RESULTS	On the long term , randomization to the mnemonic was associated with a better knowledge of the OAR as demonstrated by a higher score for the ankle component ( mnemonic 10.1 vs. control 8.9 ; 95 % CI for difference = 0.6 to 1.8 ) and for the foot ( mnemonic 7.8 vs. control 6.5 ; 95 % CI for difference = 0.8 to 1.9 ) .\