Description: Presented at the Living to 100 Symposium, January 2011. This paper examines the relationship between the earliest stages of dementia—mild cognitive impairment—and mortality. Using data from long-term care insurance applicants, and linking this to the Social Security Master Death File, the authors focus on the classification results of two cognitive screens used at various times in the underwriting process. Applying the Cox Proportional Hazards Model as well as relative mortality ratio analysis, the authors show that the proportion of individuals classified as cognitively impaired have significantly higher relative mortality compared to those classified as cognitively intact.