Table I.
Predictors of overall survival.
| Variables | Number (%) | P-value | Median survival (months) | 6-month survival (%) |
|---|---|---|---|---|
| NLR | <0.001 | |||
| ≤4 | 129(53) | 9.3 | 64.6 | |
| >4 | 169(40) | 4.1 | 41.4 | |
| Unknown | 22(7) | |||
| ECOG performance status score | <0.001 | |||
| 0-1 | 125(39) | 16.4 | 81.4 | |
| 2 | 93(29) | 5.9 | 48.0 | |
| 3-4 | 102(32) | 1.7 | 20.9 | |
| Primary tumor | <0.001 | |||
| Breast, prostate or kidney | 83(26) | 14.3 | 76.3 | |
| Other | 237(74) | 5.2 | 45.3 | |
| Number of active tumors | <0.001 | |||
| ≤5 | 87(27) | 18.3 | 80.8 | |
| >5 | 233(73) | 4.8 | 43.1 | |
| Albumin (g/dl) | <0.001 | |||
| >3.3 | 155(52) | 12.7 | 69.9 | |
| 2.4-3.3 | 114(38) | 3.8 | 33.2 | |
| <2.4 | 30(10) | 1.5 | 20.8 | |
| Unknown | 21(7) | |||
| Age (years) | 0.06 | |||
| >60 | 81(25) | 6.1 | 51.6 | |
| ≤60 | 239(75) | 9.5 | 58.4 | |
| Liver metastases | <0.001 | |||
| No | 254(79) | 7.9 | 58.2 | |
| Yes | 66(21) | 4.0 | 35.1 | |
| Bone-only metastases | <0.001 | |||
| No | 270(84) | 5.9 | 49.0 | |
| Yes | 50(16) | 15.5 | 77.2 | |
| Recent hospitalization | <0.001 | |||
| No | 113(35) | 13.8 | 75.8 | |
| Yes | 207(65) | 4.1 | 40.6 | |
| Lines of palliative chemotherapy ≥2 | 0.75 | |||
| No | 281(88) | 6.7 | 53.4 | |
| Yes | 39(12) | 6.2 | 53.4 |
NLR, neutrophil-to-lymphocyte ratio; ECOG, Eastern Cooperative Oncology Group.