st: Incomplete output when using -esttab- after -mlogit-

["Fogel, James" <james.fogel@bos.frb.org>]

Dear Statalist,

I have found that when I run an -mlogit- model and specify a base category other than the default, the results do not display properly when I use esttab. 

I run the following code:

	use http://www.stata-press.com/data/r11/sysdsn1, clear

	xi i.nonwhite i.site

	eststo clear
	eststo: mlogit insure _Inonwhite_1 _Isite_2 _Isite_3 if male, base(1)
	eststo: mlogit insure _Inonwhite_1 _Isite_2 _Isite_3 if !male, base(2)

	esttab, unstack
	esttab, unstack drop(o.*) 

But my output from the second esttab (with the option drop(o.*))  is missing a column. There should be a fourth column entitled "Indemnity": 
                                                (1)                                          (2)   
                                                 insure                          insure   
                                Prepaid        Uninsure        Uninsure   
------------------------------------------------------------
_Inonwhite_1     1.024          -0.307              -0.615   
                                (1.87)         (-0.27)                (-1.33)   

_Isite_2                  0.310          -2.111                -0.891   
                                (0.76)         (-1.92)              (-1.62)   

_Isite_3                 -0.680          -1.019              0.690   
                                 (-1.50)         (-1.37)             (1.52)   

_cons               0.224          -0.826*                  -1.657***
                                 (0.76)         (-2.04)              (-4.66)   
------------------------------------------------------------
N                     154                             462   

Does anyone know why this may be occurring? I have run across in a number of different specifications using different data sets. The issue seems to arise from the way Stata stores the coefficients for the omitted base categories, but I can't figure out why.

Thanks

Jamie Fogel

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/