Table 5.

Postmaturation AVF survival without intervention for patients with unassisted maturation: univariable analysis

VariableHazard Ratio95% CIP Value
No. of patients
Age, per 10 yr1.100.91 to 1.360.30
Sex, female versus male1.010.62 to 1.660.96
Race, black versus nonblack1.260.64 to 2.470.50
Hypertension1.020.43 to 2.410.96
Diabetes mellitus1.180.74 to 1.870.49
Coronary artery disease1.340.81 to 2.210.27
Peripheral vascular disease1.210.67 to 2.170.54
Cerebrovascular disease1.040.58 to 1.860.91
Heart failure1.050.64 to 1.720.84
Obesity, BMI≥30 kg/m20.970.61 to 1.540.90
AVF location, upper arm versus forearm1.120.66 to 1.900.67
Postoperative ultrasound
 Stenosis1.060.66 to 1.680.82
 Diameter, per mm0.840.76 to 0.940.001
 Blood flow, per 100 ml/min0.950.90 to 1.000.05
 Depth, per mm1.060.97 to 1.150.24
  • AVF, arteriovenous fistula; 95% CI, 95% confidence interval; BMI, body mass index.