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 |