... Memory performance in healthy elderly without Alzheimer’s disease: effects of time and apolipoprotein-E Richard Mayeux MD, MSca,b,d,e,f,*, Scott A. Small MDa,b,e, Ming-Xin Tang, ... only in memory but also in Table 3Relationship of Time of Follow-up and APOE-4 to Memory, Visuospatial and Language Performance in Healthy Elderly Over 7years*Variable EstimatedStandarderrorRobust ... years) and including individ-uals of all ethnic groups. In those with less than 10 years of education, the APOE-4 allele *time interaction remainedstatistically significant indicating that memory...