Abstract
This study examined the longitudinal association between dementia, activity participation, the coronavirus disease 2019 pandemic period, and 1-year mental health changes. We obtained data from the National Health and Aging Trends Study in the United States. We included 4,548 older adult participants of two or more survey rounds between 2018 and 2021. We identified baseline dementia status, and assessed depressive symptoms and anxiety at baseline and follow-up. Dementia and poor activity participation were independently associated with an increased prevalence of depressive symptoms and anxiety. Dementia care and support should address emotional and social needs under continued public health restrictions.