Table 2.
Results of Univariate and Multivariate Analyses for Prediction of Disease Recurrence
| Analysis type | Risk ratio | 95% Confidence interval | P value | |
|---|---|---|---|---|
| Lower | Upper | |||
| Univariate analysis | ||||
| INK4A deletion (no vs. yes) | 1.93 | 1.02 | 3.66 | 0.04 |
| Tumor stage (Ta vs. T1) | 1.03 | 0.58 | 1.84 | 0.91 |
| Tumor grade (G1 vs. G2/3) | 1.49 | 0.91 | 2.45 | 0.11 |
| Tumor size (<3 cm vs. ≥3 cm) | 1.73 | 1.10 | 2.72 | 0.02 |
| Number of tumors (1 vs. multiple) | 1.76 | 1.11 | 2.79 | 0.02 |
| Multivariate analysis | ||||
| INK4A deletions | 1.58 | 0.77 | 3.26 | 0.22 |
| Tumor stage | 0.86 | 0.45 | 1.63 | 0.64 |
| Tumor grade | 1.48 | 0.85 | 2.59 | 0.17 |
| Tumor size | 1.39 | 0.84 | 2.29 | 0.20 |
| Number of tumors | 1.85 | 1.13 | 3.02 | 0.01 |