Control Event Rate
In epidemiology and biostatistics, the control event rate (CER) is a measure of how often a particular statistical event (such as response to a drug, adverse event or death) occurs within the scientific control group of an experiment.
This value is very useful in determining the therapeutic benefit or risk to patients in experimental groups, in comparison to patients in placebo or traditionally treated control groups.
Three statistical terms rely on CER for their calculation: Absolute risk reduction, Relative risk reduction and Number needed to treat.
Read more about Control Event Rate: Worked Example, See Also
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