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• A study that compares two groups of people: those with the disease or condition under study (cases) and a very similar group of people who do not have the disease or condition (controls). Researchers study the medical and lifestyle histories of the people in each group to learn what factors may be associated with the disease or condition. For example, one group may have been exposed to a particular substance that the other was not. Also called retrospective study.

  National Cancer Institute - Cite This Source - This Definition
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  Cite Definition for case-control study

  American Psychological Association (APA)

  case-control study. (n.d.). Dictionary of Cancer Terms. Retrieved June 10, 2023, from website: http://www.expertglossary.com/definition/case-control-study.

  Chicago Manual of Style (CMS)

  case-control study. www.cancer.gov. Dictionary of Cancer Terms. National Cancer Institute. http://www.expertglossary.com/definition/case-control-study (accessed: June 10, 2023).

  Modern Language Association (MLA)

  "case-control study." Dictionary of Cancer Terms. National Cancer Institute. 10 June. 2023 http://www.expertglossary.com/definition/case-control-study.

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