Study: Alzheimer's harder to diagnose in patients over 80

August 12, 2011 9:23:24 AM PDT
Alzheimer's may be harder to spot in people over the age of 80, which means many cases may go undiagnosed.

Researchers studied more than 200 people. Some had been diagnosed with Alzheimer's while others had not. They were also divided up by age those 60- to 75-years-old and those 80 and older.

The researchers found that people over 80 had less difference in brain size compared to healthy peers of the same age. And though they had similar levels of thinking impairment as younger Alzheimer's patients, the difference compared to healthy people of the same age was less pronounced.

This study was reported in the journal Neurology.

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