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Matching

The aim of matching is remove confounding by matching subjects to be similar on a potential confounder. Doing so eliminates (or reduces) confounding, as well as reducing variability thereby increasing power.

Matching in Follow-Up Study

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Remove Confounding (C) in the study sample between Exposed (E) and unexposed by matching on the potential confounders.

Matching in Case-Control Study

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Remove Cofounding (C) in the sample study between cases and controls by matching on potential confounders where for each case we select a control with the same values for the confounding variables.

 

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