Dementia is an umbrella term used to describe a range of disorders. There are many forms of dementia, the most common forms including Alzheimer’s disease, Vascular dementia, Lewy bodies and frontotemporal. Dementia is a progressive disorder with symptoms gradually worsening over time. 

Global Deterioration Scale (GDS) is an assessment tool used to determine which stage of dementia a person is experiencing. The tool is used as a rough outline to determine the best course of care or treatment for the person diagnosed with dementia. While not everyone will experience the same symptoms there is a 7-stage progression most individuals will follow. These 7 stages are then categorised by 4 diagnosis, No dementia, early-stage dementia, mid-stage dementia and late-stage dementia.

No Dementia 

Early-Stage Dementia

Mid-Stage Dementia

Late-Stage Dementia 

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