| Variables |
Training sample |
Validation sample |
p value |
| No. of patients |
361 |
102 |
|
| Age, years (mean, SD) |
71.43 (8.68) |
70.39 (8.17) |
NS |
| PSA, ng/mL (median,
IQR) |
253.8 (728.3-1349.7) |
358.0 (652.0-1597.2) |
NS |
| ≤ T3, T4 (%) |
81.1, 18.9 |
62.8, 37.2 |
<0.0001 |
| EOD 1, 2, 3, 4 (%) |
40.7, 26.6, 25.5, 7.2 |
35.3, 27.5, 28.4, 8.8 |
NS |
| Gleason ≤ 6, 7, 8-10 (%) |
6.4, 18.6, 75.0 |
3.0, 16.7, 80.3 |
NS |
| Use of docetaxel (%) |
19.1 |
35.3 |
<0.0001 |
| Observation period,
years (median, IQR) |
3.11 (3.11-4.15) |
2.58 (2.58-3.51) |
0.027 |
SD: Standard deviation
IQR: Interquartile range
EOD: Extent of disease on bone scan |
