My guess is that the model has identifiability problems and that this is
then causing a problem (not caught properly) in the model fitting
optimizer. Is there any chance you could send data that produces the
problem (off list) and I can try it out (I will only use any data for
this
Hello,
As a part of a larger project, I am trying to run a conditional logistic
regression to look at whether maternal age is implicated in the risk of
developing gestational diabetes. I am using a matched case-control design,
where mothers with GDM were individually matched with up to 6
2 matches
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