Glossary

Matching: A design strategy used in epidemiology to make the study groups as comparable as possible. For example, if the study groups are made to be comparable with respect to age, any difference between them cannot be caused by the influence of age. Matching can be for the whole study group or for individuals. Individual matching may be one-to-one or many-to-one, which means that more than one comparison person is selected for each study subject.