Table 1.
Baseline characteristics of the patients (n = 289)
| Factors | Value |
|---|---|
| Age (years) | 55.7 ± 10.5 |
| Male sex | 138 (48%) |
| Primary tumor site | |
| Slow growth | 103 (36%) |
| Moderate growth | 75 (26%) |
| Rapid growth | 111 (38%) |
| Location | |
| Cervical | 23 (8.0%) |
| Thoracic | 159 (55%) |
| Lumbar-Sacral | 77 (27%) |
| Combined | 30 (10%) |
| No. of spine metastases | |
| 1 level | 92 (32%) |
| 2 levels | 35 (12%) |
| ≥ 3 levels | 162 (56%) |
| ECOG performance status | |
| Score 0–2 | 99 (34%) |
| Score 3–4 | 190 (66%) |
| Other bone metastases | 187 (65%) |
| ASIA scale | |
| A to C | 56 (19%) |
| D or E | 233 (81%) |
| Visceral metastases | 127 (44%) |
| Surgery type | |
| Corpectomy with stabilization | 137 (47%) |
| Decompression and stabilization | 79 (27%) |
| Decompression alone | 73 (25%) |
| Prior local radiotherapys | 29 (10%) |
| Previous systemic therapys | 162 (56%) |
| Blood loss (ml) | 1128.3 ± 1053.5 |
| Transfusions | 189 (65%) |
| Baseline Hb (g/dL) | 12.3 ± 1.8 |
| Postoperative nadir Hb (g/dL) | 9.7 ± 1.8 |
| Predischarge Hb (g/dL) | 10.8 ± 1.6 |
| Nadir Hb drift | |
| Absolute (g/dL) | −2.6 ± 1.7 |
| Percentage | −21% ± 13% |
| Predischarge Hb drift | |
| Absolute (g/dL) | −1.6 ± 1.9 |
| Percentage | −12% ± 15% |
ECOG, Eastern Cooperative Oncology Group; ASIA, American Spinal Injury Association