Relative to admission scores , intervention group participants had higher functional independence ( mean difference ( MD ) 2.3 , 95 % confidence interval ( CI ) 0.5 to 4.1 , P = 0.01 ) and health-related quality of life ( MD 0.04 , 95 % CI 0.01 to 0.07 , P = 0.009 ) on discharge and may have had a shorter length of stay by 2 days ( 95 % CI 0 to 4 , P = 0.1 ) when compared to control group participants .