Revision as of 23:35, 11 June 2017 edit 50.130.251.28 (talk) No edit summary ← Previous edit		Revision as of 20:52, 21 June 2017 edit undo 70.187.92.28 (talk) →Case-cohort study: Someone had incorrectly written that the control group for a case-cohort study is a random sample of the non-cases, but in fact the control group could include cases. Next edit →
Line 20: ==Case-cohort study== A case-cohort study is a design in which cases and controls are drawn from within a prospective study. All cases who developed the outcome of interest during the follow-up are selected and compared with a ~~subgroup~~random sample of the ~~non-~~cohort. This randomly selected control sample could, by chance, include some cases. Exposure is defined prior to disease development based on data collected at baseline or on assays conducted in biological samples collected at baseline. ==References==

Nested case–control study: Difference between revisions