Table 1. Clinical features of KIRC patients in training set, testing set and whole set.
| Clinical features | Whole set | Training set | Testing set | p |
|---|---|---|---|---|
| Total | n = 475 | n = 238 | n = 237 | |
| Dead (%) | 152 (32.0) | 70 (29.4) | 82 (34.6) | 0.226 |
| Mean age (SD), years | 60.4 (12.0) | 60.9 (12.3) | 59.9 (11.9) | 0.377 |
| Female (%) | 161 (33.9) | 84 (35.3) | 77 (32.5) | 0.518 |
| Tumor grade | 0.982 | |||
| G1 | 8 (1.7) | 4 (1.7) | 4 (1.7) | |
| G2 | 200 (42.1) | 98 (41.2) | 102 (43.0) | |
| G3 | 196 (41.3) | 100 (42.0) | 96 (40.5) | |
| G4 | 71 (14.9) | 36 (15.1) | 35 (14.8) | |
| TNM stage | 0.965 | |||
| Stage I | 235 (49.5) | 117 (49.2) | 118 (49.8) | |
| Stage II | 50 (10.5) | 26 (10.9) | 24 (10.1) | |
| Stage III | 109 (22.9) | 56 (23.5) | 53 (22.4) | |
| Stage IV | 81 (17.1) | 39 (16.4) | 42 (17.7) |
Abbreviations: KIRC: kidney renal clear cell carcinoma; TNM: tumor-node-metastasis.