use of non-tunneled catheters for incident maintenance hemodialysis patients

Characteristic    
  Lowest quartile NTHC Highest quartile NTHC P Value
N 5013(51.9) 4651(48.1)  
% with temp CVC 24.8 75.2  
 Age (mean ± SD) 64.0 ± 15.5 64.8 ± 15.6 0.01
 Sex % male 57.9 59.2 0.395
 BMI (mean ± SD) 27.4 ± 6.7 27.6 ± 6.8 0.123
 Race (%)    <0.001
  Caucasian 70.9 74.2  
  East Asian 5.9 5.1  
  Aboriginal 7.8 6.1  
  South Asian 2.5 3.8  
  Black 4.2 3.9  
  Other 6.2 3.4  
  Unknown 2.5 3.6  
 Pre-dialysis care >90 days % 61.1 56.8 <0.0001
 Pre-dialysis care >365 days % 42.3 38.1 <0.0001
 Co-morbidities %    
  Acute coronary syndrome 26.3 25.1 0.177
  Pulmonary edema 33.1 29.9 0.001
  Diabetes mellitus 48.8 44.0 <0.001
  Stroke 14.9 16.9 0.006
  Peripheral vascular disease 21.2 23.0 0.035
  Malignancy 14.9 15.9 0.150
  Lung disease 13.7 14.6 0.179
  Hypertension medications 85.0 77.8 <0.001
  Current smoker 14.8 19.3 <0.001
  CABG 13.3 14.7 0.056
  Serious Illness 14.5 16.3 0.015
  Angina 26.4 24.4 0.03
 Cause of ESRD %    <0.001
  Hypertension 22.0 23.4  
  Diabetes mellitus 38.1 28.6  
  Glomerulonephritis 13.6 11.3  
  Obstruction 2.8 2.1  
  Interstitial 2.8 1.8  
  Polycystic kidney disease 2.8 2.0  
  Other 8.0 20.5  
  Unknown 10.0 10.3  
 eGFR at dialysis initiation (mean ± SD) 9.4 ± 4.5 9.8 ± 4.6 <0.0001
 Hemoglobin g/L (mean ± SD) 97.9 ± 17.3 98.2 ± 17.8 0.341
 Phosphate mmol/L (mean ± SD) 2.0 ± 0.7 2.0 ± 0.7 <0.0001
 Albumin g/L (mean ± SD) 31.3 ± 0.9 29.8 ± 0.9 <0.0001
 Distance from facility %    <0.0001
   < 50 km 75.2 72.0 <0.0001
  50-150 18.6 16.6  
   > 150 6.2 11.4  
Facility Characteristics    
 Mean number of incident patients (per year) 78.8 ± 30.3 68.6 ± 35.4 <0.0001
 Transplant facility % 31.6 28.4 0.001
 Peritoneal dialysis facility % 99.6 70.5 <0.0001
 eGFR at dialysis initiation (facility mean ± SD) 9.7 ± 1.1 9.6 ± 1.2 0.001
 Hemoglobin g/L (facility mean ± SD) 101.6 ± 3.5 101.7 ± 4.2 0.176
 Phosphate mmol/L (facility mean ± SD) 1.9 ± 0.2 1.9 ± 0.1 <0.0001
 Distance from facility km (facility mean ± SD) 42.2 ± 34.7 66.9 ± 41.5 <0.0001
  1. NTHC non-tunelled hemodialysis catheter, N Number, eGFR estimated glomerular filtration rate, SD standard deviation, BMI body mass index, IQR intra-quartile range, CABG coronary artery bypass graft, ESRD end-stage renal disease, g/L grams per liter, mmol/L millimoles per liter, AVF arteriovenous fistula
  2. eGFR was estimated glomerular filtration rate in ml/min/1.73 m2 by the 4 variable MDRD equation, km kilometer