Cohen said that the long-term prospects of head-injured soldiers warrant study. "Are these people more likely to die?" he said. "We know that people with severe head trauma are more likely to develop certain types of dementia. Not just eight years down the line, but what happens 30 years down the line?"
The study is scheduled for presentation this week at the American Headache Society's annual meeting in Los Angeles. The data and conclusions should be viewed as preliminary until published in a peer-reviewed journal.
The Defense and Veterans Brain Injury Center has more about combat-related traumatic brain injury.
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