Hello.
I'm trying to find an association between Sex of child and Exposure to or having a Defect from babies delivered in different sites
Sex 0 "Male" 1 "Female"
Defect 1 "Yes" 0 "No"
Site 1 "Site" 1 2 "Site2" 3 "site3" 4 "Site4"
Table of Sex and defect by site
Site and Defect
Site1 Site2 Site3 Site4
Sex No Yes No Yes No Yes No Yes
Male 9 1 9 0 20 0 259 4
Female 2 0 5 0 11 0 112 13
Unclear 0 0 0 0 0 0 8 1
What would be the best measure of association taking site as an effect modifier, or should I use the Mantel-Haenszel odds ratio estimate.
xi: logistic Sex Anencephaly_1##i.site, or
vs
cc Sex Anencephaly_1, by(site)
And how would one interpret the results if Males are taken as the reference?

Thanks
Robert