Re: reporting categories of continuous variable in a regression model



RCMR01@xxxxxxxxxxx wrote:
Thanks for your reply.

Sorry, for the confusion. AGE is an independent variable and is
significantly associated with the dependent variable (Y) in my model. I
could just report the regression coefficient of the variable AGE
because this represents the increase in Y for a 1 year increase in age.
However, this is not very meaningful and I would like to report the
values of Y by different age categories in my report. Any suggestions?

Just pick some ages and report the predicted values of Y!

One nice way to do this is in a plot: you get to show the whole relationship. You could plot the predictions as a line with the confidence region indicated somehow (e.g. a shaded region, or as error bars placed, say, every 10 years).

Bob

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Bob O'Hara
Department of Mathematics and Statistics
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FIN-00014 University of Helsinki
Finland

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