2020
DOI: 10.1016/j.jalz.2019.09.084
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Stratifying risk for dementia onset using large‐scale electronic health record data: A retrospective cohort study

Abstract: Introduction Preventing dementia, or modifying disease course, requires identification of presymptomatic or minimally symptomatic high‐risk individuals. Methods We used longitudinal electronic health records from two large academic medical centers and applied a validated natural language processing tool to estimate cognitive symptomatology. We used survival analysis to examine the association of cognitive symptoms with incident dementia diagnosis during up to 8 years of follow‐up. Results Among 267,855 hospita… Show more

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Cited by 26 publications
(44 citation statements)
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“…One explanation for this might be the level of information available. A recent EHR study interrogated narrative text (i.e., clinical notes) to give a gradient of cognitive function severity and demonstrated that greater severity is associated with mortality [35]. A finer grade indicator inclusive of severity would be beneficial in the prediction of outcomes.…”
Section: Discussionmentioning
confidence: 99%
“…One explanation for this might be the level of information available. A recent EHR study interrogated narrative text (i.e., clinical notes) to give a gradient of cognitive function severity and demonstrated that greater severity is associated with mortality [35]. A finer grade indicator inclusive of severity would be beneficial in the prediction of outcomes.…”
Section: Discussionmentioning
confidence: 99%
“…This method utilizes an expert-curated set of tokens associated with the National Institute of Mental Health (NIMH) Research Domain Criteria (RDoC) domains, informed by the NIMH RDoC Workgroup statements and expanded to include synonyms commonly found in health care notes. These estimated RDoC domain scores have been validated against clinician review and shown to predict longitudinal outcomes in psychiatric and nonpsychiatric populations (17)(18)(19), from emergency department, admission, and discharge notes (20,21). For this study, we investigated negative valence (primarily anxiety and depressive symptoms), positive valence (substance use, impulsivity, and mania), and global cognition.…”
Section: Symptom Characterization From Narrative Clinical Notesmentioning
confidence: 99%
“…Our findings raise the important question of why a subset of hospitalized psychiatric patients might experience short-term worsening in cognition, identifying a rarely-studied but potentially informative subgroup which may give insight into both important connections among mood and memory disorders and into the utility of RDoC based cognitive screening. [ 20 , 21 ] Further study of those who worsen, in some regards, is an important further direction for transdiagnostic research building on prior work within diagnostic groups. [ 3 , 22 24 ]…”
Section: Discussionmentioning
confidence: 99%