Prognostic nomogram in elderly patients with glioblastoma.

2096 Background: Glioblastoma (GBM) is the most common malignant primary brain tumor. More than half the cases occur in patients aged ≥65 years; however, there is limited data on specific prognostic factors in these patients and there is a lack of easy to use nomograms in elderly GBM patients to provide them prognostic information. Methods: The Cleveland Clinic Brain Tumor and Neuro-Oncology Center’s database was used to identify elderly...