Vitamin E and Donepezil for the Treatment of Mild Cognitive Impairment

The new england journal of medicine * CI denotes confidence interval. P values were not adjusted for multiple comparisons. In the donepezil group, when corrected for multiple comparisons, the P value at 24 months for all subjects became nonsignificant (P=0.052), and the P value at 36 months for APOE e 4 carriers also became nonsignificant (P=0.078).