Table 2 Patient characteristics
Characteristics | Training set n = 123 | Testing set n = 53 | P value |
|---|---|---|---|
Age (years, mean ± SD) | 69.4 ± 6.7 | 70.1 ± 6.6 | 0.938 |
Pre-operative PSA level [ng/mL, median (IQR)] | 19.5 (6.5–32.5) | 24.8 (7.4–42.2) | 0.835 |
The time between RP and MRI [months, median (IQR)] | 10.3 (2.5–18.1) | 12.3 (3.6–21.1) | 0.896 |
Follow-up time [months, median (IQR)] | 59.0 (35.5–82.5) | 46.0 (30.0–61.0) | 0.343 |
Surgical Gleason score [n, (%)] | 0.816 | ||
6 | 6 (4.9%) | 3 (5.7%) | |
7 (3 + 4) | 29 (23.6%) | 9 (17.0%) | |
7 (4 + 3) | 35 (28.5%) | 18 (34.0%) | |
8 | 19 (15.4%) | 10 (18.9%) | |
9–10 | 34 (27.6%) | 13 (24.5%) | |
Pathologic T stage [n, (%)] | 0.168 | ||
T2a/b | 8 (6.5%) | 9 (17.0%) | |
T2c | 42 (34.1%) | 16 (30.2%) | |
T3a | 35 (28.5%) | 12 (22.6%) | |
T3b | 19 (15.4%) | 11 (20.8%) | |
T4 | 19 (15.4%) | 5 (9.4%) | |
SVI [n, (%)] | 29 (23.6%) | 13 (24.5%) | 0.892 |
PNI [n, (%)] | 60 (48.8%) | 19 (35.8%) | 0.114 |
PSM [n, (%)] | 59 (48.0%) | 29 (54.7%) | 0.411 |
Local recurrence evident [n, (%)] | 38 (30.9%) | 16 (30.2%) | 0.926 |
Pre-operative PI-RADS score [n, (%)] | 0.622 | ||
1–2 | 7 (5.7%) | 1 (1.9%) | |
3 | 13 (10.6%) | 5 (9.4%) | |
4 | 34 (27.6%) | 13 (24.5%) | |
5 | 69 (56.1%) | 34 (64.2%) | |
Post-operative PI-RR score [n, (%)] | 0.473 | ||
1 | 76 (61.8%) | 31 (58.5%) | |
2 | 10 (8.1%) | 8 (15.1%) | |
3 | 10 (8.1%) | 5 (9.4%) | |
4 | 15 (12.2%) | 3 (5.7%) | |
5 | 12 (9.8%) | 6 (11.3%) |