Period versus cohort measures: what's the difference?

Case-control and Cohort studies: A brief overview cohort Cohort analysis, method used in studies to describe an aggregate of individuals having in common a significant event in their life histories cohort What is a Cohort Study? A cohort study is a type of quantitative research They are often described as natural experiments (Schmidt & Brown,

cohort 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