Table 4. Cox regression analysis of factors associated with reintervention.
| Variable | Univariate analysis | Multivariate analysis | ||||||
|---|---|---|---|---|---|---|---|---|
| B | HR | 95%CI | p-value | B | HR | 95% CI | p-value | |
| Diabetes mellitus | 0.403 | 1.49 | 0.411-5.455 | 0.541 | 0.207 | 1.23 | 0.293-5.168 | 0.777 |
| Chronic kidney failure | 13.355 | 5.00 | 0.419-6306 | 0.419 | 13.167 | 9.00 | 0.411-5.455 | 0.984 |
| Tobacco use | −0.692 | 0.50 | 0.109-2.297 | 0.373 | 0.664 | 1.94 | 0.247-15.244 | 0.528 |
| High surgical risk | 10.085 | 1.00 | 0.112-1.488 | 0.345 | 6.981 | 0.54 | 0.135-2.198 | 0.080 |
| TASC type C/D | 11.527 | 1.41 | 0.388-5.188 | 0.001 | 2.064 | 7.87 | 1.004-61.763 | 0.050 |
| Iliac segment treated † | 0.319 | 1.36 | 0.361-5.163 | 0.572 | −0.132 | 0.87 | 0.132-5.862 | 0.891 |
| Indication for revascularization ‡ | 0.892 | 0.53 | 0.334-3.233 | 0.345 | 0.127 | 1.13 | 0.114-11.316 | 0.914 |
B = coefficient; HR = hazard ratio; CI = confidence interval.
†
Iliac segment treated: common iliac artery + external iliac artery vs. common iliac artery;
‡
Indication for revascularization: critical limb ischemia vs. claudication.