http://alzheimer.wustl.edu/cdr/cdr.htm
The CDR is a 5-point scale used to characterize six domains of cognitive and functional performance applicable to Alzheimer disease and related dementias: Memory, Orientation, Judgment & Problem Solving, Community Affairs, Home & Hobbies, and Personal Care. The necessary information to make each rating is obtained through a semi-structured interview of the patient and a reliable informant or collateral source (e.g., family member).
The provided "Full" and "Refresher" training on this site is technically referred to as the Brief Training & Reliability Protocol (BTRP) as it is a subset of the complete CDR training that takes place in-person at the Knight ADRC.
The CDR table provides descriptive anchors that guide the clinician in making appropriate ratings based on interview data and clinical judgment. In addition to ratings for each domain, an overall CDR score may be calculated through the use of an algorithm. This score is useful for characterizing and tracking a patient's level of impairment/dementia:
0 = Normal
0.5 = Very Mild Dementia
1 = Mild Dementia
2 = Moderate Dementia
3 = Severe Dementia
A sample CDR Table is available by clicking HERE.
The CDR instrument and this training site were developed, in large part, through funding support from the following National Institute on Aging grants:
- Alzheimer's Disease Center Grant (AG05681)
- Healthy Aging & Senile Dementia (AG03991)
- Alzheimer's Disease Cooperative Study (AG10483)