WASHINGTON, April 17 (Reuters) - About 300,000 U.S. troops returning from Iraq and Afghanistan suffer symptoms of post-traumatic stress disorder or depression, but about half receive no care, an independent study said on Thursday.

The study by the RAND Corp. also estimated that another 320,000 troops have sustained a possible traumatic brain injury during deployment. But researchers could not say how many of those cases were serious or required treatment.

Billed as the first large-scale nongovernmental survey of its kind, the study found that stress disorder and depression afflict 18.5 percent of the more than 1.5 million U.S. forces who have deployed to the two war zones.

The numbers are roughly in line with previous studies. A February assessment by the U.S. Army that showed 17.9 percent of U.S. troops in Iraq and Afghanistan suffering from acute stress, depression or anxiety in 2007, down from 19.1 percent in 2006.

But the 500-page RAND study, based in part on interviews with more than 1,900 soldiers, sailors and Marines, also said that only half of troops suffering debilities receive care. And in half of those cases, the care is only minimally adequate.

"There is a major health crisis facing those men and women who have served our nation in Iraq and Afghanistan," said Terri Tanielian, a RAND researcher who helped head the study.

"Unless they receive appropriate and effective care for these mental health conditions, there will be long-term consequences for them and for the nation."

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I made the point repeatedly in earlier threads relating to the Bush War that this huge cost to our national human resource was never predicted byany of the men who should have known better, and they left this tragic aftermath to be cared for by the careless winds of chance. This is cruelty unbecoming a dictator.

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