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- Nested_case-control_study abstract "A nested case control (NCC) study is a variation of a case-control study in which only a subset of controls from the cohort are compared to the incident cases. In a case-cohort study, all incident cases in the cohort are compared to a random subset of participants who do not develop the disease of interest. In contrast, in a nested-case-control study, some number of controls are selected for each case from that case's matched risk set. By matching on factors such as age and selecting controls from relevant risk sets, the nested case control model is generally more efficient than a case-cohort design with the same number of selected controls. Usually, the exposure of interest is only measured among the cases and the selected controls. Thus the nested case control study is less efficient than the full cohort design. The nested case control study can be analyzed using methods for missing covariates.The NCC design is often used when the exposure of interest is difficult or expensive to obtain and when the outcome is rare. By utilizing data previously collected from a large cohort study, the time and cost of beginning a new case-control study is avoided. By only measuring the covariate in as many participants as necessary, the cost and effort of exposure assessment is reduced. This benefit is pronounced when the covariate of interest is biological, since assessments such as gene expression profiling are expensive, and because the quantity of blood available for such analysis is often limited, making it a valuable resource that should not be used unnecessarily.".
- Nested_case-control_study wikiPageID "2946860".
- Nested_case-control_study wikiPageRevisionID "600140822".
- Nested_case-control_study hasPhotoCollection Nested_case-control_study.
- Nested_case-control_study subject Category:Cohort_study_methods.
- Nested_case-control_study subject Category:Design_of_experiments.
- Nested_case-control_study subject Category:Epidemiology.
- Nested_case-control_study subject Category:Nursing_research.
- Nested_case-control_study type Ability105616246.
- Nested_case-control_study type Abstraction100002137.
- Nested_case-control_study type Cognition100023271.
- Nested_case-control_study type CohortStudyMethods.
- Nested_case-control_study type Know-how105616786.
- Nested_case-control_study type Method105660268.
- Nested_case-control_study type PsychologicalFeature100023100.
- Nested_case-control_study comment "A nested case control (NCC) study is a variation of a case-control study in which only a subset of controls from the cohort are compared to the incident cases. In a case-cohort study, all incident cases in the cohort are compared to a random subset of participants who do not develop the disease of interest. In contrast, in a nested-case-control study, some number of controls are selected for each case from that case's matched risk set.".
- Nested_case-control_study label "Nested case-control study".
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- Nested_case-control_study sameAs Q17071134.
- Nested_case-control_study sameAs Q17071134.
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- Nested_case-control_study wasDerivedFrom Nested_case-control_study?oldid=600140822.
- Nested_case-control_study isPrimaryTopicOf Nested_case-control_study.