Below an alternative graphical representation of difference in treatment effects. data ests; missing z; infile datalines delimiter=',' MISSOVER; input behandling time VASe VASs lowere uppere lowers uppers; datalines; 1,0,100,.z,100,100,.z,.z 1,1,78.88888889,.z,78.88888889,120,.z,.z 1,2,53.23552736,.z,53.23552736,100,.z,.z 1,3,27.7394636,.z,27.7394636,72.34042553,.z,.z 1,4,13.67521368,.z,13.67521368,78.72340426,.z,.z 1,5,7.948717949,.z,7.948717949,76.59574468,.z,.z 1,6,7.948717949,.z,7.948717949,77.65957447,.z,.z 1,7,2.948717949,.z,2.948717949,82.9787234,.z,.z 1,8,2.948717949,.z,2.948717949,81.91489362,.z,.z 2,0,.z,100,.z,.z,100,100 2,1,.z,64.40092166,.z,.z,11.11111111,64.40092166 2,2,.z,39.42105263,.z,.z,0,39.42105263 2,3,.z,22,.z,.z,0,22 2,4,.z,17.44444444,.z,.z,0,17.44444444 2,5,.z,9.545454545,.z,.z,0,9.545454545 2,6,.z,6.666666667,.z,.z,0,6.666666667 2,7,.z,5.409356725,.z,.z,0,5.409356725 2,8,.z,2.631578947,.z,.z,0,2.631578947 ;; run; ods graphics on /noborder; t