9.9 Poisson Regression: The Model For Rate Data (what is an offset?)
This video discusses the poisson regression model equation when we are modelling rate data. The model differs slightly from the model used when the outcome is a count. The main difference is that we must include an "offset" in the model. This video explains the concept of an offset.... the offset is just a fancy word for the denominator in the rate....in the model, we must include this as a separate piece of information, which gets labelled as an offset.
These videos support a course I teach at The University of British Columbia (SPPH 500), which covers the use of regression models in Health Research. These videos were put together to use for remote teaching in response to COVID.
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