Table 3: Cox proportional hazards analysis of time to recurrence in patients with tumour size > 3 cm in T1 UBC.
| Variable | Univariate OR (95% CI) | p-value | Multivariate OR (95% CI) | p-value |
| Tumourgrade | ||||
| -grade 2 | 1.0 | 1.0 | ||
| -grade 3 | 1.05(0.59-1.86) | 0.88 | 0.91(0.50-1.62) | 0.75 |
| T1 sub-classification | ||||
| -T1a | 1.0 | 1.0 | ||
| -T1b | 1.24(0.76-2.02) | 0.34 | 1.13(0.69-1.88) | 0.64 |
| -T1c | 1.09(0.62-1.94) | 0.46 | 1.18(0.66-2.11) | 0.58 |
| Multiplicity | ||||
| -no | 1.0 | 1.0 | ||
| -yes | 1.63(1.04-2.59) | 0.033 | 1.49(0.93-2.38) | 0.09 |
| RTV | ||||
| ≤ 3 ml | 1.0 | 1.0 | ||
| > 3 ml | 0.45(0.28-0.7) | 0.001 | 0.48(0.30-0.76) | 0.002 |