THE CLINICAL DEMENTIA RATING SCALE

 

NONE

0

QUESTIONABLE

0.5

MILD

1

MODERATE

2

SEVERE

Memory

No memory loss or slight

Inconsistent forgetfulness

Consistent slight forgetfulness; partial recollection of events; "benign" forgetfulness

Moderate memory loss: more marked for recent events; defect interferes with everyday activity

Severe memory loss, only highly learned material retrained: new material rapidly lost

Severe memory loss only fragments remain

Orientation

Fully oriented

Fully oriented but with slight difficulty with time relationships

Moderate difficulty with time relationships; oriented for place
at examination; may have geographic disorientation elsewhere

Severe difficulty with time relationships; usually disoriented to time, often to place

Oriented to person only

Judgement and Problem Solving

Solves everyday problems and handles business and financial affairs well; judgement good in relation to past performance

Slight impairment in solving problems, similarities and differences

Moderate difficulty in handling problems, similarities and differences; social judgement usually maintained

Severely impaired in handling problems, similarities and differences; social judgment usually impaired

Unable to make judgements or solve problems

Community
Affairs

Independent function as usual in job, shopping, volunteer and social groups

Slight impairment in these activities

Unable to function independently at these activities though may still be engaged in some; appears normal to casual inspection

No pretense of independent function home; appears well enough to be taken to functions outside the family home

Appears too ill to be taken to functions outside the family home

Home and Hobbies

Life at home, hobbies and intellectual interests well maintained

Life at home, hobbies and intellectual interests slightly impaired

Mild but definite impairment of functions at home; more difficult chores, and complicated hobbies and interests abandoned

Only simple chores preserved; very restricted interests, poorly maintained

No significant function in the home

Personal Care

Fully capable of self-care

 

Needs prompting

Requires assistance in dressing hygiene and keeping of personal effects

Requires much help with personal care; frequent incontinence


Score only as decline from previous usual level due to cogntive loss, not impairment due to other factors.
Morris, J.C. (1993) The Clinical Dementia Rating (CDR): current version and scoring rules. Neurology, 43, 2412-4.

Return