Matched case-control studies are a classical Epidemiology study design. Case-control study designs are used to estimate the relative risk for a disease from a specific risk factor. The estimate is the odds ratio, which is a good estimate of the relative risk especially when the disease is rare. cmatch tabulates the number of matched pairs by c levels of an exposure variable. cmatch forms a c x c table of matched pairs by the exposure status of the case and the exposure status of the control. The data must be in the form of individual records.

This module should be installed from within Stata by typing "ssc install cmatch". Windows users should not attempt to download these files with a web browser.

Case-control study, Matched pairs, Tabulation