Table 4.
Comparison of bRFS by risk group identified on RPA
| bRFS |
|||||
|---|---|---|---|---|---|
| Covariate | Level | n | Hazard ratio | 95% CI | |
| Group | GG 1 & cumulative* <= 2.0 | 27 | 0.06 | 0.02 | 0.19 |
| GG 1 & cumulative > 2.0 | 49 | 0.23 | 0.12 | 0.44 | |
| GG 2 | 82 | 0.35 | 0.20 | 0.59 | |
| GG 3-5 & single max† < 3.0 | 20 | 0.42 | 0.19 | 0.95 | |
| GG 3-5 & single max => 3.0 | 26 | Ref | - | - | |
Abbreviations: bRFS = biochemical relapse free survival; CI = confidence interval; GG = Gleason grade; RPA = recursive partitioning by conditional inference analysis.
⁎
Cumulative margins.
†
Maximal extent of 1 involved margin.