After 12 months , small beneficial effects were seen for all primary outcomes in the IG : EuroQol visual analog scale score ( difference between IG and control group : 4.4 ; 95 % confidence interval , 7.7-1 .0 ; P = 0.011 ) , index for measuring participation restriction ( IMET ) score ( difference between IG and control group : 0.4 ; 95 % confidence interval , 0.07-0 .62 ; P = 0.013 ) .