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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Estudio de casos y controles

Case-control study (KAYS-kun-TROLE STUH-dee)
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.



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.