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National Estimates of Climate-Related Disasters among Older Adults with Dementia


 Climate-related disasters can have devastating consequences, particularly for the growing population of older adults with dementia. Increasingly, older adults with dementia are aging in place at home, where they often receive assistance for mobility or self-care activities from family and/or paid caregivers. Understanding this population’s experience with climate-related disasters is integral to mitigation, preparedness, and emergency response outside of institutional (e.g., nursing home) settings. We aimed to estimate the population of community-dwelling older adults—including those with dementia—who live in counties that experienced climate-related disasters. We used 2000-2016 data from the Health and Retirement Study (HRS), linked 2000-2018 with Federal Emergency Management Agency (FEMA) disaster data. We flagged each occurrence of climate-related disaster (e.g., hurricane, flood) and then identified HRS participants living in counties with a disaster declaration. Using survey weights, we obtained population-level estimates by disaster frequency and sample characteristics. In each two-year HRS period, we found that 14.26-20.50 million community-dwelling adults over age 65 in the contiguous US (32.2%-53.7%) resided in a county with at least one disaster. This includes 0.62 -1.12 million persons with dementia, 67.2%-76.8% of whom are reliant on caregivers. On average (per two-year period), more than one-third (36.3%) of community-dwelling older adults living with dementia lived in a county with a least one disaster. Policy makers and emergency planners should strongly consider the needs of older adults at the intersection of dementia and risk of climate-related disasters, with an eye towards ensuring access to mobility and self-care assistance.