Table 1. Characteristics of patients with metastatic lung cancer to bones.
| Characteristics | Total (n=13,541) | Percent | Population (n=96,107) | Percent |
|---|---|---|---|---|
| Age, years | ||||
| 0–64 | 4,940 | 36.48 | 33,993 | 35.37 |
| 65–74 | 4,648 | 34.33 | 34,722 | 36.13 |
| 75+ | 3,953 | 29.19 | 27,392 | 28.50 |
| Gender | ||||
| Male | 7,827 | 57.80 | 48,975 | 50.96 |
| Female | 5,714 | 42.20 | 47,132 | 49.04 |
| Race | ||||
| Black | 1,704 | 12.58 | 11,735 | 12.21 |
| White | 11,837 | 87.42 | 84,372 | 87.79 |
| Total number of in situ/malignant tumors for patient | ||||
| N=1 | 10,497 | 77.52 | 86,996 | 90.52 |
| N>1 | 3,044 | 22.48 | 9,111 | 9.48 |
| Primary site | ||||
| Main bronchus | 630 | 4.65 | 3,036 | 3.16 |
| Upper lobe | 7,597 | 56.10 | 55,530 | 57.78 |
| Middle lobe | 539 | 3.98 | 4,480 | 4.66 |
| Lower lobe | 3,816 | 28.18 | 28,352 | 29.50 |
| Overlapping lesion of lung | 130 | 0.96 | 1,127 | 1.17 |
| Lung, NOS | 829 | 6.12 | 3,582 | 3.73 |
| Histology | ||||
| Adenocarcinoma | 6,679 | 49.32 | 38,730 | 40.30 |
| Squamous cell carcinoma | 2,698 | 19.92 | 28,084 | 29.22 |
| SCLC | 1,255 | 9.27 | 5,319 | 5.53 |
| NSCLC | 1,086 | 8.02 | 4,773 | 4.97 |
| Other | 1,823 | 13.46 | 19,201 | 19.98 |
| Grade | ||||
| Grade I | 636 | 4.70 | 11,272 | 11.73 |
| Grade II | 3,245 | 23.96 | 32,806 | 34.13 |
| Grade III | 8,485 | 62.66 | 46,669 | 48.56 |
| Grade IV | 1,175 | 8.68 | 5,360 | 5.58 |
| Tumor size | ||||
| 0≤X≤3 | 2,781 | 20.54 | 40,545 | 42.19 |
| 3<X≤5 | 4,332 | 31.99 | 26,098 | 27.16 |
| 5<X≤7 | 3,199 | 23.62 | 15,496 | 16.12 |
| >7 | 3,229 | 23.85 | 13,968 | 14.53 |
| Laterality | ||||
| Left-origin of primary | 5,683 | 41.97 | 39,691 | 41.30 |
| Right-origin of primary | 7,738 | 57.14 | 56,003 | 58.27 |
| Bilateral | 120 | 0.89 | 413 | 0.43 |
| Surgery performed | ||||
| Yes | 463 | 3.42 | 42,481 | 44.20 |
| Unknown | 18 | 0.13 | 416 | 0.43 |
| No | 13,060 | 96.45 | 53,210 | 55.37 |
| Radiation recode | ||||
| Yes | 7,048 | 52.05 | 35,274 | 36.70 |
| No | 6,493 | 47.95 | 60,833 | 63.30 |
| Chemotherapy recode | ||||
| Yes | 7,733 | 57.11 | 40,250 | 41.88 |
| No | 5,808 | 42.89 | 55,857 | 58.12 |