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Analytical Study Designs

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Hello and welcome. My name is Manoj Murhekar. And in today's lecture, I will give you an overview of Co Hort and Case-control studies. In the previous lectures, my colleagues have given you an overview of different study designs. Let us have a quick recap. Epidemiological studies are broadly divided into two categories. First is experimental studies and second is observational studies. And this categorisation is based on this question: Did the investigator assign exposures? So, in experimental studies, the investigator assigns gthe exposure and this exposure could be in terms of new intervention, new drugs, or new vaccines. These factors are further classified into randomised and non-randomised studies based on random allocation