Table I.
Clinicopathological characteristics of patients with clear cell renal cell carcinoma.
| Clinicopathological characteristic | n | % |
|---|---|---|
| All patients | 331 | 100 |
| Follow-up, months | ||
| Median (range) | 98.97 | |
| (2.63–120.47) | ||
| Age, years | ||
| Median (range) | 55 (23–86) | |
| Sex | ||
| Female | 97 | 29.3 |
| Male | 234 | 70.7 |
| ECOG PS | ||
| 0 | 223 | 67.4 |
| 1 | 67 | 20.2 |
| 2 | 32 | 9.7 |
| 3 | 9 | 2.7 |
| Fuhrman nuclear grade | ||
| 1 | 36 | 10.9 |
| 2 | 247 | 74.6 |
| 3 | 45 | 13.6 |
| 4 | 3 | 0.9 |
| Necrosis | ||
| Absent | 287 | 86.6 |
| Present | 44 | 13.3 |
| T classification | ||
| T1 | 215 | 65.0 |
| T2 | 25 | 7.6 |
| T3 | 87 | 26.3 |
| T4 | 4 | 1.2 |
| N classification | ||
| Nx | 283 | 85.5 |
| N0 | 46 | 13.9 |
| N1 | 2 | 0.6 |
| Distant metastasis | ||
| No | 315 | 95.2 |
| Yes | 16 | 4.8 |
| TNM stage | ||
| I | 209 | 63.1 |
| II | 20 | 6.0 |
| III | 83 | 25.1 |
| IV | 19 | 5.7 |
| Surgery | ||
| Nephron-sparing (open) | 37 | 11.2 |
| Nephron-sparing (laparoscopic) | 1 | 0.3 |
| Radical nephrectomy (open) | 268 | 81.0 |
| Radical nephrectomy (laparoscopic) | 25 | 7.5 |
ECOG PS, Eastern Cooperative Oncology Group performance status.