Association between results of an amyloid PET scan and healthcare utilization in individuals with cognitive impairment

Background The Imaging Dementia Evidence for Amyloid Scanning (IDEAS) study reports that amyloid PET scans help providers diagnose and manage Alzheimer's disease and related dementias (ADRD). Using CARE‐IDEAS, an IDEAS supplemental study, we examined the association between amyloid PET scan res...

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Published in:Journal of the American Geriatrics Society (JAGS) 2024-03, Vol.72 (3), p.707-717
Main Authors: Jutkowitz, Eric, Shewmaker, Peter, Ford, Cassie B., Smith, Valerie A., O'Brien, Emily, Shepherd‐Banigan, Megan, Belanger, Emmanuelle, Plassman, Brenda L., Burke, James R., Van Houtven, Courtney H., Wetle, Terrie
Format: Article
Language:English
Subjects:
Alzheimer's disease
amyloid PET scan
Cognitive ability
dementia
Dementia disorders
Emergency medical care
Health care
Health services utilization
healthcare utilization
Neurodegenerative diseases
Older people
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Summary:Background The Imaging Dementia Evidence for Amyloid Scanning (IDEAS) study reports that amyloid PET scans help providers diagnose and manage Alzheimer's disease and related dementias (ADRD). Using CARE‐IDEAS, an IDEAS supplemental study, we examined the association between amyloid PET scan result (elevated or non‐elevated amyloid), patient characteristics, and participant healthcare utilization. Methods We linked respondents in CARE‐IDEAS study to their Medicare fee‐for‐service records (n = 1333). We examined participants' cognitive impairment‐related, outpatient, emergency department (ED), and inpatient encounters in the year before compared with the 2 years after the amyloid PET scan. Results Individuals with a non‐elevated amyloid scan had more healthcare encounters throughout the overall study period than those with an elevated amyloid scan. Regardless of the amyloid scan result, cognitive impairment‐related and outpatient encounters overall decreased, but ED and inpatient encounters increased in the 2 years after the scan compared with the year prior. There was minimal evidence of differences in healthcare utilization between participants with an elevated and non‐elevated amyloid scan. Conclusions There is no difference in change in healthcare utilization between people with scans showing elevated and non‐elevated beta‐amyloid.
ISSN:0002-8614
1532-5415
DOI:10.1111/jgs.18696