Case-control studies are used to determine if there is an association between an exposure and a specific health outcome. These studies proceed from effect (e.g. health outcome, condition, disease) …

Jan 1, 2020 · PDF | A case-control study is a type of observational study commonly used to look at factors associated with diseases or outcomes.

Case-control studies are particularly appropriate for studying disease outbreaks, rare diseases, or out-comes of interest. This article describes several types of case-control designs, with simple graphical …

If sampling does not lead to bias and the sample can approximate the person-years of distribution, a case-control study is a more efficient design (i.e. for same number of people, more precision).

In this type of study, a case is identified (for example, a person who had a heart attack) and the level of exposure is ascertained for a short time period preceding the event (the at-risk period).

It covers the fundamentals of case-control study design and analysis as well as more recent developments, including two-stage studies, case-only studies, and methods for case-control …

Case-control studies are particularly useful for studying the cause of an outcome that is rare and for studying the effects of prolonged exposure.