Table 1.
Baseline characteristics
| Characteristic | Patients, n (%) |
|---|---|
| Sex | |
| Male | 96 (73.3) |
| Female | 35 (26.7) |
| Age, years | |
| <65 | 87 (66.4) |
| ≥65 | 44 (33.6) |
| Metastatic sites | |
| Lung | 99 (75.6) |
| Liver | 55 (42.0) |
| Bone | 41 (31.3) |
| Lymph nodes | 17 (13.0) |
| Number of metastatic foci | |
| 1 | 75 (57.3) |
| 2 | 36 (27.5) |
| ≥3 | 20 (15.2) |
| ECOG PS | |
| 0 | 38 (29.0) |
| 1 | 49 (37.4) |
| 2 | 44 (33.6) |
| Prior nephrectomy | |
| Yes | 95 (72.5) |
| No | 36 (27.5) |
| Prior immunotherapy | |
| IL-2 + IFN | 46 (35.1) |
| IL-2 alone | 18 (13.7) |
| IFN alone | 23 (17.6) |
| None | 44 (33.6) |
Abbreviations: ECOG PS, Eastern Cooperative Oncology Group performance status; IFN, interferon; IL, interleukin.