Table 3.
Multivariate Cox proportional hazard analysis of the scoring system (n = 581).
| Risk factors | Hazard ratio (95% CI) | p value | Regression coefficient | Points∗ |
|---|---|---|---|---|
| Gleason score | ||||
| <7 | 0 | |||
| =7 | 1.35 (1.115, 1.642) | 0.0022 | 0.30 | 2 |
| >7 | 2.43 (1.689, 3.498) | <0.0001 | 0.89 | 6 |
|
| ||||
| Pre-PSA score | ||||
| <10 | 0 | |||
| 10–20 | 1.39 (1.110, 1.749) | 0.0042 | 0.33 | 2 |
| >20 | 3.92 (2.805, 5.469) | <0.0001 | 1.37 | 8 |
|
| ||||
| EPE and margin | ||||
| None | 0 | |||
| At least one positive | 1.50 (1.223, 1.833) | <0.0001 | 0.40 | 2 |
∗Assignment of points to risk factors was based on a linear transformation of the β regression coefficients. The coefficient of each variable was divided by 0.3, multiplied by a constant (1.88), and rounded to the nearest integer. Total point is 20.