Table 1.
Demographic and clinical characteristics of the 3223 patients with bone metastases
| Characteristic | Number of patients | Percent (%) |
|---|---|---|
| Age (years) | ||
| <50 | 935 | 29.0 |
| 50–70 | 1673 | 51.9 |
| >70 | 615 | 19.1 |
| Gender | ||
| Male | 1515 | 47.0 |
| Female | 1708 | 53.0 |
| ECOG PS | ||
| 0 | 617 | 19.1 |
| 1 | 968 | 30.0 |
| ≥2 | 1638 | 50.8 |
| Cancer type | ||
| Lung cancer | 1178 | 36.5 |
| Breast cancer | 996 | 30.9 |
| Prostate cancer | 274 | 8.5 |
| Gastrointestinal cancer | 185 | 5.7 |
| Multiple myeloma | 112 | 3.5 |
| Others | 478 | 14.8 |
| Metastatic sites other than the bone | ||
| Yes | 1882 | 58.4 |
| No | 1341 | 41.6 |
ECOG PS Eastern Cooperative Oncology Group performance status