You need to append both datasets CIREN and CISS.
Do not forget to make an extra column (named "SourceDS" $15) with two distinct values : "row from CIREN" and "row from CISS".
Then do a canonical discriminant analysis to profile CIREN versus CISS (as if you would analyze heterogeneity between clusters and homogeneity within clusters).
proc candisc data=MyData out=outcan distance anova;
class SourceDS;
var Age weight gender height ISS_score and AIS_score;
run;
BR, Koen
