Table 5. Independent predictors for CTO-PCI failure on multivariate analysis and their weighted contribution to W-CTO score.
| Variables | β coefficient | p-value | OR (95% CI) | Score |
|---|---|---|---|---|
| Proximal cap blunt | 2.07 | <0.0001 | 7.90 (3.65-17.08) | +2 |
| Length of occlusion >20 mm | 1.54 | <0.0001 | 4.68 (2.09-10.47) | +1.5 |
| Tortuosity present | 1.11 | 0.004 | 3.02 (1.43-6.39) | +1 |
| Rentrop grade <2 | 1.09 | 0.016 | 2.97 (1.22-7.21) | +1 |
| Calcification present | 0.81 | 0.036 | 2.25 (1.06-4.77) | +1 |
| Total score (W-CTO) | +6.5 | |||
| CI: confidence interval; OR: odds ratio | ||||