==== Front Innov Aging Innov Aging innovateage Innovation in Aging 2399-5300 Oxford University Press US 10.1093/geroni/igaa057.1539 igaa057.1539 Abstracts Session 2992 (Paper) Social and Economic Challenges and Barriers for Older Adults and Their Families AcademicSubjects/SOC02600 Out-of-Pocket Costs Attributable to Dementia: A Longitudinal Analysis Oney Melissa 1 White Lindsay 2 Coe Norma 3 1 University of Pennsylvania, PHILADELPHIA, Pennsylvania, United States 2 RTI International, Seattle, Washington, United States 3 University of Pennsylvania, Philadelphia, Pennsylvania, United States 2020 16 12 2020 16 12 2020 4 Suppl 1 Program Abstracts from The GSA 2020 Annual Scientific Meeting “Turning 75: Why Age Matters”475 476 © The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America.2020This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.Abstract Alzheimer’s disease and related dementias (ADRD) affects 5.5 million Americans, and is expensive despite the lack of a cure or even treatments effective in managing the disease. The literature thus far has tended to focus on the costs to Medicare, despite the fact that one of the main characteristics of ADRD (the loss of independence and ability to care for oneself) incurs costs not covered by Medicare. In this paper, we use survey data for 2002-2014 from the Health and Retirement Study to estimate the out-of-pocket costs of ADRD for the patient and their family through the first 8 years after onset of symptoms, as defined by a standardized 27-point scale of cognitive ability. A two-part model developed by Basu and Manning (2010) allows us to separate the costs attributable to ADRD into two components, one driven by differences in longevity and one driven by differences in utilization. We consider total out-of-pocket expenditures, as well as out-of-pocket expenditures by category (i.e. hospital, nursing home, doctor, prescription drug, and other). Our results suggest that the out-of-pocket costs of ADRD are quite substantial over the first 8 years after onset. We also find that out-of-pocket spending is decreasing over the first 8 years, similar to the trend seen in Medicare expenditures. The results of this study highlight the financial burden of ADRD, particularly for the population paying out-of-pocket for care.