Clinical Dementia Rating Scale

Content
Basic information

Name: Clinical Dementia Rating Scale

Abbreviation: CDR

Versions: 3

Synonyms: 147

Description: The Clinical Dementia Rating (CDR) Scale 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 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 (Knight Alzheimer Disease Research Center, https://www.madrc.org/wp-content/uploads/2020/12/Clinical-Dementia-Rating.pdf)

Reference: Morris JC. Clinical dementia rating: a reliable and valid diagnostic and staging measure for dementia of the Alzheimer type. International psychogeriatrics. 1997. PMID: 9447441.

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Temporal prevalence

Distribution in different diseases

Distribution in different versions

# version trials
1 Clinical Dementia Rating Scale 351
2 Global Clinical Dementia Rating Scale 4
3 modified Clinical Dementia Rating Scale 1
Complementary instruments

# instruments trials
1 Mini-Mental State Examination 219
2 Alzheimer's Disease Assessment Scale 214
3 Neuropsychiatric Inventory 147
4 Alzheimer's Disease Cooperative Study 137
5 Instrumental Activities of Daily Living 41
6 Geriatric Depression Scale 39
7 Activities of Daily Living 38
8 Trail Making Test 37
9 Montreal Cognitive Assessment 36
10 EQ-5D 29
11 Columbia Suicide Severity Rating Scale 26
12 Functional Activities Questionnaire 25
13 Quality of Life in Alzheimer's Disease Scale 22
14 Repeatable Battery for the Assessment of Neuropsychological Status 21
15 Clinician's Interview Based Impression of Change 18
16 Clinical Global Impression 17
17 Zarit Burden Interview 17
18 Rey's Auditory Verbal Learning Test 17
19 Category Fluency Test 16
20 Neuropsychological Test Battery 16
21 Unified Parkinson's Disease Rating Scale 16
22 Digit Span Task 16
23 Boston Naming Test 16
24 Resource Utilization in Dementia Scale 15
25 Clock Drawing Test 15
26 Integrated Alzheimer's Disease Rating Scale 15
27 Free and Cued Selective Reminding Test 14
28 Disability Assessment for Dementia Scale 13
29 Wechsler Memory Scale 13
30 Cornell Scale for Depression in Dementia 12
31 Wechsler Adult Intelligence Scale 12
32 Controlled Oral Word Association Test 12
33 Pittsburgh Sleep Quality Index 11
34 Stroop Test 10
35 Digit Symbol Substitution Test 10
36 Short Form Health Survey 9
37 Verbal Fluency Test 9
38 Hopkins Verbal Learning Test 8
39 Barthel Index 8
40 Alzheimer's Disease Composite Score 8
41 Global Deterioration Scale 7
42 Frontal Assessment Battery 7
43 CogState 7
44 Severe Impairment Battery 6
45 Cambridge Neuropsychological Test Automated Battery 6
46 Short Physical Performance Battery 6
47 Digit Symbol Coding Task 6
48 Letter Fluency Task 6
49 Behavioral Pathology in Alzheimer's Disease Rating Scale 5
50 Cohen-Mansfield Agitation Inventory 5
51 Visual Analogue Scale 5
52 Color Trails Test 5
53 Consortium to Establish a Registry for Alzheimer's Disease 5
54 Rey-Osterrieth Complex Figure Test 5
55 Functional Assessment Questionnaire 5
56 Time Up and Go Test 5
57 State-Trait Anxiety Inventory 5
58 International Shopping List Test 5
59 Everyday Cognition Scale 5
60 Frontal Behavioral Inventory 4
61 Center for Epidemiologic Studies Depression Scale 4
62 Delis-Kaplan Executive Function System 4
63 Dementia Quality of Life Instrument 4
64 Beck Depression Inventory 4
65 Hamilton Depression Rating Scale 4
66 Perceived Stress Scale 4
67 Minute Walk Test 4
68 Mattis Dementia Rating Scale 3
69 Montgomery-Åsberg Depression Rating Scale 3
70 Physical Self-Maintenance Scale 3
71 Symbol Digit Modalities Test 3
72 Dependence Scale 3
73 California Verbal Learning Test 3
74 Quality of Life in Late-Stage Dementia Scale 3
75 Logical Memory Test 3
76 Cognitive Drug Research Battery 3
77 Apathy Inventory 3
78 Cognitive Tests 3
79 Informant Questionnaire on Cognitive Decline in the Elderly 3
80 Interpersonal Reactivity Index 3
81 Isaacs Set Test 3
82 Addenbrooke's Cognitive Examination 3
83 Parkinson's Disease Questionnaire 3
84 Benton Judgment of Line Orientation Test 3
85 Preclinical Alzheimer's Cognitive Composite 3
86 International Physical Activity Questionnaire 3
87 Mayo Fluctuations Scale 3
88 Quick Dementia Rating Scale 3
89 Early and Mild Alzheimer's Cognitive Composite 3
90 Buschke Selective Reminding Test 2
91 Cognitive Function Instrument 2
92 Functional Assessment Staging Test 2
93 Neuropsychological Assessment Battery 2
94 Alzheimer Carer Quality of Life Instrument 2
95 Quality of Life Scale 2
96 Groton Maze Learning Task 2
97 Goal Attainment Scale 2
98 Auditory Verbal Learning Test 2
99 Geriatric Anxiety Inventory 2
100 Cognitive Abilities Screening Instrument 2
101 Epworth Sleepiness Scale 2
102 World Health Organization Quality of Life 2
103 Caregiver Burden Inventory 2
104 Wechsler Logical Memory Scale 2
105 Fall Efficacy Scale 2
106 Burden Interview 2
107 Hoehn and Yahr Scale 2
108 Block Design Test 2
109 Health-Related Quality of Life 2
110 Relative Stress Scale 2
111 N-Back Task 2
112 Hospital Anxiety and Depression Scale 2
113 Hamilton Anxiety Rating Scale 2
114 Mixed Model Repeated Measures 2
115 Depression Anxiety Stress Scale 2
116 Face-Name Associative Memory Test 2
117 Brief Visuospatial Memory Test 2
118 Semantic Fluency Test 2
119 NIH EXAMINER 2
120 Young Mania Rating Scale 2
121 Prospective and Retrospective Memory Questionnaire 2
122 Balance Evaluation System Test 2
123 Freezing of Gait Questionnaire 2
124 Alzheimer's Prevention Initiative Composite Cognitive Test 2
125 Minnesota Leisure-Time Physical Activity Questionnaire 2
126 Revised Self-Monitoring Scale 2
127 The Awareness of Social Inference Test 2
128 Mayo Sleep Questionnaire 2
129 System Usability Scale 2
130 Homeostasis Model Assessment for Insulin Resistance 2
131 Insomnia Severity Index 2
132 Global Statistical Test 2
133 ADCOMS 2
134 Visual Object and Space Perception Battery 2
135 Healthy Lifestyle Index 2
136 The Executive Interview 1
137 Apathy Evaluation Scale 1
138 SSDQ 1
139 Behavioral and Psychological Symptoms of Dementia 1
140 General Health Questionnaire 1
141 Canadian Occupational Performance Measure 1
142 Sense of Competence Questionnaire 1
143 Functional Autonomy Measurement System 1
144 Resource Utilization Questionnaire 1
145 Short Term Memory Assessment 1
146 Quality of Life Questionnaire 1
147 Hamilton Anxiety and Depression Scale 1
148 modified Crichton Scale 1
149 Delayed Word Recall 1
150 Digit Cancellation Test 1
151 IDATE 1
152 Berg Balance Scale 1
153 Mini Nutritional Assessment 1
154 Cambridge Mental Disorders of the Elderly Examination 1
155 Texas Functional Living Scale 1
156 General Self-Efficacy Scale 1
157 Ten Point Clock Test 1
158 Alzheimer's Disease Functional Assessment and Change Scale 1
159 F-A-S Test 1
160 Blessed-Roth Behavior Scale 1
161 Client Service Receipt Inventory 1
162 Clinician's Interview Based Impression of Severity 1
163 Behavioural Activity Rating Scale 1
164 American National Adult Reading Test 1
165 Resource Utilization in Dementia Questionnaire 1
166 Zung Self-Rating Depression Scale 1
167 Progressive Supranuclear Palsy Rating Scale 1
168 Schwab and England Activities on Daily Living Scale 1
169 Computerised Test Battery 1
170 Letter Number Sequencing task 1
171 Physical Performance Test 1
172 Selective Reminding Task 1
173 Patient Health Questionnaire 1
174 Person-Centred Care Assessment Tool 1
175 Alzheimer's Disease Medication Administration Concerns Questionnaire 1
176 Perceived Deficits Questionnaire 1
177 Brief Agitation Rating Scale 1
178 QPSNordic 1
179 Stress of Conscience Questionaire 1
180 Word List Learning Test 1
181 Word Fluency Test 1
182 Caregiver Burden Scale 1
183 Multifaceted Empathy Test 1
184 Fazekas Scale 1
185 Sit to Stand Test 1
186 Meter Walk Test 1
187 Identification Test 1
188 Neuropsychiatric Test Battery 1
189 Cognitive Assessment Screening Test 1
190 DO80 1
191 Signoret's Battery of Cognitive Efficacy 1
192 Cambridge Cognition Examination 1
193 Dot Counting Test 1
194 Physical Activity Scale for the Elderly 1
195 Investigator's Global Evaluation Scale 1
196 Delayed Story Recall 1
197 Blessed Dementia Scale 1
198 NP 1
199 DIAN-Multivariate Cognitive Endpoint 1
200 Performance-Oriented Mobility Assessment 1
201 Patient-Reported Outcomes Measurement Information System 1
202 Composite Cognition Score-3 Domain 1
203 Camberwell Assessment of Need for the Elderly 1
204 Treatment Emergent Side Effects 1
205 Multilingual Naming Test 1
206 Chinese version of Executive Interview 1
207 Alzheimer's Prevention Initiative Autosomal Dominant Alzheimer's Disease 1
208 One Day Fluctuation Assessment Scale 1
209 Cogstate Brief Battery 1
210 Word List Memory Task 1
211 Continuous Oral Word Association Task 1
212 Psychological Well-Being Scale 1
213 Korean Dementia Screening Questionnaire 1
214 Starkstein Apathy Scale 1
215 National Institutes of Health Toolbox 1
216 Zazzo's Cancellation Test 1
217 Letter Digit Substitution Test 1
218 Working Memory Task 1
219 Resource Use Inventory 1
220 Eriksen Flanker Task 1
221 Wisconsin Card Sorting Test 1
222 Smell Identification Test 1
223 QuQu Scale 1
224 Nerve Function Monitoring 1
225 Neuropathy Total Symptom Score 1
226 Morisky-Green Test 1
227 Quality of Life in Neurological Disorders 1
228 Brief Parkinsonism Rating Scale 1
229 Semi-directive Psychiatric Interview 1
230 UCSD Performance-Based Skills Assessment 1
231 Treatment Satisfaction Questionnaire for Medication 1
232 Parkinson's Disease Cognitive Rating Scale 1
233 Quantitative Movement Testing 1
234 Hachinski Ischemic Score 1
235 Behaviour Approach Scale 1
236 Behaviour Inhibition Scale 1
237 Big Five Inventory 1
238 Interpersonal Adjective Scale 1
239 Social Behaviour Observer Checklist 1
240 Social Norms Questionnaire 1
241 Global Physical Activity Questionnaire 1
242 Functional Outcomes of Sleep Questionnaire 1
243 Self-Administered Gerocognitive Exam 1
244 modified Somatic Perception Questionnaire 1
245 Life Satisfaction Scale 1
246 Friendship Scale 1
247 Zung Self-Rating Anxiety Scale 1
248 Affect and Activity Indicators of QOL 1
249 Behavioral Rating Scale 1
250 Caregiver Assessment Measure 1
251 Family Accommodation Scale for Obsessive Compulsive Disorder-Self Rated 1
252 Social Emotional Cognition Test 1
253 Raven's Progressive Matrices 1
254 Amsterdam IADL Questionnaire 1
255 Dementia Knowledge Assessment Scale 1
256 Body Position Spatial Task 1
257 Columbia Classification Algorithm for Suicide Assessment 1
258 Penn Parkinson's Daily Activities Questionnaire 1
259 Physician Withdrawal Checklist 1
260 Cued Recall Test 1
261 Story Memory Test 1
262 Structured Clinical Interview for DSM Disorders 1
263 Body Awareness Rating Scale 1
264 Personal Wellbeing Index 1
265 Client Socio-Demographic and Service Receipt Inventory 1
266 Professional Care Team Burden Scale 1
267 Multidimensional Scale of Perceived Social Support 1
268 Computerized Cognitive Battery 1
269 Resident Assessment Instrument-Minimum Data Set 1
270 Autobiographical Memory Interview 1
271 Quality of Life Enjoyment and Satisfaction Questionnaire 1
272 Carers of Older People in Europe Index 1
273 Quebec User Evaluation of Satisfaction with Assistive Technology 1
274 World Health Organization Well-Being Index 1
275 Cognitive Activity Questionnaire 1
276 Physical Activity Questionnaire 1
277 Rush Food Frequency Questionnaire 1
278 Visual Search Task 1
279 Richards-Campbell Sleep Questionnaire 1
280 Burden Scale for Family Caregivers 1
281 Winterlight Speech Assessment 1
282 Lure Discrimination Index 1
283 Four Square Step Test 1
284 ADNI Battery Composite 1
285 Frailty Index 1
286 Depression im Alter Scale 1
287 Backward Corsi Task 1
288 Composite Physical Function Scale 1
289 Executive Abilities: Measures and Instruments for Neurobehavioral Evaluation and Research 1
290 Lubben Social Network Scale 1
291 National Alzheimer's Coordinating Center Uniform Data Set Neuropsychological Battery 1
292 Spontaneous Speech Test 1
293 Word Pairs Associates Task 1
294 Continuous Paired Associate Learning Test 1
295 Benson Figure Copy and Recall Task 1
296 Tablet-Based Cognitive Assessment 1
297 Altoida Neuro Motor Index 1
298 Narcissistic Personality Inventory 1
299 Gain in Alzheimer's Care Instrument 1
300 Functional Assessment Scale 1
301 Spanish and English Neuropsychological Assessment Scales 1
302 Visual Association Memory Test 1
303 Edinburgh Cognitive and Behavioral Amyotrophic Lateral Sclerosis Screen 1
304 NIH Alzheimer's Disease Centers 1
305 Screening for Aphasia in NeuroDegeneration Scale 1
306 Leisure-Time Activities Questionnaire 1
307 Word and Category Fluency Test 1
308 Behavioral Pattern Separation-Object Test 1
309 International Daily Symbol Substitution Test-Medicines 1
310 FINGER Diet Index 1
311 Multidimensional Psychological Questionnaire 1
312 Balance Error Scoring System 1
313 NeuroTrax computerized cognitive evaluation battery 1
314 SPARK Test Cognitive Impairment Index 1
315 Investigating Choice Experiments CAPability measure for Older people 1
316 Family Quality of Life 1
317 Cumulative Illness Rating Scale 1
318 Patient Assessment of Chronic Illness Care 1
319 Short Assessment of Patient Satisfaction 1
320 European Health Literacy Survey Questionnaire 1
321 Healthy Diet Index 1
322 Engagement and Independence in Dementia Questionnaire 1
323 Autoimmunity Marker Screening Test 1
324 Program Participation Questionnaire 1
325 Semi-Structured Post-intervention Questionnaire 1
326 Hong Kong List Learn Test 1
327 Simon Task 1