Ontology highlight
ABSTRACT: Introduction
To examine the risk of Alzheimer's disease (AD) among cancer survivors in a national database.Methods
Retrospective cohort of 3,499,378 mostly male US veterans aged ≥65 years were followed between 1996 and 2011. We used Cox models to estimate risk of AD and alternative outcomes (non-AD dementia, osteoarthritis, stroke, and macular degeneration) in veterans with and without a history of cancer.Results
Survivors of a wide variety of cancers had modestly lower AD risk, but increased risk of the alternative outcomes. Survivors of screened cancers, including prostate cancer, had a slightly increased AD risk. Cancer treatment was independently associated with decreased AD risk; those who received chemotherapy had a lower risk than those who did not.Discussion
Survivors of some cancers have a lower risk of AD but not other age-related conditions, arguing that lower AD diagnosis is not simply due to bias. Cancer treatment may be associated with decreased risk of AD.
SUBMITTER: Frain L
PROVIDER: S-EPMC5743228 | biostudies-literature | 2017 Dec
REPOSITORIES: biostudies-literature

Alzheimer's & dementia : the journal of the Alzheimer's Association 20170712 12
<h4>Introduction</h4>To examine the risk of Alzheimer's disease (AD) among cancer survivors in a national database.<h4>Methods</h4>Retrospective cohort of 3,499,378 mostly male US veterans aged ≥65 years were followed between 1996 and 2011. We used Cox models to estimate risk of AD and alternative outcomes (non-AD dementia, osteoarthritis, stroke, and macular degeneration) in veterans with and without a history of cancer.<h4>Results</h4>Survivors of a wide variety of cancers had modestly lower A ...[more]