IPAP Post-Traumatic Stress Disorder Algorithm Notes

Posttraumatic stress disorder (PTSD) is a condition characterized by the development of symptoms following a traumatic event, including symptoms of intrusive thoughts and recollections, avoidance of reminders of the trauma, emotional numbing, and hyper-arousal. PTSD occurs in approximately 8% of the population and follows a chronic course in up to 50% of subjects (Kessler et al, 1995; Breslau et al, 1991; Kessler et al, 2000). According to the most recent major US epidemiological survey, as much as 12% of the population has active PTSD lasting over 20 years’ duration (Breslau et al, 1998; Kessler, 2000). Receipt of treatment is associated with an overall shorter course of PTSD (LOE 3) (Kessler et al, 1995).