Table 4. Cox Regression Analysis of Risk of Major Amputation or Death
Variables at BaselineHazard Ratio95% CIP Value
Univariate analysis
Treatment with DES0.670.45–0.990.045
Multivariate analysis
Treatment with DES0.590.39–0.890.012
Age1.051.03–1.08<0.001
Diabetes mellitus1.120.72–1.760.62
Impaired renal functiona1.270.70–2.330.44
Stroke1.360.79–2.330.26
Coronary disease1.150.74–1.800.53
Current smoker1.821.05–3.140.032
Former smoker1.480.86–2.550.16
Rutherford category1.511.05–2.180.026
Number of treated lesions0.800.60–1.060.13
Low ABI (<0.7)0.890.55–1.440.63
High ABI (>1.4/unmeasurable)3.381.71–6.68<0.001
  • ABI indicates ankle‐brachial index; DES, drug‐eluting stent.

  • a Impaired renal function defined as estimated glomerular filtration rate <30 mL/min/1.73 m2.