http://www.nimh.nih.gov/health/topic...cs/index.shtml
An estimated 26.2 percent of Americans ages 18 and older — about one in four adults — suffer from a diagnosable mental disorder in a given year.
Nearly half (45 percent) of those with any mental disorder meet criteria for 2 or more disorders, with severity strongly related to comorbidity
http://www.nimh.nih.gov/science-news...urvivors.shtml
Mental Disorders Persist Among Hurricane Katrina Survivors
http://www.nimh.nih.gov/health/topic...sd/index.shtml
Post-Traumatic Stress Disorder (PTSD)