Period versus cohort measures: what's the difference?

cohort noun cohort Cohort studies are used to study incidence, causes, and prognosis Because they measure events in chronological order they can be used to distinguish between cohort Example · From the Epi Info™ main page, select StatCalc · Select Cohort or cross sectional · Select the Two-sided confidence level of 95% from the drop-down

cohort หมายเหตุ: P คือ prospective cohort study และ R คือ retrospective cohort study CPE 245 วงการยา com Page 4 PLUSPLUSCONTINUING PHARMACEUTICAL