Table 1.
Sample Characteristics for Categorical Variables
| Variable | No. | Percentage |
|---|---|---|
| Sex | ||
| Male | 23 | 53.5% |
| Female | 20 | 46.5% |
| Ethnicity | ||
| Non-Hispanic Caucasian | 26 | 60.5% |
| Hispanic | 14 | 32.6% |
| African American | 1 | 2.3% |
| Other | 2 | 4.7% |
| Collapsed (binary) ethnicity | ||
| Non-Hispanic Caucasian | 26 | 60.5% |
| Other | 17 | 9.5% |
| Diagnoses | ||
| Medulloblastoma | 24 | 55.8% |
| PNET | 12 | 27.9% |
| Ependymoma | 5 | 11.6% |
| CPC | 2 | 4.7% |
| Collapsed (binary) diagnoses | ||
| Medulloblastoma | 24 | 55.8% |
| Other | 19 | 44.2% |
| Regimen | ||
| D | 23 | 53.5% |
| D2 | 20 | 46.5% |
| Tumor location | ||
| Infratentorial | 30 | 69.8% |
| Supratentorial | 13 | 30.2% |
| RT | ||
| Yes | 12 | 27.9% |
| No | 31 | 72.2% |
Abbreviations: CPC, choroid plexus carcinoma; PNET, primitive neuroectodermal tumor; RT, radiation therapy.
Ethnicity and Diagnoses were collapsed into binary options for certain analyses (as described in the Methods and Results sections).