Hello
I am comparing two proportions for non-inferiority and I know I can use proc freq to do farrington manning, but I would like to be able to use proc ttest so that I would have:
proc ttest data=xx h0=noninf_margin alpha=xx;
class group;
var xx;
run;
Is there an option to do method=farrington manning in this code?
Thanks!
@SR79 wrote:Hello
I am comparing two proportions for non-inferiority and I know I can use proc freq to do farrington manning, but I would like to be able to use proc ttest so that I would have:
proc ttest data=xx h0=noninf_margin alpha=xx;
class group;
var xx;
run;
Is there an option to do method=farrington manning in this code?
Thanks!
This seems to have examples of what you want to accomplish:
https://support.sas.com/resources/papers/proceedings15/SAS1911-2015.pdf
see table 4
@SR79 wrote:
Thanks. The prpc ttest can give me noninf but it's not giving me Farrington
Manning CIs. Do you know if there's a function call I can do to incorporate
the FM?
Just use the CIs output by proc ttest.
Rows 1 and 2 in table 4 discuss how to use the standard CIs to determine if the inferiority hypothesis should be rejected.
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