st: robust with multinomial multilevel (gllamm)

["stata_user stata_user" <stata_dofile@hotmail.co.uk>]

Dear All,

I am using the gllamm program to estimate a multilevel multinomial model.

I have the folliwing  problem:

 Without the robust option one of my variables (binary variable) has a risk 
ratio of 2.2 but not significant , with the robust option the parameter 
becomes significant.

My data is individuals nested with 15 regions, my outcome is a 4 categorical 
variable.

I adjust for a continuous variables and 2  other categorical variables

Could you please advise on this?

Kind regards,

Sami

_________________________________________________________________
Txt a lot? Get Messenger FREE on your mobile.  
https://livemessenger.mobile.uk.msn.com/

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/