The Experimental Event Rate (EER) is the proportion of subjects in a treatment group who experience a specific outcome in a clinical trial. It is a critical component in assessing the effectiveness of an intervention by comparing it to the Control Event Rate (CER).

Experimental Event Rate

A treatment group is a set of subjects in an experiment who receive the experimental intervention or treatment being studied, allowing researchers to assess its effects compared to a control group. It is crucial for determining the efficacy and safety of new interventions, as it provides direct evidence of the treatment's impact on the subjects.

Treatment Group

Specific outcome

A clinical trial is a research study conducted with human participants to evaluate the safety, efficacy, and optimal usage of a medical intervention, such as a drug, device, or treatment strategy. These trials are crucial for advancing medical knowledge and are typically conducted in phases, each with specific objectives and increasing numbers of participants.

Clinical Trial

Effectiveness of an intervention

Control Event Rate (CER) is the proportion of participants in a control group of a study who experience a specific event or outcome. It serves as a baseline to compare the effect of an intervention in experimental groups, crucial for calculating measures like relative risk and absolute risk reduction.

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