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A nested case–control (NCC) study is a variation of a case–control study in which cases and controls are drawn from the population in a fully enumerated cohort. [1] Usually, the exposure of interest is only measured among the cases and the selected controls. Thus the nested case–control study is more efficient than the full cohort design.
Although in classical case–control studies, it remains true that the odds ratio can only approximate the relative risk in the case of rare diseases, there is a number of other types of studies (case–cohort, nested case–control, cohort studies) in which it was later shown that the odds ratio of exposure can be used to estimate the relative ...
Clinical study design. Blind experiment; Case report; Case series; Case study; Case-control study; Clinical control group; Cohort study; Cross-sectional study; Crossover study; First-in-man study; Longitudinal study; Minimisation; Multicenter trial; Nested case-control study; Observational study; Open-label trial; Placebo-controlled studies ...
Cohort, nested case-control, cardiovascular trial follow-up study (or systematic review or meta-analysis of these study types) that measures a novel risk factor and estimates its predictive value after adjusting for Framingham variables; Exclude criteria: No data
A nested case-control study is a case control nested inside of a cohort study. The procedure begins like a normal cohort study, however, as participants develop the outcome of interest they are selected as cases. Once the cases are identified, controls are selected and matched to each case.
When choosing a study design, many factors must be taken into account. Different types of studies are subject to different types of bias. For example, recall bias is likely to occur in cross-sectional or case-control studies where subjects are asked to recall exposure to risk factors. Subjects with the relevant condition (e.g. breast cancer ...
The New York judge who presided over Donald Trump’s hush money case on Friday sentenced the president-elect to an “unconditional discharge,” meaning he is now a convicted felon in the eyes ...
Nested case–control study; P. ... Prospective cohort study; R. Retrospective cohort study This page was last edited on 6 December 2016, at 18:19 (UTC ...