Interpretation of Poisson Regression Coefficients poisson ceb menarche afm fecund eduyrs urban han policy, irm The interpretation of the actual Poisson regression coefficients are a little difficult Humer of oh This owes to the fact that the predicted number of children ever born for each woman His is nonlinearly related to the X variables Thus it is more straightforward and easier to 52941832 89s91.B7118 terpret the Poisson b coefficients in a multiplicative way. This is analogous to our discussion of odds ratios and percent change in odds ratios If we exponentiate the Poisson b coefficient, we get what Stata refers to listcoef, hel incidence rate ratios(IRR); these are very similar to odds ratios. Stata will 0 bserved$D:1.1132648 provide these if you ask for them(ask for irr)after the comma following the poisson equation comman An easier way is to use the listcoef urs-4-7,3 command and you get the Poisson b hHm:31:".56剩17 coefficients(1st column of data on slide page 43 ) the irr coefficients (4th column of coefficient lata on slide page 44, e b), and other pIzlp-walve for tst shange in expect caunt For unit increase in e botox gs SFx. stanard deviatio21 41 Interpretation of Poisson Regression Coefficients • The interpretation of the actual Poisson regression coefficients are a little difficult. This owes to the fact that the predicted number of children ever born for each woman, μi, is nonlinearly related to the X variables. Thus it is more straightforward and easier to interpret the Poisson b coefficients in a multiplicative way. This is analogous to our discussion of odds ratios and percent change in odds ratios. 42 • If we exponentiate the Poisson b coefficient, we get what Stata refers to as incidence rate ratios (IRR); these are very similar to odds ratios. Stata will provide these if you ask for them (ask for irr) after the comma following the poisson equation command. • An easier way is to use the listcoef command and you get the Poisson b coefficients (1st column of data on slide page 43), the irr coefficients (4th column of data on slide page 44, e^b), and other things. 22 43 poisson ceb menarche afm fecund eduyrs urban han policy, irr 44 listcoef, help