Table 1.
Demographics of 54 patients with either Chiari malformation or posterior fossa tumors
| Chiari malformation (N = 22) | Posterior fossa tumor: medulloblastoma (N = 18) | Posterior fossa tumor: non-medulloblastoma (N = 14) | ||||
|---|---|---|---|---|---|---|
| N | % | N | % | N | % | |
| Sex | ||||||
| Males | 7 | 31.8 | 13 | 72.2 | 7 | 50.0 |
| Females | 15 | 68.2 | 5 | 27.8 | 7 | 50.0 |
| Ethnicity | ||||||
| Hispanic or Latino | 1 | 4.5 | 3 | 16.7 | 3 | 21.4 |
| Non-Hispanic | 20 | 90.9 | 15 | 83.3 | 9 | 64.3 |
| Unknown | 1 | 4.5 | 0 | 0.0 | 2 | 14.3 |
| Race | ||||||
| Black | 2 | 9.1 | 5 | 27.8 | 1 | 7.1 |
| More than one race | 1 | 4.5 | 0 | 0.0 | 0 | 0.0 |
| Unknown | 0 | 0.0 | 1 | 5.6 | 2 | 14.3 |
| White, non-Hispanic | 19 | 86.4 | 12 | 66.7 | 11 | 78.6 |