Table 3.
Description of clinical and pathological parameters of the overall study cohort (n = 391) and clear cell RCC sub-cohort (n = 280).
| Feature | Overall cohort∗ (n = 391) | Clear cell sub-cohort∗ (n = 280) |
|---|---|---|
| Primary tumor (1997 T stage)a | ||
| T1 | 207 (55.95) | 146 (54.48) |
| T2 | 38 (10.27) | 23 (8.58) |
| T3 | 114 (30.81) | 94 (35.07) |
| T4 | 11 (2.97) | 5 (1.87) |
| Regional lymph nodes (N stage)a | ||
| N0 | 328 (84.10) | 234 (83.47) |
| N1 | 57 (14.62) | 45 (16.17) |
| N2 | 5 (1.28) | 1 (0.36) |
| Distant metastases (M stage)a | ||
| M0 | 314 (80.51) | 216 (77.14) |
| M1 | 76 (19.49) | 64 (22.86) |
| Tumor size (cm) | ||
| Mean ± SD | 6.1 ± 4.1 | 6.1 ± 4 |
| Median (min–max) | 5.1 (0.4–23.0) | 5.3 (0.5–23.0) |
| Nuclear gradea | ||
| 1 | 10 (2.66) | 8 (2.88) |
| 2 | 149 (39.62) | 115 (41.37) |
| 3 | 162 (43.09) | 111 (39.93) |
| 4 | 55 (14.63) | 44 (15.82) |
| Necrosisa | ||
| No | 174 (57.24) | 133 (59.37) |
| Yes | 130 (42.76) | 91 (40.63) |
∗
Participant's number may not add to 391 or 280 due to missing values.
a
Data presented as n (%).