“…In most studies, several symptoms were identified (Stoll et al, 1999;Jones et al, 2004 2006; Myhren et al, 2009;Myhren et al, 2010aMyhren et al, , 2010bPeris et al, 2011;Garrouste-Orgeas et al, 2012;Wade et al, 2012;Rosendahl et al, 2013), whereas in others fewer symptoms were found, although still more than seen in the general population (Schelling et al, 1998;Cuthbertson et al, 2004;Nickel et al, 2004;Girard et al, 2007;Samuelson et al, 2007;Davydow et al, 2013;Svenningsen, 2013). In some studies, prior psychiatric disease was correlated with PTSD after ICU discharge (Nickel et al, 2004;Davydow et al, 2013), but not in all (Svenningsen, 2013), and anxiety and depression are sometimes described in combination with PTSD (Jones et al, 2004;Myhren et al, 2009;Myhren et al, 2010aMyhren et al, , 2010bGarrouste-Orgeas et al, 2012;Herbst and Drenth, 2012;Davydow et al, 2013;Rosendahl et al, 2013). In one qualitative study, patients suffering from PTSD described a need to make sense of their traumatic memories, and the transformation of one's self (Corrigan et al, 2007).…”