TABLE 1.
Patient Characteristics (N = 862)
| Characteristic | No. | % |
|---|---|---|
| Sex | ||
| Male | 420 | 48.7% |
| Female | 442 | 51.3% |
| Type of cancer | ||
| Breast | 86 | 10.0% |
| Prostate | 63 | 7.3% |
| Lung | 365 | 42.3% |
| Othera | 348 | 40.4% |
| Location of metastasis | ||
| Bone | 514 | 59.6% |
| Lung | 177 | 20.5% |
| Liver | 203 | 23.6% |
| CNS | 354 | 41.1% |
| Other | 205 | 23.8% |
| Metastasis burden | ||
| Bone only | 227 | 26.3% |
| Non-bone only | 635 | 73.7% |
| KPS | ||
| ≤60 | 225 | 26.1% |
| >60 | 637 | 73.9% |
| ECOG PS | ||
| 0, 1 | 514 | 59.6% |
| 2 | 216 | 25.1% |
| 3, 4 | 132 | 15.3% |
| Prior hospitalizations within the last 3 mo | ||
| No | 385 | 44.7% |
| Yes | 477 | 55.3% |
| Age at treatment, y | ||
| ≤60 | 384 | 44.5% |
| >60 | 478 | 55.5% |
| Median | 62 | |
| Range | 22–98 | |
| No. of prior palliative chemotherapy courses | ||
| 0 | 466 | 54.1% |
| 1–2 | 249 | 28.9% |
| >2 | 147 | 17.1% |
| Median | 0 | |
| Range | 0–12 | |
| No. of prior palliative RT courses | ||
| No | 756 | 87.7% |
| Yes | 106 | 12.3% |
| Median | 0 | |
| Range | 0–4 | |
| Time from primary diagnosis to metastasis diagnosis, mo | ||
| Median | 0.3 | |
| Range | 0–380.0 | |
| Time from metastasis diagnosis to RT consult, mo | ||
| Median | 1.5 | |
| Range | 0–273.6 | |
Abbreviations: CNS, central nervous system; ECOG PS, Eastern Cooperative Oncology Group performance status; KPS, Karnofsky performance status; RT, radiotherapy.
a
Composition of “Other” category: colorectal, 4.2%; pancreas, 1.7%; stomach, 0.35%; esophageal, 3.1%; gynecological, 4.9%; lymphoma, 2.1%; melanoma, 5.3%; renal, 5.2%; head and neck, 1.4%; CNS primary, 0.1%; sarcoma, 2.6%; and other, 9.4%.