Validation and simplification of the Radiation Therapy Oncology Group recursive partitioning analysis classification for glioblastoma

J Li, M Wang, M Won, EG Shaw, C Coughlin… - International Journal of …, 2011 - Elsevier
PURPOSE: Previous recursive partitioning analysis (RPA) of patients with malignant glioma
(glioblastoma multiforme [GBM] and anaplastic astrocytoma [AA]) produced six prognostic
groups (I–VI) classified by six factors. We sought here to determine whether the classification
for GBM could be improved by using an updated Radiation Therapy Oncology Group
(RTOG) GBM database excluding AA and by considering additional baseline variables.
METHODS AND MATERIALS: The new analysis considered 42 baseline variables and …