Table 1 Clinicopathologic characteristics of the patients in the training and validation sets.
Variable | Training set population with localized ccRCC | Validation set population with localized ccRCC | |||
|---|---|---|---|---|---|
Population | N = 351 | % | N = 167 | % | |
Gender | Male | 224 | 64 | 111 | 66 |
Female | 127 | 36 | 56 | 34 | |
T stage | 1/2 | 244 | 70 | 144 | 86 |
3/4 | 107 | 30 | 23 | 14 | |
Grade | 1/2 | 173 | 49 | 110 | 66 |
3/4 | 178 | 51 | 57 | 34 | |
Sarcomatoid | Yes | — | — | 14 | 8 |
No | — | — | 153 | 92 | |
Rhabdoid | Yes | — | — | 6 | 4 |
No | — | — | 161 | 96 | |
Necrosis | Yes | — | — | 12 | 7 |
No | — | — | 155 | 93 | |
Thrombosis | Yes | — | — | 7 | 4 |
No | — | — | 160 | 96 | |
Leibovich score | Low | — | — | 107 | 64 |
Intermediate | — | — | 40 | 24 | |
High | — | — | 20 | 12 | |
Leibovich score | <5 | — | — | 135 | 81 |
≥5 | — | — | 32 | 19 | |
Age (median, years) | 61 (26–90) | 63 (31–90) | |||
Follow-up (median, months) | 38 (0–122) | 41 (3–122) | |||
