Negative binomial regression analysis: Different results in SPSS and STATA?

Posted by Student073 on Jan 25, 2014; 5:16pm
URL: http://spssx-discussion.165.s1.nabble.com/Negative-binomial-regression-analysis-Different-results-in-SPSS-and-STATA-tp5724145.html

Hello everybody,

I run a negative binomial regression analysis using SPSS, and then did the same in STATA. I used the default options, I guess, and got different results in SPSS and in STATA.

For example, some of the coefficients are significant in SPSS (p<0.05), but not in STATA.

Could anyone help me? Why could this happen? I've used the same dataset in both cases...

Thanks a lot!