A recent RAND Corporation Report summarized 22 studies of OIF/OEF (Operation Iraqi Freedom/Operation Enduring Freedom) veterans, giving a typical range of 5-15% for veterans meeting diagnostic criteria for PTSD, with some studies reporting rates as high as 30%. Of those active duty service members meeting criteria for mental health referral based on the post-deployment health assessment, only about half (41.8-61.0%) received mental health services. Many individual and system factors (e.g., stigma, concern about promotion/employment, wait times, lack of providers) prevented access.