Table 2 Results for the survival outcome setting. Brier (full model) 21.4 and Brier (null model) 23.6
From: The index of prediction accuracy: an intuitive measure useful for evaluating risk prediction models
| Variable | Units | Odds ratio | 95% CI | p value | IPA (%) at 3 years |
|---|---|---|---|---|---|
| Full model | 9.21 | ||||
| Loss in IPA (%) compared to full model | |||||
| Age | 5 years | 1.18 | [0.87;1.61] | 0.27 | − 0.57 |
| PSA density | Twofold | 1.06 | [0.84;1.35] | 0.61 | 1.26 |
| Percentage of positive biopsies | 5 points | 1.08 | [0.95;1.23] | 0.24 | 3.47 |
| Maximum tumor involvement | Twofold | 1.20 | [0.98;1.47] | 0.08 | − 4.34 |
| cT stage | cT1 | Ref | − 2.49 | ||
| cT2 | 1.68 | [0.91;3.13] | 0.10 | ||
| Diagnostic GS | GNA | Ref | 3.17 | ||
| 3 and 3 | 0.65 | [0.33;1.27] | 0.21 | ||
| 3 and 4 | 1.15 | [0.46;2.90] | 0.77 | ||
| ERG status | Negative | Ref | 7.60 | ||
| Positive | 1.48 | [0.97;2.25] | 0.07 |