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.

Control Event Rate

proportion of participants

A control group is a baseline group in an experiment that does not receive the experimental treatment, allowing researchers to isolate the effect of the treatment by comparing it to this untreated group. It is essential for ensuring the validity of an experiment's results by accounting for placebo effects and other external factors that might influence the outcome.

control group

specific event or outcome

A baseline serves as a reference point against which changes, progress, or deviations can be measured, providing a standard for comparison in various fields such as project management, data analysis, and research. Establishing a clear and accurate baseline is crucial for evaluating performance, identifying trends, and making informed decisions.

baseline

effect of an intervention

experimental groups

calculating measures

Relative risk is a measure used in epidemiology to determine the strength of the association between an exposure and an outcome by comparing the risk of the outcome in the exposed group to the risk in the non-exposed group. It provides insight into how much more (or less) likely the outcome is to occur in the exposed group compared to the non-exposed group, aiding in risk assessment and decision-making.

relative risk

Absolute Risk Reduction (ARR) quantifies the decrease in risk of a certain event occurring due to an intervention, calculated as the difference in event rates between the control group and the treatment group. It provides a straightforward measure of the effectiveness of an intervention, crucial for clinical decision-making and patient communication.

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