https://wikimd.org/index.php?action=history&feed=atom&title=Nested_case%E2%80%93control_study 2026-05-11T03:22:19Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wikimd.org/index.php?title=Nested_case%E2%80%93control_study&diff=5272518&oldid=prev 2024-02-24T20:09:55Z

<p>CSV import</p> <p><b>New page</b></p><div>&#039;&#039;&#039;Nested case–control study&#039;&#039;&#039; is a type of [[observational study]] in which cases (individuals with a certain health outcome) are selected from a larger cohort, and controls are selected from the same cohort but do not have the health outcome of interest. This design can reduce bias and increase the efficiency of [[epidemiological studies]].<br /> <br /> == Overview ==<br /> <br /> In a nested case–control study, the &#039;cases&#039; are those in the cohort who developed the outcome of interest during the follow-up period. The &#039;controls&#039; are a subset of the cohort who did not develop the outcome of interest during the follow-up period. The controls are typically matched to the cases on certain characteristics to reduce the potential for confounding.<br /> <br /> == Advantages ==<br /> <br /> Nested case–control studies have several advantages over traditional case–control studies. They can provide more accurate estimates of the [[relative risk]] because they are less prone to [[selection bias]] and [[information bias]]. They also allow for the examination of multiple outcomes and multiple exposures, which is not possible in a traditional case–control study.<br /> <br /> == Disadvantages ==<br /> <br /> Despite their advantages, nested case–control studies also have some disadvantages. They can be more complex and time-consuming to conduct than traditional case–control studies. They also require a large cohort to begin with, which may not always be feasible.<br /> <br /> == See also ==<br /> <br /> * [[Cohort study]]<br /> * [[Case-control study]]<br /> * [[Epidemiology]]<br /> * [[Observational study]]<br /> <br /> == References ==<br /> <br /> &lt;references /&gt;<br /> <br /> [[Category:Epidemiology]]<br /> [[Category:Medical research]]<br /> [[Category:Research design]]<br /> [[Category:Observational study]]<br /> <br /> {{Epidemiology-stub}}<br /> {{Medicine-stub}}</div>

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