“…Many researchers showed the impact of CCI on survival for several tumors mainly when it is > 3 50,51 ; few data are available for GBM, even if it is easy to think that comorbidity could influence the compliance with chemoradiation also in these patients. 52 The MGMT evaluation was available in 61 elderly patients (55%) and confirmed its prognostic value as shown by Brandes and colleagues. 5,53,54 In conclusion, our data show that a single prognostic factor, such as age, is insufficient to candidate elderly patients to a palliative approach.…”