Table 1 Patient and tumor characteristics in the three subtypes of RCC
|  | Xp11.2/TFE3 RCC (n = 18) | ccRCC (n = 60) | pRCC (n = 32) | P value | |
|---|---|---|---|---|---|
Xp11.2/TFE3 RCC vs ccRCC | Xp11.2/TFE3 RCC vs pRCC | ||||
Age (years) | 38.3 ± 16.3 | 55.8 ± 12.8 | 57.7 ± 11.0 | 0.049* | 0.007* |
Gender no. (%) | Â | Â | Â | 0.033* | 0.055 |
 Male | 8 (44.4) | 43 (71.7) | 23 (71.9) |  |  |
 Female | 10 (55.6) | 17 (28.3) | 9 (28.1) |  |  |
Size (cm) | 4.3 ± 1.5 | 3.3 ± 1.5 | 3.6 ± 1.7 | 0.904 | 0.409 |
Tumor side (%) | Â | Â | Â | 0.561 | 0.585 |
 Left | 7 (38.9) | 28 (46.7) | 15 (46.9) |  |  |
 Right | 11 (61.1) | 32 (53.3) | 17 (53.1) |  |  |
Tumor location (%) | Â | Â | Â | 0.217 | 0.512 |
 Upper pole | 8 (44.4) | 16 (26.7) | 12 (37.5) |  |  |
 Interpolar pole | 5 (27.8) | 14 (23.3) | 6 (18.8) |  |  |
 Lower pole | 5 (27.8) | 30 (50.0) | 14 (43.7) |  |  |