There was no difference in the rate of change of cognitive test scores between the insulin glargine and standard care groups ( for the MMSE @ , @ % CI -@ to @ , p = @ ; and for the DSS -@ , -@ to @ , p = @ ) or between the omega-@ fatty acid and placebo groups ( for the MMSE @ , @ % CI -@ to @ , p = @ ; and for the DSS -@ , -@ to @ , p = @ ) .