Drug conversion in Alzheimer's Disease Lead Investigator: Raiyan Khan Institution : Stanford University E-Mail : rrkhan@stanford.edu Proposal ID : 580 Proposal Description: The focus of this study is to understand the effect of sex, APOE genotype, and medication use on the conversion risk from healthy controls to MCI or AD, as well as from MCI to AD. We would like to apply survival analysis to the data set in order to elucidate whether certain drugs confer a protective effect. The data set will be corrected for a number of socioeconomic factors that we have requested in the data package. Analysis will be completed using the cox proportional hazard model.