odds ratio by age category

[ArchanaSudhir]

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 · Accepted solution]

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]

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

[SteveDenham]

Try

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

Steve Denham