Title: Message
Dear 
Statalist,
 
To predict 
probabilities and 95% CIs of the predicted probabilities after a multivariate 
logistic model, I have previously used the following predict 
command:
 
logistic y x1 x2 
x3
predict lr_index, 
index
predict se_index, 
stdp
 
gen p_hat = 
exp(lr_index)/(1 +exp(lr_index))
gen lb = lr_index - 
invnorm(0.975)*se_index
gen ub = lr_index + 
invnorm(0.975)*se_index
gen plb = 
exp(lb)/(1+exp(lb))
gen pub = 
exp(ub)/(1+exp(ub))
 
bysort x1: tabstat 
p_hat plb pub
 
However, this code 
does not allow me to predict probabilities, by(x1), while keeping the other 
covariates held constant, as the adjust command does.  It seems that 
keeping the other covariates held constant while examining the predicted 
probabilities individual covariates is useful.  Is it possible for me 
to do that?
 
Thanks in 
advance.
 
Greg 
Daniel
 
 
Gregory 
Daniel
Manager, Health Outcomes 
Research
Health Core, Inc.