Table 1.
Baseline and oncological characteristics of all patients with brain metastasis
| Variable | White | Black | Hispanic and other | p-Value |
|---|---|---|---|---|
| Average age | 63.4 | 59.8 | 59.2 | <0.001* |
| Male sex (%) | 46.6 | 39.7 | 44.9 | <0.001* |
| Insurance | ||||
| Private (%) | 48.9 | 41.0 | 36.2 | <0.001* |
| Medicare (%) | 8.5 | 23.5 | 22.9 | |
| Medicaid (%) | 37.0 | 25.8 | 32.0 | |
| Other/unknown (%) | 5.6 | 7.8 | 8.9 | |
| Income quartile | ||||
| 1st (%) | 20.9 | 50.8 | 29.8 | <0.001* |
| 2nd (%) | 25.3 | 20.6 | 22.4 | |
| 3rd (%) | 25.6 | 16.4 | 23.8 | |
| 4th (%) | 28.2 | 12.2 | 23.9 | |
| Teaching hospital (%) | 60.2 | 73.0 | 66.5 | <0.001* |
| Large hospital size (%) | 69.3 | 69.1 | 72.3 | <0.001* |
| Average Charlson comorbidity index | 6.6 | 6.7 | 6.5 | <0.001* |
| Smoking (%) | 38.6 | 34.8 | 26.6 | <0.001* |
| Primary tumor type | ||||
| Lung (%) | 47.0 | 50.3 | 37.6 | <0.001* |
| Breast (%) | 16.1 | 25.3 | 23.2 | <0.001* |
| Prostate (%) | 3.8 | 4.3 | 3.4 | 0.004* |
| Colon (%) | 5.3 | 5.5 | 6.5 | <0.001* |
| Kidney (%) | 4.4 | 2.5 | 6.0 | <0.001* |
| Other/unspecified (%) | 28.1 | 16.5 | 26.6 | <0.001* |
| Visceral metastasis (%) | 20.0 | 20.3 | 20.2 | 0.727 |
| Bone metastases (%) | 19.1 | 22.1 | 23.4 | <0.001 |
| Paralysis (%) | 0.9 | 1.3 | 1.7 | <0.001 |
*Statistically significant result.