“…Emergency departments in the USA, for example, evaluate over 30 million individuals with traumatic injuries every year (Bergen and National Center for Health Statistics (U.S.), 2008; Bonnie, Fulco, and Liverman, 1999; Cougle, Kiplatrick, and Resnick, 2012; Kilpatrick et al, 2013; McCaig, 1994; National Center for Injury Prevention, 2012; Rice, MacKenzie, Jones, and Associates, 1989); the prevalence of PTSD following acute care admissions is similar to that seen in survivors who are not brought to medical attention (Ameratunga, Tin, Coverdale, Connor, & Norton, 2009; Golding, 1999; Lipsky, Field, Caetano, & Larkin, 2005). PTSD longitudinal trajectories stabilize at 9–12 months after trauma exposure (Kessler, Sonnega, Bromet, Hughes, & Nelson, 1995), with symptoms at 9 and 12 months equally predicting symptoms at 2 and 6 years (Bryant, O’Donnell, Creamer, McFarlane, & Silove, 2013; Shalev et al, 2012; Shalev, Ankri, Peleg, Israeli-Shalev, & Freedman, 2011). Studying PTSD in acute care settings provides an opportunity to follow exposed individuals early on after traumatic events and therefore offers valuable longitudinal information difficult to obtain elsewhere.…”