Summary of the Tissue Array Samples by the Presence or Absence of Tie2 Expression in Glioma Cells and Their Different Degrees of Malignancy
| Tumor type | Total (n) | Tie2+, n (%) |
|---|---|---|
| GBM (WHO grade IV) | 67 | 57 (85) |
| Anaplastic astrocytoma (WHO grade III) | 46 | 23 (50) |
| Low grade astrocytoma (WHO grade II) | 3 | 0 (0) |
NOTE: P < 0.0001, determined using an exact Cochran-Armitage trend set.