Table 4. Clinicopathological characteristics by group.
| Variable | cRCC (n=1,286) | ncRCC (n=400) | p-value | |
|---|---|---|---|---|
| Pathological T | ||||
| T1 | 815 (63.4) | 255 (63.8) | 0.013 | |
| T2 | 126 (9.8) | 54 (13.5) | ||
| T3 | 319 (24.8) | 73 (18.2) | ||
| T4 | 23 (1.8) | 12 (3.0) | ||
| TX | 3 (0.2) | 0 (0.0) | ||
| Pathological N | ||||
| N0 | 975 (75.8) | 286 (71.5) | <0.001 | |
| N1 | 15 (1.2) | 24 (6.0) | ||
| NX | 295 (22.9) | 85 (21.2) | ||
| Pathological M | ||||
| M0 | 1,172 (91.1) | 367 (91.8) | 0.497 | |
| M1 | 106 (8.2) | 27 (6.8) | ||
| MX | 7 (0.5) | 1 (0.2) | ||
| Pathological stage | ||||
| Stage 1 | 801 (62.3) | 249 (62.2) | 0.015 | |
| Stage 2 | 104 (8.1) | 50 (12.5) | ||
| Stage 3 | 261 (20.3) | 62 (15.5) | ||
| Stage 4 | 115 (8.9) | 32 (8.0) | ||
| Pathological size (cm) | 5.36±3.35 | 5.44±4.54 | 0.719 | |
| Collecting duct invasion | 45 (3.5) | 19 (4.8) | 0.275 | |
| Lymphovascular invasion | 170 (13.2) | 41 (10.2) | 0.193 | |
| Renal sinus invasion | 92 (7.2) | 19 (4.8) | 0.137 | |
| Perinephric fat invasion | 212 (16.5) | 61 (15.2) | 0.728 | |
Values are presented as number (%) or mean±standard deviation.
cRCC, conventional renal cell carcinoma; ncRCC, non-conventional RCC.