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Scale acronym | Definition | Description |
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ADAS-Cog | Alzheimer’s Disease Assessment Scale Cognitive Subscale | Standard instrument for measuring cognitive ability on an 11-item scale in patients with mild-to-moderate disease. Scores range from 0 to 70, with higher scores indicating higher impairment |
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ADCS-ADL | Alzheimer’s Disease Cooperative Study- Activities for Daily Living | Assessment of functional abilities on a 19-item, 54-point scale modified for moderate-to-severe dementia (a 23-item scale is used for mild-to-moderate disease subjects). A higher score indicates better functioning |
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CIBIC-plus | Clinician’s Interview-Based Impression of Change plus | Caregiver input evaluates overall global change relative to the baseline level in cognitive, functional, and behavioural aspects. The scale ranges from 1 (very much improved) to 7 (very much worsened) |
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FAST | Functional Assessment Staging | Evaluates dementia progression from stage 1 (normal) to 7 (severe dementia) |
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GDS | Global Deterioration Scale | Evaluates overall cognitive and functional capacity on a 7-stage scale, based on the patient and caregiver assessment. Higher stages indicate greater impairment |
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MMSE | Mini-Mental State Examination | Evaluates the cognitive function on a 30-point scale. A higher score indicates a better function |
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NPI | Neuropsychiatric Inventory | Caregiver-rated assessment that evaluates the patient’s behaviour on a 12-item, 144-point scale. A lower score indicates a better behavior |
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SIB | Severe Impairment Battery | Evaluates the cognitive dysfunction on a 40-item, 100-point scale in patients with moderate-to-severe Alzheimer’s disease. A higher score indicates better cognitive functioning |
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