What is a cohort study study?
What is a cohort study study?
Listen to pronunciation. (KOH-hort STUH-dee) A research study that compares a particular outcome (such as lung cancer) in groups of individuals who are alike in many ways but differ by a certain characteristic (for example, female nurses who smoke compared with those who do not smoke).
What are the two types of cohort study?
There are two types of cohort studies: Prospective and Retrospective. The two groups of cohorts (exposed and un-exposed) are followed prospectively over time to track the development of new disease.
What are the elements of cohort study?
Figure 1 offers a generic cohort study design with its three major components: (1) a defined population, (2) exposure status, and (3) outcomes.
What are types of cohort studies?
There are two types of cohort studies: prospective and retrospective (or historical) cohorts. Prospective studies follow a cohort into the future for a health outcome, while retrospective studies trace the cohort back in time for exposure information after the outcome has occurred.
What is the purpose of cohort study?
The main purpose of the cohort study is to estimate the risk or rate of an outcome among a cohort of individuals. A cohort study initially starts by identifying a large group of people that are free of the outcome of interest.
Is cohort study qualitative or quantitative?
quantitative
In a health care context, randomised controlled trials are quantitative in nature, as are case-control and cohort studies. Surveys (questionnaires) are usually quantitative .
What are the steps of cohort study?
Five steps in conducting a cohort study
- Select cohort population. All participants (both exposed and unexposed) in a cohort study must be at risk of developing the outcome.
- Measure exposure to risk factors.
- Follow up.
- Measure disease outcome.
- Estimate disease risk associated with exposure.
What are cohorts?
A group of individuals who share a common trait, such as birth year. In medicine, a cohort is a group that is part of a clinical trial or study and is observed over a period of time.
