A fairly recent article addresses this issue. Logistic regression in
the medical literature: Standards for use and reporting, with
particular attention to one medical domain. Steven C. Bagley a,1 ,
Halbert White b , Beatrice A. Golomb c,. Journal of Clinical
Epidemiology 54 (2001) 979–985
(Furthermore, note that your logit estimation may be
tremendously biased in
general because of insufficient N)
Was may be a "sufficient N" ? I presume it depends on the number of
regressors and their distribution characteristics.
True. I can't tell you what *the* sufficient N is. Maybe you'll find
some simulation studies on the topic in statistical journals. My
personal rule is not to use logit if N<100 (and I'd be suspiciuos if
N<500). However: As you mentioned, this all strongly depends on model
complexity and distributional characteristics...