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International Parkinson and Movement Disorder Society
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Cortical Basal ganglia Functional Scale (CBFS)

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Cortical Basal ganglia Functional Scale (CBFS)


Acronym: CBFS

Authors: Anthony Lang, Glenn T. Stebbins, Adam Boxer

The CBFS is a novel rating scale that evaluates experiences in daily living (“EDL”), behavioral, language, and cognitive impairments in patients with 4 repeat tauopathies (4RTs). The CBFS consists of 14 questions on Motor EDL’s and 17 questions on Non-Motor EDL’s, each of which are rated on a Likert 5 point scale rating function from 0 to 4, where 0 = Normal or No problems and 4 = Severe problems. The questions are for the patient, but should be answered by both the patient and their caregiver together.

Original Publication │ View the Scale (PDF)

To request permission to use this Rating Scale, please fill out a Permission Request Form.

Year Published: 2020

Scale Last Updated: May 24, 2021

Assessment Type: Patient-Reported Outcome (PRO) and Caregiver Reported Outcome

Estimated Time to Administer the Scale: 25 minutes

Available Translations: None

Additional Scale Publications: None

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