"One study found that military personnel are more likely to report “attitudinal barriers,” such as concerns about being seen as weak or that unit leadership would treat them differently, to seeking out mental health services, rather than “structural barriers,” such as the cost of health care (Hoge et al., 2004). Military personnel experiencing symptoms of PTSD may also experience increased feelings of being a burden on the military. One study of OIF veterans found that those with PTSD (approximately 16% of the sample) reported more sick call visits, more missed workdays, and more problems with physical health (Hoge et al., 2007). Furthermore, approximately one third of the homeless population consists of military veterans (Gamache, Rosenheck, & Tessler, 2003), a situation that may further increase perceived burdensomeness on family and/or society."