Relative risk, odds ratio, and risk difference | Introduction
This video introduces the relative risk, odds ratio, and risk difference statistics and how to calculate them.
These values are often used in epidemiology studies examining how a risk factor relates to having a condition or not.
The relationship between the relative risk and odds ratio is discussed as well as common misinterpretations of them.
The video also describes how to calculate confidence intervals for the relative risk, confidence intervals for the odds ratio, and confidence intervals for the risk difference.
It ends by looking at examples of using these statistics to understand death on the Titanic and how the risk of lung cancer is associated with old age.
This is the video that answers the questions:
What is the relative risk?
What is the odds ratio?
What is the risk difference?
and
How do I calculate the relative risk?
How do I calculate the odds ratio?
How do I calculate the risk difference?
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