Hi, I have the following code for a logistic regression:
proc surveylogistic data = mydata;
strata STRATUM ; cluster SECU ; weight LBWGTR08 ;
class Female (ref="1") Ethnicity (ref="1") married08 (ref="1") SRHealthCat08 (ref = "1") /param=ref ;
model SocPartAttendEventsDichot08 (Event = '1') = Age08 female ethnicity married08 SRHealthCat08 PopPct65up / expb clodds ;
run ;
I want to add interaction terms and tried adding female*married08 like this:
proc surveylogistic data = mydata;
strata STRATUM ; cluster SECU ; weight LBWGTR08 ;
class Female (ref="1") Ethnicity (ref="1") married08 (ref="1") SRHealthCat08 (ref = "1") /param=ref ;
model SocPartAttendEventsDichot08 (Event = '1') = Age08 female ethnicity married08 SRHealthCat08 PopPct65up female*married08 / expb clodds ;
run ;
But in the results, there was no odds ratio estimates for female*married08 - but this variable was included in other tables in the output. I'm not sure why there is no odds ratio - any help would be appreciated!
I'm using SAS Enterprise guide 6.1
