About The Study: In this study, fine particulate matter air pollution exposure was associated with increased dementia severity and increased Alzheimer disease neuropathologic change. Population-based studies are needed to better understand this relationship.
Corresponding Author: To contact the corresponding author, Edward B. Lee, MD, PhD, email edward.lee@pennmedicine.upenn.edu .
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(doi:10.1001/jamaneurol.2025.3316)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
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JAMA Neurology