CBTRUS Fact Sheet 2021

Data are obtained on all newly diagnosed primary brain and CNS tumors from two national sources: the National Program of Cancer Registries (NPCR), part of the Centers for Disease Control and Prevention (CDC), and the Surveillance, Epidemiology and End Results (SEER) program within the National Institute of Health's National Cancer Institute (NCI) for diagnosis years 2014-2018. Cancer surveillance data (of all types of cancer) from these two programs are combined and are referred to as the United States Cancer Statistics (USCS), the official source for federal cancer data. There are 52 population-based central cancer registries that contribute to this data collection effort. They include cancer registries known as central cancer registries from all 50 states plus the District of Columbia and Puerto Rico. The facts provided below are based on the most up-to-date information available and includes almost 100% of the US population.