It is estimated that about 24 million patients of Alzheimer's are present all over the world and the number is growing fast. The number of patients with Alzheimer's and other types of dementia is expected to surge to 81 million by the year 2040!
One important question that is always asked is what is the life expectancy of Alzheimer's. This is especially asked by people who are caregivers of such patients as they do not want to see their loved ones decline in the manner caused by the disorder.
Several studies have been done on the life expectancy of Alzheimer's patients. One such research was done from the year 1991 until the year 2005 when 13,000 people were studied. During the course of the study, 438 participants developed either Alzheimer's or other type of dementia, and eight-one percent of people who developed dementia succumbed before the study could be completed.
Based on the study, the following was concluded about the life expectancy of Alzheimer's:
- After being diagnosed, women tend to have an average life expectancy of 4.6 years, while in men the life expectancy is 4.1 years.
- Men and women diagnosed with Alzheimer's tend to live for 10.7 years when they are under the age of seventy, while the life expectancy reduces dramatically to 3.8 years for those who are diagnosed with the disease when they are ninety and above.
- People who are frail when the disorder is diagnosed tend to succumb faster compared to those who do not have health issues at the time of being diagnosed with Alzheimer's.
- The average life expectancy of a person diagnosed with the disorder is about 4.5 years.
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