In addition , at the end of the study , EKFS improved significantly in group A ( mean : 7.54 , 95 % CI : 6.3 , 8.8 ; P < 0.001 ) , while in group B we could not find significant improvement ( mean : 0.54 , 95 % CI : -0.41 , 1.5 ; P = 0.166 ) .