Case Control Study Vs Cohort Study Ppt

Case Control Study Vs Cohort Study Ppt-25
They look back to assess whether there is a statistically significant difference in the rates of exposure to a defined risk factor between the groups.See Figure 1 for a pictorial representation of a case-control study design.This can suggest associations between the risk factor and development of the disease in question, although no definitive causality can be drawn. Cases should be selected based on objective inclusion and exclusion criteria from a reliable source such as a disease registry.

They look back to assess whether there is a statistically significant difference in the rates of exposure to a defined risk factor between the groups.See Figure 1 for a pictorial representation of a case-control study design.This can suggest associations between the risk factor and development of the disease in question, although no definitive causality can be drawn. Cases should be selected based on objective inclusion and exclusion criteria from a reliable source such as a disease registry.

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The specialty in cohort studies is that they can be longitudinal studies that go on for months or even years. In such an atmosphere, it is vital that the researcher maintains a good rapport with the cohort.

Now that we have a fair understanding of a cohort study let us move on to the next section.

Let us comprehend a case-control study through an example. The researcher first identified people from a particular region and put them into two groups as the cases and controls.

Cases refer to the people who have diabetes and controls refer to the people who do not.

This can be an experience that the individuals shared such as exposure to a traumatic event or even a particular year in which the individuals were born, graduated, etc.

For example, people born in 1991 belong to a single cohort since they share a specific characteristic with others (year of birth).

Through this article let us further examine the differences between a cohort study and a case-control study.

A cohort refers to a large group of people who share similar characteristics.

Case-Control Study: A case-control study is a research design used by researchers where the research begins with an outcome to comprehend the cause.

Cohort Study: A cohort study is an observational study. Cohort Study: The researcher studies the entire cohort without grouping as controls and cases.

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