Table 6.
Distribution |
Event-free survival |
Overall survival |
||||
---|---|---|---|---|---|---|
Thalamic vs pontine | Thalamic vs supratentorial | Thalamic vs pontine | Thalamic vs supratentorial | Thalamic vs. pontine | Thalamic vs supratentorial | |
Total population | NA | NA | NS | <.0001 | .0079 | <.0001 |
Extent of surgery | NA | |||||
Total | <.001a | NA | NA | NA | NA | |
Subtotal | NSa | NS | NS | NS | NS | |
Partial | NSa | NS | .0131 | NS | .0499 | |
Biopsy/no surgery | <.001a | NS | .0357 | NS | NS | |
Grading | NSa | <.001a | ||||
WHO III | NS | <.0001 | .0133 | <.0001 | ||
WHO IV | NS | .0031 | NS | .0035 | ||
Sex | NSa | NSa | ||||
Male | NS | <.0001 | NS | .0003 | ||
Female | NS | .0002 | .0141 | .0028 | ||
Age at diagnosis | ||||||
Mean | <.001b | NSb | NA | NA | NA | NA |
<11 years | NSa | NSa | NS | .0001 | NS | .0016 |
≥11 years | NS | .0045 | NS | .006 | ||
Secondary HGG | .014a | NSa | NA | NA | NA | NA |
Tumor syndrome | NSa | NSa | NA | NA | NA | NA |
Primary metastasis | .015a | NSa | NA | NA | NA | NA |
Cox regression analysis | NA | NA | ||||
Tumor site | NS | <.001 | NS | <.001 | ||
Tumor resection | .016 | <.001 | .007 | <.001 | ||
Grading | NS | <.001 | NS | <.001 | ||
Sex | NS | NS | NS | .035 | ||
Age | NS | NS | NS | NS |
NA indicates not applicable; NS indicates not significant; pontine indicates pediatric pontine gliomas; supratentorial indicates pediatric supratentorial HGGs; thalamic indicates pediatric HGG.
Statistical significance was determined by the two-sided chi-square test (a) or by Student's t-test (b). All other testing for statistical significance was performed by using the log rank test.