The yearly change in the composite cognitive function score was -0.19 ( 99 % CI , -0.25 to -0.13 ) for participants randomized to receive LCPUFAs vs -0.18 ( 99 % CI , -0.24 to -0.12 ) for those randomized to no LCPUFAs ( difference in yearly change , -0.03 [ 99 % CI , -0.20 to 0.13 ] ; P = .63 ) .