Of that group, nearly 76 percent had suffered through at least one traumatic event.

About 1 percent of adults suffer from it at some point in their lives.

Eighty percent of Americans will suffer from lower back pain.

One study reported 74 percent of married women had suffered physical violence.

Of this group, at least 50 percent also suffer from depression.

That's why 40 percent of the American people had suffered a decline in real income since the mid-1970s.

It said 77 percent of the workers suffered respiratory problems.

In each treatment group, 65 percent actually suffered a heart attack.

An estimated 44 percent of Americans suffer from it at least once a month.

The group found that almost 5 percent of the patients suffered an injury.