Approximately 9.2 million servicemen served in the United States military during the Vietnam War. As of 2013, about 75 percent were still alive. Of the 9.2 million, approximately 2.7 million of them served in Vietnam. The National Vietnam Veterans' Readjustment Study estimated 15.2% of male and 8.5% of female Vietnam theater Veterans qualified for diagnosis of current PTSD. Further, 35.8% of men and 17.5% of women who experienced high levels of war-zone exposure met the criteria for PTSD.
The lifetime PTSD estimates for Vietnam theater Veterans are 30.9 percent for men and 26.9 percent for women. The lifetime PTSD estimates refer to those who have suffered PTSD at any point in their life after they returned from Vietnam. An astounding 84.8 percent of Vietnam veterans diagnosed with PTSD still suffer at least moderate impairment more than three decades after the end of the conflict. Almost half of Vietnam veterans with PTSD have been arrested at least once, and 11.5 percent have been convicted of a felony. Roughly 161,000 veterans were still receiving disability compensation for PTSD as of 2004.
Approximately 47 percent of homeless veterans are those that served during the Vietnam era. The annual compensation paid out to Vietnam War veterans doubled from 2003 to 2012. The $19.7 billion of $44.4 billion paid out to veterans in 2012 was paid to Vietnam War veterans.