IGNOU MFN 9 2016 2017 - Case – Control study - Intervention study

Question

Case – Control study - Intervention study

26 Dec 2017

Answer :

Word Count : 293

Case-control studies- Case-control studies are based upon the identification of two populations of individuals - one ('cases') comprising those who have experienced the outcome of interest (e.g. Disease) and one ('controls') comprising those who have not experienced the outcome of interest (but who are otherwise comparable to the cases). As the outcome itself is involved in the selection of participants, no measures of disease frequency can be made from a case-control study, which

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