topic Re: odds ratio by age category in Statistical Procedures

odds ratio by age category

ArchanaSudhir — Wed, 10 Feb 2016 20:37:25 GMT

HI,

I have used proc freq with cmh chisq and alpha options to generate odds ratio for my data.

Now I need to generate by age category.

Can I use class statement?

PROC freq data=mydata;

class agec;

tables trt /chisq cmh alpha=0.05;

RUN;

is giving me an error.

Thanks,

Archana

Rick_SAS — Wed, 10 Feb 2016 20:47:37 GMT

Here is the documentation for the FREQ procedure. All the valid syntax is explained. There is not a CLASS statement.

You can, however, run stratified analyses by using additional variables on the TABLES statement. Here is an example, also from the documentation.

PGStats — Thu, 11 Feb 2016 03:36:05 GMT

If you simply want separate tests for each age category, sort your data and use a BY statement.

SteveDenham — Mon, 15 Feb 2016 19:34:51 GMT

Try

PROC freq data=mydata;
tables agec*trt /chisq cmh alpha=0.05;
RUN;

Steve Denham