Because of lingering questions about the bounds of the PTSD diagnosis, which is only three decades old, people with mental problems are eligible only for treatment assistance, whereas people with physical ailments, in most cases breathing difficulties, qualify for both treatment and compensation.
http://www.nytimes.com/2011/08/10/nyregion/post-traumatic-stress-disorder-from-911still-haunts.html
Going through a trauma does not mean you'll get PTSD, though. Even though over half of us go through some type of trauma, a much smaller percent develop PTSD. Here are some facts (based on the U.S. population): About 7 or 8 out of every 100 people (or 7-8% of the population) will have PTSD at some point in their lives.
http://www.ptsd.va.gov/public/PTSD-overview/basics/how-common-is-ptsd.asp
Millions of dollars will be spent treating them over the next few years through the James Zadroga 9/11 Health and Compensation Act, passed by Congress in December, which provides $4.3 billion to compensate and treat people with 9/11-related illnesses.
http://www.nytimes.com/2011/08/10/nyregion/post-traumatic-stress-disorder-from-911still-haunts.html
1 About 7 or 8 out of every 100 people (or 7-8% of the population) will have PTSD at some point in their lives.  About 8 million adults have PTSD during a given year. This is only a small portion of those who have gone through a trauma.
http://www.ptsd.va.gov/public/PTSD-overview/basics/how-common-is-ptsd.asp
70% of adults in the U.S. have experienced some type of traumatic event at least once in their lives. This equates to approximately 223.4 million people. Up to 20% of these people go on to develop PTSD. As of today, that equates to approximately 44.7 million people who were or are struggling with PTSD. An estimated 8% of Americans − 24.4 million people − have PTSD at any given time.
http://www.ptsdunited.org/ptsd-statistics-2/
Even though over half of us go through some type of trauma, a much smaller percent develop PTSD. Here are some facts (based on the U.S. population): 1  About 7 or 8 out of every 100 people (or 7-8% of the population) will have PTSD at some point in their lives.  About 8 million adults have PTSD during a given year.
http://www.ptsd.va.gov/public/PTSD-overview/basics/how-common-is-ptsd.asp
Extrapolating from a registry of people exposed to the attack, the city’s health department has estimated that 61,000 of the 409,000 in the disaster area experienced “probable” PTSD within six years of 9/11.
http://www.nytimes.com/2011/08/10/nyregion/post-traumatic-stress-disorder-from-911still-haunts.html
1 About 8 million adults have PTSD during a given year. This is only a small portion of those who have gone through a trauma.  About 10 of every 100 (or 10%) of women develop PTSD sometime in their lives compared with about 4 of every 100 (or 4%) of men. Learn more about women, trauma and PTSD.
http://www.ptsd.va.gov/public/PTSD-overview/basics/how-common-is-ptsd.asp
70% of adults in the U.S. have experienced some type of traumatic event at least once in their lives. Up to 20% of these people go on to develop PTSD. As of today, that equates to approximately 44.7 million people who were or are struggling with PTSD. An estimated 8% of Americans − 24.4 million people − have PTSD at any given time. That is equal to the total population of Texas.
http://www.ptsdunited.org/ptsd-statistics-2/
No one can say exactly how many people were exposed to the attack, and how many will eventually become physically or mentally sick. The federal government will allow the Mount Sinai and public hospitals programs to grow by 25,000 patients each over the next five years.
http://www.nytimes.com/2011/08/10/nyregion/post-traumatic-stress-disorder-from-911still-haunts.html
how many people are affected by ptsd
There are 8 million people affected by post traumatic stress disorder. 8 million people are affected by posttraumatic stress disorder.