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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Valor inicial

Baseline (BAYS-line)
An initial measurement that is taken at an early time point to represent a beginning condition, and is used for comparison over time to look for changes. For example, the size of a tumor will be measured before treatment (baseline) and then afterwards to see if the treatment had an effect.



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