TABLE 2.
Univariate analysis of 5- and 10-year EFS
| Comparison | 5-year EFS* | 10-year EFS |
|---|---|---|
| sex | ||
| % male | 55 | 48.9 |
| % female | 65 | 57.8 |
| p value | 0.619 | 0.702 |
| age | ||
| % <10 yrs | 57.1 | 53.1 |
| % ≥10 yrs | 61.8 | 49.5 |
| p value | 0.742 | 0.856 |
| location | ||
| % midbrain | 67.6 | 58 |
| % pons | 66.7 | 60 |
| % medulla | 36.6 | 36.6 |
| p value | 0.091 | 0.141 |
| WHO grade | ||
| % I | 54.1 | 54.1 |
| % II | 80 | 42.7 |
| p value | 0.195 | 0.656 |
| intrinsic vs exophytic | ||
| % intrinsic | 72.3 | 56.8 |
| % exophytic | 45.6 | 45.6 |
| p value | 0.054 | 0.147 |
| extent of resection | ||
| % GTR | 75 | 75 |
| % NTR | 25.7 | 25.7 |
| % STR | 33.3 | none† |
| p value | 0.165 | 0.165 |
| mode of treatment | ||
| % radiation | 71.4 | 61.2 |
| % surgery only | 42.1 | 42.1 |
| % surgery + radiation | 71.4 | 71.4 |
| p value | 0.225 | 0.304 |
*
Probability values obtained using the log-rank test.
†
Ten-year estimate for STR cannot be given because all patients undergoing STR either had treatment failure or were censored before reaching 10 years.