All possible logistic regressions for a set of confounders

[Nicapyke]

Hi all,

I'm building a logistic model to evaluate an epidemiologic research question and I want to automate the process of fitting logistic models for every possible combination of my potential confounders. I've done this before using OLS regression in SAS by specifying a certain algorithm, but I have no idea how to do it in Stata.

To clarify,
I have c1, c2, c3, c4 .... ck. I want to automate the process of fitting a model for
d = e + c1
d = e + c2
d = e + c1 + c2

etc

Can anyone help me code this?

Thanks,
Mike

[wangwang]

The user-written command -tuples- " produces a set of local macros, each containing a list of the names defining a tuple selected from a given list. ". You could use -forvaues- to write a loop to run your model. Type -findit tuples- to find and install it.
For example,

**************

sysuse auto, clear
tuples mpg turn length, display

forvalues i=1/7 {
logit foreign `tuple`i''
}

****************

Hi all,

I'm building a logistic model to evaluate an epidemiologic research question and I want to automate the process of fitting logistic models for every possible combination of my potential confounders. I've done this before using OLS regression in SAS by specifying a certain algorithm, but I have no idea how to do it in Stata.

To clarify,
I have c1, c2, c3, c4 .... ck. I want to automate the process of fitting a model for
d = e + c1
d = e + c2
d = e + c1 + c2

etc

Can anyone help me code this?

Thanks,
Mike

[Nicapyke]

Thanks for the tip, wangwang. To take it further, how would I code it if I just want to list the ORs produced by the logit regressions? I know I would use a "qui logit" command, but what would be the proper scalar to specify that picks out the OR in the logit output? If I can get that, then I would just do "list (scalarvariable)".

Thanks again!

Mike

[wangwang]

Like ?

************
sysuse auto, clear
tuples mpg turn length, display

forvalues i=1/7 {
qui logit foreign `tuple`i'', or
estimates table, stat(b) eform
}

**************

The user-written command -tuples- " produces a set of local macros, each containing a list of the names defining a tuple selected from a given list. ". You could use -forvaues- to write a loop to run your model. Type -findit tuples- to find and install it.
For example,

**************

sysuse auto, clear
tuples mpg turn length, display

forvalues i=1/7 {
logit foreign `tuple`i''
}

****************