New Way to Define Alzheimer's

New study may lead to major reclassification of the disease.
1:05 | 02/07/12

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Transcript for New Way to Define Alzheimer's
A major reclassification. Of alzheimer's disease may be in the works a new study finds that many people diagnosed with mild. Or very mild alzheimer's disease -- landed a new medical category that does not even mention the word alzheimer's it's called. Mild cognitive impairment. The revised criterion comes out of a new study published in the archives of neurology. Here's what had -- work doctors examined over 171000. People. -- an average age of about 75 years old only patients with normal cognition. Mild cognitive impairment or alzheimer's disease dementia were included in the research project. -- study suggests that 99 point 8% of patients currently diagnosed with very mild alzheimer's disease dementia. And close to 93% of those with the mild form of the disease. Could be -- classified as having simply mild cognitive impairment. With this medical minute I'm doctor Timothy John.

This transcript has been automatically generated and may not be 100% accurate.

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