Dear professors, I have a question of how to calculate the difference and CI of continuous variable in Clinical trails:
For example:
Outcomes Drug Placebo Effect Estimate(95%CI)
NIHSS score change, Mean(SD) 1.2(3.75) 0.8(2.01) 0.4(-0.4 to 1.1)
I want to get the difference like this
I use the PROC MEANS:
proc means data = work.stroke noprint alpha=0.05;
class group;
var NIHSS_24h_minus_baseline;
output out=_runtemp_s1 n = n mean = mean q1=q1 q3=q3 std=std median=median nmiss=nmiss min=min max=max lclm=lclm_ uclm=uclm_ clm = clm_;
run;
Can any expert tell me how to get the difference and CI or is there a macro to compute the estimate effect, risk difference, OR and CI? Thanks!
Thanks, Dave, I have made a change to the example, I want to calculate the difference of the continuous variable and the confidence interval.
Thank you, and I want to ask whether PROC TTEST is appropriate for non-normal data and ordinal outcomes.
Thanks, I have done Hodges-Lehmann Estimation to check the difference of ordinal outcomes, was it correct?
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