TABLE 3.
Tumor Characteristics
| Characteristic | Brain, No. (%) | Spine, No. (%) | Sample, No. (%) |
|---|---|---|---|
| Diagnosis | |||
| Ependymoma | 67 (59) | 88 (59) | 155 (59) |
| Anaplastic ependymoma | 25 (22) | 8 (5) | 33 (13) |
| Myxopapillary ependymoma | - | 37 (25) | 37 (14) |
| Subependymoma | 9 (8) | 2 (1) | 11 (4) |
| Tanycytic, mixed cell, or giant cell ependymoma | 3 (3) | 3 (2) | 6 (2) |
| Did not know name | 10 (9) | 11 (7) | 21 (8) |
| Grade | |||
| 1 | 9 (8) | 39 (26) | 48 (18) |
| 2 | 45 (40) | 42 (28) | 87 (33) |
| 3 | 28 (25) | 14 (9) | 42 (16) |
| Did not know grade | 32 (28) | 55 (37)a | 87 (33) |
| Extent of surgery | |||
| Biopsy | 3 (3) | 9 (6) | 12 (5) |
| Partial resection | 38 (33) | 34 (24) | 72 (28) |
| Complete resection | 72 (63) | 98 (68) | 170 (66) |
| No surgery | 1 (1) | 3 (2) | 4 (2) |
| Treatment throughout illness | |||
| Radiation | 75 (66) | 54 (36) | 129 (49) |
| Chemotherapyb | 27 (24) | 15 (10) | 42 (16) |
| Treatment after initial surgery | |||
| Chemotherapy | 3 (3) | 2 (2) | 5 (2) |
| Radiation | 39 (39) | 29 (23) | 68 (30) |
| Chemoradiation | 16 (16) | 6 (5) | 22 (10) |
| Chemotherapy, radiation, and radiosurgery | 2 (2) | - | 2 (1) |
| Radiation and radiosurgery | 1 (1) | - | 1 (.4) |
| Radiosurgery | - | 1 (1) | 1 (.4) |
| None | 39 (39) | 90 (70) | 129 (57) |
All data are from patient self-reports, and they have not been verified with medical records.
The number of patients varies from category to category due to missing data.
a
The value for the spine grade was initially 74 (50%). The grade was revised with the ependymoma variable and the grade variable.
b
The chemotherapy regimens were as follows: 1) intravenous cisplatin and etoposide for 6 months; 2) vincristine, cisplatin, and a few others; 3) vincristine, Etoposide, and 2 others; 4) Temozolomide for 6 months (1 week every month); and 5) Temozolomide, etoposide, carboplatin, and Bevacizumab.