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Table 1 Univariable analysis of independent factors to maturation of AVF

From: Development of prognostic model for fistula maturation in patients with advanced renal failure

Clinical characteristics Mature AVF % Total % Crude OR (95% CI) p value
Age     0.45
 > 50 years 57.2 76.3   
 ≤ 50 years 52.1 23.7 0.814 (0.477–1.389)  
Gender     0.049*
 Male 60 66.7   
 Female 48 33.3 0.615 (0.379–0.998)  
Arm     0.129*
 Left 53.4 73.7   
 Right 63.3 26.3 1.505 (0.887–2.553)  
Fistula     0.115*
 BC 60.1 62.7   
 RC 51.9 27 0.715 (0.423–1.208)  
 BB 41.9 10.3 0.479 (0.222–1.036)  
Surgeons     0.788
 Surgeon A 56.4 68.0   
 Surgeon B 56 25.0 0.985 (0.578–1.679)  
 Surgeon C 71.4 2.3 1.935 (0.367–10.206)  
 Surgeon D 40 1.7 0.516 (0.084–3.154)  
 Surgeon E 44.4 3 0.619 (0.162–2.373)  
PVD     0.001*
 Yes 33.3 16   
 No 60.3 84 3.04 (1.585–5.829)  
DM     0.102*
 Yes 50 38   
 No 59.7 62 1.48 (0.925–2.367)  
Smoker     0.49
 Yes 61 13.7   
 No 55.2 86.3 0.789 (0.402–1.547)  
HTN     0.406
 Yes 57.3 78   
 No 51.5 22 0.793 (0.458–1.371)  
Dialysis     0.513
 Yes 53.6 37.3   
 No 57.4 62.7 1.17 (0.731–1.873)  
K+ (mmol/L)     0.948
 Normal 56.2 54.3   
 Abnormal 55.8 45.7 1.015 (0.642–1.605)  
Na+ (mmol/L)     0.439
 Normal 55.1 85.3   
 Abnormal 61.4 14.7 1.295 (0.673–2.494)  
Ca++ (mmol/L)     0.525
 ≤ 2.5 56.7 87   
 > 2.5 51.3 13 0.804 (0.41–1.577)  
HCO3 (mmol/L)     0.743
 ≤ 23 57 45   
 > 23 55.2 55 0.926 (0.586–1.465)  
Creatinine (mmol/L)     0.676
 > 400 57.5 44.7   
 > 120 ≤ 400 55.2 54.3 0.913 (0.576–1.447)  
 ≤ 120 33.3 1 0.37 (0.033–4.182)  
Urea (mmol/L)     0.949
 > 15 55.3 65.7   
 > 6.6–≤ 15 57.1 18.7 1.076 (0.591–1.960)  
 ≤ 6.6 57.4 15.7 1.09 (0.73–2.073)  
eGFR (ml/min/1.73m2)     0.459
 ≤ 15 57.4 64.6   
 > 15 52.9 35.4 0.834 (0.516–1.349)  
SBP (mm of Hg)     0.101*
 ≤ 130 51.6 53   
 > 130 48.4 47 1.468 (0.927–2.325)  
DBP (mm of Hg)     0.786
 ≤ 85 56.3 90.7   
 > 85 53.6 9.3 0.897 (0.411–1.958)  
BMI (kg/m2)     0.563
 ≤ 30 55 73.3   
 > 30 58.8 26.7 1.165 (0.694–1.957)  
PT (s)     0.413
 ≤ 13.4 56.9 86.6   
 > 13.5 50 13.4 0.757 (0.389–1.474)  
INR (ratio)     0.140*
 ≤ 1.2 57.6 88   
 > 1.2 44.4 12 0.589 (0.292–1.189)  
TC (mmol/L)     0.24*
 ≤ 5 57.9 76   
 > 5 50 24 1.294 (0.804–2.084)  
TG (mmol/L)     0.289
 ≤ 2.1 53.7 63.3   
 > 2.1 60 36.7 0.773 (0.48–1.244)  
HDL (mmol/L)     0.874
 ≤ 1.1 55.6 51   
 > 1.1 56.5 49 1.037 (0.658–1.637)  
Vein size (mm)     < 0.001*
 ≤ 2.5 26.3 12.6   
 > 2.5 60.3 87.4 4.254 (1.983–9.126)  
  1. Independent patient factors and blood markers that underwent in univariate analysis and their association with the maturation of AVF. Data values are expressed as value (%), odds ratio (OR), confidence interval (CI) and level of significance (p)
  2. BC brachiocephalic, RC radiocephalic, BB bicarbonate, PVD peripheral vascular disease, DM diabetes mellitus, HTN hypertension, K potassium, Na sodium, Ca calcium, HCO3 bicarbonate, e-GFR estimated glomerular filtration rate, SBP systolic blood pressure, DBP diastolic blood pressure, BMI body mass index, PT prothrombin time, INR international normalization ratio, TC total cholesterol, TG triglyceride, HDL high density lipoprotein
  3. *Significant variables having p value < 0.25