1. The patient meets basic diagnostic criteria for dementia but also:
a. Gradual onset and continued cognitive decline.
b. Cognitive deficits are not due to another medical condition or substance.
c. Symptoms are not caused by another psychiatric disorder.
2. Alzheimer's Disease is further classified as:
a. Early or late onset b. With delirium, delusions, depressed mood, or uncomplicated
3. The average life expectancy after onset of illness is 8-10 years.
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