Table 3.
Univariate and multivariate Cox regression analysis results for the predictors of loss of primary patency.
| Variables | Univariate analysis |
Multivariate analysis |
||
|---|---|---|---|---|
| HR (95% CI) | p value | HR (95% CI) | p value | |
| Female | 1.81 (0.97–3.38) | 0.06 | ||
| DM | 1.25 (0.63–2.49) | 0.53 | ||
| Hemodialysis | 1.49 (0.79–2.83) | 0.22 | ||
| CLTI | 2.00 (1.06–3.79) | 0.03 | 1.72 (0.90–3.28) | 0.10 |
| CTO | 1.56 (0.83–2.92) | 0.16 | ||
| Poor runoff | 1.47 (0.79–2.76) | 0.23 | ||
| RVD (per 1 mm increase) | 0.39 (0.24–0.61) | <0.01 | 0.42 (0.27–0.65) | <0.01 |
| Lesion length (per 10 mm increase) | 1.03 (1.01–1.07) | 0.03 | 1.03 (0.99–1.07) | 0.11 |
| Severe calcification | 0.71 (0.37–1.37) | 0.30 | ||
| Use of IN.PACT Admiral | 0.47 (0.24–0.90) | 0.02 | 0.48 (0.25–1.07) | 0.07 |
| Severe dissection | 2.64 (1.34–5.21) | <0.01 | 1.60 (0.77–3.31) | 0.21 |
| Post procedure %DS (per 10% increase) | 1.21 (0.93–1.57) | 0.16 | ||
HR hazard ratio, CI confidence interval, DM diabetes mellitus, CLTI chronic limb threatening ischemia, CTO chronic total occlusion, RVD reference vessel diameter, %DS percent diameter stenosis.