What is the case-control (CC) study?

Asked on 02.12.2018 in All Questions.
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The second study design included in the IARC report were case-control (CC) studies. One such study was by Erhardt et al. who conducted a CC consisting of 502 Caucasians investigating the association between alcohol, smoking, dietary factors and the risk of colorectal adenomas and hyperplastic polyps. The H.O.E. suggests that in high quality CC studies, the control group is similar to cases in every aspect except for the presence of the outcome. Erhardt’s CC lacks robustness as both cases and controls had adenomas, and the cases with...
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