Table 1.
Summary of the baseline characteristics of independent variables (n = 400)
| Characteristic | Mature AVF (n = 228) | Immature AVF (n = 172) | P value |
|---|---|---|---|
| Gender (male/female) | 68/32 | 59.3/40.7 | 0.07 |
| Arm (left/right) | 65.4/34.6 | 76.2/23.8 | 0.02* |
| DM (yes/no) | 34.2/65.8 | 37.2/62.8 | 0.53 |
| HTN (yes/no) | 76.8/23.2 | 72.2/27.3 | 0.35 |
| PVD (yes/no) | 10.1/89.9 | 21.5/78.5 | 0.002* |
| Smoker (yes/no) | 14/86 | 12.8/87.2 | 0.72 |
| Dialysis prior to surgery (yes/no) | 39.5/60.5 | 42.4/57.6 | 0.55 |
| Type of AVF (BC/RC/BB) | 70.2/22.8/7.0 | 58.1/28.5/13.4 | 0.02* |
| BMI (kg/m2) | 26.5 ± 10.4 | 26.7 ± 8.9 | 0.81 |
| Urea (mmol/L) | 17.5 ± 9.0 | 17.3 ± 8.4 | 0.85 |
| Creatinine (μmol/L) | 414 ± 181 | 414.6 ± 187 | 0.98 |
| eGFR (mL/min/1.73 m2) | 14.1 ± 6.3 | 14.7 ± 7.4 | 0.48 |
| K (mmol/L) | 4.4 ± 0.8 | 4.5 ± 0.8 | 0.90 |
| Na (mmol/L) | 138.7 ± 3.8 | 138.8 ± 3.7 | 0.76 |
| Ca (mmol/L) | 2.3 ± 0.2 | 2.3 ± 0.2 | 0.59 |
| HCO3 (mmol/L) | 24.9 ± 5.0 | 24.7 ± 5.1 | 0.69 |
| PT (sec) | 10.8 ± 4.0 | 10.6 ± 3.6 | 0.61 |
| INR (ratio) | 1.04 ± 0.3 | 1.06 ± 0.4 | 0.47 |
| TC (mmol/L) | 4.2 ± 1.5 | 4.3 ± 1.4 | 0.78 |
| TG (mmol/L) | 2.2 ± 1.6 | 3.5 ± 1.6 | 0.31 |
| HDL (mmol/L) | 1.1 ± 0.4 | 1.8 ± 1.1 | 0.21 |
| Vein size (mm) | 3.6 ± 1.2 | 3.4 ± 1.02 | 0.08 |
Data are presented as number or mean ± standard deviation.
AVF, arteriovenous fistula; BB, brachiocephalic; BC, brachiocephalic; BMI, body mass index; Ca, calcium; DM, diabetes mellitus; eGFR, estimated glomerular filtration rate; HCO3, bicarbonate; HDL, high-density lipoprotein; HTN, hypertension; INR, international normalization ratio; K, potassium; Na, sodium; PT, prothrombin time; PVD, peripheral vascular disease; RC, radiocephalic; TC, total cholesterol; TG, triglyceride.
*
Significant difference between two cohorts P < 0.05.