Try the site at the bottom of this email( not all of it is relevant but the
following part could be of help???
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scalar ll0 = e(ll)
scalar ll1 = e(ll)
compute the value of the likelihood ratio test and its p-value.
. scalar lr = 2*(ll1-ll0)
. scalar p = .5*chi2tail(1,lr)
And display the results:
. di "hand lr is " lr " with p-value " p
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http://www.stata.com/statalist/archive/2002-09/msg00339.html
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