Control Group (or Reference Group)

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Term Control Group or Reference Group
Description A group used as the baseline for comparison in epidemiologic studies or laboratory studies. This group is selected because it either lacks the disease of interest (case-control group) or lacks the exposure of concern (cohort study).
Definition Control Group (or Reference Group)

A group used as the baseline for comparison in epidemiologic studies or laboratory studies. This group is selected because it either lacks the disease of interest (case-control group) or lacks the exposure of concern (cohort study).

References http://www.epa.gov/iris/help_gloss.htm#c

 

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