Table 1.
Patient characteristics (N = 45)
| Characteristic | No. of patients (%) |
|---|---|
| Sex | |
| Female | 33 (73) |
| Male | 12 (27) |
| Primary language | |
| English | 44 (98) |
| Spanish | 1 (2) |
| Race/ethnicity | |
| White | 31 (69) |
| Black or African American | 6 (13) |
| Asian | 4 (9) |
| Other | 3 (7) |
| Declined to answer | 1 (2) |
| Distance from residence to treatment center | |
| < 100 miles | 21 (47) |
| ≥ 100 miles | 24 (53) |
| Primary malignancy | |
| Breast cancer | 24 (53) |
| Lung cancer | 9 (20) |
| Melanoma | 4 (9) |
| Gastrointestinal cancer | 2 (4) |
| Others | 6 (13) |
| Systemic disease at the time of LM | |
| Stable | 23 (51) |
| Progressive | 22 (49) |
| How LM was diagnosed | |
| Imaging | 45 (100) |
| Cytology | 29 (64) |
| Presence of symptoms | 36 (80) |
| LM symptoms | |
| Headache | 14 (31) |
| Cranial nerves-related | 14 (31) |
| Limb weakness/numbness | 7 (16) |
| Seizure | 4 (9) |
| Prior intracranial radiation | |
| Yes | 15 (33) |
| No | 30 (67) |
| Parenchymal metastasis status at LM detection | |
| Active | 24 (53) |
| Inactive or none | 21 (47) |
| Received 30 GyRBE in 10 daily fractions | |
| Yes | 39 (87) |
| No | 6 (13) |
Abbreviation: LM = leptomeningeal metastasis