Glioblastoma
The most common length of survival following diagnosis is 12 to 15 months, with fewer than 3% to 5% of people surviving longer than five years. Without treatment survival is typically 3 months.
Cancer survival rates
The most common type of cancer among children and adolescents is leukemia, followed by brain and other central nervous system tumors. Survival rates for most childhood cancers have improved, with a notable improvement in acute lymphoblastic lymphoma (the most common childhood cancer). Due to improved treatment, the 5-year survival rate for acute lymphoblastic lymphoma has increased from less than 10% in the 1960s to about 90% during the time period 2003-2009.