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Understanding Cancer Statistics

Learn definitions of statistical terms, how cancer statistics are used, and how population-based cancer statistics are calculated.

Key Information

  • Glossary of Statistical Terms

    Defines common statistical terms, NCI terminology, and the five key statistical measures of cancer: incidence, mortality, survival, prevalence, and lifetime risk. NCI monitors these cancer statistics to assess progress and to identify population subgroups and geographic areas in which cancer control efforts need to be concentrated.

  • Understanding Cancer Prognosis

    Prognosis describes how serious your cancer is and your chances of survival. Learn about survival statistics and how they are used to estimate prognosis.

  • Did You Know? Video Series

    SEER is developing the Did You Know? video series to highlight key topics and trends in cancer statistics in collaboration of NCI’s Office of Communications and Education. Many of the statistics presented in the videos are available in the annual SEER Cancer Statistics Review (CSR).