Alzheimer's Society
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Life expectancy

The life expectancy of a person with dementia is unpredictable, and the disease can progress for up to around ten years. Although dementia is a life-shortening illness, another condition or illness (such as bronchopneumonia) may trigger death and be given as cause of death on the death certificate.

For information see factsheets 458, The progression of Alzheimer's disease and other dementias and 417, Later stages of dementia.

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