Both groups made significant changes for COPM performance at 3 weeks ( estimated mean difference = 2.9 ; 95 % confidence interval [ CI ] , 2.3-3 .6 ; P < .001 for CIMT ; estimated mean difference = 2.8 ; 95 % CI , 2.2-3 .4 ; P < .001 for bimanual training ) that were maintained at 26 weeks .
