Non-parametric and semi-parametric estimation of quantile residual lifetime for Lead Investigator: Yixin Wang Institution : NACC E-Mail : yxwang@uw.edu Proposal ID : 365 Proposal Description: The aim of the study is to propose a new method to get better quantile residual lifetime estimates after onset of dementia with introduced quantile residual life model, and apply this method to study the NACC data. The effects of covariates are also considered in the part of semi-parametric estimation of quantile residual lifetime.