Feature | Number of cases | % of cases | |
---|---|---|---|
Sex | |||
Male | 320 | 61.5 | |
Female | 200 | 38.5 | |
Age at surgery | |||
< 65 years | 295 | 56.7 | |
≥ 65 years | 225 | 43.3 | |
Karnofsky perfomance status scale | |||
≥ 80% | 476 | 91.5 | |
< 80% | 44 | 8.5 | |
Tumor extent (Robson) | |||
Stage I | 310 | 59.6 | |
Stage II | 37 | 7.1 | |
Stage III | 83 | 16.0 | |
Stage IV | 90 | 17.3 | |
Regional lymph node metastasis | |||
N0/pN0 | 481 | 92.5 | |
pN+ | 39 | 7.5 | |
Distant metastasis | |||
M0 | 433 | 83.3 | |
M+ | 87 | 16.7 | |
Fuhrman grade | |||
G1/G2 | 417 | 80.2 | |
G3/G4 | 98 | 18.8 | |
Unclassified | 5 | 1.0 | |
Histopathological subtype | |||
Clear cell RCC | 422 | 81.1 | |
Papillary (chromophilic) RCC | 55 | 10.6 | |
Chromophobe RCC | 23 | 4.4 | |
Duct bellini | 3 | 0.6 | |
Unclassified RCC | 17 | 3.3 |