Clinical Dementia Rating (CDR) Scale
Stages cognitive and functional impairment using six clinician-rated domains. Enter the established box score for each domain.
How to use: Rate each domain independently as decline from the person’s previous usual level due to cognitive loss, then select one box score per domain.
Calculated stage
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Global CDR stage key
Clinical and licensing notes
The Global CDR is a staging measure, not a stand-alone diagnosis. It was developed for symptomatic Alzheimer disease and may not fit every dementia syndrome or unusual score combination.
The CDR is a copyrighted instrument. Ensure that your organisation has the required permission or licence before clinical, research, teaching, or commercial use. This page intentionally accepts pre-assigned box scores and does not reproduce the copyrighted descriptive scoring table.
Reference: Morris JC. The Clinical Dementia Rating (CDR): current version and scoring rules. Neurology. 1993;43(11):2412–2414. See the official CDR resources.
