Single Biggest Cancer Dictionary in the World

What is

longitudinal cohort study

?

Pronunciation: /ˌlɑnʤəˈtudənəl ˈkoʊhɔrt ˈstədi/

longitudinal cohort study

Definition

A type of research study that follows large groups of people over a long time. The groups are alike in many ways but differ by a certain characteristic (for example, female nurses who smoke and those who do not smoke). A particular outcome (such as the development of lung cancer) is compared between the groups. The same people in each group are assessed many times throughout the study.