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st: Poisson Rates


From   [email protected]
To   "[email protected]" <[email protected]>
Subject   st: Poisson Rates
Date   Mon, 12 Jan 2009 12:00:31 -0800

I created a poisson model with the number of injuries as the depedent variable and age, experience and age*experience as the predictors. Age and experience are categorical variables. We have a lot of people with the similar ages and experience levels so I'm categorizing age and experience into 1 year intervals. My outcome is then the number injuries predicted for each of these age/experience groups. I'm first plotting experience vs the number of predicted injuries by various 1-year age categories. In order to turn the y-axis (counts) into rates can I divide each of these 1-year experience groups by the number of hours worked for that 1-year experience group?
Thanks for your help.

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