Table 1 Patient characteristics
 |  | (%) |
---|---|---|
Mean age (range) years | 59.4 (37–83) |  |
Male/female | 35/5 | Â |
T stage | ||
 T1 | 7 | 17.5 |
 T2 | 5 | 12.5 |
 T3 | 23 | 57.5 |
 T4 | 5 | 12.5 |
Grade | ||
 1 | 9 | 22.5 |
 2 | 26 | 65.0 |
 3 | 5 | 12.5 |
Histological type | ||
 Clear cell | 38 | 95.0 |
 Papillary | 2 | 5.0 |
Metastatic site | ||
 Lung (lung mets only) | 30 (18) |  |
 Other site | 22 |  |
Treatment | ||
 IFN-α | 15 | 37.5 |
 IFN-α+5FU | 5 | 12.5 |
 IFN-γ | 8 | 20.0 |
 IL-2 | 4 | 10.0 |
 IL-2+IFN-α+TU | 8 | 20.0 |