What is a cohort? Cohort defined for app marketers

cohort  Prospective cohort studies in particular often use secondary research data, such as existing medical records or databases, to initially identify หมายเหตุ: P คือ prospective cohort study และ R คือ retrospective cohort study CPE 245 วงการยา com Page 4 PLUSPLUSCONTINUING PHARMACEUTICAL

A cohort study identifies a group of people and follows them over a period of time The aim is to look at how a group of people are exposed to different risk In schools which have adopted a policy of cohort entry, new entrants are able to start school in cohorts but only after they have turned 5 There are 2 entry

The Norwegian Mother, Father and Child Cohort Study is a unique study where over 90000 pregnant women were recruited from 1998 to 2008  Cohort studies are types of observational studies in which a cohort, or a group of individuals sharing some characteristic, are followed up over time,