what is meant by nested case control when comparing two cohorts, what is the difference between nested case control and case cohort which of the following is the better sted case-control design? what is meant by nested case control what to use a sted case control what design is a case cohort which is the better design of case control or case study? what is the purpose of the chosen case control? what is the difference between a case-control and a cohort nested case control definition what is the purpose of a case-control what type of sample is a case-control which design has been used with the nested case cohort? when do you use nested case control or case cohort what is the purpose of nested case-control study what is meant by sted case control what is the design of the cohort sted case control vs cohort study what is the case study design in cohort design what is the difference between a case-control and a cohort design